US Pat. No. 11,067,162

GEARED ARCHITECTURE GAS TURBINE ENGINE WITH OIL SCAVENGE

Raytheon Technologies Cor...


1. A gas turbine engine, comprising:a fan section including a plurality of fan blades rotatable about an engine longitudinal axis;
a geared architecture including a sun gear engaged to a plurality of intermediate gears circumscribed by a ring gear;
a turbine section including a fan drive turbine coupled to drive the fan through the geared architecture and at least one other turbine forward of the fan drive turbine; and
a plurality of baffles arranged between the plurality of intermediate gears of the geared architecture, each of the plurality of baffles including a multiple of oil jets that direct oil toward a gear mesh between one of the plurality of intermediate gears and the sun gear and an oil scavenge scoop that extends into a groove in the sun gear and a scavenge passage with an inner scavenge passage wall and an outer scavenge passage wall that extends partially into the groove in the sun gear.

US Pat. No. 11,067,161

TRANSMISSION WITH A SEPARATE BREATHER ELEMENT

Getrag Ford Transmissions...


1. A transmission for a motor vehicle, comprising:a housing, which has a first housing part and a second housing part, wherein, in an assembled state of the transmission, the first housing part and the second housing part are joined together,
a vent duct through which air can escape from the transmission, and
a separate breather element, which extends into the first housing part and forms at least one first duct wall of the vent duct, wherein the breather element is located in a plug-in position in the first housing part and has a fixing stop, against which the second housing part bears in the assembled state of the transmission and thus securely fixes the breather element in the plug-in position,
wherein the breather element has a splash guard in order to make it more difficult for oil to enter the vent duct,
wherein the splash guard is designed as a segment of a cylindrical lateral surface which is arranged coaxially to the at least one first duct wall, and
wherein the cylindrical lateral surface and the at least one first duct wall are joined by a radial web.

US Pat. No. 11,067,160

METHOD FOR ASSEMBLING A DRIVE UNIT


1. A method for assembling a drive unit for a vehicle, wherein the drive unit has an electric machine and a transmission device, the method comprising:mounting the transmission device in a transmission housing;
passing an assembly mandrel axially through an aperture in the transmission housing and through a pinion shaft, which is designed as a hollow shaft and is rotatably mounted in the transmission housing;
centering a rotor shaft, which is designed at least partially as a hollow shaft, on the assembly mandrel;
pushing a rotor of the electric machine axially onto the rotor shaft;
inserting the rotor shaft axially into the pinion shaft, wherein a set of splines on the rotor shaft engages in a set of splines on the pinion shaft;
pushing a stator of the electric machine axially onto the rotor of the electric machine and fixing the stator on the transmission housing; and
removing the assembly mandrel and closing the aperture in the transmission housing with a closure cover.

US Pat. No. 11,067,159

ROBOT, GEAR DEVICE, AND GEAR DEVICE UNIT

Seiko Epson Corporation


1. A robot comprising:a first member;
a second member configured to pivot with respect to the first member;
a gear device configured to transmit, from one side to another side of the first member and the second member, a driving force for pivoting the second member with respect to the first member; and
a driving source configured to generate the driving force, wherein
the gear device includes:an internal gear including internal teeth; and
an external gear including external teeth, which partially mesh with the internal gear, and having flexibility, the external gear relatively rotating around a rotation axis with respect to the internal gear; and
a wave motion generator configured to come into contact with an inner circumferential surface of the external gear and move a meshing position of the internal gear and the external gear in a circumferential direction around the rotation axis,

the gear device further includes a wall section disposed at an end portion of tooth width of the internal gear and coupled to two dedenda adjacent to each other in the circumferential direction of the internal gear and a tooth bottom present between the two, and
wherein length in a tooth depth direction from the tooth bottom of the wall section is equal to or smaller than tooth depth of the internal gear.

US Pat. No. 11,067,158

DRIVING FORCE DISTRIBUTION APPARATUS

JTEKT CORPORATION, Osaka...


1. A driving force distribution apparatus configured to output a driving force from a first output rotational member and a second output rotational member, the driving force input to the first output rotational member and the second output rotational member from an input rotational member via an intermediate rotational member, the driving force distribution apparatus comprising:a driving force connecting/disconnecting mechanism configured to connect or disconnect the driving force between the input rotational member and the intermediate rotational member;
a first driving force adjustment mechanism configured to adjust the driving force to be transmitted between the intermediate rotational member and the first output rotational member;
a second driving force adjustment mechanism configured to adjust the driving force to be transmitted between the intermediate rotational member and the second output rotational member;
a hydraulic unit configured to generate pressures of hydraulic oil for operating the driving force connecting/disconnecting mechanism, the first driving force adjustment mechanism, and the second driving force adjustment mechanism; and
a casing that houses the driving force connecting/disconnecting mechanism, the first driving force adjustment mechanism, and the second driving force adjustment mechanism, wherein
the casing has a plurality of cylinder chambers in which hydraulic pressures of the hydraulic oil supplied from the hydraulic unit are applied to a piston of the driving force connecting/disconnecting mechanism, a piston of the first driving force adjustment mechanism, and a piston of the second driving force adjustment mechanism,
the hydraulic unit includes:a single hydraulic pump; and
a hydraulic circuit configured to distribute a pressure of the hydraulic oil, which is discharged from the hydraulic pump, to the plurality of cylinder chambers, and

the pressure in the cylinder chamber when the piston of the driving force connecting/disconnecting mechanism starts to operate is lower than the pressures when the piston of the first driving force adjustment mechanism and the piston of the second driving force adjustment mechanism start to operate.

US Pat. No. 11,067,157

TORQUE CONVERTER CLUTCH SYSTEM


1. A torque converter, comprising:a front cover configured to receive an input torque;
an impeller having an outer shell non-rotatably connected to the front cover;
a turbine fluidly coupled with the impeller; and
a lock-up clutch disposed axially between the front cover and the turbine, the lock-up clutch comprising:a piston axially displaceable and including a first opening extending from a first axial side facing the front cover to a second axial side facing the turbine;
a seal ring fixed to the front cover and sealed to the piston;
a first fluid chamber formed at least in part by the piston and the turbine;
a second fluid chamber formed at least in part by the front cover, the seal ring, and the piston; and
a valve connected to the piston on the second axial side and configured to seal the first opening in response to a first pressure in the first fluid chamber exceeding a second pressure in the second fluid chamber such that fluid is prevented from passing through the first opening in the piston, wherein the front cover includes a second opening defined therein located radially outward of the seal ring and arranged such that forced cooling fluid flow passes through the lock-up clutch to the second fluid chamber via the second opening when the lock-up clutch is closed.


US Pat. No. 11,067,156

FRICTION BRAKE AND POWER STRUT THEREWITH

Hi-Lex Controls, Inc., R...


1. A friction brake assembly comprising:a brake housing;
an input coupling element with a splined extension;
an output coupling element with a splined extension; and
a torsion spring;
wherein the input coupling element has an axial protrusion forming a partial cylinder wall with an angular gap over a defined angular range;
wherein the output coupling element has a projection protruding into the at least one angular gap, wherein the projection has an angular width smaller than the angular gap;
wherein the torsion spring is a coil spring with coil ends forming two radially inward pins protruding into the angular gap in the input coupling element between the partial cylinder wall and the projection so that the projection is between the two inward pins;
wherein the angular gap, the projection, and the inward pins have angular widths that are dimensioned to allow for a limited relative rotation between the input coupling element and the output coupling element and wherein the pins have a relaxed position at a distance from each other that is smaller than the width of the angular gap and greater than the width of the projection.

US Pat. No. 11,067,155

SPINDLE DRIVE FOR CURVED PATH OF MOVEMENT

Hi-Lex Controls, Inc., R...


1. A spindle drive assembly comprising:a threaded spindle rotatable about a spindle axis;
a threaded spindle nut disposed on the threaded spindle and configured to travel along the spindle axis via a rotation of the spindle;
a ball stud attached to the spindle nut, the ball stud extending radially away from the spindle nut;
an attachment plate configured to be attached to a part to be moved; and
a ball socket connected to the attachment plate and having a cavity dimensioned for receiving the ball stud.

US Pat. No. 11,067,154

TOROIDAL CONTINUOUSLY VARIABLE TRANSMISSION

KAWASAKI JUKOGYO KABUSHIK...


1. A toroidal continuously variable transmission comprising:a first disc and a second disc disposed so that the first disc and the second disc are rotatable around a common rotational axis line, the first disc and the second disc facing each other;
a power roller which is tiltably disposed between the first disc and the second disc;
a pressing device of a loading cam type, the pressing device including a cam plate which is rotatable around the rotational axis line, and a roller unit including at least one roller sandwiched between a cam surface of the second disc and a cam surface of the cam plate; and
a cam plate support supporting a back surface of the cam plate, the back surface being opposite to the cam surface of the cam plate, at a radial position conforming to a radial position of at least a portion of the roller unit.

US Pat. No. 11,067,153

SPEED CHANGE DEVICE

Genesis Advanced Technolo...


1. A speed change device comprising:an inner race having an outer surface;
an outer race having an inner surface;
a set of orbital rollers including inner rollers in rolling contact with the outer surface of the inner race and outer rollers in rolling contact with the inner surface of the outer race, wherein the outer rollers are longer than the inner rollers and the outer rollers are connected to be driven by an input ring coaxial with the inner race and the outer race;
each inner roller being in rolling contact with two outer rollers; and
either A or B or both:A: each inner roller is formed of two or more axially aligned roller sections, each section having a respective cylindrical torque transmitting surface;
B: each outer roller is formed of two or more axially aligned roller sections, each section having a respective cylindrical torque transmitting surface.


US Pat. No. 11,067,152

DRIVE DEVICE FOR A MOTOR VEHICLE


1. A drive device for a motor vehicle, comprising a drive machine which is operatively connected via a drive shaft to a transmission device, the transmission device having a first planetary set with a plurality of planetary gears, a multi-step planetary set with a plurality of multi-step planetary gears, and a differential transmission with a second and third planetary set, each of the first, second, and third planetary sets having a plurality of planetary gears, the planetary gears of the first planetary set being arranged rotatably on a first planetary carrier and being in tooth engagement radially between a first sun and a first internal gear, each multi-step planetary gear having a first and a second gearwheel which are connected fixedly to one another so as to rotate together, the multi-step planetary gears being arranged rotatably on a second planetary carrier, the first gearwheel being in tooth engagement with a second sun, and the second gearwheel being in tooth engagement with a second internal gear, and the first planetary carrier being connected fixedly to the second sun so as to rotate with it, and the first internal gear being fixed on a housing in a stationary manner, the respective planetary gears of the second and third planetary set, furthermore, being mounted rotatably on the second planetary carrier, the planetary gears of the second planetary set being in tooth engagement with a third sun, and the planetary gears of the third planetary set being in tooth engagement with a fourth sun, and the planetary gears of the second planetary set being in tooth engagement in pairs with the planetary gears of the third planetary set.

US Pat. No. 11,067,151

PLANETARY GEARBOX


1. A planetary gearbox comprising:a driving shaft;
a driving planetary gear train unit arranged on the driving shaft, wherein the driving planetary gear train unit comprises:a first sun gear mounted on the driving shaft;
at least one first planet gear that is rotatably mounted on a first planet axle and meshed to the first sun gear;
a first ring gear that is meshed to the first planet gear;
at least one first circular planet carrier arm (CPCA) that is mechanically coupled to the first planet axle; and
a first brake assembly coupled to the first circular planet carrier arm;

a driven planetary gear train unit comprising:a second sun gear rotatably mounted on the driving shaft;
at least one second planet gear that is rotatably mounted on a second planet axle and meshed to the second sun gear;
a second ring gear that is meshed to the second planet gear;
at least one second circular planet carrier arm (CPCA) that is mechanically coupled to the second planet axle; and
a second brake assembly coupled to the second circular planet carrier arm;
wherein the first ring gear of the driving planetary gear train unit is coupled to the second ring gear of the driven planetary gear train unit;

a third planetary gear train unit comprising:a third sun gear mounted on the driving shaft;
at least one third planet gear that is rotatably mounted on a third planet axle and meshed to the third sun gear;
a third ring gear that is meshed to the third planet gear;
at least one third circular planet carrier arm (CPCA) that is mechanically coupled to the third planet axle; and
a third brake assembly coupled to the third ring gear;

a fourth planetary gear train unit comprising:a fourth sun gear mounted on the driving shaft;
at least one fourth planet gear that is rotatably mounted on a fourth planet axle and meshed to the fourth sun gear;
a fourth ring gear that is meshed to the fourth planet gear;
at least one fourth circular planet carrier arm (CPCA) that is mechanically coupled to the fourth planet axle; and
a fourth brake assembly coupled to the fourth ring gear;

a carrier arm disc; and
a driven shaft
wherein the second sun gear is mechanically coupled to the third CPCA, the third CPCA is mechanically coupled to the fourth CPCA, the fourth CPCA is mechanically coupled to the carrier arm disc and the carrier arm disc is mechanically coupled to the driven shaft.

US Pat. No. 11,067,150

TRANSMISSION SPEED REDUCTION DEVICE

CHENGDU ZHONGLIANGCHUANGO...


1. A transmission device including a worm assembly (1) and a worm wheel assembly (3) which are disposed in a casing (2), wherein the worm wheel assembly (3) is accommodated in the worm assembly (1), characterized in that, the worm wheel assembly (3) is assembled into an approximately sphere by an approximately hemispherical lower worm wheel body (31) and an approximately hemispherical upper worm wheel body (33); each of the lower worm wheel body (31) and the upper worm wheel body (33) is provided with a circulating groove; each groove of the lower worm wheel body (31) and the upper worm wheel body (33) is comprised of a spiral groove disposed on the outer surface thereof and a guide groove disposed inside thereof which connects with the spiral groove consecutively; the groove is filled full with spherical first worm wheel teeth (34); and the first worm wheel teeth (34) can reciprocate in the groove, so as to achieve primary stage mesh transmission by meshing with the worm teeth of the worm assembly (1) in a rolling manner.

US Pat. No. 11,067,149

CENTRIFUGAL PENDULUM


1. A centrifugal pendulum comprising:a first flange;
a first pendulum mass:arranged on the first flange for movement in a radial direction relative to an axis of rotation and relative to the first flange; and
comprising:an innermost point;
an outermost point;
a radial extension between the innermost point and the outermost point; and
a first region arranged radially inward at most five percent (5%) of the radial extension from the outermost point; and


a first preloading element arranged to contact the first pendulum mass in the first region for axially preloading the first pendulum mass with respect to the first flange.

US Pat. No. 11,067,148

HYDRAULIC DAMPER

The Dynamic Engineering S...


1. A hydraulic damper, comprising:a damper cylinder containing a fluid;
a piston slidably retained within the damper cylinder, the piston dividing the damper cylinder into a first fluid chamber and a second fluid chamber;
a piston rod for driving the piston within the damper cylinder, the piston rod comprising
a fluid passageway having a first opening in fluid communication with the first fluid chamber, and a second opening in fluid communication with the second fluid chamber;
wherein the piston is slidably moveable along the direction of elongation of the damper cylinder in compression and rebound, where compression results in a flow of fluid through the fluid passageway from the first fluid chamber to the second fluid chamber, and rebound results in a flow of fluid through the fluid passageway from the second fluid chamber to the first fluid chamber; and
an adjustment mechanism located within the fluid passageway between the first opening, second opening and comprising:
a float assembly, slidably retained within the fluid passageway and configured to allow fluid to flow through the fluid passageway, while also being driven by the flow of fluid through the fluid passageway, such that when the piston moves in compression, at least a portion of the float assembly will be driven toward the second opening, and when the piston moves in rebound, at least a portion of the float assembly will be driven toward the first opening, the float assembly being retained within the fluid passageway by a compression barrier for restricting movement of the float assembly when the piston moves in compression, and a rebound barrier for restricting movement of the float assembly when the piston moves in rebound, such that when the piston moves in compression, at least a portion of the float assembly bears against the compression barrier, and when the piston moves in rebound, at least a portion of the float assembly bears against the rebound barrier;a compression valve located between the float assembly and the second opening and adjacent to the compression barrier, such that when the piston moves in compression, the compression valve interacts with the float assembly to restrict the flow of fluid through the fluid passageway, the compression valve being adjustably movable with respect to the compression barrier in order to adjust the restriction of fluid flow through the fluid passageway when the piston is in compression; and
a rebound valve located between the float assembly and the first opening and adjacent to the rebound barrier, such that when the piston moves in rebound, the rebound valve interacts with the float assembly to restrict the flow of fluid through the fluid passageway, the rebound valve being adjustably moveable with respect to the rebound barrier in order to adjust the restriction of fluid flow through the fluid passageway when the piston is in rebound.


US Pat. No. 11,067,147

HYDRAULIC SHOCK-ABSORBER, PARTICULARLY FOR A VEHICLE SUSPENSION, WITH TWO COMPRESSION VALVES

SISTEMI SOSPENSIONI S.p.A...


1. A hydraulic shock-absorber comprisingan outer cylindrical tube extending along a longitudinal axis (z),
an inner cylindrical tube coaxial with the outer cylindrical tube and defining with the outer cylindrical tube an annular chamber filled in a top portion thereof with a compressible fluid,
a rod arranged coaxially with the outer cylindrical tube and the inner cylindrical tube and partially protruding from the top end of the outer cylindrical tube and of the inner cylindrical tube,
a main piston slidably mounted in the inner cylindrical tube along said longitudinal axis (z) and fixed to the rod, the main piston dividing an inner volume of the inner cylindrical tube into an extension chamber and a compression chamber, both containing a damping fluid,
a valve assembly mounted on a bottom wall of the inner cylindrical tube and comprising a first compression valve configured as a non-return valve allowing flow of the damping fluid only in a direction from the compression chamber to the annular chamber during a compression phase of the shock-absorber and a first intake valve configured as a non-return valve allowing the flow of the damping fluid only in the direction from the annular chamber to the compression chamber during an extension phase of the shock-absorber, wherein said first compression valve comprises at least one first closure element, that keeps at least one first through hole provided in the bottom wall of the inner cylindrical tube normally closed and to deform or displace elastically, from a given pressure value in the compression chamber, to allow flow of the damping fluid through said at least one first through hole from the compression chamber to the annular chamber,
a cup-shaped body mounted in the inner cylindrical tube, coaxially therewith, inside the compression chamber, and
an auxiliary piston rigidly connected to the main piston and slidably disposed in the cup-shaped body at least during a final section of the compression phase of the shock-absorber,
wherein the cup-shaped body comprises a lateral wall, separate from the inner cylindrical tube, and a bottom wall, said lateral wall and said bottom wall defining, together with the auxiliary piston, a working chamber wherein the damping fluid is compressed by the auxiliary piston when the auxiliary piston slides in the cup-shaped body towards the bottom wall,
wherein the cup-shaped body further comprises a second compression valve configured as a non-return valve allowing flow of the damping fluid only in the direction from the working chamber of the cup-shaped body towards a lower portion of the compression chamber comprised between the bottom wall of the cup-shaped body and the bottom wall of the inner cylindrical tube,
wherein said second compression valve comprises at least one second closure element that keeps at least one second through hole provided in the bottom wall of the cup-shaped body normally closed and to deform or displace elastically, from a given pressure value in the working chamber of the cup-shaped body, to allow the flow of the damping fluid through said at least one second through hole from the working chamber to said lower portion of the compression chamber, and
wherein said at least one second closure element is arranged outside the cup-shaped body, underneath the bottom wall of the cup-shaped body.

US Pat. No. 11,067,146

COMPOSITE VIBRATION-DAMPING BODY AND METAL-SPRING-EQUIPPED COMPOSITE VIBRATION-DAMPING BODY USING THE SAME

SUMITOMO RIKO COMPANY LIM...


1. A composite vibration-damping body comprising a first elastic body and a second elastic body overlapped with each other, whereinthe first elastic body is formed of a material having higher attenuation than that of the second elastic body,
the first elastic body includes a recessed part opening onto a surface of the first elastic body, and the recessed part forms a gap, and
a strain concentration part configured to be subjected to an increased strain during load input is set to a wall of the gap of the first elastic body, wherein
the recessed part opens onto an overlapped face of the first elastic body with the second elastic body,
the second elastic body includes a convex part inserted in the recessed part,
the convex part is partially in contact with an inner face of the recessed part, and
the gap is formed between the convex part and the inner face of the recessed part.

US Pat. No. 11,067,145

METHOD FOR PRODUCING LATEX COMPOSITION

ZEON CORPORATION, Tokyo ...


1. A method for producing a latex composition comprising a latex of a nitrile rubber containing an ?,?-ethylenically unsaturated nitrile monomer unit in a content of 8 to 60 wt %, and having an iodine value of 120 or less, an isothiazoline-based compound represented by the following general formula (1) and a benzisothiazoline-based compound represented by the following general formula (2), the content of the isothiazoline-based compound being 26 ppm by weight or more and the content of the benzisothiazoline-based compound being 26 ppm by weight or more, with respect to the nitrile rubber,wherein the method comprises an addition step of adding the isothiazoline-based compound and the benzisothiazoline-based compound being each in a state of an aqueous solution having a concentration of 0.1 to 40 wt % to the latex of the nitrile rubber under the condition that the latex of the nitrile rubber is in a state at a temperature of 50° C. or lower, and
the isothiazoline-based compound and the benzisothiazoline-based compound are added in such a way that the addition rate in the addition step is 2,000 ppm by weight/min or less in terms of the total addition rate of the isothiazoline-based compound and the benzisothiazoline-based compound,




wherein, in the general formula (1), R1 represents a hydrogen atom, or a substituted or unsubstituted organic group, and R2 and R3 each independently represent a hydrogen atom, a halogen atom, or a substituted or unsubstituted organic group;




wherein, in the general formula (2), R4 represents a hydrogen atom, or a substituted or unsubstituted organic group, R5 each independently represent a hydrogen atom, or a substituted or unsubstituted organic group, and “n” represents an integer of 0 to 4.

US Pat. No. 11,067,144

BRAKING SYSTEM FOR A HYDRAULIC MACHINE

POCLAIN HYDRAULICS INDUST...


1. A hydraulic apparatus comprising a casing having arranged therein a hydraulic machine, a shaft engaged in the casing and mounted to rotate relative to the casing by means of a bearing system having at least two rolling elements, a braking system having a plurality of brake disks configured to prevent the shaft rotating relative to the casing in selective manner, and a control system for controlling said braking disks, an irrigation system adapted to cool said hydraulic machine and said brake disks by means of a fluid, the irrigation system including an irrigation fluid inlet and an irrigation fluid outlet, wherein the irrigation fluid inlet and irrigation fluid outlet of the irrigation system define a fluid flow within the casing in which the braking system is downstream from the hydraulic machine,wherein the casing of the hydraulic machine is arranged in a first internal volume, and the braking system is arranged in a second internal volume defined between the two rolling elements of the bearing system, the irrigation fluid inlet of the irrigation system being arranged in the first internal volume of the casing and the irrigation fluid outlet of the irrigation system being arranged in the second internal volume of the casing, so that the flow of fluid of the irrigation system first passes through the hydraulic machine, and the same flow of fluid then continues through the braking system, the flow of fluid within the casing being subjected to a casing pressure, and
wherein the braking system further includes two opposing pistons arranged on opposite sides of brake disks and each piston is controlled by a brake fluid flow from separate pressurizing chambers, with one pressurizing chamber associated with each piston, wherein the brake fluid flow is connected to pressure feed ducts separate from the fluid flow associated with the irrigation fluid inlet and the irrigation fluid outlet, wherein the irrigation fluid flow and the brake fluid flow may occur simultaneously.

US Pat. No. 11,067,143

ADJUSTMENT STRUCTURE OF HYDRAULIC BRAKE SYSTEM

GIANT MANUFACTURING CO., ...


1. An adjustment structure of a hydraulic brake system, which is coordinated with a brake cable controlled by a brake lever, the adjustment structure comprising:a main body, comprising a fluid reservoir, an inner chamber and at least one fluid port, wherein the inner chamber comprises a cylinder channel and an opening part communicated with the cylinder channel;
an adjusting device screwed in the opening part of the main body, wherein the adjusting device is rotated so as to move reciprocatedly in the cylinder channel, and the adjusting device comprises an annular fluid guiding passage and a positioning groove, wherein the annular fluid guiding passage comprises:a guiding port; and
an annular groove connected to the guiding port, wherein the annular groove surrounds an outside of the adjusting device and is communicated with the cylinder channel and the fluid reservoir via the at least one fluid port; and

a piston connected to the brake cable and liquid-tightly disposed in the adjusting device, wherein the piston is limitedly moved in the cylinder channel and comprises a cable hole for receiving the brake cable, and the adjusting device is rotated to adjust the piston to be located at a normal operated position relative to the guiding port;
a positioning device disposed at the main body, the positioning device comprising an abutted ball coordinated with and movable in the positioning groove;
wherein when the adjusting device is located at a first position, the abutted ball is adjacent to one of two end walls of the positioning groove, and when the adjusting device is rotated to move to a second position along an axial direction of the cylinder channel, the positioning groove is moved along the axial direction of the cylinder channel relative to the abutted ball to allow the abutted ball to be adjacent to the other one of the two end walls of the positioning groove.

US Pat. No. 11,067,142

HYDRAULIC PISTON RESETTING TOOL FOR DISK BRAKE


1. A hydraulic piston resetting tool for disk brake, including a main body, a first pressing plate, a second pressing plate and a holding pole, wherein:one side of the main body is connected to the first pressing plate, the second pressing plate is connected to the other side of the main body, and the holding pole is connected to the main body;
the inside of the main body is formed with a first chamber, a second chamber and a communicating passage; the communicating passage is communicated with the first chamber and the second chamber; the second chamber is extended on the side of the main body adjacent to the second pressing plate; the main body is pivotally configured with a first cylinder barrel inside the second chamber; the inside of the first cylinder barrel is formed with a third chamber; the third chamber is communicated with the second chamber; the first cylinder barrel is pivotally configured with a second cylinder barrel inside the third chamber; the inside of the second cylinder barrel is formed with a fourth chamber; the fourth chamber is communicated with the third chamber; the second cylinder barrel is pivotally configured with a stopping piece inside the fourth chamber; one end of the stopping piece is formed with an extension rod in the axial direction; the extension rod goes through the second cylinder barrel and is connected to the second pressing plate;
the holding pole is connected to the main body; the holding pole is formed with a cylinder chamber, which is communicated with the first chamber; working fluid is filled between the cylinder chamber and the stopping piece.

US Pat. No. 11,067,141

DUST COLLECTOR FOR MULTI-DISK BRAKE

Parker-Hannifin Corporati...


1. A multi-disk brake assembly comprising:a static structure defining a plurality of slots;
a plurality of disks including stator disks that are supported by the static structure and are non-rotatable, and rotor disks that are interleaved with the stator disks and are rotatable, the plurality of disks being axially moveable between an engaged position and a disengaged position; and
a dust-collecting receptacle that is attachable to the static structure for securement during an operative state of the multi-disk brake assembly, wherein the dust-collecting receptacle is in fluid communication with the plurality of slots for receiving and trapping dust from the plurality of disks through the plurality of slots, and wherein the dust-collecting receptacle is detachable relative to the static structure during a non-operative state of the multi-disk brake assembly, wherein the plurality of slots are arranged radially inwardly relative to the plurality of disks.

US Pat. No. 11,067,140

METHOD FOR OPERATING AN ACTUATOR ARRANGEMENT FOR A CLUTCH OPERATING SYSTEM, AND ACTUATOR ARRANGEMENT


1. A method for operating an actuator arrangement for a clutch operating system comprising:providing an actuator arrangement comprising:a transmission comprising:an electric motor; and
a metal lead screw that converts a rotary motion into a linear motion;

a piston connected to the metal lead screw; and
an inductive sensor device;

energizing the electric motor to linearly displace the metal lead screw in an axial direction;
axially displacing the piston with the metal lead screw;
using the metal lead screw as a target for the inductive sensor device; and
using the inductive sensor device to determine an axial distance traveled by the piston.

US Pat. No. 11,067,139

VEHICLE TRANSMISSION SYSTEM

HONDA MOTOR CO., LTD, To...


1. A vehicle transmission system comprising:a transmission of which transmission is performed in accordance with an operation of a driver of a vehicle;
a clutch device that is disposed between a power transmission path between the transmission and an engine of the vehicle and is coupled or decoupled in accordance with an operation of a clutch actuator;
a clutch control unit that controls coupling/decoupling of the clutch device according to the clutch actuator; and
a shift operation detecting means that detects a shift operation of the driver on a shift operator,
wherein, when a hydraulic pressure is supplied from the clutch actuator to a slave cylinder, the clutch device moves to a connection side,
wherein, in an in-gear stop state in which the transmission is in an in-gear state, and the vehicle is in a stop state, the clutch actuator supplies a standby hydraulic pressure to the slave cylinder, and
wherein the clutch control unit sets the standby hydraulic pressure to a first setting value during non-detection in which the shift operation is not detected by the shift operation detecting means and sets the standby hydraulic pressure to a second setting value lower than the first setting value when the shift operation is detected by the shift operation detecting means.

US Pat. No. 11,067,138

DEVICE FOR PREVENTION OF TURBINE ROTATION

OKLAS TECHNOLOGIES LIMITE...


1. A device for preventing rotation of a turbine, comprisinginterconnected head and base, inside of which two shafts are mounted on bearing supports: the two shafts comprise an upper shaft and a lower shaft, connected to each other through a coupling configured to enable free running in the circumferential direction;
wherein
an overrunning clutch is installed in the head, providing torque transmission in a forward direction from the lower shaft to the upper one and preventing reverse rotation of the upper shaft;
the overrunning clutch is connected with the upper shaft through a coupling clutch having a movable part and a stationary part, wherein the movable part is mounted on the upper shaft for axial movement, and the stationary part is rigidly connected to the overrunning clutch;
coupling of the coupling clutch is provided by a spring, and disconnection is provided by a pusher mounted on the upper shaft for axial movement, and wherein on one side the pusher is connected to the movable part of the coupling clutch and on another side, different from the one side, the pusher is connected a bush sleeve having an inclined end surface rigidly mounted on the lower shaft.

US Pat. No. 11,067,137

SELECTABLE ONE-WAY CLUTCH

TOYOTA JIDOSHA KABUSHIKI ...


1. A selectable one-way clutch comprising:a pocket plate including a plurality of respective pockets provided along a circumferential direction on one surface of the pocket plate;
a notch plate that is rotatable with respect to the pocket plate, the notch plate including a plurality of notches provided along a circumferential direction on a surface of the notch plate facing the one surface;
struts that are plate-shaped and housed in the respective pockets; and
a selector plate disposed between the pocket plate and the notch plate, and configured to switch, by rotating coaxially with the pocket plate, between: a state in which the struts have risen toward the notch plate; and a state in which the struts are housed in the respective pockets, wherein
the notch plate includes flat portions between the notches that are adjacent in the circumferential direction,
each of the flat portions includes a first recess at a position where a top surface of the strut having risen toward the notch plate is brought into contact, and the first recess is formed at a center in a width direction of the flat portion of the notch plate, and
the first recess has a predetermined depth and the flat portion, and the flat portion contacts the top surface of the strut when the strut rises to be engaged to the notch plate.

US Pat. No. 11,067,136

ONE-WAY CLUTCH WITH REDUCED FRICTION


1. A one-way clutch comprising:an outer ring having an inner surface;
an inner ring having an outer surface with a plurality of ramps;
a plurality of rollers situated radially between the ramps and the inner surface; and
a plurality of positioning pins retained in the inner ring, each positioning pin configured to push a corresponding one of the rollers along a corresponding one of the ramps to preclude relative rotation between the inner ring and the outer ring in one direction, each positioning pin comprisinga retainer having an open end;
a ball retained by the retainer and partially exposed through the open end to contact the corresponding roller;
a plurality of microspheres within the retainer and configured to permit free rotation of the ball with respect to the retainer; and
a spring configured to push the retainer toward the corresponding roller to push the corresponding roller up the corresponding ramp into contact with the inner surface.


US Pat. No. 11,067,135

AUTOMATIC TRANSMISSION

Mazda Motor Corporation, ...


1. An automatic transmission comprising a friction engaging element, the friction engaging element including:a plurality of friction plates disposed inside a transmission case;
a piston configured to cause the plurality of friction plates to be engaged with each other;
at least one spring configured to bias the piston in an engaging direction to cause the plurality of friction plates to be engaged with each other; and
a hydraulic chamber for engagement to which hydraulic fluid to bias the piston in the engaging direction is supplied, and a hydraulic chamber for release disposed at an opposite side of the piston from the hydraulic chamber for engagement, the hydraulic chamber for release being supplied with hydraulic fluid to bias the piston in a releasing direction opposite from the engaging direction,
wherein the hydraulic chamber for engagement and the hydraulic chamber for release are each disposed at a different radial position from the at least one spring but axially overlap with the at least one spring,
wherein the hydraulic chamber for release is formed to have an outer diameter smaller than the hydraulic chamber for engagement, and
wherein a biasing force receiving member configured to receive a biasing force of the at least one spring is coupled to the piston and is disposed at an outer circumferential side of the hydraulic chamber for release.

US Pat. No. 11,067,134

FRICTIONAL PIECE


1. A friction part for a frictionally operating device, comprising:a friction lining carrier; and
a friction lining comprising a plurality of pentagonal friction lining pieces arranged on the friction lining carrier to form an annular friction surface;
wherein each of the plurality of pentagonal friction lining pieces comprises:a two-dimensional shape made up of a rectangle and an isosceles triangle; and
a base coinciding with a relatively long side of the rectangle;

wherein a radially inner row comprises a first portion of the plurality of pentagonal friction lining pieces with a same first shape, a same first size, and a same first tip directed radially outward; anda radially outer row comprises a second portion of the plurality of pentagonal friction lining pieces with a same second shape, a same second size, and a same second tip directed radially inward;

wherein the annular friction surface comprises:an inner edge;
an outer edge; and
a groove set formed between the plurality of pentagonal friction lining pieces, the groove set comprising:a first stem groove extending from the inner edge to a first branching point between the inner edge and the outer edge;
a first branch groove extending from the first branching point; and
a second branch groove extending from the first branching point;


wherein the first stem groove comprises a first groove width;the first branch groove or the second branch groove comprises a second groove width; and
a ratio of the first groove width to the second groove width is greater than 0.5 and less than 6;

wherein a first proportion of the annular friction surface comprising the groove set is on average substantially constant over a diameter of the annular friction surface in a radially inner region of the annular friction surface and in a radially outer region of the annular friction surface,
wherein the annular friction surface comprises a radially central region between the radially inner region and the radially outer region; anda second proportion of the annular friction surface comprising the groove set varies over the diameter in the radially central region;

wherein the radially inner region comprises 30-70% of a radial dimension R of the annular friction surface,the radially inner region extends at a minimum 50% of the radial dimension R; and
the radially central region extends at a maximum 85% of the radial dimension R.


US Pat. No. 11,067,133

FRICTIONAL PIECE


1. A friction part for a frictionally operating device, comprising:a friction lining carrier; and
a friction lining comprising a plurality of pentagonal friction lining pieces arranged on the friction lining carrier to form an annular friction surface;
wherein the pentagonal friction lining pieces are each arranged in a first row comprising same pentagonal friction lining pieces and a second row comprising same pentagonal friction lining pieces;
wherein the annular friction surface comprises:an inner edge;
an outer edge; and
a groove set formed between the plurality of pentagonal friction lining pieces, the groove set comprising:a first stem groove extending from the inner edge to a first branching point between the inner edge and the outer edge;
a first branch groove extending from the first branching point to a first connecting point between the inner edge and the outer edge;
a second branch groove extending from the first branching point to a second connecting point between the inner edge and the outer edge;
a third branch groove extending from a second branching point between the inner edge and the outer edge to the second connecting point; and
a second stem groove extending from the second connecting point to the outer edge;


wherein the first stem groove, the first branch groove, and the second branch groove are arranged in a y shape;
wherein the second stem groove, the second branch groove, and the third branch groove are arranged in an inverted y shape;
wherein the first stem groove or the second stem groove comprises a first groove width;the first branch groove, the second branch groove, or the third branch groove comprises a second groove width; and
a ratio of the first groove width to the second groove width is greater than 0.5 and less than 6;

wherein the annular friction surface comprises a radially central region between the radially inner region and the radially outer region; anda second proportion of the annular friction surface comprising the groove set varies over the diameter in the radially central region;

wherein the radially inner region comprises 30-70% of a radial dimension R of the annular friction surface,the radially inner region extends at a minimum 50% of the radial dimension R; and
the radially central region extends at a maximum 85% of the radial dimension R.


US Pat. No. 11,067,132

DRIVING TOOL WITH UNIVERSAL ROTATING STRUCTURE

Hong Ann Tool Industries ...


1. A driving tool with universal rotating structure comprising:a first drive joint member defining a compartment and at least one slot, wherein the compartment extends from a first end to a second end along a first axis, wherein the at least one slot extends from a first end to a second end radially to the first axis, wherein the first end of the at least one slot includes a first open end in communication with the compartment, wherein the second end of the at least one slot includes a second open end extending through an outer periphery of the first drive joint member, wherein the at least one slot includes at least one retaining member movably disposed therein, wherein the outer periphery of the first drive joint member includes an enclosing ring disposed thereon, and wherein the enclosing ring is elastic and includes an inner periphery abutting against a side of the at least one retaining member; and
a second drive joint member including a head rotatably coupled to the first drive joint member, wherein the head is disposed in the compartment, wherein the head extends from a first end to a second end concavely along a second axis and includes a first, second, and third section sequentially along the second axis, wherein the head has a width direction which extends radially to the second axis and the first and third sections have widths smaller than a width of the second section,
wherein the enclosing ring extends from a first end to a second end circumferentially, wherein the enclosing ring surrounds the outer periphery of the first drive joint member, and wherein the enclosing ring includes a gap between its first and second ends.

US Pat. No. 11,067,131

ANTI-ROTATION ASSEMBLY AND BEARING HOUSING ASSEMBLY INCLUDING THE SAME

Borg Warner Inc., Auburn...


1. A turbocharger comprising:a turbine housing defining a turbine housing interior;
a turbine wheel disposed in said turbine housing interior;
a compressor housing defining a compressor housing interior;
a compressor wheel disposed in said compressor housing interior;
a shaft disposed in said turbine housing interior and said compressor housing interior, with said shaft extending along a longitudinal axis and coupled to and rotatable with said turbine wheel and said compressor wheel, and
a bearing housing assembly comprising,a bearing housing extending along said longitudinal axis, with said bearing housing having an interior surface defining a bearing housing interior, and
an anti-rotation assembly comprising,a bearing assembly disposed in said bearing housing interior and disposed about said shaft, said bearing assembly supporting rotation of said shaft,
an anti-rotation spacer disposed in said bearing housing interior and disposed about said shaft, and
a retaining ring disposed about said shaft and coupled to said anti-rotation spacer to axially retain said anti-rotation spacer in said bearing housing interior;


wherein said anti-rotation spacer has an engagement member engageable with said retaining ring and configured to limit rotation of said retaining ring relative to said anti-rotation spacer,
wherein said engagement member has an engagement surface, and wherein said retaining ring has a retaining ring protruding portion extending axially with respect to said longitudinal axis toward and engageable with said engagement surface of said anti-rotation spacer to limit rotation of said retaining ring relative to said anti-rotation spacer.

US Pat. No. 11,067,130

WHEEL BEARING SEALING DEVICE

ILJIN GLOBAL CO., LTD, S...


18. A wheel bearing sealing device, comprising:a first insert body comprising an annular first frame and a first sealing part coupled to the first frame; and
a second insert body comprising an annular second frame having a diameter that is smaller than that of the first frame and a second sealing part coupled to the second frame, wherein
the second insert body rotates relative to the first insert body,
the second sealing part comprises a first surface facing the first sealing part and spaced apart from the second frame in a first axial direction; and a first baffle protruding from the second sealing part toward the first sealing part,
a first cavity is formed in a gap between the first sealing part and the second sealing part by the first sealing part and the first baffle, and

at least a portion of a first cavity passage connected to the first cavity is formed in the gap between the first sealing part and the second sealing part by the first sealing part, the first baffle, and the first surface,the first sealing part has a plurality of grooves on the surface facing the first cavity, and
the plurality of grooves have an annular shape based on the rotation axis and are spaced apart from each other.

US Pat. No. 11,067,129

ROLLING BEARING FOR REFRIGERANT COMPRESSOR

Aktiebolaget SKF, Gothen...


1. A rolling bearing comprising:an inner raceway,
an outer raceway, and
a plurality of rolling elements arranged therebetween, wherein the rolling bearing is media-lubricated or oil-free lubricated, wherein
the lubricant forms an elasto-hydrodynamic lubricant film between the rolling elements and the raceways, wherein
at first use of the rolling bearing, at least one surface of the rolling bearing is coated with a protective fluid, and
wherein the protective fluid is a polar substrate with polar heads and non-polar tails, and wherein the polar heads are adapted to bond to the bearing surface and the non-polar tails prevent elements to come into contact with the bearing surface.

US Pat. No. 11,067,128

ROLLING BEARING, NOTABLY LARGE-DIAMETER ROLLING BEARING

Aktiebolaget SKF, Gothen...


1. A rolling bearing comprising:an inner ring,
an outer ring, at least the inner ring or the outer ring being split into a plurality of successive circumferential ring segments,
at least one alignment member circumferentially interposed between each pair of facing ends of the successive ring segments of the split-ring, each pair of facing ends comprising a first facing end and a second facing end, the alignment member being secured onto one of the first facing ends and protruding into a recess formed onto one of the second facing ends to align the pair of facing ends in radial and axial directions,
wherein the at least one alignment member comprises a first alignment member extending axially and a second alignment member extending radially that are circumferentially interposed between the pair of facing ends of the successive ring segments of the split-ring.

US Pat. No. 11,067,127

BEARING WHOSE LOAD SUPPORTING POSITION CAN BE CHANGED

HANWHA POWERSYSTEMS CO., ...


7. A bearing capable of changing a load supporting position, the bearing comprising:a housing comprising:an inner circumferential surface configured to support a shaft; and
an outer circumferential surface;

one or more support members provided on the inner circumferential surface;
a plurality of pin holes provided along the outer circumferential surface of the housing;
a rotation preventing pin coupled to a first pin hole of the plurality of pin holes and configured to prevent rotation of the housing by protruding from the housing and engaging with a fixing member,
the inner circumferential surface and the outer circumferential surface are concentric;
an inner surface of each of the plurality of pin holes comprises hole threads;
an outer surface of the rotation preventing pin comprises pin threads corresponding to the hole threads so that the rotation preventing pin can be coupled to the first pin hole of the plurality of pin holes; and
a portion of the outer surface of the rotation preventing pin that is configured to engage with the fixing member is unthreaded.

US Pat. No. 11,067,126

CIRCULATOR STRUCTURE AND SLIDER DEVICE USING THE SAME

TOYO AUTOMATION CO., LTD....


1. A circulator structure, which is suitable to be disposed on a slider, so as to form an oil supply line with said slider, wherein said circulator structure comprises:a main body having a first side surface, a second side surface opposite to said first side surface and a through hole, wherein said first side surface is configured to be connected to said slider, and said through hole extends from said first side surface to said second side surface;
a Y shaped groove recessed into said first side surface, wherein said Y shaped groove comprises a first oil-guiding groove, a second oil-guiding groove and an oil distribution groove, wherein said first oil-guiding groove and said second oil-guiding groove are respectively located at two opposite sides of said through hole, and said oil distribution groove is located below said through hole, and a lower guiding end of said first oil-guiding groove and a lower guiding end of said second oil-guiding groove are respectively connected to said oil distribution groove, and said oil distribution groove has an upper end distribution opening and a lower end distribution opening, said upper end distribution opening is located on an inner wall of said through hole; and
a pair of return channels recessed in said first side surface and respectively located on two opposite sides of said first side surface, wherein said return channels are connected to said lower end distribution opening.

US Pat. No. 11,067,125

LUBRICATING TUBE AND SLIDE RAIL DEVICE HAVING SAME

TOYO AUTOMATION CO., LTD....


1. A lubricating tube comprising:a tubular lubricant body made of a porous material and defining an axis, said tubular lubricant body including an inner surrounding surface surrounding the axis, and an outer surrounding surface surrounding said inner surrounding surface;
said inner surrounding surface having a non-circular cross-section perpendicular to the axis, a plurality of angularly spaced-apart inner lubricant-storing recesses disposed around the axis and extending axially, and a plurality of guide surface portions each of which is interconnected between two adjacent ones of said inner lubricant-storing recesses, said inner lubricant-storing recesses and said guide surface portions constituting said inner surrounding surface and cooperatively defining a first roller passage hole;
said inner lubricant-storing recesses being indented from said guide surface portions toward said outer surrounding surface;
wherein said outer surrounding surface has a non-circular cross-section perpendicular to the axial line,a plurality of angularly spaced-apart protrusion portions disposed around the axial line and extending axially, and
a plurality of arcuate surface portions each of which is interconnected between two adjacent ones of said protrusion portions;

wherein said protrusion portions protrude outwardly from said arcuate surface portions, each of said arcuate surface portions and two adjacent ones of said protrusion portions cooperatively define an outer lubricant-storing recess; and
wherein said tubular lubricant body further includes a lubricant supply hole extending through said inner and outer surrounding surfaces, and communicating with said first roller passage hole, said lubricant supply hole extending from one of said protrusion portions to one of said inner lubricant-storing recesses that is radially opposite to said one of said protrusion portions.

US Pat. No. 11,067,124

PLANAR ROTARY AIR BEARING STAGE

ALIO Industries, Inc., A...


1. A rotary stage comprising:a base; and
a housing comprising:at least one radial air bearing that maintains stability of a rotary shaft in an x direction and a y direction in an x-y plane, wherein the rotary shaft comprises a rotary air bearing that is directly above the base; and
an air bushing comprising:a first port that provides a first pressure to a first aperture of the rotary shaft; and
a second port that provides a second pressure to a second aperture of the rotary shaft.



US Pat. No. 11,067,123

LINEAR MOTION GUIDE UNIT

NIPPON THOMPSON CO., LTD....


1. A linear motion guide unit comprising:an elongated guide rail having a first raceway groove formed along each of opposite sides extending in a longitudinal direction; and a slider which slides on the guide rail in the longitudinal direction,
wherein the slider comprises:
a carriage which has a second raceway groove extending to face the first raceway groove of the guide rail and an insertion hole extending along the second raceway groove;
a sleeve which is inserted into the insertion hole so as to form a return passage;
a pair of end caps which are attached to opposite end surfaces of the carriage and each of which has a turnaround passage communicating with the return passage and a load-carrying race formed between the first raceway groove and the second raceway groove; and
a plurality of rolling elements which roll through a circulation passage formed by the load-carrying race, the return passage, and the paired turnaround passages, and
wherein the sleeve is not porous and formed of a thermoplastic resin selected from a group consisting of polyimide resin, polyamide-imide resin, ABS resin, polyethylene terephthalate (PET) resin, polyamide resin, polyacetal resin, polytetrafluoroethlylene (PTFE) resin, polyphenylenesulfide resin, and polyether ether ketone (PEEK) resin, and has a space serving as a grease pool.

US Pat. No. 11,067,122

ROLLING BODY CAGE FOR A TELESCOPIC RAIL OR A LINEAR GUIDE

ACCURIDE INTERNATIONAL GM...


1. A rolling body cage (1) for a linear guide or telescopic rail (10) having rail elements (11, 14) which are displaceable relative to each other, the rolling body cage (1) is characterized in that:at least one bottom portion (5) extending in a longitudinal direction of the rolling body cage (1);
side wall portions (2, 2?) which are arranged parallel and which extend on mutually opposite sides of the bottom portion (5) substantially perpendicularly therefrom and in which there are provided rolling body holding recesses (3) for receiving and holding rolling bodies (7) between raceways of rail elements (11, 14);
at least at a first end of the rolling body cage (1), a connecting bridge (4, 4?) which extends between the side wall portions (2, 2?) substantially perpendicularly thereto, wherein the bottom portion (5), the side wall portions (2, 2?) and the connecting bridge (4, 4?) are formed from a first plastic; and
a damping element (6, 6?) formed from a second plastic surrounding at least two mutually opposite end faces (16, 16?, 17, 17?) of the connecting bridge (4, 4?) wherein the bottom portion (5), the side wall portions (2, 2?), the connecting bridge (4, 4?) and the damping element (6, 6?) are a one piece multi-component injection moulded unit, wherein the second plastic is softer than the first plastic and has a Shore hardness in a range of 40 Shore-A and 90 Shore-A.

US Pat. No. 11,067,121

MULTI-FILM OIL DAMPER WITH TAPERED DAMPER RINGS


10. A method of distributing oil between coaxial damper rings of a multi-film oil damper, the method comprising:sealing an oil damper cavity with a radially moveable closure ring
injecting pressurized oil into the oil damper cavity via an oil inlet;
providing a first damper ring and a second damper ring within the oil damper cavity, the first damper ring and the second damper ring being coaxially nested, one of the first damper ring and the second damper ring having a spherical surface, the first damper ring and the second damper ring having axially adjacent end surfaces that are radially spaced-apart so as to define an axially symmetrical wedge gap, wherein a maximum radial thickness (T) of the first damper ring and of the second damper ring is provided at a middle portion of the first damper ring and the second damper ring; and
separating the first damper ring and the second damper ring by applying oil pressure on the spaced apart adjacent axial end surfaces.

US Pat. No. 11,067,120

ROLLING BEARING, NOTABLY LARGE-DIAMETER ROLLING BEARING

Aktiebolaget SKF, Gothen...


1. A rolling bearing comprising:an inner ring and an outer ring arranged concentrically about a rotation axis running in an axial direction,
at least first and second axial bearings each axially disposed between the inner and outer rings and each having at least one row of rolling elements, the first and second axial bearings being spaced apart from each other in the axial direction, and
a single radial bearing radially disposed between the inner and outer rings and having at least one row of rolling elements, wherein
the radial bearing is disposed between an outer raceway located on the inner ring and an inner raceway located on the outer ring, and
wherein the radial bearing is axially located between the first and second axial bearings.

US Pat. No. 11,067,119

WHEEL HUB AND SLINGER ASSEMBLY, WHEEL BEARING ASSEMBLY, AND METHOD OF PRODUCING WHEEL HUB AND SLINGER ASSEMBLY

ILJIN GLOBAL CO., LTD, S...


1. A wheel bearing assembly comprising:a wheel hub comprising a base surface, a tolerance compensation portion which extends from the base surface and is formed to be concave in an axially outward direction, and a flange surface extending from the tolerance compensation portion in a radially outward direction;
at least one inner ring mounted to the wheel hub;
an outer ring disposed to be spaced apart from an outer peripheral surface of the wheel hub in the radially outward direction;
a plurality of rolling elements interposed between the inner ring and the outer ring and between the wheel hub and the outer ring; and
a slinger comprising a mounting portion having an axially inward end portion and a first inner peripheral surface and configured to be press-fitted to the base surface, a bent portion having a second inner peripheral surface spaced apart from the tolerance compensation portion and extending from the mounting portion in a curved surface shape, and an extending portion extending from the bent portion in the radially outward direction and having a contact surface in contact with the flange surface,
wherein a stopper is formed on the wheel hub so as to protrude from an axially inward end portion of the base surface in the radially outward direction, the stopper having an axially outward end portion surface and a radially outward end portion surface, and
wherein the slinger is mounted to the wheel hub such that the mounting portion is positioned on the base surface,
wherein the tolerance compensation portion is formed to be concave from the flange surface in the radially outward direction,
wherein the slinger is mounted to the wheel hub such that the axially inward end portion of the mounting portion is brought into contact with the axially outward end portion surface of the stopper,
wherein an axial length between the contact surface of the extending portion and the axially inward end portion of the mounting portion before the slinger is mounted to the wheel hub is equal or longer than an axial length between the flange surface of the wheel hub and the axially outward end portion surface of the stopper.

US Pat. No. 11,067,118

LINEAR BI-STABLE COMPLIANT CRANK-SLIDER-MECHANISM

University of South Flori...


1. A method of fabricating a substantially linear, bi-stable, compliant crank-slider mechanism, the method comprising the steps of:providing a crank-slider mechanism model including a first segment joined to a second segment via a revolute joint, the second segment including a buckling segment spanning between a first buckling pivot and a second buckling pivot, such that the second segment is rotatable about the buckling segment;
defining a maximum desired linear deflection between a first stable position of the crank-slider mechanism model and a second stable position of the crank-slider mechanism model;
defining an initial angle of the first segment with respect to an x-axis and an initial angle of the second segment with respect to the x-axis based on the maximum desired linear deflection;
defining a maximum vertical deflection of the crank-slider mechanism model based on the initial angle of the first segment;
calculating a non-dimensional value representing a maximum height of the crank-slider mechanism, the non-dimensional value being a ratio of the maximum vertical deflection to the maximum desired linear deflection;
defining, from a plurality of given stiffness coefficient ratios that are plotted based on a relationship between the non-dimensional value representing the maximum height and the defined initial angle, a selected stiffness coefficient ratio from the plurality of given stiffness coefficient ratios of the crank-slider mechanism model;
calculating a maximum actuation force to transition the crank-slider mechanism model between the first stable position and the second stable position, the maximum actuation force based on the defined initial angles of the first and second segments and the selected stiffness coefficient ratio; and
fabricating a physical crank-slider mechanism based on the crank-slider mechanism model.

US Pat. No. 11,067,117

BALL-SOCKET GROMMET

NIFCO AMERICA CORP., Can...


1. A grommet adapted to attach a stud pin with a head portion to a bracket, comprising:a body member adapted to contact the bracket, and having a through-hole at a center thereof;
a first supporting member adapted to support one side of the head portion, includinga supporting portion arranged on one side of the body member, and having an inner surface facing the through-hole of the body member and adapted to contact the one side of the head portion, and
a plurality of connecting portions extending from a periphery of the supporting portion to an inner periphery of the body member and connecting the first supporting member to the body member, the plurality of connecting portions being spaced apart from each other; and

a plurality of second supporting members adapted to support another side of the head portion, each second supporting member includinga first connecting piece extending from the inner periphery of the body member between two adjacent connecting portions to another side of the body member opposite to the one side of the body member in an axial direction of the body member, and
a second connecting piece extending from the first connecting piece to the one side of the body member through the through-hole and having a supporting piece at an end portion thereof, the supporting piece being arranged between the body member and the supporting portion of the first supporting member in the axial direction and adapted to contact the another side of the head portion,

wherein each of the plurality of second supporting members further includes a reinforcing rib protruding outwardly from an outer face of the second connecting piece, and
the body member further includes a plurality of grooves at portions corresponding to the reinforcing ribs, respectively, so that the plurality of grooves receives the plurality of reinforcing ribs when the plurality of second connecting pieces deforms outwardly due to an insertion of the head portion through the through-hole from the another side of the body member.

US Pat. No. 11,067,116

LOW TORQUE BALL SOCKET ASSEMBLY

Federal-Mogul Motorparts ...


1. A ball socket assembly for a vehicle, comprising:a housing configured for attachment with a first component of a four wheel drive system of a vehicle, said housing including at least one open end and having an inner surface that surrounds an inner bore which extends along a central axis;
a ball stud configured for attachment with a second component of the four wheel drive system, said ball stud having a ball portion and a shank portion;
said ball portion of said ball stud being disposed in said inner bore of said housing and having an outer diameter which is in a clearance fit relationship with said inner surface of said housing;
said shank portion of said ball stud extending out of said inner bore through said at least one open end of said housing; and
said ball portion being out of contact with any bearings on opposite axial sides of said ball portion such that said ball stud is able to move along said central axis relative to said housing and to rotate about said central axis.

US Pat. No. 11,067,115

SPHERICAL BALL JOINT

SKF Aerospace France S.A....


7. A spherical ball joint having an axis of rotation, the spherical ball joint comprising:an inner ring, the inner ring having a central bore defining a cylindrical bore portion, a portion of a radially outer surface of the inner ring forming an inner ring truncated spherical contact surface, the inner ring having a first inner ring axial end which forms a deformation portion,
a cylindrical sleeve located in the cylindrical bore portion, the cylindrical sleeve being configured to be mounted around a shaft, the cylindrical sleeve being made of a material different from that of the inner ring, the cylindrical sleeve having first and second cylindrical sleeve axial ends, the deformation portion contacting the first cylindrical sleeve axial end to prevent the first cylindrical sleeve axial end from moving axially past the deformation portion, a contact area between the deformation portion and the cylindrical sleeve being askew to the axis of rotation, an outer ring, a portion of a radially inner surface of the outer ring forming an outer ring truncated spherical contact surface, the outer ring rotates about the axis of rotation relative to the inner ring by the outer ring truncated spherical contact surface sliding on the inner ring truncated spherical contact surface,
wherein the inner ring has a second inner ring axial end which axially protrudes outside the outer ring, and,
wherein the spherical ball joint further comprises an annular nut fastened to the inner ring to form an axial stop for the cylindrical sleeve.

US Pat. No. 11,067,114

COMPOSITE END CONNECTIONS

CROMPTON TECHNOLOGY GROUP...


1. An end connection comprising:the end connection comprising:
a composite structural component made of a polymer matrix composite material and comprising an end portion, the end portion comprising an internal surface comprising a plurality of ridges and grooves defining a first engagement surface along an axial direction and an outer layer of circumferential fibre reinforcement;
a metal interface component comprising an outer surface comprising a plurality of ridges and grooves defining a second engagement surface along the axial direction and an inner surface defining a mounting surface for attachment of an end fitting;
wherein the metal interface component is engaged with the internal surface of the composite structural component by mating of the first and second engagement surfaces; and
an outer annular component fitted around the outer layer of circumferential fibre reinforcement of the end portion in axial alignment with the mating of the first and second engagement surfaces;
wherein the outer annular component forms an interference fit with the end portion so as to preload the end connection with compressive radial forces.

US Pat. No. 11,067,113

SCREW INSERT AND TOOL FOR USE WITH SCREW INSERT

Cerro Wire LLC, Hartsell...


1. A screw insert comprising:a body configured to engage a threaded fastener and transmit a torque to the threaded fastener;
a separable head connected to the body;
a neck extending between body and the separable head, wherein the neck breaks causing the separable head to separate from the body in response to a torque applied to the separable head exceeding a predetermined value,
wherein the neck has a cross-sectional dimension that is smaller than a smallest cross-sectional dimension of the body and a smallest cross-sectional dimension of the head, the neck having a circular cross-sectional shape tapering inwardly from the head to the body, the taper being formed at an angle of about 3 degrees to about 10 degrees, such that the neck has a smallest diameter at a juncture with the body, and wherein a distance across the points of the body is no more than a distance across the flats of the head.

US Pat. No. 11,067,112

PIN AND CARRIER LOCKING ASSEMBLY

HAMILTON SUNSTRAND CORPOR...


1. An assembly for locking a pin and carrier in position relative to each other, comprising:said carrier having first and second opposing arms, each comprising a bore therein; and
said pin having a longitudinal axis (P), wherein the axial ends of said pin are positioned within said opposing bores of the carrier; and
a hollow bearing provided around and coaxially with said pin and between said first and second arms; said bearing being positioned so as to not contact the first arm of the carrier but to contact the second arm of the carrier; and
the assembly further comprising:
a washer positioned between said bearing and the first arm of the carrier; and wherein said washer is positioned so that a first section of the washer makes a first contact area with the first arm of the carrier, and wherein the washer is bent at a first angle (X) away from said first contact area so as to extend towards and make a second contact area with the bearing.

US Pat. No. 11,067,111

FURNITURE CONNECTION BRACKET

STAFAST PRODUCTS, INC., ...


1. A female connection bracket and a male bracket, comprising:said female connection bracket includes:
a first end portion and a second end portion;
an opening in said first end portion forming a catch;
a central body extending from said first end portion to said second end portion;
a first guide and a second guide;
said first guide integral with said central body and being folded to form an open channel;
said second guide integral with said central body and being folded to form said open channel;
said first guide includes a first wing portion residing at said second end portion of said female connection bracket;
said second guide includes a second wing portion residing at said second end portion of said female connection bracket;
a first spacer integral with said central body, and said first spacer includes a first passageway therethrough;
a second spacer integral with said central body, and said second spacer includes a second passageway therethrough;
said male bracket includes:
a first end portion and a second end portion;
said first end portion of said male bracket includes a pivot opening and a latch opening;
a clip, said clip includes a latch portion and a gripping portion, said gripping portion of said clip includes a barb residing in said pivot opening of said first end portion of said male bracket rotatably affixing said clip to said first end portion of said male bracket, said latch portion of said clip residing in said latch opening of said first end portion of said male bracket;
said male bracket resides in said open channel formed by said first and second guides of said female connection bracket; and,
said latch portion of said clip of said first end portion of said male bracket interengaging said catch of said female connection bracket retaining and securing said male bracket with respect to said female connection bracket.

US Pat. No. 11,067,110

DEVICE COUPLING FOR A MOTOR

Beckman Coulter, Inc., B...


1. A device coupling for a motor, the device coupling comprising:a female portion associated with the motor, the female portion having a recess;
a lead screw including a shaft having a tapered surface formed at one end of the shaft, the tapered surface being insertable into the recess of the female portion; and
a screw configured to pull the shaft into the recess of the female portion and join the shaft to the female portion such that the shaft is prevented from rotating with respect to the female portion due to friction between the shaft and the female portion, the screw being coaxially aligned with a central axis of the shaft of the lead screw,
wherein the shaft includes a threaded hole at the one end of the shaft.

US Pat. No. 11,067,109

ENGAGEMENT STRUCTURE

NIHON PLAST CO., LTD., F...


1. An engagement structure for engaging a first part with a second part comprising:a receive portion provided on the first part; and
an insertion portion provided on the second part to be inserted into the receive portion and then fixed with the receive portion, wherein
the insertion portion includes:
an insertion main body protruded in an insertion direction toward the receive portion, and
a plurality of protrusions protruded from a side face of the insertion main body to extend along a protrusion direction of the insertion main body and having elasticity to be deformable,
wherein each of the plurality of protrusions includes:an inclined portion positioned at a free end side of the insertion main body and inclined with respect to the insertion direction of the insertion main body,
wherein each inclined portion defines:
a first inclined face that forms an angle with respect to the side face of the insertion main body, the first inclined face is formed on a radial outer surface of each inclined portion,
a portion of the first inclined face located at an insertion direction most edge of the inclined portion, the portion of the first inclined face connecting the first inclined portion to the side face of the insertion main body and the portion of the first inclined face being inclined with respect to the insertion direction of the insertion main body, and
a second inclined face that is oriented orthogonal to the first inclined face, the second inclined face being inclined with respect to the insertion direction of the insertion main body; and

the receive portion includes:
an opening provided with an opening main portion into which the insertion main body is inserted and a plurality of cutouts into which the protrusions are inserted when the insertion main body is inserted into the opening main portion, and
a plurality of overhangs that are disposed adjacently to the opening main portion so as to contact with the protrusions being inserted into the cutouts in a direction perpendicular to the insertion direction of the protrusions and prevent, on a back surface of the receive portion, the protrusions from being pulled out due to elastic restorations of the protrusions that have passed through the cutouts.

US Pat. No. 11,067,108

ADJUSTABLE MONUMENT HARD POINT MOUNTING DEVICE

The Boeing Company, Chic...


1. An adjustable mounting assembly, that comprises:a saddle bracket that comprises a pocket that comprises a threaded channel;
an adjustable fitting that comprises a threaded exterior and a center through-hole, and is configured:at a first end to fit within the threaded channel in the pocket;
to be accessed through the pocket;
at a second end to contact a structural mounting point;
to rotate within the threaded channel in the pocket and bridge a gap between the saddle bracket and the structural mounting point; and

a bolt configured to fit through the center through-hole in the adjustable fitting, wherein the adjustable fitting and bolt couple the saddle bracket to the structural mounting point.

US Pat. No. 11,067,107

FIXATION DEVICE FOR SECURING A LINEAR ELEMENT TO A WORKPIECE

EMRGE, LLC, Atlanta, GA ...


1. A method of at least securing a linear element to first and second fixation devices, comprising:having the first and second fixation devices in a first configuration, wherein each of the first and second fixation devices comprises a fixation component connected to a contact component, and in the first configuration the fixation components are positioned between the contact components; and
then providing a second configuration, comprising:securing first and second portions of the linear element respectively to the fixation components,
arranging the linear element so that third and fourth portions of the linear element respectively extend from the first and second portions of the linear element, and
separating the first and second portions of the linear element from one another, wherein the linear element is a suture strand.


US Pat. No. 11,067,106

SYSTEM FOR IMPLEMENTING REDUNDANCY IN HYDRAULIC CIRCUITS AND ACTUATING MULTI-CYCLE HYDRAULIC TOOLS

SCHLUMBERGER TECHNOLOGY C...


1. A system of operating a downhole hydraulic tool, comprising:a hydraulic tool having at least one hydraulic port for receiving hydraulic fluid to control the movement of a piston inside the hydraulic tool;
a plurality of hydraulic reservoirs connected in parallel and each in fluid communication with the hydraulic port of the hydraulic tool, each of the hydraulic reservoirs being operatively connected to a corresponding hydraulic actuator that controls the release of hydraulic fluid from the hydraulic reservoirs, each of the hydraulic reservoirs having a piston therein; and
a plurality of dump containers each in fluid communication with the hydraulic port of the hydraulic tool, each of the dump containers being operatively connected to a corresponding dump actuator that controls the dump containers for receiving hydraulic fluid.

US Pat. No. 11,067,105

FLANGE MOUNT CYLINDER SENSOR

Caterpillar Inc., Peoria...


1. A sensor assembly for use with a fluid cylinder group having a piston and rod assembly, and a cylinder group including an endcap member with an endcap external axial face having an axially-extending sensor port therethrough, the sensor assembly comprising:a sensor including a sensor body and a pressure pipe, the sensor body comprising a first sensor axial face and a second sensor axial face, the pressure pipe extending axially from the first sensor axial face,
an annular face seal adapted to be disposed between the first sensor axial face and the endcap external axial face, and
a sensor retention assembly comprising a plurality of fasteners and a retainer body, the retainer body comprising a retainer distal face, a plurality of through holes and an internal chamber with a radially-extending flange, the radially-extending flange extending into the internal chamber and the internal chamber opening to the retainer distal face, the sensor body being disposed within the internal chamber with at least a portion of the second sensor axial face disposed adjacent the radially-extending flange,
at least a portion of the first sensor axial face being adapted to be disposed adjacent the endcap external axial face with the pressure pipe extending from the sensor body through the axially-extending sensor port, the retainer distal face being adapted to be disposed adjacent the endcap external axial face, the plurality of fasteners being adapted to extend through the plurality of through holes of the retainer body to secure the sensor assembly to the endcap external axial face with the annular face seal disposed between the first sensor axial face and the endcap external axial face.

US Pat. No. 11,067,104

INTEGRATED CYLINDER PISTON AND BEARING AS A HYDRAULIC CUSHION

Caterpillar Inc., Peoria...


1. An integrated piston and bearing, comprising:a piston having an outer peripheral surface and a first end and a second end;
a bearing arranged on the outer peripheral surface and having a surface contour including a setback region with a first thickness and a full region with a second thickness, thicker than the first thickness, and a snubbing chamfer transitioning between the first and second thicknesses, wherein the setback region comprises a first edge substantially aligned with the first end of the piston and a surface that extends generally away from the first edge, along the outer wall of the piston, and to the snubbing chamfer arranged at a point along the length of the bearing.

US Pat. No. 11,067,103

HYDRAULIC SYSTEM FOR WORKING MACHINE

KUBOTA CORPORATION, Osak...


1. A hydraulic system for a working machine, comprising:a hydraulic device to change a flow rate and/or a pressure of an operation fluid applied to a hydraulic actuator, the hydraulic device including:a first hydraulic receiver to which a pilot fluid is applied;
a second hydraulic receiver to which the pilot fluid is applied;
a movable portion to be moved by the pilot fluid applied to any one of the first hydraulic receiver and the second hydraulic receiver;

a differential pressure regulator to supply the pilot fluid to the first hydraulic receiver and the second hydraulic receiver, the differential pressure regulator being configured to regulate a differential pressure between a first pressure that is a pressure of the pilot fluid applied to the first hydraulic receiver and a second pressure that is a pressure of the pilot fluid applied to the second hydraulic receiver; and
an operation member,
wherein the differential pressure regulator includes:a first fluid tube connected to the first hydraulic receiver;
a second fluid tube connected to the second hydraulic receiver;
a first proportional valve disposed in the first fluid tube, the first proportional valve being configured to regulate the first pressure; and
a second proportional valve disposed in the second fluid tube, the second proportional valve being configured to regulate the second pressure,

wherein when an operation extent of the operation member is in a dead zone between zero at a neutral position of the operation member and a predetermined extent greater than zero upon operating the operation member from the neutral position thereof towards a predetermined direction, the first pressure is substantially the same as the second pressure, and when the operation extent of the operation member is beyond the dead zone upon further operating the operation member towards the predetermined direction, the first pressure increases in accordance with the operation extent and the second pressure decreases.

US Pat. No. 11,067,102

DIGITAL PROPORTIONAL PRESSURE CONTROLLER

MAC Valves, Inc., Wixom,...


1. A valve assembly, comprising:a housing having a fluid inlet, a fluid outlet, and an exhaust;
a plurality of fill valves that each communicate with the fluid inlet and the fluid outlet;
a plurality of dump valves that each communicate with the fill valves, the exhaust, and the fluid outlet;
a pressure sensor configured to generate a signal indicative of a fluid pressure within the housing; and
a controller that is configured, based on a command signal received by the controller that includes a desired pressure to be output from the fluid outlet in comparison to the signal indicative of the fluid pressure, to selectively open and close each of the fill valves and each of the dump valves,
wherein to pressurize and output a fluid from the valve assembly at the desired pressure, the controller is configured to selectively open and close the plurality of fill valves and the plurality of dump valves until the desired pressure is reached, and
wherein when the plurality of dump valves are closed, fluid is permitted to flow from the fluid outlet through each of the plurality of dump values to the exhaust.

US Pat. No. 11,067,101

HYDRAULIC CONTROL VALVE CONFIGURED TO USE A PILOT SIGNAL AS A SUBSTITUTE LOAD-SENSE SIGNAL

Parker-Hannifin Corporati...


19. A method comprising:generating a valve load-sense pressure signal indicative of a pressure level at a workport of an actuator;
generating a pilot fluid signal to be communicated to a worksection of a valve assembly, such that when a pilot valve disposed at an end of a spool in the worksection is actuated, the pilot fluid signal is communicated to the end of the spool causing the spool to shift;
comparing a first pressure level of the valve load-sense pressure signal to a second pressure level of the pilot fluid signal; and
communicating the pilot fluid signal to a valve load-sense port fluidly coupled to a load-sensing pump of pressurized fluid when the second pressure level of the pilot fluid signal exceeds the first pressure level of the valve load-sense pressure signal, such that the load-sensing pump provides pressurized fluid having pressure level higher than the second pressure level.

US Pat. No. 11,067,100

DEVICE FOR SUPPLYING PORTS TO A MACHINE SECTION OF A HYDRAULIC MACHINE ARRANGEMENT


1. A device for supplying ports to a machine section of a hydraulic machine arrangement, the device comprising a low-pressure inlet port, a leakage inlet, a low-pressure chamber having a low-pressure opening for establishing fluid communication with the machine section, a high-pressure outlet port, and a high-pressure chamber that is in fluid communication with the high-pressure outlet port, the high-pressure chamber having a high-pressure opening for establishing fluid communication with the machine section, wherein the low-pressure inlet port is in fluid communication with the low-pressure chamber, wherein a leakage path extends from the high-pressure chamber through the machine section to the leakage inlet, wherein the device further comprises a control valve member connecting the leakage inlet to the low-pressure chamber, wherein the control valve member transfers to an open state when a pressure in the leakage inlet with respect to a pressure in the low-pressure chamber is higher than a predefined control pressure threshold, and wherein the control valve member is an adjustable valve member for adjusting the predefined control pressure.

US Pat. No. 11,067,099

METHOD AND SYSTEM FOR COMBINED PUMP WATER PRESSURE-COMPRESSED AIR ENERGY STORAGE AT CONSTANT TURBINE WATER PRESSURE


1. A system for combined pump water pressure-compressed gas energy storage at constant turbine water pressure, comprising:a pressurized liquid medium vessel;
a compressed-gas vessel, the pressurized liquid medium vessel being connected to the compressed-gas vessel through a connection line, and further comprising a stop valve along the connection line;
a high pressure water pump disposed upstream of the pressurized liquid medium vessel;
wherein the high pressure water pump pumps a liquid medium into the pressurized liquid medium vessel, wherein an increasing liquid medium level compresses gas located in the pressurized liquid medium vessel in a piston-like manner until the liquid medium fills the pressurized liquid medium vessel and presses the gas through the connection line into the compressed-gas vessel;
and wherein the stop valve shuts off flow of the gas out of the compressed-gas vessel through the connection line whereby energy is stored in the gas;
further comprising a second connection line connecting the compressed-gas vessel to the pressurized liquid medium vessel, and a gas-pressure reducing valve along the second connection line which reduces pressure of compressed gas from the compressed-gas vessel introduced into the pressurized liquid medium vessel and thereby maintains liquid medium pressure for driving a turbine at a constant pressure level of an operating pressure set in the gas-pressure reducing valve;
wherein the compressed-gas vessel has a volume that is smaller than the pressurized liquid medium vessel, and wherein the compressed-gas vessel and the pressurized liquid medium vessel are defined by a sealed and pressure-tight separation wall in a tubular storage vessel;
further comprising a helical steel reinforcement on the tubular storage vessel for damping radial pressure; and
further comprising terminal plates at pipe terminals of the tubular storage vessel, and wherein reinforcement steel bars connect the terminal plates along a length of the tubular storage vessel for absorbing axial force.

US Pat. No. 11,067,098

SILENCER FOR A CENTRIFUGAL COMPRESSOR ASSEMBLY

CARRIER CORPORATION, Pal...


1. A compressor comprising: a diffuser section comprising: a diffuser structure; and a silencer including: a silencer housing defining a cavity, the silencer housing having a mounting portion extending into an interior of the cavity; and a silencing pad disposed within the cavity, the silencing pad having a mounting groove for receiving the mounting portion therein, wherein an exposed surface of the silencing pad is arranged in contact with a portion of the diffuser structure.

US Pat. No. 11,067,097

VENTILATOR AND METHOD FOR MOUNTING A VENTILATOR


1. A ventilator, comprising:an electrical motor having a stationary element and a rotating element, the rotating element configured to rotate around an axial direction;
at least one rotating or non-rotating functional device respectively connected to the rotating element of the electrical motor or to the stationary element of the electrical motor, wherein the at least one rotating or non-rotating functional device is configured to respectively generate or influence an air current, and wherein the at least one rotating or non-rotating functional device is positioned coaxially around the electrical motor, on a first side of the ventilator, or on a second side of the ventilator, wherein the ventilator is configured to generate an air current from the first side to the second side of the ventilator; and
a connector that connects the at least one rotating or non-rotating functional device respectively to the rotating element of the electrical motor or to the stationary element of the electrical motor, the connector comprising:a first connector component; and
a second connector component,
wherein one of the first and second connector components is connected to the at least one rotating or non-rotating functional device, and the other of the first and second connector components is connected to the rotating element of the electrical motor or to the stationary element of the electrical motor,
the first and second connector components are configured to mechanically engage to thereby form an intermeshing and mutually bracing mechanical connection,
the first and second connector components include a plurality of engagement elements and corresponding engagement openings,
the engagement elements include an engagement neck and an engagement head,
the engagement neck has a smaller thickness than a thickness of the engagement head, and
the engagement openings include:an insertion area configured to allow insertion of the insertion head; and
a shifting area configured to allow a position of the insertion head to be shifted relative to the insertion area after the insertion head has been inserted into the insertion area, the shifting occurring due to the rotation of the first and second connector components relative to one another,
the shifting area being narrower than the insertion area so that the engagement neck mechanically engages with the shifting area to form the intermeshing and mutually bracing mechanical connection.



US Pat. No. 11,067,096

TURBOMACHINE ASSEMBLY

Nuovo Pignone Srl, Flore...


1. A turbomachine assembly comprising:a single shaft;
a radial gas expander supported on the single shaft between at least one first bearing and at least one second bearing, the radial gas expander comprising at least two radial stages coupled via an interstage path, the at least two radial stages including a high pressure stage and a low pressure stage, a plurality of movable guide vanes comprising a first set of movable guide vanes in the high pressure stage and a second set of movable guide vanes in the low pressure stage, a plurality of struts included in the interstage path configured to guide a gas flow from the high pressure stage to the low pressure stage; and
a compressor supported on the single shaft in an overhung position adjacent to at least one of the first or second bearing, the compressor including a plurality of movable inlet nozzles,
wherein the movable inlet nozzles and the movable guide vanes are configured to permit varying operating points of the radial gas expander and the compressor, respectively, such that the operating points of the radial gas expander and the compressor are varied independently from one another without needing to differentiate the relevant speeds enabling the single shaft to be used for both the radial gas expander and the compressor,
wherein an operative gas of the radial gas expander is different from a process gas of the compressor, and
wherein at least a seal is provided on the single shaft between the compressor and the radial gas expander to separate the operative gas of the radial gas expander from the process gas of the compressor.

US Pat. No. 11,067,095

IMPELLER FOR A RADIAL FAN AND GAS BURNER APPLIANCE

Honeywell Technologies Sa...


1. An impeller for a radial fan, the impeller comprising:a front side, a rear side and a peripheral edge;
a hub element;
an annular covering disc positioned on the front side;
an intake opening formed on the front side;
a support disc positioned on the rear side, the support disc having a radially outer edge and a radially inner edge;
blades extending substantially radially from the hub element towards the peripheral edge; and
outflow openings formed in the region of the peripheral edge, wherein:a first outer diameter of a radially outer edge of the annular covering disc is greater than a second outer diameter of the radially outer edge of the support disc,
openings are formed in the annular covering disc, wherein the openings are positioned between the radially outer edge of the annular covering disc having the first outer diameter and a radially inner edge of the annular covering disc having a first inside diameter, and
the second outer diameter of the radially outer edge of the support disc is less than an outer diameter of the blades.


US Pat. No. 11,067,094

COMPRESSOR SCROLL AND CENTRIFUGAL COMPRESSOR


1. A compressor scroll comprising:a scroll flow path forming portion that forms a scroll flow path extending in a circumferential direction about an axis that extends toward a first side and a second side opposite to each other, having a spiral starting portion and a spiral ending portion intersecting and communicating with each other, and allowing a fluid to flow therein from a diffuser outlet formed on the first side and in a radially inward direction about the axis; and
an outlet flow path forming portion that forms an outlet flow path communicating with the spiral ending portion of the scroll flow path and extending in a tangential direction of a circle about the axis,
wherein, in a cross section orthogonal to a flow direction of the scroll flow path, at least a radially outside part of an inner circumferential surface of the spiral ending portion has an arc shape overlapping a part of an imaginary circle,
wherein the scroll flow path forming portion includes an expanded portion, which causes the scroll flow path to expand from the imaginary circle toward the spiral starting portion in the radial direction, at least in the spiral ending portion in a portion where the spiral starting portion and the spiral ending portion intersect each other.

US Pat. No. 11,067,093

PROPELLER FAN, AIR-SENDING DEVICE, AND AIR-CONDITIONING APPARATUS

MITSUBISHI ELECTRIC CORPO...


1. A propeller fan comprising:a boss connected to a rotary shaft of a driving device; and
a plurality of blades provided at an outer periphery of the boss, and configured to send air in a direction along a rotation axis,
wherein in a cross section of each of the plurality of blades in a radial direction thereof, each blade includes,
an outer-side curved portion formed close to an outer peripheral portion of the blade and curved in such a way as to project toward a downstream side of an air flow,
an inner-side curved portion formed between the outer-side curved portion and the boss and curved in such a way as to project toward the downstream side of the air flow,
first maximum points at each of which a plane perpendicular to the rotation axis is tangent to part of a positive-pressure surface of the blade, which corresponds to a positive-pressure surface of the outer-side curved portion,
second maximum points at each of which a plane perpendicular to the rotation axis is tangent to part of the positive-pressure surface of the blade, which corresponds to a positive-pressure surface of the inner-side curved portion,
minimum points at each of which a plane perpendicular to the rotation axis is tangent to part of the positive-pressure surface of the blade, which corresponds to a positive-pressure surface of a valley-shaped portion curved in such a way as to be recessed between the first maximum point and the second maximum point, and
a connection point at which the boss contacts with the positive-pressure surface of the blade,
wherein between a leading edge and a trailing edge of the blade in a rotation direction of the blade, a starting point at which a first one of the first maximum points is located is closer to the leading edge than a starting point at which a first one of the second maximum points is located,
distances L1 between the minimum points and the first maximum points in the direction along the rotation axis vary in accordance with a position of each of the first maximum points such that the distance L1 increases from the starting point at which the first one the first maximum points is located, toward the trailing edge, and
distances L2 between the connection point and the second maximum points in the direction along the rotation axis vary in accordance with a position of each of the second maximum points such that the distance L2 increases from the starting point at which the first one of the second maximum points is located, toward the trailing edge, and
the second maximum points are located such that radii from a central point of the boss to the second maximum points vary in accordance with a position of each of the second maximum points, and the radius from the central point of the boss to the second maximum point increases from the starting point at which the first one of the second maximum points is located, toward the trailing edge of the blade.

US Pat. No. 11,067,092

SIDE-CHANNEL COMPRESSOR FOR A FUEL CELL SYSTEM FOR CONVEYING AND/OR COMPRESSING A GASEOUS MEDIA

Robert Bosch GmbH, Stutt...


1. A side-channel compressor (1) for a fuel cell system (37) for conveying and/or compressing a gas, the side-channel compressor comprisinga housing (3), wherein the housing (3) has a housing upper part (7) and a housing lower part (8),
a compressor chamber (30) which is situated in the housing (3) and which has at least one encircling side channel (19),
a compressor wheel (2) which is situated in the housing (3) and which is disposed so as to be rotatable about a rotation axis (4), wherein the compressor wheel (2) on a circumference thereof has blades (5) which are disposed in a region of the compressor chamber (30), and
a gas inlet opening (14) and a gas outlet opening (16) which are in each case configured on the housing (3) and which by way of the compressor chamber (30) are fluidically connected to one another,
wherein the compressor wheel (2) has at least one connection bore (21) which so as to be radial to the rotation axis (4) runs through at least one of the blades (5) and which connects an internal chamber (44) of the side-channel compressor (1) to a separation chamber (34).

US Pat. No. 11,067,091

TURBOCHARGER

TOYOTA JIDOSHA KABUSHIKI ...


1. A turbocharger comprising:a turbine housing that accommodates a turbine wheel;
a compressor housing that accommodates a compressor wheel;
a bearing housing that connects the turbine housing and the compressor housing to each other;
a tubular floating bearing inserted into the bearing housing; and
a shaft that connects the turbine wheel and the compressor wheel to each other, the shaft being inserted into the floating bearing, wherein
the shaft is rotatable relative to the floating bearing,
the floating bearing and the shaft are configured to permit oil to be drawn into a gap between an inner circumferential surface of the floating bearing and an outer circumferential surface of the shaft,
the shaft includesa shaft body having an axially central portion inserted into the floating bearing and opposite axial ends protruding from the floating bearing, and
an annular slinger protruding outward in a radial direction from an outer circumferential surface of at least one of the opposite axial ends of the shaft body,

the bearing housing defines an oil discharge space surrounding the slinger externally in the radial direction and an oil discharge port connecting the oil discharge space to an outside of the bearing housing,
the bearing housing includes a guide wall protruding from an inner wall surface of the oil discharge space, the guide wall being configured to guide oil in the oil discharge space toward the oil discharge port, and
the guide wall includes a surface that extends to intersect a circumferential direction with respect to a central axis of the shaft, the surface being arranged to face a direction opposite to a rotation direction of the shaft to obstruct a flow of the oil that is dispersed from the slinger and toward a leading side in the rotation direction of the shaft.

US Pat. No. 11,067,090

INTEGRAL ROTOR BORE AND BORE BASKET

Raytheon Technologies Cor...


1. An apparatus, comprising:a rotor bore having an inner radial hub;
a bore basket extending axially between a first axial end and a second axial end opposite the first axial end, the bore basket having:an engagement panel disposed at the first axial end;
a cylindrical inner radial panel;
a cylindrical outer radial panel, wherein the inner radial panel and the outer radial panel extend substantially between the first axial end and the second axial end, and the inner radial panel is disposed radially inside of and separated from the outer radial panel, and an annular passage is disposed between the inner radial panel and the outer radial panel;
a plurality of inlet apertures in fluid communication with the annular passage at a first axial position; and
a plurality of exit apertures in fluid communication with the annular passage at a second axial position, the second axial position separated from the first axial position;

wherein the second axial end of the bore basket is attached to the inner radial hub of the rotor bore, and the rotor bore and bore basket are a unitary structure.

US Pat. No. 11,067,089

FLOW GENERATOR

LG ELECTRONICS INC., Seo...


1. A flow generator comprising:an upper fan configured to suction upper air and generate a first airflow;
an upper fan housing configured to accommodate the upper fan from a lower side thereof and comprising a first discharge part through which the suctioned upper air is discharged;
a lower fan configured to suction lower air and generate a second airflow;
a lower fan housing configured to accommodate the lower fan from an upper side thereof and comprising a second discharge part through which the suctioned lower air is discharged;
an air guide disposed between the upper fan and the lower fan to guide generation of a third airflow in which the first airflow and the second airflow are mixed with each other; and
a control unit configured to control a rotational speed of the lower fan or the upper fan to adjust a discharge direction of the third airflow,
wherein the first discharge part is disposed to face the second discharge part with respect to a flow guide part.

US Pat. No. 11,067,088

HEATING, VENTILATION AND AIR CONDITIONING SYSTEM COMPRISING A FLUID COMPRESSOR


15. A vehicle comprising:a two-stage, fluid compressor configured to reach rotational speeds between 100,000 and 500,000 revolutions per minute and comprising a case having a fluid inlet and a compressed fluid outlet and containing a shaft rotatably mounted about a longitudinal axis, a first compression wheel and a second compression wheel mounted back-to-back on said shaft, said first compression wheel forming a first compression stage and said second compression wheel forming a second compression stage, and a motor positioned between the first compression wheel and the second compression wheel and arranged to rotate the shaft,
wherein the shaft is hollow and contains a threaded rod within the shaft, the threaded rod extends past longitudinal ends of the shaft to be directly attached to the first compression wheel and the second compression wheel,
wherein the case includes a through inner housing extending coaxially to the longitudinal axis and inside which is arranged at least the motor, said inner housing having an inner wall arranged to form, with the motor, channels between at least said inner wall and the motor, said channels extending between the first compression stage and the second compression stage, allowing the motor to be cooled on contact with fluid to be compressed flowing in the channels,
wherein the case includes at its surface at least one cavity forming at least one integrated housing arranged to receive at least one electronic component of the compressor, said integrated housing extending towards the inner wall to allow said electronic component to be cooled by the fluid to be compressed flowing in the channels,
wherein the shaft is rotatably mounted on the case with at least a front radial bearing, a back radial bearing and an axial bearing, and
wherein the axial bearing is positioned directly between the first compression wheel and the longitudinal end of the shaft that is closest to the first compression wheel, and the first compression wheel extends through the axial bearing into the shaft.

US Pat. No. 11,067,087

AXIAL-FAN BLOWER


1. A blower comprising:a motor housing having a longitudinal axis along a length of the blower;
a handle having a gripping portion positioned on a top portion of the motor housing and centered in a lateral direction of the motor housing, the gripping portion being capable of being grasped by a user's hand;
an airflow tube extending from a front portion of the motor housing, the airflow tube having a longitudinal axis that is parallel with the longitudinal axis of the motor housing;
a motor and a fan positioned within the motor housing, the motor driving the fan to blow air out of the airflow tube, the motor and fan positioned so that a majority of the motor and fan lie vertically aligned with and below the gripping portion; and
a removable battery to provide power to the motor, the battery positioned below the motor housing at a center along the lateral direction of the motor housing so that the handle, the motor and the battery are substantially vertically aligned; and
wherein the center of gravity of the blower is aligned below the gripping portion of the handle.

US Pat. No. 11,067,086

CENTRIFUGAL PUMP


1. A centrifugal pump comprising:one or more pumping stages;
a pressure controlled valve inside the centrifugal pump for supporting self-priming, the pressure controlled valve comprising a pretensioned leaf spring and a valve seat, the pretensioned leaf spring being configured to move from an opened position, in which the leaf spring is distanced from the valve seat to a closed position, in which the pretensioned leaf spring closes the valve seat, with a speed caused by fluid flow from said one or more pumping stages, the pretensioned leaf spring and the valve seat being arranged for dampening the speed of the pretensioned leaf spring caused by the fluid flow, wherein the pretensioned leaf spring has a preclosed position, in which the pressure controlled valve is partially closed;
a leaf spring support, wherein the valve seat is arranged eccentric with respect to a center of the leaf spring support.

US Pat. No. 11,067,085

METHOD FOR DETERMINING OPERATIONAL PARAMETERS OF A BLOOD PUMP

BERLIN HEART GMBH, Berli...


1. A method for determining operational parameters of a blood pump comprising a rotor which transports blood, the method comprising:determining a change in behaviour of at least two operational parameters including a first operation parameter and a second operation parameter, independently from each other, of the blood pump; and
determining a flow through the blood pump, a difference in pressure across the blood pump, and/or a viscosity of the blood based on the determined change in behaviour of the at least two operational parameters,
wherein in the blood pump with the rotor which transports the blood, a quantity that represents a force acting on the rotor in an axial direction of the blood pump is measured as the second operational parameter, and a change in behaviour of this quantity over time is determined.

US Pat. No. 11,067,084

PULSATION MUFFLERS FOR COMPRESSORS

GARDNER DENVER DEUTSCHLAN...


1. A pulsation muffler for a gaseous medium flow supplied by a compressor, the pulsation muffler comprising:a housing extending along a central axis with a medium flow inlet and a medium flow outlet, the medium flow outlet axially aligned with the medium flow inlet and having a cross sectional area that is larger than a cross sectional area of the medium flow inlet;
a plurality of tubular absorber elements, each made of sound-absorbing material, arranged concentrically in the housing, the plurality of tubular absorber elements includinga fluidic front absorber element,
a fluidic rear absorber element, and
a fluidic intermediate absorber element disposed between the fluidic front absorber element and the fluidic rear absorber element, wherein
each of the fluidic front absorber element, the fluidic rear absorber element, and the fluidic intermediate absorber element includes an inlet area and an outlet area positioned at an axial distance from the inlet area, wherein the inlet area of the fluidic front absorber element is connected to the medium flow inlet, the outlet area of the fluidic front absorber element is connected to the inlet area of the fluidic intermediate absorber element, and the outlet area of the fluidic rear absorber element is connected to the medium flow outlet; and

a plurality of flow compartments defined between respective tubular absorber elements of the plurality of tubular absorber elements to permit flow of gaseous medium between radially adjacent wall sections of respective tubular absorber elements of the plurality of tubular absorber elements.

US Pat. No. 11,067,083

COMPRESSOR AND AIR CONDITIONER

GREE ELECTRIC APPLIANCES,...


1. A compressor, comprising:a single low-pressure stage cylinder and two high-pressure stage cylinders, wherein the two high-pressure stage cylinders include a first high-pressure stage cylinder and a second high-pressure stage cylinder;
a roller is provided in the low-pressure stage cylinder, the first high-pressure stage cylinder, and the second high-pressure stage cylinder;
a lower flange, wherein the lower flange is provided with a middle chamber, and the middle chamber is so arranged that refrigerant moves from the low-pressure stage cylinder to the first high-pressure stage cylinder and/or the second high-pressure stage cylinder via the middle chamber within the compressor;
wherein the low-pressure stage cylinder, the first high-pressure stage cylinder and the second high-pressure stage cylinder are stacked, and an upper partition is arranged between the first and second high-pressure stage cylinders and a lower partition is arranged between the first high-pressure stage cylinder and the low-pressure stage cylinder, the first high-pressure stage cylinder and the second high-pressure stage cylinder are both situated at a same side of the low-pressure stage cylinder;
wherein the lower flange is situated below the low-pressure stage cylinder, the first high-pressure stage cylinder and the second high-pressure stage cylinder;
wherein the first high-pressure stage cylinder has a first sliding sheet slot, and a first sliding sheet is provided in the first sliding sheet slot, the second high-pressure stage cylinder has a second sliding sheet slot, and a second sliding sheet is provided in the second sliding sheet slot, the low-pressure stage cylinder has a third sliding sheet slot, and a third sliding sheet is provided in the third sliding sheet slot; and
wherein the first high-pressure stage cylinder and the second high-pressure stage cylinder are arranged in parallel, and the first high-pressure stage cylinder and the second high-pressure stage cylinder arranged in parallel are connected to the low-pressure stage cylinder in series, and the low-pressure stage cylinder functions as a first-stage compression cylinder;
wherein the first high-pressure stage cylinder and the second high-pressure stage cylinder function as an unloadable cylinder via a first pin engaging the first sliding sheet to change a state of the first sliding sheet from a free state to a locked state and/or a second pin engaging the second sliding sheet to change a state of the first sliding sheet from a free state to a locked state to adjust a number of loaded high-pressure stage cylinders while keeping the low-pressure stage cylinder loaded,
wherein the first pin is biased toward the first sliding sheet by a first spring and the second pin is biased toward the second sliding sheet by a second spring;
wherein the second high-pressure stage cylinder includes a chamber, the first spring has a first end engaging the first pin and an opposite second end disposed in the chamber, a first vertical passage extends through the upper partition to connect the first high-pressure stage cylinder to the second high-pressure stage cylinder and a second passage sloping upward from the chamber toward the first passage to connect the chamber to the first vertical passage;
the first sliding sheet, the second sliding sheet and the third sliding sheet being configured in such a way that:
in a first working mode of the compressor, the first sliding sheet is in the locked state, and both of the second sliding sheet and the third sliding sheet are in the free state where second pin is not engaged with the second sliding sheet; and
in a second working mode of the compressor, all of the first sliding sheet, the second sliding sheet and the third sliding sheet are in the free state, wherein a load on the compressor in the second working mode is greater than the load on the compressor in the first working mode.

US Pat. No. 11,067,082

SCREW COMPRESSOR

Kobe Steel, Ltd., Hyogo ...


1. A screw compressor, comprising:a compressor main body being of a two stage type including a low-pressure stage compressor main body which includes screw rotors, a rotor casing accommodating therein the screw rotors, and a main body casing accommodating therein the rotor casing, the main body casing having a first flange provided on an end thereof;
an electric motor for driving the screw rotors via a gear; and
a gearbox, which has a rectangle shape, accommodating therein the gear, having an attachment surface on which the first flange of the main body casing is attached,
wherein in a state where the main body casing of the low-pressure stage compressor main body is attached to the gearbox, a part of the first flange extends to an outside of the attachment surface, and a projection region of the rotor casing in its entirety exists within the attachment surface where the projection region of the rotor casing is a region projected in a direction vertical to the attachment surface, and
wherein the compressor main body is disposed at the gearbox such that a strong axis direction of the main body casing against vibration is within a range from ?45 degrees to +45 degrees with respect to a weak axis direction of the gearbox against the vibration.

US Pat. No. 11,067,081

SCREW COMPRESSOR

Kobe Steel, Ltd., Hyogo ...


1. A screw compressor comprising:a screw compressor main body;
a motor for driving the screw compressor main body;
a gearbox having opposite side surfaces and a bottom, the gearbox being interposed between the screw compressor main body and the motor to transmit a driving force of the motor to the screw compressor main body; and
a gas cooler having a cooler casing having a top and a side surface, the cooler casing being positioned below either the screw compressor main body or the motor and the cooler casing side surface being detachably attached to a one side surface of the opposite side surfaces of the gearbox,
wherein the cooler casing top is connected to the screw compressor main body via piping so that the gas cooler cools compressed gas discharged from the screw compressor main body; and
the cooler casing is spaced apart from the screw compressor main body, and a heat exchange portion of the gas cooler is provided in the cooler casing.

US Pat. No. 11,067,080

LOW COST SCROLL COMPRESSOR OR VACUUM PUMP

Air Squared, Inc., Broom...


18. A scroll device comprising:an orbiting scroll comprising an involute, a drive pin hole, and a plurality of first bearing bores all machined from a single side of the orbiting scroll;
a fixed scroll comprising an involute and a plurality of second bearing bores;
a plurality of idler shaft assemblies, each idler shaft assembly comprising:at least one first bearing secured within one of the plurality of first bearing bores by at least two retaining screws;
at least one second bearing secured within one of the plurality of second bearing bores by at least two additional retaining screws; and
an eccentric idler shaft secured to the at least one first bearing and the at least one second bearing;

a drive pin secured within the drive pin hole; and
a motor operably connected to the drive pin and configured to cause the orbiting scroll to orbit relative to the fixed scroll.

US Pat. No. 11,067,079

SCROLL COMPRESSOR

LG ELECTRONICS INC., Seo...


1. A scroll compressor, comprising:a frame;
a non-orbiting scroll provided with a non-orbiting end plate coupled to one side of the frame in an axial direction of the frame, and a non-orbiting wrap formed on a side surface of the non-orbiting end plate in the axial direction;
an orbiting scroll provided with an orbiting end plate located between the frame and the non-orbiting scroll, and an orbiting wrap formed on a side surface of the orbiting end plate in the axial direction and engaged with the non-orbiting wrap to form a compression chamber;
a plurality of first guides disposed between the frame and the non-orbiting scroll so as to be located outward from the non-orbiting wrap in a radial direction, and spaced apart by predetermined intervals in a circumferential direction; and
a plurality of second guides provided on the orbiting end plate to be located radially outward from the orbiting wrap, spaced apart by predetermined intervals along the circumferential direction to be coupled to the plurality of first guides, respectively, so as to allow an orbiting motion of the orbiting scroll together with the plurality of second guides, wherein each of the plurality of second guides includes a guide forming portion that extends from an outer circumferential surface of the orbiting end plate to protrude in the radial direction, and a guide accommodating portion formed through the guide forming portion in the axial direction to form an anti-rotation surface together with an outer circumferential surface of a respective first guide of the plurality of first guides, and wherein the guide forming portion is formed such that a circumferential length of an inner end portion connected to the outer circumferential surface of the orbiting end plate is shorter than a circumferential length of an outer end portion forming an outer circumferential surface of the guide forming portion.

US Pat. No. 11,067,078

SCROLL COMPRESSOR HAVING SINGLE DISCHARGE PORT OPEN AT STARTING END OF FIXED-SIDE WRAP

Daikin Industries, Ltd., ...


1. A scroll compressor, comprising:a fixed scroll having a spiral-shaped fixed-side wrap; and
a movable scroll having a spiral-shaped movable-side wrap,
the spiral-shaped fixed-side wrap and the spiral-shaped movable-side wrap meshing with each other to form a compression chamber therebetween, the movable scroll being rotated eccentrically with respect to the fixed scroll to discharge a refrigerant compressed in the compression chamber from a single discharge port open at a starting end of turns of the spiral-shaped fixed-side wrap,
a first port expanding portion and a second port expanding portion communicating with the single discharge port to enlarge a passage area of the single discharge port being arranged at an interval in a circumferential direction on a root side of the spiral-shaped fixed-side wrap of the fixed scroll,
a partition wall being formed between the first port expanding portion and the second port expanding portion facing the single discharge port, and
at least part of the first port expanding portion and the second port expanding portion overlapping with the spiral-shaped fixed-side wrap from the single discharge port when viewed from an axial direction.

US Pat. No. 11,067,077

ROTATING CYLINDER ENTHALPY-ADDING PISTON COMPRESSOR AND AIR CONDITIONING SYSTEM HAVING SAME

Gree Green Refrigeration ...


11. A rotating cylinder enthalpy-adding piston compressor, comprising: a two-stage rotating cylinder piston compressor, comprising:a first-stage rotating cylinder; a first cylinder liner; a first piston;
a second-stage rotating cylinder; a second cylinder liner; a second piston;
an enthalpy-adding assembly, which is connected between the first-stage rotating cylinder and the second-stage rotating cylinder, and which is configured to supply gas and add enthalpy between two stages of rotating cylinders;
an intermediate partition plate arranged between the first cylinder liner and the second cylinder liner;
an upper flange; a lower flange; and a lower cover plate; wherein
coupled with the second-stage rotating cylinder, an end surface of the upper flange is provided with two sunk grooves, which are an upper flange gas-intake port and a flow passage respectively; an opening is disposed radially in the upper flange; the opening is configured to be an upper flange gas supplying port which communicates with the upper flange gas-intake port and the flow passage;
a gas-intake port is further provided radially in the lower flange, and a diameter of an outer circle of the gas-intake port is identical with an inner diameter of a casing; coupled with the first-stage rotating cylinder, an end surface of the lower flange is provided with a sunk groove of the gas-intake port and a sunk groove of the lower flange discharge port; the sunk groove of the gas-intake port communicates with the gas-intake port provided radially; a discharge port is disposed adjacent to the sunk groove of a lower flange discharge port; an upper end surface of the lower flange is provided with a sunk concavity, which communicates with the discharge port, and a second intermediate cavity is formed between the sunk concavity and the lower cover plate; an edge of the second intermediate cavity is provided with a kidney-shaped port, which is a gas flow passage of the second intermediate cavity and communicates with a flow passage of the first cylinder liner, a flow passage of the intermediate partition plate and a flow passage of the second cylinder liner.

US Pat. No. 11,067,076

FLUID TRANSFER DEVICE

GENESIS ADVANCED TECHNOLO...


1. A fluid transfer device comprising:a housing having an inward facing surface;
an outer rotor secured for rotation about an outer rotor axis that is fixed in relation to the housing, the outer rotor having inward projections, the outer rotor being arranged to be driven in operation by a drive shaft;
an inner rotor secured for rotation about an inner rotor axis that is fixed in relation to the housing, the inner rotor axis being inside the outer rotor, the inner rotor having outward projections, the outward projections in operation meshing with the inward projections to define variable volume chambers as the inner rotor and outer rotor rotate; fluid transfer passages in a portion of the housing to permit flow of fluid into and out of the variable volume chambers; and
each outward projection having a first sealing surface and a second sealing surface circumferentially opposed to each other for respective engagement with corresponding sealing surfaces of adjacent inward projections such that in an operational configuration in which the outer rotor is driven in a first direction, over at least a portion of a range of travel of the outer rotor the first sealing surface seals against a first corresponding inward projection with a first gap between at least part of the second sealing surface and a second corresponding inward projection and when the outer rotor is driven in a second direction opposed to the first direction, over the same portion of the range of travel of the outer rotor the second sealing surface seals against the second corresponding inward projection with a second gap between at least part of the first sealing surface and the first corresponding inward projection.

US Pat. No. 11,067,075

METHOD FOR OPERATING A PRESSURE CONTROL SYSTEM COMPRISING A MULTI-STAGE COMPRESSOR, AND PRESSURE CONTROL SYSTEM

ZF CV SYSTEMS EUROPE BV, ...


1. A method for operating a pressure control system having a multistage compressor, the method comprising:providing, by the multistage compressor, a pressure medium that has been compressed multiple times in order to fill a pressure medium reservoir or pressure medium chambers of the pressure control system, the providing the pressure medium including:providing, by a first compression stage, a precompressed pressure medium and additionally compressing, via a second compression stage, the precompressed pressure medium, and/or
introducing an already compressed charge pressure medium into an intermediate volume between the first compression stage and the second compression stage of the multistage compressor, and further compressing, by the second compression stage, the charge pressure medium,

wherein the charge pressure medium simultaneously passes, via a control line, to a control input of a shut-off valve that interacts with the first compression stage, such that a charge pressure of the charge pressure medium predefines a control pressure of the shut-off valve,
wherein, by the shut-off valve, a pressure limitation and/or volume flow limitation, dependent on the control pressure, of the precompressed pressure medium conveyed by the first compression stage into the intermediate volume is set for the purposes of automatically adapting a compression power of the first compression stage by the charge pressure medium present in the control line.

US Pat. No. 11,067,074

COMPRESSOR WITH FLOODED START CONTROL

Emerson Climate Technolog...


1. A system comprising:a compressor for a refrigeration system; and
a controller that operates the compressor in a flooded-start control mode, the flooded start control mode including operating the compressor according to at least one cycle including a first time period during which the compressor is on, followed by a second time period during which the compressor is off,
wherein the controller receives asset data corresponding to at least one of a type and a characteristic of at least one component of the refrigeration system,
the controller determines the first time period, the second time period, and a number of cycles for the at least one cycle for the flooded-start control mode, the first time period, the second time period, and the number of cycles being based on the received asset data, and
the controller operates the compressor in the flooded-start control mode after determining the first time period, the second time period, and the number of cycles.

US Pat. No. 11,067,073

FLUID CONTROL DEVICE

MICROJET TECHNOLOGY CO., ...


1. A fluid control device, comprising: a piezoelectric actuator comprising a piezoelectric element and a vibration plate having a first surface and an opposing second surface, wherein the piezoelectric element is attached on the first surface of the vibration plate and is subjected to deformation in response to an applied voltage, and the vibration plate is subjected to a vibration in response to the deformation of the piezoelectric element, wherein a bulge is formed on the second surface of the vibration plate; and a deformable substrate comprising a flexible plate and a communication plate, wherein the flexible plate and the communication plate are stacked on each other and are subjected to a synchronous deformation to form a curvy synchronously-deformed structure collaboratively, wherein the flexible plate is divided into a fixed part and a movable part corresponding to the bulge of the vibration plate, wherein the communication plate is divided into a flat part and a deformed part, wherein the curvy synchronously-deformed structure is a permanently deformed structure formed of the movable part of the flexible plate and the deformed part of the communication plate corresponding to the movable part of the flexible plate, wherein the fixed part of the flexible plate is not deformed and the flat part of the communication plate is not deformed, and wherein the fixed part of the flexible plate is parallel to the piezoelectric actuator and the movable part is bent toward the bulge of the vibration plate, whereby the deformable substrate is combined with and positioned on the vibration plate of the piezoelectric actuator, and the curvy synchronously-deformed structure of the deformable substrate is bent in the direction toward the vibration plate, so that a specified depth is defined between the flexible plate of the deformable substrate and the huge of the vibration plate.

US Pat. No. 11,067,072

DIAPHRAGM PUMP FOR DOSING A FLUID AND AN ACCORDING METHOD

Ecolab USA Inc., Saint P...


1. A diaphragm pump for use as a detergent dosage pump, comprising:a pump housing having at least a first check valve and a second check valve;
a fluid chamber;
a diaphragm defining a wall of the fluid chamber and reciprocatingly movable; and
a stepping motor for reciprocating said diaphragm, the stepping motor comprising:an internal controller for actuating the stepping motor,
an external control unit for operating the internal controller of the stepping motor, the external control unit being connected to the internal controller by a common line, the common line configured to transmit both an operating signal and power for operating the stepping motor from the external control unit to the internal controller, wherein

the internal controller is located internal to the pump housing and the external control unit is located external to the pump housing,
the operating signal is a start signal for operating the diaphragm pump and/or the stepping motor at at least one preset parameter, and
a driving speed of the stepping motor is modulated by disrupting the power supply to the internal controller from the common line and transmitting a new operating signal corresponding to different preset parameters.

US Pat. No. 11,067,071

CYLINDER HEAD FOR COMPRESSOR

SABIC GLOBAL TECHNOLOGIES...


1. A compressor comprising:a cylinder body defining an outer wall having an inner body surface and an outer body surface opposite the inner body surface, wherein the inner body surface partially defines a cylinder chamber, and the cylinder body defines a first end and an open second end opposite the first end;
a cylinder head supported by the cylinder body at the second end, the cylinder head defining an inner head surface that faces the cylinder chamber, an outer head surface that is opposite the inner head surface along a central head axis, and a side wall configured to attach to the cylinder body, wherein the outer head surface defines a concavity along at least one direction; and
a piston supported in the cylinder chamber and movable along a longitudinal direction along an intake stroke that creates negative pressure in the cylinder chamber so as to draw fluid into the cylinder chamber through an inlet, and a discharge stroke that creates positive pressure in the cylinder chamber so as to force fluid out of the cylinder chamber through an outlet, wherein at least one of the inlet and the outlet is defined by the cylinder head,
wherein the concavity extends through a plane that is normal to the longitudinal direction and that intersects the outer head surface,
wherein the concavity has a width along the plane, along a first direction perpendicular to the longitudinal direction,
wherein the width is at least half of an outer dimension of the cylinder head that extends parallel the width, the outer di mension of the cylinder head extending from a first side wall of the cylinder head to a second side of the cylinder head opposite the first side wall, intersecting the central head axis.

US Pat. No. 11,067,070

CYLINDER ASSEMBLE STRUCTURE FOR COMPACT AIR COMPRESSOR

NEW MOTECH CO., LTD., Gw...


1. A cylinder coupling structure of an air compressor, comprising:a block (40);
a tubular-shaped cylinder (50) coupled to the block (40);
a valve assembly (70) provided with a suction valve and a discharge valve to block a front end of the tubular-shaped cylinder;
a valve cover (80) covering the valve assembly (70) so as to form a suction space and a discharge space at an upper portion of the valve assembly (70);
at least one pressurized bolt (90) coupling the valve cover 80 and the block (40) so as to pressurize the tubular-shaped cylinder (50) between the valve cover (80) and the block (40); a piston (60) reciprocating inside the tubular-shaped cylinder (50);
a stator (21) coupled to the block (40);
a rotator (25) located to rotate relatively with respect to the stator (21);
a crankshaft (30) coupled to the rotator to rotate integrally with the rotator (25) to be rotatable coaxially with the block (40); and
a connecting rod (34), each of both ends thereof being connected to the crankshaft and the piston, respectively, so as to convert a rotational movement of the crankshaft into a straight reciprocating movement of the piston (60),
wherein the piston (60) has double O-rings (63, 65) installed on each of the front end part and the rear end part of a tubular-shaped body (61) whose front end is closed and rear end is open, the double O-rings having a first double O-ring (63) and a second double O-ring (65), the first double O-ring having a first front O-ring (63A) and a first rear O-ring (63B), the second double O-ring having a second front O-ring (65A) and a second rear O-ring (65B),
wherein,
a first front annular fixed piece (63A?) is connected to an outer side of an inner diameter of the first front O-ring (63A), and protruded from a center of the first front O-ring,
a first rear annular fixed piece (63B?) is connected to an outer side of an inner diameter of the first rear O-ring (63B), and protruded from a center of the first rear O-ring,
a second front annular fixed piece (65A?) is connected to an outer side of an inner diameter of the second front O-ring (65A), and protruded from a center of the second front O-ring, and
a second rear annular fixed piece (65B?) is connected to an outer side of an inner diameter of the second rear O-ring (65B), and protruded from a center of the second rear O-ring,
wherein,
the first front annular fixed piece (63A?) is inserted into a first front insertion groove (62?) formed in a first fixing ring (62),
the first rear annular fixed piece (63B?) is inserted into a first rear insertion groove (611?) formed in a first ring insertion end (611),
the second front annular fixed piece (65A?) is inserted into a second front insertion groove (612?) formed in a second ring insertion end (612), and
the second rear annular fixed piece (65B?) is inserted into a second rear insertion groove (64?) formed in a second fixing ring (64).

US Pat. No. 11,067,069

TILT LINKAGE FOR VARIABLE STROKE PUMP

CW Holdings Ltd, Acheson...


1. An apparatus, comprising:a drive shaft coupled to a drive;
a wobble plate rotationally coupled to the drive shaft;
a plurality of displacement rods coupled to the wobble plate; and
a tilt actuator assembly rotationally coupled to the drive shaft, the tilt actuator assembly comprising:a slider slidably coupled to the drive shaft and coupled to a linear actuator disposed within the drive shaft; and
a thruster assembly coupled to the slider, extending to the wobble plate, and coupled to the wobble plate by a rotational thrust bearing.


US Pat. No. 11,067,068

METHOD FOR ACCURATE AND LOW-CONSUMPTION MEMS MICROPUMP ACTUATION AND DEVICE FOR CARRYING OUT SAID METHOD

DEBIOTECH S.A., Lausanne...


1. A method for actuating a pumping system to improve fluid delivery accuracy, the pumping system including,a pumping chamber having an inlet channel and an outlet channel, a pumping membrane in operative connection with the pumping chamber, an actuator operatively coupled to the pumping membrane, the pumping membrane configured to be pushed by the actuator to generate a positive pressure of a fluid in the pumping chamber and configured to be pulled by the actuator to generate a negative pressure of the fluid in the pumping chamber, and a pump controller configured to control the actuator according to a pumping pattern including a first pumping cycle and a second pumping cycle,
the first pumping cycle beginning by a partial push and ending by a partial push of the membrane by the actuator, and
the second pumping cycle beginning by a partial pull and ending by a partial pull of the membrane by the actuator,
wherein the method includes the steps of:
performing the pumping pattern with a first determined number of the first pumping cycle followed by a second determined number of the second pumping cycle or vice versa, wherein the first determined number and the second determined number are integer numbers that are not zero.

US Pat. No. 11,067,067

HYDRAULIC DEVICE

INNAS BV, Breda (NL)


1. A hydraulic device comprising a housing, a shaft which is mounted in the housing and rotatable about a first axis of rotation, wherein the shaft has a flange extending perpendicularly to the first axis, a plurality of pistons which are fixed to the flange at equiangular distance about the first axis of rotation, a plurality of cylindrical sleeves cooperating with the pistons to form respective compression chambers of variable volume, each cylindrical sleeve having a circumferential cylindrical wall about a linear centerline, wherein the cylindrical sleeves are rotatable about a second axis of rotation which intersects the first axis of rotation by an acute angle such that upon rotating the shaft the volumes of the compression chambers change, wherein each piston has a piston head including a ball-shaped circumferential wall in contact with the circumferential cylindrical wall of the sleeve, wherein each of the pistons is fixed to the flange by a piston pin extending through the piston to the flange and wherein the ball-shaped circumferential wall is fixed immovably with respect to the flange, the piston pin having a piston pin head including a circumferential outer side facing an inner side of the circumferential wall of the piston head, and wherein the piston pin head rests on a bottom of a piston recess inside the piston head.

US Pat. No. 11,067,066

HARMONIC DISTRIBUTION RADIAL PISTON HYDRAULIC MACHINE

POCLAIN HYDRAULICS INDUST...


1. A hydraulic machine having radial pistons and comprisinga cam and a cylinder block that rotate relative to each other about an axis of rotation,
the machine having a first and a second main duct respectively for feed and discharge or discharge and feed of hydraulic fluid,
the cylinder block having multiple radial cylinders connected to communication orifices of the cylinder block, there being a communication orifice for each cylinder of the multiple of cylinders,
the radial pistons mounted to slide in the cylinders and co-operating with the cam, said cam having a plurality of lobes, each lobe having two ramps, each ramp of each lobe extending between a top dead center arc and a bottom dead center arc,
the machine further comprising a fluid distributor for connecting the communication orifices to the first or the second main duct in sequences, the fluid distributor being constrained not to rotate relative to the cam,
each sequence of connecting any one particular communication orifice to the first or second main duct comprising a first connection stage during which the particular communication orifice is connected to the first main duct and a second connection stage during which said particular communication orifice is connected to the second main duct, the first and second connection stages being separated by a switchover stage,
the switchover stage comprising, in succession, for each cylinder,closing a connection of a selected communication orifice to one of the first and second main ducts,
isolating in an isolation stage the selected communication orifice from the two main ducts, thereby defining multiple isolation stages with one isolation stage associated with each cylinder, and
opening a connection of the selected communication orifice to the other one of the first and second main ducts,
wherein the selected communication orifice is the communication orifice of a particular cylinder, and each stage of the multiple isolation stages taking place while the piston mounted in the particular cylinder is bearing on a particular top dead center arc or bottom dead arc, which is defined as being the dead center arc that is associated with the isolation stage,

an angular position of a start or of an end of any particular isolation stage relative to the particular dead center arc that is associated with said particular isolation stage being defined as being the angular difference between said start or said end and the bisector of the angle covered by said particular dead center arc that is associated with said particular isolation stage;
wherein an angular position of the start or the end of a first isolation stage of the multiple isolation stages relative to the dead center arc that is associated with the first isolation stage is different from an angular position of the start or the end of a second isolation stage of the multiple isolation stages relative to the dead center arc that is associated with said second isolation stage during one revolution cycle of the machine, and
wherein the dead center arcs associated with said first isolation stage and said second isolation stage are both one of top dead center arcs and bottom dead center arcs.

US Pat. No. 11,067,065

PLASMA PRODUCTION AND CONTROL DEVICE

PHASE FOUR, INC., El Seg...


1. A plasma thruster comprising:(a) a plasma production chamber having an upstream first closed end and a downstream second open end;
(b) one or more magnets configured to establish a solely diverging magnetic field within the plasma production chamber and oriented substantially parallel to a central longitudinal axis of the plasma production chamber such that each magnet produces a magnetic field of the same polarity within the plasma production chamber, wherein the solely diverging magnetic field has a progressively decreasing strength in the upstream-to-downstream direction;
(c) a propellant tank and a flow regulator in communication with the plasma production chamber through the first closed end and configured to deliver a gaseous propellant along the central longitudinal axis of the plasma production chamber; and
(d) a radio frequency (RF) antenna external to the plasma production chamber, electrically coupled to an AC power source, and configured to deliver an RF energy to an interior portion of the plasma production chamber,
wherein the progressively decreasing strength of the solely diverging magnetic field is configured to produce an ion rebounding effect for an increase in efficiency of the plasma thruster.

US Pat. No. 11,067,064

PROPULSION SYSTEMS INCLUDING A SUBLIMABLE BARRIER

Massachusetts Institute o...


11. A method of making a propulsion system, comprising:depositing a sublimable organic compound onto and/or within one or more components of the propulsion system to form a sublimable barrier that physically isolates a propellant from an ambient environment outside of the propulsion system to prevent flow of the propellant to one or more components of the propulsion system until a majority of the sublimable barrier has been sublimated over a predetermined amount of time after exposure to a vacuum, wherein the predetermined amount of time is less than or equal to 5 weeks.

US Pat. No. 11,067,063

EMBEDDED CONDUCTIVE WIRES IN POLYMER ARTIFICIAL MUSCLE ACTUATING DEVICES

LINTEC OF AMERICA, INC., ...


1. An actuating device comprising:a polymer fiber; and
a conductive wire,

whereinthe conductive wire is wrapped around the polymer fiber, and
at least part of the conductive wire is embedded into the polymer fiber.

US Pat. No. 11,067,062

APPARATUS AND METHOD FOR GENERATING ELECTRICITY

LOOK FOR THE POWER, LLC, ...


1. An apparatus for capturing energy of a working mass including two or more immiscible liquids having different densities, the apparatus comprising:the working mass comprising at least two immiscible liquids having different densities, the at least two immiscible liquids comprising a predetermined proportion of oil and water;
a supporting structure;
only a single hermetically sealed vessel having an elongate shape housing the working mass wherein the working mass moves within the hermetically sealed vessel, wherein the water having a greater density than the oil tends to settle in a lower portion of the hermetically sealed vessel than the oil, which tends to keep the water in the lower portion as the working mass moves; and
an electric generator driven by fluid flow housed within the hermetically sealed vessel and having an inlet and an outlet, the electric generator driven by fluid flow configured to produce electric power as the predetermined portion of oil and water passes into the inlet and out of the outlet in response to a movement of the hermetically sealed vessel;
wherein the electric generator driven by fluid flow comprises a plurality of electric generators driven by fluid flow.

US Pat. No. 11,067,061

METHOD FOR PITCH ANGLE MEASUREMENT AND/OR FOR CONSTRUCTING A PITCH ANGLE MEASUREMENT SYSTEM

NIDEC SSB WIND SYSTEMS GM...


1. A method for at least one of pitch angle measurement and/or for constructing a pitch angle measurement system, the method comprising:providing a rotor blade of a wind turbine, wherein the rotor blade having a blade root and extending along a longitudinal blade axis, the rotor blade being rotatably mounted, by the blade root, to rotate about the longitudinal blade axis, on a rotor hub of the wind turbine, the rotor hub rotating or being rotatable about a rotor axis, wherein at least one chord direction indicator is connected to the rotor blade at a distance from the blade root and defines the at least one chord direction indicator direction indicative of a direction of a chord of the rotor blade at the location of the at least one chord direction indicator, by means of at least one torsion angle detection unit a torsion angle of the rotor blade is detected, by which the at least one chord direction indicator direction is rotated relative to a chord direction indicator reference direction, by means of a blade root angle detection unit a blade root angle is detected, by which the blade root is rotated relative to a blade root reference position about the longitudinal blade axis, and by means of an evaluation unit on the basis of the torsion angle and the blade root angle a pitch angle (?) of the rotor blade at the location of the at least one chord direction indicator is determined, wherein the rotor blade or at least one rotor blade portion of the rotor blade connected to the at least one chord direction indicator is produced in a or at least one mould before being connected to the at least one chord direction indicator,
while the rotor blade or the at least one rotor blade portion is still enclosed in the mould or the at least one mould, connecting the at least one chord direction indicator in a position, defined relative to the mould or the at least one mould, to the rotor blade or the at least one rotor blade portion, which is defined relative to the mould or the at least one mould; and
wherein the torsion angle detection unit is connected to the rotor blade or the at least one rotor blade portion at the blade root or in the area of the blade root.

US Pat. No. 11,067,060

SYSTEM AND METHOD FOR CONTROLLING A HYBRID ENERGY FACILITY HAVING MULTIPLE POWER SOURCES

General Electric Company,...


1. A method for automatically controlling a renewable energy facility having a plurality of power sources, the method comprising:operating, via a farm-level controller, the hybrid renewable energy facility at a first farm-level power set point;
modifying, via the farm-level controller, the first power set point to a second farm-level power set point;
in response to modifying the first power set point to the second farm-level power set point, generating one or more power change requests for individual controllers of the plurality of power sources;
generating a power output via the plurality of power sources so as to transfer power generation from one of the plurality of power sources to another to reach and maintain the second farm-level power set point, wherein generating a power output via the plurality of power sources further comprises:generating a power output via a first power source of the plurality of power sources, the first power source having a first response rate; and,
after the power output reaches the second farm-level power set point, generating at least a portion of the power output via a second power source of the plurality of power sources, the second power source having a second response rate that is less than the first response rate.


US Pat. No. 11,067,059

WIND TURBINE OR WIND PARK FOR SUPPLYING ELECTRIC POWER

Wobben Properties GmbH, ...


1. A method for supplying electric power to an electric supply network at a network connection point by a converter-controlled supply apparatus, comprising:permitting a selection between at least a current-impressing operating mode and a voltage-impressing operating mode for supplying the electric power;
performing open-loop or closed-loop control to a desired current value in the current-impressing operating mode;
performing the open-loop control or the closed-loop control to a desired voltage value in the voltage-impressing operating mode;
changing an instantaneous operating mode between the current-impressing operating mode and the voltage-impressing operating mode in a plurality of steps or a seamless transition; and
setting a mixed operating mode that combines a current-impressing property and a voltage-impressing property.

US Pat. No. 11,067,058

METHOD OF APPLYING A PROTECTIVE LAYER TO A WIND TURBINE ROTOR BLADE


1. A method of applying a protective layer to an outer surface of a wind turbine rotor blade, which method comprises the steps ofpreparing a protective layer for application to the outer surface of the rotor blade;
providing an air exit channel between the rotor blade and the protective layer;
attaching the protective layer to the outer surface of the rotor blade; and
extracting air through the air exit channel.

US Pat. No. 11,067,057

SPLITTER PLATE ARRANGEMENT FOR A SERRATED WIND TURBINE BLADE


1. A wind turbine blade (10) having a profiled contour including a pressure side and a suction side, and a leading edge (18) and a trailing edge (20) with a chord having a chord length extending therebetween, the wind turbine blade (10) extending in a spanwise between a root end and a tip end, the wind turbine blade comprising a plurality of serrations (100) provided along at least a portion of the trailing edge (20) of the blade (10),wherein the wind turbine blade (10) further comprises one or more splitter plates (106a, 106b), each of the one or more splitter plates being arranged to extend at least partly into a space in between adjacent ones of the serrations (100a, 100b, 100c),
wherein each of the one or more splitter plates has a uniform thickness,
wherein a thickness of the one or more splitter plates (106a, 106b) is less than a thickness of at least a part of the adjacent ones of the serrations, and
wherein the one or more splitter plates (106a, 106b) are arranged between, and are connected to, adjacent ones of the serrations.

US Pat. No. 11,067,056

WIND TURBINE BLADE BUSHING SYSTEM


1. A wind turbine blade bushing system for arrangement in a root end of a wind turbine blade, the wind turbine blade bushing system comprising:a threaded element for retaining a mounting bolt for a wind turbine blade, the threaded element being formed from a first material, wherein the threaded element is a bolt-receiving nut for receiving the mounting bolt for the wind turbine blade; and
an anchor element for arrangement proximal to a root end face of the root end of the wind turbine blade, wherein the anchor element retains the threaded element in the wind turbine blade and anchors the wind turbine blade bushing system in the root end face of the root end of the wind turbine blade, the anchor element being formed from a second material, the anchor element extending from the root end face to a longitudinal position distal to the root end face, and wherein the anchor element comprises a tubular member for arrangement at the root end of the wind turbine blade to retain the tubular member in a wind turbine blade body, wherein the tubular member acts to at least partly retain the bolt-receiving nut in the wind turbine blade,
wherein the tubular member comprises a first open end to receive a bolt, an internal chamber of the tubular member comprising a first constriction between a location of the bolt-receiving nut in the tubular member and the first open end so as to retain the bolt-receiving nut in the tubular member, the first constriction being sized and contoured to mate with an outer surface of the threaded element,
wherein the tubular member further comprises a second end positioned opposite the first open end, the internal chamber of the tubular member further comprising a second constriction between the location of the bolt-receiving nut in the tubular member and the second end so as to retain the bolt-receiving nut in place relative to the second end of the tubular member, the second constriction being sized and contoured to mate with the outer surface of the threaded element, and
wherein the first material has a higher strength and higher fracture toughness than the second material.

US Pat. No. 11,067,055

SYSTEM FOR CAPTURING THE ENERGY OF FLUID CURRENTS


1. A fluid current energy capture system for capturing energy from a fluid comprising:an axial turbine having an axis of rotation, said turbine having a free end, and a fixation end opposite said free end, said turbine having a helical blade for being driven by the fluid, said turbine having the helical blade has aerodynamic profiles having the dimensions of the turbines configured such that their blades are greater towards the free end;
said blade having two types of inclination for generating a torque and rotating said turbine about said axis of rotation, wherein first inclination comprises an inclination of a section of the helical blade with respect to said axis of rotation, wherein second inclination comprises an inclination of a section of the helical blade with respect to a plane perpendicular to the axis of rotation, wherein the first inclination is between 25° and 55° angles, and wherein the second inclination is between 0° and 45° angles;
a generator affixed to said fixation end, said generator generating power by rotation of said turbine driven by the fluid;
a mast, said generator being rotatably mounted to said mast for orientating said turbine in a flow stream of the fluid, said generator having a collar rotatably securing said turbine to said mast about a longitudinal axis of said mast, said generator rotatably mounted on a ring to the collar.

US Pat. No. 11,067,054

VORTEX GENERATOR

National University of Ir...


1. A vortex generator apparatus for mixing of fluids comprising:a fluid intake duct;
a fluid tank comprising:a first fluid inlet port in fluid communication with the fluid intake duct,
a second fluid inlet port, and
a fluid outlet port;

a turbine providedoutside of the fluid tank
in fluid communication with the fluid outlet port;

wherein the vortex generator apparatus comprises a fluid outlet duct in fluid communication with the fluid outlet port and wherein the turbine is located within the fluid outlet duct; and
wherein the fluid outlet duct has a divergent wall section surrounding the turbine.

US Pat. No. 11,067,053

METHOD FOR ORIENTATING THE BLADES OF A TURBINE

GE Renewable Technologies...


1. A method for orientating blades of a turbine past a non-reachable range of positions in a power plant, the blades being rotatable around orientation axes distinct from a rotation axis of the turbine, the turbine comprising means for orientating the blades, said means being adapted to exert an adjustable torque on the blades, the method comprising:a) stopping energy production of the turbine;
b) setting a water flow which runs the turbine to a value less than a normal energy production value;
c) rotating the turbine in a motor mode using energy from a grid;
d) adjusting the torque on the blades exerted by the means for orientating the blades to a reduced value while the turbine is still rotating and reducing a control pressure in a chamber of a servomotor such that the blades self-rotate around their orientation axes past the non-reachable range of positions under action of a hydraulic torque exerted by the water;
e) once the blades have overcome the non-reachable range of positions, adjusting the torque to a normal value greater than the reduced value so that the rotation of the blades around their orientation axis is stopped in a determined position.

US Pat. No. 11,067,052

DEVICE FOR CONTROLLING INTERNAL COMBUSTION ENGINE AND METHOD FOR CONTROLLING INTERNAL COMBUSTION ENGINE

HITACHI AUTOMOTIVE SYSTEM...


1. A control device of an internal combustion engine, comprising:an ignition device which is provided in a cylinder of the internal combustion engine;
an ignition control device which includes an ignition control unit to control ignition by the ignition device, and an ignition detection unit to detect ignition of an air-fuel mixture through ignition by the ignition device; and
an in-cylinder pressure detection device which detects a pressure in the cylinder,
wherein the ignition control device stops ignition by the ignition device on the basis of detection of the ignition of the air-fuel mixture through ignition by the ignition device,
wherein the ignition control device controls the ignition device to perform ignition a plurality of times in one combustion cycle of the internal combustion engine,
wherein after ignition by the ignition device, the ignition control device stops ignition by the ignition device on the basis of detection of ignition of the air-fuel mixture by the ignition detection unit in the one combustion cycle, and
wherein the ignition control device detects ignition of the air-fuel mixture through ignition by the ignition device on the basis of pressures before and after ignition in the cylinder detected by the in-cylinder pressure detection device.

US Pat. No. 11,067,051

IGNITION DEVICE OF INTERNAL COMBUSTION ENGINE

DENSO CORPORATION, Kariy...


1. An ignition device of an internal combustion engine comprising:an ignition coil that generates a discharge energy at a secondary coil connected to an ignition plug, the discharge energy being generated in response to a change in a primary current flowing through a primary coil;
a main ignition circuit that controls an energization of the primary coil so as to produce a spark discharge at the ignition coil;
an energy input circuit that performs an energy input operation for superposing a current having the same polarity to a secondary current flowing through the secondary coil; and
a signal generation circuit that generates, based on a main ignition signal that controls the main ignition operation, at least one of an energy input signal controlling the energy input operation and a target secondary current command signal commanding a target secondary current value, wherein
the signal generation circuit includes an operation region determination unit that determines an operation region of an internal combustion engine; and
the ignition device determines whether an energy input operation is performed in accordance with a determination result of the operation region determination unit.

US Pat. No. 11,067,050

VEHICLE POWER RELAY STARTUP CONTROL AND DIAGNOSTIC

Ford Global Technologies,...


1. A hybrid vehicle power distribution system comprising:a first bus electrically coupled to a starter for an engine;
a second bus electrically coupled to a power converter;
a switch disposed between the first bus and the second bus; and
a controller programmed to command the switch open during engine starting, and, in response to expiration of a predetermined time without starting the engine, command the switch open for a predetermined duration.

US Pat. No. 11,067,049

AUXILIARY POWER SYSTEM FOR VEHICLE

INPS ENVIRONMETNAL PRODUC...


1. An auxiliary power system for operation in cooperation with a primary engine, the auxiliary power system comprising:a secondary engine having a secondary engine lube-oil system in fluid communication with a sump and a recirculating oil pump;
a primary engine coolant heating system in fluid communication with the secondary engine;
a primary engine lubricant heating system in fluid communication with the secondary engine lube-oil system, the recirculating oil pump, and the sump;
a Direct Current (DC) power generator that generates a first output voltage, the DC power generator operably connected to the secondary engine;
a voltage regulator that regulates the first output voltage of the DC power generator; and
an engine speed control system that monitors an engine speed of the secondary engine and the first output voltage of the DC power generator, and adjusts a maximum permitted output power of the DC power generator responsive to at least one of the engine speed and the first output voltage,
wherein adjusting the maximum permitted output power of the DC power generator comprises:
decreasing the maximum permitted output power if at least one of the engine speed is below an engine speed threshold and the first output voltage is below a voltage threshold; and
increasing the maximum permitted output power if at least one of the engine speed is above the engine speed threshold and the first output voltage is above the voltage threshold for a first predetermined time period.

US Pat. No. 11,067,048

VEHICLE DEVICE MANAGEMENT

Ford Global Technologies,...


1. A vehicle comprising:a processor configured to,
responsive to periodically receiving, via a cellular network, a first geographical data indicative of a location of a mobile device, compare the first geographical data against a second geographical data indicative of a vehicle location,
responsive to detecting the mobile device is moving toward the vehicle and within a predetermined distance from the vehicle based on the first and second geographical data, send a Bluetooth activation signal, via the cellular network, to the mobile device, activating Bluetooth functionality on the mobile device, and
responsive to connecting with the mobile device via a Bluetooth link, unlock the vehicle.

US Pat. No. 11,067,047

EXTERNAL STARTER MOTOR

Pierre Deguara, Brooklyn...


1. An external starter motor for an internal combustion engine, comprising:a power supply;
an electric motor for producing torque;
a dog rotatable by the electric motor and adapted to be axially movable into and out of engagement with a starting mechanism to turn over the internal combustion engine; and
a circuit for detecting a presence of an output signal from the internal combustion engine and energising the external starter motor by the power supply when detecting the presence of the output signal, wherein the output signal is a light level provided by a light source positioned on the internal combustion engine, and wherein the circuit includes a photosensor and a starter circuit responsive to light detected by the photosensor to energise the external starter motor.

US Pat. No. 11,067,046

VENT FUEL HANDLING ASSEMBLY FOR A GAS ENGINE POWER PLANT AND METHOD OF RECOVERING VENT FUEL GAS FROM A GAS ENGINE POWER PLANT


1. A gas engine power plant, comprising:at least one gas operated generator set having a gas engine;
a vent fuel handling assembly having a vent fuel recovery piping provided with at least one inlet;
a vessel connected to the vent fuel handling assembly; and
a compressor connected to the gas engine of the power plant for feeding gas to the gas engine for combustion therein;
the vent fuel handling assembly having a vent fuel recovery piping provided with at least one inlet configured to collect vent fuel from a source of vent fuel in an engine room of the power plant;
the vessel being configured to maintain underpressure of less than prevailing surroundings atmospheric pressure, connected to the first inlet of the vent fuel recovery piping for storing fuel recovered via the at least one inlet; and
the compressor being connected to the vessel via a discharge piping at an inlet side of the compressor to provide underpressure to the vessel and discharge gas from the vessel.

US Pat. No. 11,067,045

FUEL INJECTION DEVICE

Hitachi Automotive System...


1. A fuel injection device comprising:a valve body;
a mover that performs valve opening and closing operations in collaboration with the valve body, the mover including a first inner diameter enlarged part;
a magnetic core that is excited by energization of a coil and that generates a magnetic force to drive the mover, the first inner diameter enlarged part forming an opening tapering so as to be enlarged in a direction away from the magnetic core; and
a nozzle holder that is a cylindrical member arranged on an outer peripheral side of the magnetic core and the mover so as to surround the mover and at least a part of the magnetic core adjacent to the mover,
wherein the magnetic core has a hole that opens at an end surface opposite to the mover and formed in a direction along an axis of the valve body,
wherein the mover has a slide extension member extending in the axial direction and terminating at a position located intermediate top and bottom surfaces of the mover, the slide extension member projecting within the first inner diameter enlarged part and away from the magnetic core, and
wherein the mover has a fuel passage defined by the first inner diameter enlarged part and the slide extension member.

US Pat. No. 11,067,044

FLUID CONVEYING DEVICE

Vitesco Technologies GmbH...


1. A fluid-conveying device for conveying a fluid from a tank, comprising:a first fluid-conveying pump (3);
a swirl pot (2) arranged within the tank; and
a second fluid-conveying pump (4) having a drive region (5) and a conveying region (6) coupled to the drive region (5),
wherein the fluid is conveyable from the swirl pot (2) by the first fluid-conveying pump (3), and wherein the conveying region (6) is configured and arranged so as to be drivable by the drive region (5), and
wherein the second fluid-conveying pump (4) is arranged downstream of the first fluid-conveying pump (3) in a flow direction toward a consumer, such that a volume stream of the fluid conveyed from the swirl pot (2) by the first fluid-conveying pump (3) first enters the second fluid-conveying pump (4), then exits the second fluid-conveying pump (4), and then, further downstream of the second fluid-conveying pump (4), enters the consumer.

US Pat. No. 11,067,043

INTAKE MANIFOLD

Honda Motor Co., Ltd., T...


1. An intake manifold comprising:a surge tank including an inlet of an air and a plurality of outlets of the air arranged in a first direction, extended along the first direction, and configured to form a space having a cross section larger than the inlet between the inlet and the plurality of outlets; and
a plurality of branch pipes, each of the plurality of branch pipes having a first end connected to each of the plurality of outlets to introduce the air into a plurality of cylinders of an internal combustion engine through the each of the plurality of branch pipes, wherein
the space is formed by a bottom surface extended along the first direction and formed in a shape of a flat surface or a curved surface, an upper surface extended along the first direction to face the bottom surface, a first surface extended from a first end of the bottom surface to a first end of the upper surface, and a second surface extended from a second end of the bottom surface to a second end of the upper surface,
the inlet is provided at a substantially central portion in the first direction on the first surface so that the air flows into the space along a second direction substantially perpendicular to the first direction, and
the bottom surface includes a swelling portion swelled upwardly at a substantially central portion in the first direction.

US Pat. No. 11,067,042

ENGINE INTAKE SYSTEM

MAZDA MOTOR CORPORATION, ...


1. An engine intake system supplies gas containing fresh air to a cylinder of an engine, the engine intake system comprising:a throttle valve that regulates an intake amount of the fresh air;
an intake passage having an internal space in which the fresh air that passed through the throttle valve is introduced into the cylinder of the engine; and
an EGR passage that communicates with the internal space of the intake passage and introduces at least some exhaust gas as EGR gas into the intake passage, wherein
the EGR passage includes a projected section having a substantially polygonal or at least partially cylindrical shape that extends into the internal space of the intake passage, and
an upstream lateral surface of the projected section has a projection length that is longer than a projection length on a downstream lateral surface of the projected section.

US Pat. No. 11,067,041

CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

HITACHI AUTOMOTIVE SYSTEM...


1. A control device for an internal combustion engine, the internal combustion engine including:an external EGR device with an EGR valve configured to recirculate exhaust gas from an exhaust system to an intake system of the internal combustion engine,
an air flow sensor provided in the intake system of the internal combustion engine and measuring an air flow rate of air taken into the internal combustion engine, and
an EGR sensor detecting an EGR rate of a mixed gas mixed with the exhaust gas,
the control device for the internal combustion engine comprising:
a processor configured toestimate the EGR rate of the mixed gas according to at least the air flow sensor and the EGR sensor,
determine a first EGR rate using, as an input, a detection signal of the EGR sensor provided on a downstream side of a throttle valve which adjusts a flow rate of the mixed gas flowing through the intake system and a second detection signal of a sensor at an intake of the intake system,
calculate a second EGR rate, based on a predetermined equation using, as an input, one or more detection signals of at least the air flow sensor, an opening degree sensor of the EGR valve, and an opening degree sensor of the throttle valve,
carry out response delay processing by calculating a measurement response delay of the EGR sensor as a lag on the second EGR rate to determine a third EGR rate,
determine whether dew condensation is present in the intake system when an estimated water vapor partial pressure in the intake system becomes equal to or higher than a saturated water vapor pressure, andwhen the dew condensation is not present, correct the second EGR rate based on a difference between the third EGR rate and the first EGR rate, and
when the dew condensation is present, correction of the second EGR rate is not executed, a partial pressure difference corresponding to the dew condensation is calculated and an EGR rate difference is calculated.



US Pat. No. 11,067,040

EXHAUST GAS COOLING APPARATUS

Hanon Systems, Daejeon (...


1. An exhaust gas cooling apparatus comprising:a plurality of heat exchange tubes disposed to be spaced apart from each other by a predetermined interval in a width direction, having a height longer than the width, and including an exhaust gas flowing therein; and
a main plate including a first communication hole to which one end of each of the heat exchange tubes is fixed and a second communication hole to which the other end of each of the heat exchange tubes is fixed;
wherein the heat exchange tubes includes: a first surface portion including a first bonding portion that protrudes toward a second side surface by a predetermined length in a periphery except for portions inserted into the first communication hole and the second communication hole among a first side surface perpendicular to a width direction and a periphery of the first side surface; and a second surface portion including a second bonding portion that protrudes toward the first side surface by a predetermined length in a periphery except for the portions inserted into the first communication hole and the second communication hole among a second side surface perpendicular to the width direction and a periphery of the second side surface, and a side surface of the second bonding portion and a side surface of the first bonding portion are disposed to be in contact with each other such that an exhaust gas flow path is formed between the first surface portion and the second surface portion,
wherein the first side surface includes: a first flat portion extending along a length direction; a 1-1-th curve portion extending from one end of the first flat portion to the first communication hole; and a 1-2-th curve portion extending from the other end of the first flat portion to the second communication hole, and the second side surface includes: a second flat portion extending along the length direction; a 2-1-th curve portion extending from one end of the second flat portion to the first communication hole; and a 2-2-th curve portion extending from the other end of the second flat portion to the second communication hole,
wherein the first side surface includes a plurality of first protrusions protruding in a direction opposite to the second side surface, and the second side surface includes a plurality of second protrusions protruding in a direction opposite to the first side surface,
such that each end portion of the 1-1-th curve portion and the 2-1-th curve portion of the plurality of heat exchange tubes is connected to one first communication hole, and each end portion of the 1-2-th curve portion and the 2-2 curve portion of the plurality of heat exchange tubes is connected to one second communication hole,
wherein the end portion of the 1-1-th curve portion and the end portion of the 1-2-th curve portion protrude in the same manner as the first protrusion, the end portion of the 2-1-th curve portion and the end portion of the 2-2-th curve portion protrude in the same manner as the second protrusion, such that the end portion of the 1-1-th curve portion is disposed to be in contact with the end portion of the 2-1-th curve portion of an adjacent heat exchange tube, and the end portion of the 1-2-th curve portion is disposed to be in contact with the end portion of the 2-2-th curve portion of an adjacent heat exchange tube,
wherein the protruding end portions of the 1-1-th, 1-2-th, 2-1-th, and 2-2-th curve portions are formed outside the longitudinal extensions of the first and second flat portions, and
wherein the cooling fluid flows outside the heat exchange tubes between the heat exchange tubes along the length direction of the heat exchange tubes.

US Pat. No. 11,067,039

HIGH COMPRESSION BOOSTING AND WATER GENERATION

Saudi Arabian Oil Company...


8. A system for condensing water for injection into an internal combustion engine to increase the engine's fuel economy and performance while reducing emissions, the system comprising:a sealable chamber coupled to the internal combustion engine and configured to draw in and compress a volume of ambient air, the sealable chamber comprising:an intake valve, which in an open state is configured to allow ambient air to be drawn into the sealable chamber, and which in a closed state is configured to seal the ambient air in the sealable chamber;
an exit valve, which in a closed state is configured to seal the ambient air in the sealable chamber, and which in an open state is configured to allow the compressed ambient air to vent from the sealable chamber;

a cooling section configured to receive the compressed ambient air vented through the exit valve from the sealable chamber, wherein the cooling section comprises:a cooling channel comprising a port and containing the compressed ambient air; and
a cooling device configured to cool the ambient air contained within the cooling channel to condense water vapor present in the ambient air into liquid water;

a reservoir connected to the port and configured to collect liquid water drained through the port from the cooling channel; and
a water injector configured to inject liquid water from the reservoir into at least one combustion chamber of the internal combustion engine.

US Pat. No. 11,067,038

DEVICE FOR ADDING A FLUID TO COMBUSTION AIR OF AN INTERNAL COMBUSTION ENGINE

Bayerische Motoren Werke ...


1. A device for adding a fluid to combustion air of an internal combustion engine for a motor vehicle, comprising:a first fluid container from which the fluid is extractable and supplied to the combustion air at an intake of the internal combustion engine;
a second fluid container, which is connected fluid-conductively to the first fluid container via a line;
a first fluid pump arranged in the line, whereinthe first fluid container has a smaller volume than the second fluid container;
the first fluid container is arranged in an internal combustion engine compartment of the motor vehicle, and
the first fluid pump conveys the fluid bidirectionally between the first fluid container and the second fluid container.


US Pat. No. 11,067,037

THREE-DIMENSIONAL MONOLITHIC DIAPHRAGM TANK

Moog Inc., East Aurora, ...


1. A three-dimensional monolithic diaphragm tank, the diaphragm tank comprising:a first portion having a first inner surface;
a second portion having a second inner surface;
a deformable diaphragm extending from a peripheral junction with said first inner surface and said second inner surface;
said first inner surface and said diaphragm defining a first chamber;
said second inner surface and said diaphragm defining a second chamber;
said first portion having an outlet port in fluid communication with said first chamber;
said second portion having an inlet port in fluid communication with said second chamber; and
said peripheral junction of said diaphragm and said first inner surface including an integral inner fillet having an inner radius.

US Pat. No. 11,067,036

COMBUSTOR AND JET ENGINE HAVING THE SAME

MITSUBISHI HEAVY INDUSTRI...


5. A jet engine comprising:a combustor in which fuel is burned using air taken through an inlet, comprising:a plurality of stagnation formers protruding from a combustor wall, contacting with the combustor wall and configured to locally dam the air which has been taken through the inlet;
a plurality of igniters for igniting a gas mixture of the air and the fuel; and
a passage through which the air flows,
wherein each of the plurality of igniters is configured to emit a flame by burning at least one of a solid fuel and an ignition explosive which automatically catches fire due to heat and pressure created by compression of the air which has been taken through the inlet,
wherein each of the plurality of igniters is configured to autoignite and be activated due to the heat and the pressure created by the compression of the air which has been dammed by at least one of the plurality of stagnation formers,
wherein the plurality of the igniters are arranged such that, in a state prior to autoignition of any of the plurality of the igniters, adjacent ones of the plurality of igniters are spaced apart from one another at a distance such that the flame from a first one of the adjacent ones of the plurality of the igniters cannot propagate to a second one of the adjacent ones of the igniters,
wherein at least a part of each of the plurality of the igniters faces the passage,
wherein the combustor wall forms a wall surface of the passage, and each of the plurality of the igniters extends into the wall surface of the passage in a first direction, and
wherein each of the plurality of the stagnation formers protrudes away from the wall surface of the passage in an opposite direction to the first direction;

an inlet located forward of the combustor; and
a nozzle located rearward of the combustor.

US Pat. No. 11,067,035

GAS TURBINE EXHAUST COOLING SYSTEM

ROLLS-ROYCE plc, London ...


1. A gas turbine engine including:a main gas flow exhaust nozzle having an annular inner surface which, in use, bounds a flow of exhaust gas; and
a cooling channel having a downstream end, the downstream end being divided into at least three nested cooling passages, the cooling channel providing a flow of cooling air to the at least three nested cooling passages, the flow of cooling air exiting from the at least three nested cooling passages over a first surface of the gas turbine engine or an adjacent airframe component, thereby protecting the first surface from the flow of exhaust gas;
the at least three nested cooling passages including 1) a first nested cooling passage having a first inlet that receives a first portion of the cooling air from the cooling channel and a first outlet, the first nested cooling passage formed from a first wall and a first dividing wall, 2) a second nested cooling passage having a second inlet that receives a second portion of the cooling air from the cooling channel and a second outlet, the second nested cooling passage formed from the first dividing wall and a second dividing wall, the first dividing wall separating the first nested cooling passage from the second nested cooling passage, and 3) a third nested cooling passage having a third inlet that receives a third portion of the cooling air from the cooling channel and a third outlet, the third nested cooling passage formed from the second dividing wall and a second wall, the second dividing wall separating the second nested cooling passage from the third nested cooling passage;
wherein the first outlet, the second outlet and the third outlet are staggered in an axial direction along a longitudinal axis of the main gas flow exhaust nozzle;
wherein the first dividing wall is radially inward of the second dividing wall in a radial direction of the main gas flow exhaust nozzle and a first length of the first dividing wall is less than a second length of the second dividing wall; and
wherein the first nested cooling passage, the second nested cooling passage and the third nested cooling passage overlap each other in at least one axial position along the axial direction of the main gas flow exhaust nozzle, the at least one axial position being axially between each of the first inlet and the first outlet of the first nested cooling passage, the second inlet and the second outlet of the second nested cooling passage and the third inlet and the third outlet of the third nested cooling passage.

US Pat. No. 11,067,034

LIMITED FLOW THRUST REVERSER ACTUATING

Woodward, Inc., Fort Col...


1. A method of operating an engine thrust reverser comprising a thrust-reversing element movable between a stowed position and a deployed position, the method comprising:transitioning the thrust-reversing element from the stowed position to the deployed position by:
conveying a primary fluid flow from a pressurized fluid source to a hydraulic actuator coupled to the thrust-reversing element;
operating a piloted check valve in a first stage;
inhibiting, by the piloted check valve in the first stage, fluid flow from a fluid return reservoir to the hydraulic actuator through one or more bypass fluid lines;
operating the piloted check valve in a second stage;
flowing, by the piloted check valve in the second stage, a secondary fluid flow from the fluid return reservoir to the hydraulic actuator, the secondary fluid flow being separate from the primary fluid flow; and
while conveying the primary fluid flow and the secondary fluid flows, limiting the primary fluid flow to a predetermined flow threshold;
the engine thrust reverser further comprises:
a directional control unit including a directional control valve operable to selectively route fluid between the pressurized fluid source, the hydraulic actuator, and the fluid return reservoir; and
the one or more bypass fluid lines providing fluid communication between the hydraulic actuator and the fluid return reservoir independent of the directional control valve.

US Pat. No. 11,067,033

DUAL GALLERY STEEL PISTON

Tenneco Inc., Lake Fores...


1. A piston, comprising:a body having an upper portion formed of a single piece of material and a lower portion formed of a single piece of material, the upper portion and the lower portion joined to one another and each including inner surfaces forming a cooling gallery therebetween, said cooling gallery extending circumferentially around a center axis of said body and spaced from said center axis, said lower portion including a partition extending into said cooing gallery and having a distal end engaging one of said inner surfaces of said upper portion, said partition extending circumferentially around said center axis, said partition dividing said cooling gallery into at least a first gallery portion and a second gallery portion, and said partition sealing said first gallery portion and said second gallery portion,
wherein said body is formed of steel, said upper portion of said body includes an upper combustion wall, said upper combustion wall presents a combustion bowl surrounded by an outer rim, said upper portion includes an upper outer rib depending from said outer rim of said upper combustion wall, said upper outer rib extends circumferentially around said center axis of said body and is spaced from said center axis of said body, said upper portion includes an upper inner rib depending from said upper combustion wall opposite said combustion bowl, said upper inner rib extends circumferentially around said center axis of said body and is located between said center axis of said body and said upper outer rib, said lower portion of said body includes a lower outer rib extending circumferentially around said center axis of said body and spaced from said center axis of said body, said lower outer rib is welded to said upper outer rib at an outer weld joint, said lower portion of said body includes a lower inner rib extending circumferentially around said center axis of said body and located between said center axis of said body and said lower outer rib, said lower inner rib is welded to said upper inner rib at an inner weld joint, said lower portion includes a lower wall located between said lower outer rib and said lower inner rib, said upper combustion wall includes an upper inner surface located between said upper outer rib and said upper inner rib, said lower wall includes a lower inner surface, said inner ribs present a first inner surface, and said outer ribs present a second inner surface, said inner surfaces face and surround said cooling gallery, and said body includes flash located adjacent said weld joints, and
wherein said partition extends upwardly from said lower wall to said distal end at or adjacent said upper inner surface of said upper combustion wall such that said first gallery portion is located between said partition and said inner ribs and said second gallery portion is located between said outer ribs and said partition, said second gallery portion has a volume larger than a volume of said first gallery portion, said partition has a cylindrical shape, said flash is located along said first weld joint in said first gallery portion and is physically separated from said second gallery portion by said partition, said second gallery portion contains cooling oil, and said first gallery portion contains air.

US Pat. No. 11,067,032

PISTON

Toyota Jidosha Kabushiki ...


1. A piston comprising:a piston head; and
a piston skirt connected to the piston head,
wherein
the piston skirt includes wall portions protruding outward from a surface of the piston skirt,
the wall portions adjacent to each other in a circumferential direction of the piston skirt are inclined in directions opposite to each other with respect to a direction of movement of the piston in a bore for the piston, and define a tapered portion,
the tapered portions are spaced away from each other in the circumferential direction of the piston skirt, and
a distance between lower end portions of the tapered portions adjacent to each other is smaller than a distance between upper end portions of the tapered portions adjacent to each other.

US Pat. No. 11,067,031

CYLINDER HEAD AND ENGINE

Yanmar Power Technology C...


1. A cylinder head of an engine, comprising:a plurality of exhaust ports configured to lead out exhaust gas from combustion chambers;
a plurality of intake ports configured to introduce fresh air into the combustion chambers;
an intake air aggregate part configured to aggregate the plurality of intake ports; and
an EGR gas passage in which EGR gas flows, wherein
exhaust outlets of the plurality of exhaust ports and an EGR gas inlet of the EGR gas passage are arranged side-by-side on a flat first side surface of the cylinder head and,
a fresh air inlet of the intake air aggregate part and an EGR gas outlet of the EGR gas passage are arranged side-by-side on a flat second side surface which is a side opposite to the first side surface.

US Pat. No. 11,067,030

MODULAR CYLINDER HEAD FOR ENGINE BLOCKS

AUTOSALES, INCORPORATED, ...


1. A cylinder head for an engine block having an oil outlet port disposed in a cylinder bank face, the cylinder head comprising:a cylinder head including a combustion side configured to be placed adjacent to the cylinder bank of the engine block and a valve side adapted to carry a valvetrain, wherein a receiving opening is disposed in said combustion side of said head,
a rocker shaft mounting bore disposed in the cylinder head, said rocker shaft mounting bore having a delivery opening disposed therein;
a head mounting bore disposed through said cylinder head, wherein said head mounting bore is separate from said receiving opening;
a receiving port fluidly connected at one end to said head mounting bore and fluidly connected at another end to said receiving opening: and
a delivery port fluidly connecting said head mounting bore to said delivery opening in said rocker shaft mounting bore.

US Pat. No. 11,067,029

SYSTEMS AND METHODS FOR COUPLING A CYLINDER HEAD TO A CYLINDER BLOCK

Cummins Inc., Columbus, ...


1. An internal combustion engine comprising:a cylinder head defined by an exhaust side and an intake side opposite the exhaust side, the cylinder head comprising:a first boss cylinder head conduit portion disposed proximate the exhaust side and configured to receive a first fastener without threadably engaging the first fastener, the first boss cylinder head conduit portion having a first diameter;
a first boss cylinder head cavity portion aligned with the first boss cylinder head conduit portion and configured to receive the first fastener without threadably engaging the first fastener, the first boss cylinder head cavity portion having a first spacing greater than the first diameter;
a second boss cylinder head conduit portion disposed proximate the intake side and configured to receive a second fastener without threadably engaging the second fastener, the second boss cylinder head conduit portion having a second diameter; and
a second boss cylinder head cavity portion aligned with the second boss cylinder head conduit portion and configured to receive the second fastener without threadably engaging the second fastener, the second boss cylinder head cavity portion having a second spacing greater than the second diameter;

a cylinder block coupled to the cylinder head, the cylinder block comprising a first boss cylinder block threaded portion aligned with the first boss cylinder head conduit portion, the first boss cylinder block threaded portion configured to threadably engage the first fastener;
wherein the first fastener does not threadably engage the cylinder head when: the first fastener is received in the first boss cylinder head cavity portion, the first fastener is received in the first boss cylinder head cavity portion, and the first fastener is threadably engaged with the first boss cylinder block threaded portion.

US Pat. No. 11,067,028

FUEL INJECTOR

Caterpillar Inc., Peoria...


1. A fuel injector system, comprising:an injector body having a proximal end and a distal end, the injector body defining a nozzle having an outlet at the distal end of the injector body;
a spill valve fluidly connected to the outlet, the spill valve having a spill valve member movable between an open position and a closed position;
a control valve, the control valve including a control valve member movable between an open position and a closed position;
a spring disposed between the spill valve member and the control valve member, the spring biasing the spill valve member toward the open position and the control valve member toward the closed position;
a check valve fluidly connected to the outlet and the control valve, the check valve including a check valve needle movable between an open position and a closed position; and
an electrical monitoring circuit having a conductive path that includes the control valve member, the spill valve member, and the spring, the monitoring circuit configured to output a signal indicative of at least one of the open position or the closed position of the spill valve member.

US Pat. No. 11,067,027

CONTROLLER AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE

TOYOTA JIDOSHA KABUSHIKI ...


1. A controller configured to control an internal combustion engine, the internal combustion engine including: an in-cylinder injection valve that injects fuel into a cylinder, a port injection valve that injects fuel into an intake port, an ignition device that ignites, by a spark, an air-fuel mixture of fuel and air introduced into the cylinder, an exhaust passage through which gas discharged out of the cylinder flows, and a three-way catalyst device provided in the exhaust passage, the controller comprising:a fuel introduction processor configured to:execute a fuel introduction process of introducing the air-fuel mixture, which has been introduced into the cylinder, into the exhaust passage without burning the air-fuel mixture in the cylinder;
execute the fuel introduction process in a state in which only the port injection valve of the in-cylinder injection valve and the port injection valve performs fuel injection; and
not execute the fuel introduction process when a requested injection amount is less than a minimum injection amount of the port injection valve.


US Pat. No. 11,067,026

ENGINE CONTROLLER, ENGINE CONTROL METHOD, AND MEMORY MEDIUM

TOYOTA JIDOSHA KABUSHIKI ...


1. An engine controller that calculates an intake air amount of an engine and executes a fuel injection control of an injector by determining a fuel injection amount based on a calculated value of the intake air amount, wherein the engine controller is configured to execute:a first calculation process that calculates the intake air amount based on a detected value of an intake air flow rate obtained by an air flow meter;
a second calculation process that calculates the intake air amount based on one of a detected value of an intake pipe pressure and a throttle opening degree without using the detected value of the intake air flow rate;
a determination process that determines whether an intake air pulsation in an intake passage of the engine is great;
a learning process that updates a difference amount learning value based on a difference amount by which a first intake air amount differs from a second intake air amount such that the difference amount learning value becomes close to the difference amount when the determination process determines that the intake air pulsation is not great, the first intake air amount being the calculated value of the intake air amount obtained by the first calculation process, the second intake air amount being the calculated value of the intake air amount obtained by the second calculation process;
a guard value calculation process that calculates an upper limit guard value and a lower limit guard value based on a state quantity that indicates a running state of the engine;
a guard process that sets the upper limit guard value as a learning reflected value when the difference amount learning value is greater than the upper limit guard value, sets the lower limit guard value as the learning reflected value when the difference amount learning value is less than the lower limit guard value, and sets the difference amount learning value as the learning reflected value when the difference amount learning value is less than or equal to the upper limit guard value and greater than or equal to the lower limit guard value; and
a calculation method switching process that sets the first intake air amount as the calculated value of the intake air amount when the determination process determines that the intake air pulsation is not great and sets a sum of the second intake air amount and the learning reflected value as the calculated value of the intake air amount when the determination process determines that the intake air pulsation is great.

US Pat. No. 11,067,025

CONTROLLER FOR VEHICLE AND METHOD FOR CONTROLLING VEHICLE

TOYOTA JIDOSHA KABUSHIKI ...


1. A controller for a vehicle, wherein the vehicle includes an internal combustion engine, and the internal combustion engine includes an exhaust passage including a catalytic device, the controller comprising:a temperature increasing control unit configured to execute temperature increasing control, wherein the temperature increasing control executes a fuel drawing process to generate heat in the catalytic device and transfer the heat generated in the catalytic device to a downstream side via gas flowing through the exhaust passage that serves as a medium, the fuel drawing process performs fuel injection as a crankshaft of the internal combustion engine is rotated when combustion in a cylinder is stopped to draw an air-fuel mixture containing unburned fuel into the catalytic device; and
an obtainment unit configured to obtain an intake air temperature that is a temperature of air drawn into the internal combustion engine, wherein
the temperature increasing control unit is configured to control an air-fuel ratio of the air-fuel mixture in the fuel drawing process based on the intake air temperature obtained by the obtainment unit so that when the intake air temperature obtained by the obtainment unit is relatively high, the air-fuel ratio of the air-fuel mixture becomes a leaner value than when the intake air temperature obtained by the obtainment unit is relatively low.

US Pat. No. 11,067,024

METHOD FOR REQUIREMENT-BASED SERVICING OF AN INJECTOR

MTU FRIEDRICHSHAFEN GMBH,...


1. A method for requirement-based servicing of an injector in a common rail system of an engine, comprising the steps of:a) providing a first characteristic diagram of injection cycles, which contains reference points that represent a load spectrum of a frequency of an operating point within rail pressure-injection mass classes, each of the reference points being a value representing a number of injection cycles as a function of rail pressure and fuel injection mass during operation of the engine;
b) providing a second characteristic diagram for a damage factor that describes hydrodynamic loading on the common rail system, the second characteristic diagram being pre-populated, the second characteristic diagram having the same reference points of the rail pressure and to the fuel injection mass as the first characteristic diagram;
c) determining a current operating point by measuring the rail pressure and the fuel engine mass and locating a corresponding reference point value on the first characteristic diagram;
d) reading out a reference point value from the second characteristic diagram that corresponds to the reference point on the first characteristic diagram;
e) calculating a reference injection cycle value by multiplying the reference point value of the current operating point by the corresponding reference point value from the second characteristic diagram to provide a corresponding reference point saved on a third characteristic diagram of reference injection cycles as a function of the rail pressure and the fuel injection mass;
f) repeating steps c)-e) to complete the third characteristic diagram;
g) calculating a total reference injection cycle value by adding up the reference injection cycle values;
h) calculating a load factor by dividing the total reference injection cycle value by a predetermined value of permitted injection cycles; and
i) setting the load factor as decisive for a servicing recommendation of the injector.

US Pat. No. 11,067,023

INTERNAL COMBUSTION ENGINE DIAGNOSTIC METHOD AND INTERNAL COMBUSTION ENGINE DIAGNOSTIC DEVICE

NISSAN MOTOR CO., LTD., ...


1. A diagnostic method for an internal combustion engine that includes a first fuel injection valve structured to inject fuel directly into a cylinder of the internal combustion engine and includes a second fuel injection valve structured to inject fuel into an intake passage connected to the cylinder, the diagnostic method comprising:defining a first region and a second region in a predetermined air-fuel ratio feedback control region in which feedback control of air-fuel ratio is implemented, wherein:each combustion cycle in the first region employs fuel injection from only the first fuel injection valve; and
each combustion cycle in the second region employs fuel injection from the first fuel injection valve and the second fuel injection valve;

setting a ratio between a quantity of fuel injection from the first fuel injection valve and a quantity of fuel injection from the second fuel injection valve in the second region to a predetermined ratio constant independently of operating status; and
implementing a diagnosis on at least one of the first fuel injection valve and the second fuel injection valve, based on at least one of a first air-fuel ratio learning value learned in the first region and a second air-fuel ratio learning value learned in the second region.

US Pat. No. 11,067,022

KNOCKING DETECTION APPARATUS AND INTERNAL COMBUSTION ENGINE CONTROL APPARATUS

HITACHI AUTOMOTIVE SYSTEM...


1. A knocking detection apparatus for detecting knocking of an internal combustion engine, comprising:a vibration sensor which detects vibration of the internal combustion engine;
a frequency analyzer which extracts two or more frequency components from the vibration detected by the vibration sensor;
a smoothing device which calculates background levels of the vibration of the internal combustion engine by smoothing the frequency components;
a background level estimator which acquires estimated values of the background level of the internal combustion engine based on an operating state of the internal combustion engine;
an index calculator which calculates a knocking index indicating whether knocking of the internal combustion engine has occurred by using the frequency components, the background levels, and the estimated values; and
a determination device which determines whether knocking of the internal combustion engine has occurred by comparing the knocking index and a determination threshold.

US Pat. No. 11,067,021

DETERMINATION OF PRESSURIZED FUEL TEMPERATURE


1. A method for determining a total temperature for pressurized fuel included in a high pressure fuel system arranged for providing fuel to an engine, said method comprising:determining a first temperature for a first fuel volume included in a first section of said high pressure fuel system, said first section including a common rail fuel system;
determining a second temperature for a second fuel volume included in a second section of said high pressure fuel system, said second section including at least one fuel injector arranged in a cylinder head; and
determining said total temperature for said pressurized fuel based at least on said first temperature and said second temperature.

US Pat. No. 11,067,020

CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE, INTERNAL COMBUSTION ENGINE, AND VEHICLE

TOYOTA JIDOSHA KABUSHIKI ...


1. A control device of an internal combustion engine for controlling an internal combustion engine, the engine comprising a particulate filter arranged in an exhaust passage of the internal combustion engine and configured to enable attachment of a secondary air feed system feeding air into exhaust gas flowing into the particulate filter, whereinthe control device of an internal combustion engine is configured, in the PM removal control for removing particulate matter deposited on the particulate filter, to perform temperature raising processing for controlling the internal combustion engine so that the air-fuel ratio of the exhaust gas discharged from the engine body is a rich air-fuel ratio richer than the stoichiometric air-fuel ratio and for feeding air from the secondary air feed system, and to perform regeneration processing for controlling the internal combustion engine so that the air-fuel ratio of the exhaust gas discharged from the engine body is leaner than an air-fuel ratio during the temperature raising processing and for feeding air from the secondary air feed system so that the air-fuel ratio of the exhaust gas flowing into the particulate filter is a lean air-fuel ratio leaner than the stoichiometric air-fuel ratio, so that the temperature of the particulate filter decreases.

US Pat. No. 11,067,019

EXHAUST CONTROLLING APPARATUS FOR INTERNAL COMBUSTION ENGINE

MITSUBISHI JIDOSHA KOGYO ...


1. An exhaust controlling apparatus for an internal combustion engine comprising:a filter that is disposed on an exhaust path of the internal combustion engine and that captures particulate matter exhausted from the internal combustion engine; and
a controller that executes regeneration control that incinerates the particulate matter captured on the filter, wherein
while the controller is executing the regeneration control, the controller executes lean incineration control and stoichiometric incineration control in combination with each other;
the lean incineration control incinerates the particulate matter, keeping an air-fuel ratio of the internal combustion engine to be leaner than a logical air-fuel ratio; and
the stoichiometric incineration control incinerates the particulate matter, oscillating the air-fuel ratio of the internal combustion engine about the logical air-fuel ratio as an average air-fuel ratio at a predetermined first frequency of the oscillation equal to or larger than a reference frequency of the oscillation,
wherein before the controller starts the regeneration control, the controller executes normal control that oscillates the air-fuel ratio of the internal combustion engine about the logical air-fuel ratio serving as the average air-fuel ratio at an amplitude smaller than that of the stoichiometric incineration control and at the reference frequency of the oscillation.

US Pat. No. 11,067,018

METHOD FOR REGENERATING AN OTTO PARTICLE FILTER OF AN INTERNAL COMBUSTION ENGINE OF A VEHICLE

Dr. Ing. h.c. F. Porsche ...


1. A method for regenerating an Otto particle filter of an internal combustion engine of a vehicle, the method comprising:determining that a loading state of the Otto particle filter is above a regeneration threshold,
heating the Otto particle filter to a minimum threshold temperature by operating the internal combustion engine in a heating mode,
switching, in response to a temperature of the Otto particle filter reaching or exceeding the minimum threshold temperature, an operation of a first cylinder of the internal combustion engine from a normal mode to a pump mode by deactivating a fuel supply to the first cylinder so that only air is introduced into the cylinder, wherein the temperature of the Otto particle filter is maintained at or above the minimum threshold temperature during the operation of the first cylinder in the pump mode, and
continuing to operate at least a second cylinder of the internal combustion engine with the fuel supply.

US Pat. No. 11,067,017

CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

TOYOTA JIDOSHA KABUSHIKI ...


1. A control device for an internal combustion engine,the internal combustion engine comprising:an engine body;
a filter provided in an exhaust passage of the engine body and configured to trap particulate matter in exhaust; and
a catalyst device provided in the exhaust passage at the upstream side from the filter in the direction of exhaust flow, wherein

the control device comprises an electronic control unit configured to cause a concentration of carbon dioxide in exhaust flowing into the filter to decrease when the temperature of the filter becomes a predetermined first temperature setting or more and less than a predetermined second temperature setting higher than the first temperature setting,
the first temperature setting is a temperature selected from a temperature band at which ash deposited on the filter can be made to separate from the filter when the inside of the filter is in an atmosphere where the concentration of carbon dioxide is lower than when it is in an exhaust atmosphere, and
the second temperature setting is a temperature set so as to prevent excessive temperature rise of the catalyst device.

US Pat. No. 11,067,016

METHOD AND SYSTEM FOR CONTROLLING ENGINE FUELING

Ford Global Technologies,...


1. An engine system, comprising:a first cylinder;
a second cylinder;
a first fuel injector coupled to a first intake port of the first cylinder;
a second fuel injector coupled to a second intake port of the second cylinder; and
a controller with computer readable instructions stored on non-transitory memory for:responsive to a drop in torque demand, selectively deactivating the second cylinder while continuing to fuel the first cylinder for a number of cylinder events; and
on each event for the number of cylinder events,updating a value of a first fuel puddle in the first intake port via a first set of fuel evaporation constants;
updating a value of a second fuel puddle in the second intake port via a second, different set of fuel evaporation constants until the second fuel puddle is at a saturation limit, and then maintaining the value of the second fuel puddle; and
adjusting a pulse-width commanded to the first fuel injector based on the value of the first fuel puddle.



US Pat. No. 11,067,014

SYSTEM AND METHOD FOR REDUCING ENGINE KNOCK

Cummins Inc., Columbus, ...


1. A system comprising:a spark-ignition internal combustion engine having an intake system structured to deliver induction gas to an intake manifold of the engine, a fuel system structured to provide a mixed fuel and air charge to a combustion chamber of the engine, and an exhaust system including a three-way catalyst;
a compressor coupled to an inlet of the intake system;
a low pressure exhaust gas recirculation (EGR) system structured to recirculate exhaust gas to the intake system at least from an intermediate position of the three-way catalyst; and
an electronic control unit (ECU) configured to determine a knock index value and recirculate exhaust gas to the intake system with the low pressure EGR system to reduce a likelihood of engine knock in response to the knock index value exceeding a knock threshold value.

US Pat. No. 11,067,013

SYSTEMS AND METHODS FOR INFERRING FUEL VAPOR CANISTER LOADING RATE

Ford Global Technologies,...


1. A system for a vehicle comprising:a fuel tank configured within a fuel system, the fuel tank including a fuel level sensor;
a fuel vapor canister, configured within an evaporative emissions control system, selectively fluidically coupled to the fuel tank via a fuel tank isolation valve;
an evaporative level check monitor, the evaporative level check monitor including a vacuum pump and a pressure sensor;
a fuel filler neck coupled to the fuel tank, the fuel filler neck configured in a fuel filler system;
a spud valve positioned in the fuel tank, the spud valve configured to open under negative pressure in the fuel tank with respect to atmospheric pressure;
a vapor recovery line coupled between the fuel tank and the fuel filler neck;
a vapor recovery line pressure sensor coupled within the vapor recovery line; and
a controller storing instructions in non-transitory memory that, when executed, cause the controller to:monitor a pressure in the vapor recovery line during a refueling event via the vapor recover line pressure sensor;
monitor a fuel level in the fuel tank during the refueling event via the fuel level sensor to indicate a rate of fuel dispensation during the refueling event;
indicate a fuel vapor canister load based on a steady-state vapor recovery line pressure during the refueling event;
indicate a restriction in the vapor recovery line based on the steady-state vapor recovery line pressure during the refueling event; and
responsive to an indication of the restriction in the vapor recovery line, adjust a test for a presence or absence of undesired evaporative emissions in the fuel system and/or evaporative emissions control system.


US Pat. No. 11,067,012

OPTIMIZED FUEL MANAGEMENT SYSTEM FOR DIRECT INJECTION ETHANOL ENHANCEMENT OF GASOLINE ENGINES

Massachusetts Institute o...


1. A fuel management system for a spark ignition engine, comprising:a first fueling system that uses direct injection;
a second fueling system that uses port fuel injection; and
a three-way catalyst configured to reduce emissions from the spark ignition engine,
wherein the fuel management system is configured to provide fueling in a first torque range, the first torque range being a first range of torque values at which both the first fueling system and the second fueling system are operable throughout the first range of torque values,
wherein the fuel management system is further configured such that a fraction of fueling provided by the first fueling system increases with torque in at least a part of the first range of torque values,
wherein the first fueling system is configured to provide octane enhancement by evaporative cooling,
wherein the fuel management system is further configured such that both the first and second fueling systems are used at a maximum value of torque at which the spark ignition engine is operable at different speeds,
wherein the fuel management system is further configured to provide fueling in a second torque range, the second torque range being a second range of torque values at which the second fueling system is operable throughout the second range of torque values and the first fueling system is not operable throughout the second range of torque values,
wherein the fuel management system is further configured such that when the system provides fueling at a torque value that exceeds the second range of torque values, the spark ignition engine is operated in the first torque range, and
wherein the spark ignition engine is configured to operate at a stoichiometric or substantially stoichiometric air/fuel ratio in at least part of the first torque range and in at least part of the second torque range.

US Pat. No. 11,067,011

TARGET COMPRESSOR RATIO AND BURNED GAS RATIO GENERATION IN DIESEL AIR CHARGING MULTIVARIABLE CONTROL

GM GLOBAL TECHNOLOGY OPER...


1. A control module, comprising:a dynamic target selection module configured to (i) receive an intake manifold pressure setpoint and a measured intake manifold pressure, (ii) determine a difference between the intake manifold pressure setpoint and the measured intake manifold pressure, (iii) select between the intake manifold pressure setpoint and the measured intake manifold pressure based on a comparison between the determined difference and a threshold, and (iv) output a selected one of the intake manifold pressure setpoint and the measured intake manifold pressure as a selected intake manifold pressure setpoint based on the selection; and
a multivariable control module configured to (i) receive at least one target setpoint that is based on the selected intake manifold pressure setpoint and (ii) control operation of an air charging system of a vehicle based on the at least one target setpoint.

US Pat. No. 11,067,010

METHOD AND DEVICE FOR DETERMINING COMBUSTION NOISE PARAMETERS

SAIC MOTOR CORPORATION LI...


1. A method for determining combustion noise parameters, characterized in that said method comprises:acquiring a cylinder pressure sequence, wherein said cylinder pressure sequence comprises cylinder pressures corresponding to different crank angles ? and corresponding moments t?;
calculating a first parameter sequence according to said cylinder pressure sequence, wherein said first parameter sequence is a parameter sequence in a time domain, and said first parameter sequence comprises one or more of a top surface cylinder force sequence, a top surface cylinder force rise rate sequence, a side surface cylinder force sequence and a side surface cylinder force rise rate sequence;
wherein the top surface cylinder force in said top surface cylinder force sequence is Ftop=Pc·Stop, the top surface cylinder force rise rate in said top surface cylinder force rise rate sequence is





the side surface cylinder force in said side surface cylinder force sequence is Fside=Pc·Sside, the side surface cylinder force rise rate in said side surface cylinder force rise rate sequence is




Stop is an equivalent area of a cylinder top surface and Sside is an equivalent area of a cylinder side surface; anddetermining a target parameter for representing combustion noise in a cylinder according to said first parameter sequence.

US Pat. No. 11,067,009

METHOD FOR ESTIMATING CYLINDER PRESSURE


1. A method for estimating a cylinder pressure (CP) in an internal combustion engine arrangement, said internal combustion engine arrangement comprising an internal combustion engine having a combustion cylinder and a reciprocating piston movable within said combustion cylinder between a bottom dead center (BDC) and a top dead center (TDC), and further a flow control valve assembly adapted to regulate the flow of a fluid medium passing through the flow control valve in fluid communication with the combustion cylinder and comprising a valve operable between an open position and a closed position and an actuator operable to provide an opening force for opening the valve,characterized by the method comprising the steps of:
initiating an opening of said valve by said actuator during an expansion stroke;
monitoring said valve to determine a point in time (Tp) when said valve opens;
determining a differential pressure (DP) between a gas pressure level of the fluid medium in said combustion cylinder and a pressure level of the combustion gas in a fluid medium passage downstream said valve at said point in time (Tp);
receiving data being indicative of a pressure (EP) in said fluid medium passage at said point in time (Tp); and
determining the cylinder pressure (CP) at said point in time (Tp) based on the determined differential pressure (DP) and said data indicative of the pressure in said fluid medium passage.

US Pat. No. 11,067,008

INTERNAL COMBUSTION ENGINE CONTROL METHOD AND INTERNAL COMBUSTION ENGINE CONTROL DEVICE

NISSAN MOTOR CO., LTD., ...


1. An internal combustion engine control method comprising:setting exhaust valve timing at a first exhaust valve timing setting and setting intake valve timing at a first intake valve timing setting when in a first operation region for operating an internal combustion engine with an air fuel ratio set at a predetermined air fuel ratio setting;
setting the exhaust valve timing at a second exhaust valve timing setting and setting the intake valve timing at a second intake valve timing setting when in a second operation region for operating the internal combustion engine with the air fuel ratio set leaner than the predetermined air fuel ratio setting, wherein the second exhaust valve timing setting is more advanced than the first exhaust valve timing setting, wherein the second intake valve timing setting is more advanced than the first intake valve timing setting; and
in response to a shift of an operating state of the internal combustion engine from the first operation region into the second operation region, starting a shift of the air fuel ratio after the exhaust valve timing is actually set at the second exhaust valve timing setting and the intake valve timing is actually set at the second intake valve timing setting.

US Pat. No. 11,067,007

GAS TURBINE AND METHOD FOR OPERATING GAS TURBINE

MITSUBISHI POWER, LTD., ...


1. A gas turbine which includes a compressor, a combustor, and a turbine, the gas turbine comprising:a bleed passage for supplying compressed air bled from the compressor to the turbine as cooling air;
an exhaust chamber on a downstream side of the turbine;
an exhaust passage for exhausting the compressed air in the bleed passage to the exhaust chamber;
an exhaust valve which is in the exhaust passage;
an ejector which is further on the downstream side in a flow direction of the compressed air than the exhaust valve in the exhaust passage, the ejector being directly connected to the exhaust chamber;
a driving fluid supply device which is configured to supply a driving fluid to the ejector;
a control device which is configured to open the exhaust valve and operate the driving fluid supply device, at a time of start-up or stopping of the gas turbine; and
a pressure detector which is configured to detect a pressure of the compressed air flowing through the exhaust passage or a pressure of the driving fluid which is supplied to the ejector by the driving fluid supply device,
wherein:
the control device is configured to control an operation of the driving fluid supply device, based on a detection result of the pressure detector;
the driving fluid supply device includes a driving fluid supply passage for supplying the driving fluid to the ejector, and a flow regulation valve which is in the driving fluid supply passage; and
the control device is configured to control a degree of opening of the flow regulation valve, based on the detection result of the pressure detector.

US Pat. No. 11,067,006

GAS TURBINE ENGINE SYSTEM WITH SYNCHRONIZATION FEATURES FOR GEARBOX OPERATION

Rolls-Royce Corporation, ...


1. A gas turbine engine comprisinga high-pressure spool that includes a compressor, a high-pressure turbine, and a high-pressure spool shaft rotatably coupled with the compressor and the high-pressure turbine to transmit rotational energy from the high-pressure turbine to the compressor during operation of the gas turbine engine to drive the compressor to rotate about an engine axis,
a low-pressure spool that includes a fan, a low-pressure turbine, and a low-pressure spool shaft coupled with the fan and the low-pressure turbine to transmit rotational energy from the low-pressure turbine to the fan to cause the fan to rotate about the engine axis to provide thrust for the gas turbine engine during operation of the gas turbine engine and to transmit rotational energy from the fan to the low-pressure turbine to cause the low-pressure turbine to rotate about the engine axis during a windmill event in which the fan is rotated about the engine axis in response to ambient air pressure acting on the fan,
an accessory system that includes an oil pump configured to supply oil to the low-pressure spool and the oil pump being driven by rotation of the high-pressure spool shaft, and
an overrunning clutch coupled with the high-pressure spool shaft and the low-pressure spool shaft to allow the high-pressure spool shaft to rotate relative to the low-pressure spool shaft about the engine axis at a greater speed than the low-pressure spool shaft during operation of the gas turbine engine such that the oil pump is driven during operation of the gas turbine engine and to rotatably couple the high-pressure spool shaft with the low-pressure spool shaft to cause the high-pressure spool shaft to rotate with the low-pressure spool shaft about the engine axis at a same speed as the low-pressure spool shaft during the windmill event so that the oil pump is driven during the windmill event.

US Pat. No. 11,067,005

FAN DRIVE GEAR SYSTEM

RAYTHEON TECHNOLOGIES COR...


1. A gas turbine engine comprising: a fan section; a star gear system for driving the fan section having a carrier mounted to a static structure to prevent the carrier from rotating; a first fan section support bearing supporting a fan drive shaft and mounted forward of the star gear system and a second fan section bearing supporting the fan drive shaft and mounted aft of the star gear system, wherein an outer race of the second fan section bearing is fixed relative to an engine static structure, wherein the star gear system includes a sun gear in communication with a fan drive turbine and a ring gear in communication with the fan section; and a low pressure compressor configured to rotate with the fan section to be driven by the fan drive shaft.

US Pat. No. 11,067,004

GAS TURBINE ENGINE FLUID SYSTEM WITH ACCUMULATOR AND HYDRAULIC ACCESSORY


1. A fluid system for a combustion engine, comprising:a first supply line configured for supplying a fluid to a bearing or a gearbox of the engine, the first supply line being a main lubricant supply line of the engine;
a hydraulic accessory actuable by the fluid;
a second supply line fluidly connecting an inlet of the hydraulic accessory to the first supply line, the second supply line connected to the first supply line upstream of the bearing or the gearbox; and
an accumulator including a reservoir having a volume varying between a minimum and a maximum volume and an actuation mechanism biasing the reservoir toward the minimum volume, the reservoir in selective fluid communication with the second supply line upstream of the inlet of the hydraulic accessory;
wherein the hydraulic accessory is a surge control valve of a compressor of the combustion engine, the surge control valve actuatable by the fluid to control an air pressure within the compressor.

US Pat. No. 11,067,003

FLUID COOLING STRUCTURE FOR AN ELECTRIC MACHINE OF A GAS TURBINE ENGINE

General Electric Company,...


1. A gas turbine engine, comprising:a housing circumferentially surrounding an electric machine, wherein the housing supports the electric machine therewithin,
the housing defining a cooling passage proximate to the electric machine, wherein the cooling passage circumferentially surrounds the electric machine and is extended at least partially along a lengthwise direction of the electric machine,
the cooling passage providing from an upstream inlet to a downstream outlet a flow of fluid therethrough,
the upstream inlet being forward of the downstream outlet with respect to a serial flow arrangement of the gas turbine engine, and
the housing defining a primary flowpath in fluid communication with a core engine, the housing defining an inlet of the primary flowpath upstream of the electric machine, wherein the primary flowpath at least partially circumferentially surrounds the electric machine and is disposed outward along a radial direction of the cooling passage, wherein the cooling passage is radially outward of the electric machine between the upstream inlet and the downstream outlet.

US Pat. No. 11,067,002

GAS TURBINE ENGINE MAINTENANCE TOOL

General Electric Company,...


1. A maintenance tool configured for performing maintenance operations within a gas turbine engine, the gas turbine engine defining a core air flowpath and a plurality of inspection holes spaced circumferentially about the gas turbine engine, the maintenance tool comprising:a rail system comprising a plurality of rail segments, the plurality of rail segments configured to be inserted through an individual inspection hole of the plurality of inspection holes of the gas turbine engine for assembly of the rail system within the core air flowpath, wherein each of the plurality of rail segments extends lengthwise between a first end and a second end and is connected to an adjacent rail segment of the plurality of rail segments at one of the first end or the second end;
a maintenance head slidable along the plurality of rail segments of the rail system for performing maintenance operations within the core air flowpath, the maintenance head slidably coupled to an exterior of the plurality of rail segments of the rail system; and
a plurality of radial clamps fixed to the rail system at circumferentially spaced locations, the plurality of radial clamps configured to extend through respective holes of the plurality of inspection holes while fixed to the rail system.

US Pat. No. 11,067,001

TURBINE ENGINE WITH STARTER MOTOR WITH REVERSIBLE VENTILATION, AND ASSOCIATED COOLING METHOD


1. A helicopter turbine engine, comprising:at least one compressor;
at least one turbine;
a drive shaft of the compressor and of the turbine;
an electric starter motor comprising electronic components and configured to rotate said drive shaft; and
a cooling system configured to cool electronic components of the electric motor, the cooling system comprising a heat sink configured to cool the electronic components and a reversible ventilation wheel driven by the electric motor,
wherein:
the ventilation wheel is configured to generate an air flow in a first direction termed direct direction when the ventilation wheel is rotated in a first direction of rotation, and an air flow in a direction opposite the direct direction, termed opposite direction, when the ventilation wheel is rotated in a second direction of rotation,
the turbine engine further comprises an overrunning clutch configured to transmit the torque generated by the electric motor to the drive shaft when the electric motor rotates according to a first direction of rotation and at a speed at least equal to the speed of the drive shaft when the turbine engine operates and drives the drive shaft, and
the electric motor is configured to, in a first operating mode and in the first direction of rotation, drive, on the one hand, the drive shaft via the overrunning clutch and, on the other hand, the ventilation wheel so as to generate an air flow through the heat sink in the direct direction, in a second operating mode and in the reverse direction of rotation, drive only the ventilation wheel so as to generate an air flow through the heat sink in the opposite direction.

US Pat. No. 11,067,000

HYDRAULICALLY DRIVEN LOCAL PUMP

General Electric Company,...


19. A gas turbine engine defining a radial direction and comprising:a compressor section, a combustion section, and a turbine section arranged in serial flow order;
a casing surrounding the compressor section, the combustion section, and the turbine section;
a first system comprising a first system fluid line, the first system fluid line comprising a first system fluid therein;
a second system comprising a hydraulic motor, the hydraulic motor positioned within the casing and fluidly coupled to the first system fluid line such that a flow of the first system fluid through the first system fluid line drives the hydraulic motor, the second system further comprising a fluid pump and a second system fluid line, the hydraulic motor drivingly coupled to the fluid pump, the fluid pump operable with the second system fluid line for providing a flow of a second system fluid through the second system fluid line during operation; and
a controller configured to determine a condition indicative of a fuel flow to the combustion section of the gas turbine engine and drive the hydraulic motor of the second system of the gas turbine engine in response to the determined condition;
wherein the first system is a fuel delivery system of the gas turbine engine.

US Pat. No. 11,066,999

FUEL COOLED COOLING AIR

Raytheon Technologies Cor...


1. A gas turbine engine comprising:a main compressor section having a downstream most location, and a cooling air tap at a location upstream of the downstream most location to tap cooling air;
a main turbine section, each of said main turbine section and said main compressor section mounted within a housing, and each having rotatable components;
a first heat exchanger connected to said cooling air tap, said first heat exchanger also connected to receive fuel to be supplied to a combustor in said gas turbine engine such that said fuel cools said cooling air in said first heat exchanger;
a boost compressor connected to receive the cooling air downstream of said first heat exchanger and connected to deliver the cooling air to at least one first rotatable component of the rotatable components in at least one of said compressor section and said turbine section;
a high pressure tap for tapping air downstream of said downstream most location as power air, said high pressure tap being connected to provide said power air across a first boost turbine, said first boost turbine configured to expand the power air;
a second boost turbine connected by a first line to receive and expand a first portion of air from said first boost turbine and configured to drive said boost compressor; and
a second line connected to receive a second portion of air from said first boost turbine and configured to deliver the second portion of air downstream of said first boost turbine to a second rotatable component of the rotatable components.

US Pat. No. 11,066,998

COMPRESSOR ROTOR, COMPRESSOR AND GAS TURBINE

MITSUBISHI HEAVY INDUSTRI...


1. A compressor rotor, comprising:a rotor main body extending in an axial direction;
a plurality of blades formed on an outer circumference of the rotor main body at intervals in a circumferential direction and configured to feed a fluid with pressure by rotating about an axis together with the rotor main body;
a first outer cavity formed in the rotor main body and into which air on a high-pressure side of the blades is to be introduced;
a first inner cavity formed in the rotor main body on an inner side in a radial direction of the first outer cavity;
a first communication passage which connects the first outer cavity and the first inner cavity to each other in the radial direction of the first outer cavity;
a second outer cavity formed in the rotor main body on a low-pressure side in the axial direction from the first outer cavity;
a second inner cavity formed in the rotor main body on an inner side in a radial direction of the second outer cavity;
a second communication passage which connects the second outer cavity and the second inner cavity to each other in the radial direction of the second outer cavity; and
an axial flow passage which connects the first inner cavity and the second inner cavity to each other in the axial direction,
wherein, along an entire length of the first communication passage from the first outer cavity to the first inner cavity, the first communication passage is inclined toward a forward side of a rotation direction of the rotor main body.

US Pat. No. 11,066,997

FLUID CIRCUIT IN A TURBINE ENGINE

Safran Aircraft Engines, ...


1. An assembly for a turbine engine, comprising an oil circuit including an air/oil heat exchanger, a primary bypass pipe connecting an intake of the air/oil heat exchanger to an outlet of the air/oil heat exchanger and surrounding the air/oil heat exchanger so as to exchange heat with the air/oil heat exchanger and a secondary bypass pipe of the primary bypass pipe connecting an upstream end of the primary bypass pipe to a downstream end of the primary bypass pipe, the oil circuit also comprising at least one valve for controlling the passage of a flow of oil into the primary and secondary bypass pipes and means for controlling the opening of said at least one valve for a temperature lower than a threshold temperature, said secondary bypass pipe) having a length at least ten times shorter than a length of the primary bypass pipe.

US Pat. No. 11,066,996

GAS TURBINE ENGINE WITH INERTIAL PARTICLE SEPARATOR


1. An inertial particle separator configured for communicating with an engine inlet of an aircraft engine having an axis, the inertial particle separator comprising:a main duct having an inlet fluidly connected to an environment outside of the aircraft engine and an outlet configured for being fluidly connected to the engine inlet, the main duct having a first side facing away from the axis and a second side opposed to the first side and facing toward the axis, the inlet for receiving an airflow from the environment along a first direction;
a bypass duct stemming from the main duct between the inlet and the outlet, the bypass duct being fluidly connected to the main duct; and
a splitter defined by an intersection of the main duct and the bypass duct, the splitter having a leading edge,
wherein the second side of the main duct at the inlet extends from the inlet along a second direction defining an angle (?) of at most 45 degrees with the first direction,
wherein, the main duct has a radially outward-most section between the inlet and the splitter, the radially-outward most section having a height (H1) extending from the first side to the second side and a width (W1), wherein W1/H1?0.5, the second side of the main duct free of a step at the radially-outward-most section,
wherein a length (G1) from the second side to the first side and from the radially-outward most section along a direction parallel to the second direction is at least as great as the height (H1) of the main duct at the radially outward-most section,
wherein a height (H2) of the main duct from the leading edge of the splitter and the second side of the main duct is at most four times the height (H1) of the main duct at the radially outward-most section, and
wherein a height (S1) of the bypass duct from the first side at an end of the length (G1) to the leading edge is at least 20% of the height (H1) of the main duct at the radially outward-most section.

US Pat. No. 11,066,995

GAS TURBINE WITH OIL WARMING ANTI-ICE CIRCUIT

Raytheon Technologies Cor...


1. A gas turbine engine comprising:an airflow path;
a tank including oil;
an oil conduit in fluid communication with the tank;
a first outer strut in fluid communication with the oil conduit;
a splitter nose in fluid communication with the first outer strut;
a second outer strut in fluid communication with the splitter nose; and
a shroud in fluid communication with the second outer strut and the tank;
wherein the splitter nose is configured to divide the airflow path into a scavenge stream path and a core stream path;
wherein, during operation of the gas turbine engine, the oil flows sequentially from the tank through the oil conduit through the first outer strut though the splitter nose though the second outer strut through the shroud then returns to the tank;
wherein at least one surface of each of the first outer strut, the splitter nose, the second outer strut, and the shroud is configured to be warmed by the oil.

US Pat. No. 11,066,994

ASSEMBLY COMPRISING TWO JUXTAPOSED ACOUSTIC PANELS IN WHICH THE PANELS COMPRISE A RESISTIVE FACE WHICH EXTENDS AS FAR AS AN END WALL

Airbus Operations (S.A.S....


1. An assembly comprising:a first acoustic panel and a second acoustic panel which are juxtaposed, a first edge of the first acoustic panel, formed by a first end wall, being joined to a second edge of the second acoustic panel, formed by a second end wall;
the first acoustic panel comprising a first resistive face, which comprises perforations, and the second acoustic panel comprising a second resistive face, the first resistive face and the second resistive face being in continuation of one another;
wherein, with the first edge being hollow, the first resistive face extends as far as the first end wall;
wherein the first end wall is in contact with the second end wall in the region of the first resistive face and of the second resistive face;
wherein the perforations in the first resistive face are situated in a vicinity of the first end wall and open into an end cavity situated in the hollow first edge; and
wherein a connecting piece is interposed between the first end wall and the second end wall over a part of the respective length thereof from a first back skin of the first acoustic panel and a second back skin of the second acoustic panel, so that the connecting piece does not extend as far as the first and second resistive faces.

US Pat. No. 11,066,993

VARIABLE GEOMETRY INLET SYSTEM


1. A turbofan aeroengine comprisinga fan and compressor section, a combustion section, a turbine section and a nacelle surrounding at least the fan and compressor section,
the nacelle including a main portion in a stationary relationship with the aeroengine,
the main portion having an annular outer skin and an inner barrel radially spaced apart from each other relative to a main engine axis,
the nacelle including an inlet cowl disposed upstream of the main portion with respect to an air flow entering the nacelle through a front opening defined by an annular lip portion of the inlet cowl,
the lip portion being affixed to an annular outer skin of the inlet cowl, and
each of a plurality of circumferentially distributed plates being pivotally connected at a respective front edge thereof to the lip portion to form an annular inner wall radially spaced apart from the outer skin of the inlet cowl relative to the main engine axis, each of the plurality of circumferentially distributed plates comprising a rear edge opposite to the respective front edge of the respective plate,
the annular inner wall being in a variable truncated conical profile having a fixed diameter at the front edges of the plurality of circumferentially distributed plates and a variable diameter at the rear edges of the plurality of circumferentially distributed plates,
the inlet cowl being operatively connected to the main portion and being axially translatable between a retracted position in which the outer skins of the respective inlet cowl and main portion of the nacelle are immediately axially adjacent each other with the inner barrel of the main portion being partially inserted radially inward of the annular inner wall of the inlet cowl relative to the main engine axis, and
an extended position in which the outer skins of the respective inlet cowl and the main portion of the nacelle are positioned axially spaced apart from each other with the inner barrel of the main portion being partially inserted radially inward of the annular inner wall of the inlet cowl less than the insertion in the retracted position,
the annular inner wall of the inlet cowl and the inner barrel of the main portion thereby forming a length-variable inlet duct for directing the air flow.

US Pat. No. 11,066,992

AIRCRAFT PROPULSION ASSEMBLY COMPRISING A COLD BLEED AIR INTAKE DEVICE WITH VARIABLE AERODYNAMIC PROFILE

AIRBUS OPERATIONS SAS, T...


1. A propulsion assembly for an aircraft comprising a pylon configured to attach under a wing of the aircraft, and a bypass turbomachine, said turbomachine comprising:an engine fixed to the pylon and configured to drive a rotation of a fan;
an annular interduct concentric with the engine;
a nacelle concentric with the interduct, the interduct and the nacelle between them defining a fan duct in which an air flow flows when the fan is turning;
two forks connecting the engine to the nacelle and passing across the fan duct;
an air intake system comprising an air circuit having a cold air bleed device arranged at a level of a cutout made in either the nacelle or the interduct or one of the two forks,the cold air bleed device comprising a scoop mounted with an ability to slide in a chassis extending in a continuation of edges of the cutout and a scoop actuating device, the scoop being configured to move between a first open position in which the scoop extends at least in part into the fan duct and in which some of the air flow in the fan duct rushes into the scoop, and a second closed position in which the scoop is confined in the chassis and does not extend into the fan duct.


US Pat. No. 11,066,991

CONSTANT-VOLUME COMBUSTION (CVC) CHAMBER FOR AN AIRCRAFT TURBINE ENGINE INCLUDING AN INTAKE/EXHAUST VALVE HAVING A SPHERICAL PLUG

Safran Aircraft Engines, ...


1. A constant-volume combustion chamber for an aircraft turbine engine, the combustion chamber comprising:a compressed gas intake valve configured to adopt an open position and a closed position, in the closed position blocking intake of compressed gas into the combustion chamber; and
a combusted gas exhaust valve configured to adopt an open position and a closed position, in the closed position blocking exhaust of combusted gas outside the combustion chamber;
wherein at least one of the compressed gas intake valve and the combusted gas exhaust valve comprises a spherical plug including an inner spherical body including two mutually distant orifices traversed by a gas passage,
wherein the combusted gas exhaust valve includes a fixed body forming a seat for the inner spherical body of the spherical plug, in the open position the two mutually distant orifices of the inner spherical body align with a respective two mutually distant orifices of the fixed body to allow exhaust of combusted gas outside the combustion chamber, the fixed body further including a body passage passing through the fixed body,
wherein the combustion chamber further comprises a conduit connected to the body passage and to a sidewall of another combustion chamber, and
wherein the inner spherical body of the spherical plug of the combusted gas exhaust valve is rotated to the closed position in which the gas passage communicates with the body passage to enable the combusted gases trapped in the gas passage to be injected through the body passage towards the another combustion chamber via the conduit.

US Pat. No. 11,066,990

CONSTANT-VOLUME COMBUSTION MODULE FOR A TURBINE ENGINE, COMPRISING COMMUNICATION-BASED IGNITION

SAFRAN, Paris (FR)


1. A combustion module of a turbine engine, configured to implement constant-volume combustion, having at least two combustion chambers, each chamber comprising an intake port for compressed gas and an exhaust port for burnt gas, said intake ports and exhaust ports of the at least two combustion chambers being opened or closed by common respective intake/exhaust valves and an ignition means that triggers combustion in the combustion chamber,the chambers being arranged around an axis, the module having at least one duct that can put a first combustion chamber into communication with at least one second combustion chamber in order to inject burnt gases from the first combustion chamber into said at least one second combustion chamber so as to trigger combustion in said at least one second combustion chamber,
wherein the combustion module has an obturator for opening/closing the at least one duct capable of selectively allowing burnt gases to pass from the first combustion chamber to said second combustion chamber, wherein the intake/exhaust ports of the combustion chambers are configured so that the intake/exhaust ports are opened or closed by common respective intake/exhaust valves that are synchronised and fitted rotatably around said axis, said valves cooperating with a radial opening that is formed in a wall shaped as a cylinder portion of the combustion chamber turned towards the axis, each corresponding rotary intake or exhaust valve having a tubular element, of a diameter corresponding to said cylinder portion fitted rotatably coaxially with said cylinder portion, said tubular element having a bore allowing the intake/exhaust gases to be routed, and at least one radial slot, arranged substantially in an axial plane of the radial opening of said port, and which is able to obturate or free said radial opening during the rotation of said tubular element and in that at least one of the rotary valves has on a periphery of said at least one of the rotary valves a throat portion that extends over a predetermined angular sector of the periphery of the rotary valve, said throat portion determining the at least one duct that is intended to put into communication the first combustion chamber and the at least one second combustion chamber adjacent to said first chamber, in an angular position of said rotary valve corresponding to an end of combustion in the first chamber prior to a discharge of the burnt gases and an end of filling of the second chamber prior to combustion, the rotary valve forming the obturator depending on its angular position.

US Pat. No. 11,066,989

GAS TURBINE ENGINE ARCHITECTURE WITH NESTED CONCENTRIC COMBUSTOR

Raytheon Technologies Cor...


1. A gas turbine engine, comprising:an outer annular combustor;
an inner annular combustor radially inboard of said outer annular combustor;
an outer variable turbine vane array downstream of said outer annular combustor;
an inner variable turbine vane array downstream of said inner annular combustor; and
an intermediate turbine rotor downstream of said outer variable turbine vane array and said inner variable turbine vane array.

US Pat. No. 11,066,988

LENGTH-ADJUSTABLE CONNECTING ROD WITH CONTROL DEVICE

AVL List GmbH, Graz (AT)...


1. A length-adjustable connecting rod for a reciprocating piston engine, comprising: a hydraulic length-adjusting apparatus for adjusting an effective connecting rod length of the connecting rod; a control device switchable between at least two switching states for controlling a lengthwise adjustment of the connecting rod; wherein the hydraulic length-adjusting apparatus comprises a hydraulic cylinder with a piston, a first hydraulic working chamber, and a second hydraulic working chamber; wherein the control device comprises a first valve and a second valve; wherein the first valve of the control device is in fluid communication with the first hydraulic working chamber of the hydraulic length-adjusting apparatus, and the second valve of the control device is in fluid communication with the second hydraulic working chamber of the hydraulic length-adjusting apparatus; wherein the first valve can be actuated by means of a first hydraulically actuatable adjusting piston configured to move axially along a first adjusting axis and the second valve can be actuated by means of a second hydraulically actuatable adjusting piston configured to move axially along a second adjusting axis; wherein the first adjusting axis of the first valve of the control device differs from the second adjusting axis of the second valve of the control device; wherein at least one of the first adjusting axis of the first valve of the control device and the second adjusting axis of the second valve of the control device run parallel to a crankshaft axis with respect to a functional installed state of the connecting rod in the reciprocating piston engine; and wherein in a first switching state of the control device, a hydraulic medium return flow from the first hydraulic working chamber of the hydraulic length-adjusting apparatus is blocked and the second working chamber of the hydraulic length-adjusting apparatus is drained.

US Pat. No. 11,066,987

METHOD FOR OPERATING A RECIPROCATING PISTON MACHINE HAVING AT LEAST ONE PISTON ROD THAT IS HYDRAULICALLY ADJUSTABLE IN LENGTH

AVL LIST GMBH, Graz (AT)...


1. A method for operating a reciprocating piston machine, the method comprising:providing the reciprocating piston machine having a piston rod that is hydraulically adjustable in length for setting a compression ratio, wherein the piston rod comprises a piston and a hydraulic cylinder for adjusting the length of the piston rod, wherein the piston together with the hydraulic cylinder delimit a first working chamber and a second working chamber, the first working chamber and the second working chamber housed within the same hydraulic cylinder,
using a first fill level of the first working chamber and a second fill level of the second working chamber to enable at least two switching positions of the piston rod, oppositely filling and emptying the first and second working chambers in turn respectively, and
independent of the setting of the compression ratio, at least partially filling and emptying at least one of the first and second working chambers as a function of at least one first predetermined condition in order to effect an at least partial exchange of a hydraulic medium in at least one of the first and second working chambers actuated by means of switching an outflow of the first working chamber and the second working chamber.