US Pat. No. 10,968,928

FILM FOR INCREASING FRICTION BETWEEN TWO FRICTIONALLY CONNECTED COMPONENTS

Bayerische Motoren Werke ...

1. A film for arranging and increasing a friction between two frictionally joined components, comprising:a load-bearing matrix; and
a plurality of hard particles arranged in the matrix,
wherein the hard particles are not bound by way of a binder to the matrix,
wherein at least one side of the film has a self-adhesive layer for adhesive bonding onto one of the two components, and wherein the self-adhesive layer is covered with a covering film.

US Pat. No. 10,968,927

HYDRAULIC VALVE ASSEMBLY WITH AUTOMATED TUNING

EATON INTELLIGENT POWER L...

1. A hydraulic valve assembly comprising:a valve body housing a spool, the valve body defining a bore in which the spool is positioned, the valve body having one or more ports in fluid communication with the bore for connecting the valve body to an actuator;
a connector to connect the hydraulic valve to an external computing device; and
an upper level controller and a lower level controller integrated with the hydraulic valve, the upper level controller including at least one processing device, and at least one computer readable data storage device configured to receive user specified parameter inputs and raw command inputs, the at least one computer readable data storage device storing instructions, when executed by the at least one processing device, cause the hydraulic valve to:
convert the raw command inputs into shaped command inputs using a shaping algorithm;
use the lower level controller to move the spool inside the valve body based on the shaped command input, and determine an error of the spool as a difference between target set points of the shaped command input and measurements of the actuator;
determine a flow demand to obtain a target single port pressure or a target delta pressure based on the target set points of the shaped command input, the flow demand determined using port pressure measurements inside the valve body;
use a valve database stored in the at least one computer readable data storage device to determine a spool correction command based on the determined flow demand; and
send the spool correction command to the upper level controller to adjust the movement of the spool to reduce the determined error of the spool.

US Pat. No. 10,968,926

FLUID PRESSURE DEVICE AND METHOD FOR MANUFACTURING SAME

SMC CORPORATION, Chiyoda...

1. A method for producing a fluid pressure device that includes a tubular body having a piston chamber inside, a covering member that is attached to an end of the body, and a piston that is provided in a displaceable manner along the piston chamber, the method comprising the steps of:inserting the covering member into an opening at the end of the tubular body; and
plastically deforming the end of the tubular body, creating a deformed portion that bulges into the opening in a radially inward direction of the tubular body, by pressing the end of the tubular body in an axial direction of the tubular body with a machining portion provided at an end face of a jig, the end face having a tapered surface extending to a center axis of the jig,
wherein the tapered surface at the end of the jig is tapered to be recessed away from the covering member in an axial direction of the jig when plastically deforming the end of the tubular body, to increase a distance of the tapered surface away from the covering member as viewed in a direction toward the axis of the jig, and
wherein the deformed portion is deformed sufficiently that it covers an outer edge of the covering member and thereby provides an airtight seal for the piston chamber.

US Pat. No. 10,968,925

GAS CYLINDER

TOKYO ELECTRON LIMITED, ...

10. A method of operating a gas cylinder including a cylinder, a piston rod having one end enclosed within the cylinder and a remaining end protruding from the cylinder, a piston provided at the one end of the piston rod and configured to move the piston rod by moving inside the cylinder, the method comprising:in a first mode, supplying a compressed gas into a first space, from an air supplier through a first valve, the first space being a space in the cylinder on a side of the piston rod with respect to the piston, and sucking gas from an interior of a second space, through a second valve to a vacuum pump, the second space being a space in the cylinder opposite to the first space with respect to the piston at the same time, thereby pressing out the piston rod; and
in a second mode, supplying the compressed gas into the second space through the second valve from the air supplier, and sucking gas from an interior of the first space through the first valve to the vacuum pump at the same time, thereby pulling back the piston rod,
wherein the first valve is not directly connected to the second valve.

US Pat. No. 10,968,924

FLUID VALVE ASSEMBLY, PROCESS VALVE POSITIONER AND USE OF A FLUID VALVE ASSEMBLY IN CONTROL OF A PROCESS VALVE

NELES FINLAND OY, Vantaa...

1. A fluid valve assembly for connection to a supply of fluid under pressure for providing an actuator with an actuator fluid pressure, the fluid valve assembly comprising:a valve body with a central bore, the central bore comprising: a supply pressure chamber connected to a supply pressure input line for receiving a supply of fluid under pressure; an actuator chamber connected to an actuator pressure line for providing a control fluid pressure to an actuator; and an exhaust chamber connected to a pressure exhaust line for venting the control fluid pressure from the actuator chamber;
a stem axially-movable within said central bore and actuated by an axial pilot force and an axial counter force affecting on the stem;
a metering edge and a counteracting metering edge arranged coaxially with and controlled by the stem and arranged to control fluid flow from the supply pressure chamber to the actuator chamber and from the actuator chamber to the exhaust chamber, respectively;
a seal member arranged coaxially with the stem to divide the supply pressure chamber into an outer supply pressure chamber and an inner supply pressure chamber,
the inner supply pressure chamber being arranged to actuate the stem by the supply pressure providing the axial counter force affecting on the stem within the inner supply pressure chamber, and the outer supply pressure chamber being connected to the supply pressure input line and arranged to feed the actuator chamber; and
a flow restrictor element arranged in a supply pressure flow path between the inner supply pressure chamber and the outer supply pressure chamber and configured to restrict rapid changes in the supply pressure in the inner chamber, the flow restrictor element being configured to prevent propagation of rapid changes of the supply pressure from the outer supply pressure chamber through the supply pressure flow path to the inner supply pressure chamber and to thereby prevent uncontrolled axial movements of the stem.

US Pat. No. 10,968,923

HYDRAULIC SYSTEM FOR WORKING MACHINE AND CONTROL VALVE

KUBOTA CORPORATION, Osak...

1. A hydraulic system of a working machine comprising:a hydraulic pump to output an operation fluid;
a first hydraulic actuator;
a second hydraulic actuator;
a first control valve to control the first hydraulic actuator, the first control valve including a first input port, a second input port, a first output port, a second output port, a third output port, a first internal fluid tube and a second internal fluid tube;
a second control valve to control the second hydraulic actuator; and
an external fluid tube to connect the first output port and the second output port to the third output port, wherein
the first control valve is switched from a neutral position to a first position or a second position,
the first control valve is configured, at the first position, to allow the operation fluid from the hydraulic pump to flow into the first hydraulic actuator through the first input port, and to allow the operation fluid from the first hydraulic actuator to flow back to the first input port through the first internal fluid tube, the external fluid tube, the third output port and the second internal fluid tube.

US Pat. No. 10,968,922

RADIAL COMPRESSOR

MAN Energy Solutions SE, ...

1. A radial compressor, comprising:a rotor-side impeller;
a stator-side housing, comprising:
a radially outer spiral housing section; and
a radially inner insertion section;
a main flow channel configured to supply a medium to be compressed towards the rotor-side impeller;
a contour wall;
a circulation chamber arranged radially outside of the main flow channel, which is separated from the main flow channel by the contour wall, and which is connected to the main flow channel via a circulation opening in an area of the rotor-side impeller;
struts that extend in the circulation chamber and connect the circulation chamber to the insertion section;
a first segment of the insertion section delimits the main flow channel downstream from the contour wall, the main flow channel is delimited by the contour wall upstream of the first segment, wherein the upstream end of the first segment is configured to deform into the circulation chamber upon failure of rotor-side impeller;
a second segment of the insertion section at which the struts engage;
a downstream end of the first segment of the insertion section engages with the second segment of the insertion section;
an upstream end of the first segment of the insertion section protrudes freely towards the contour wall;
wherein viewed in a meridian section, the first segment of the insertion section has an approximately constant thickness with a thickness deviation of maximally 5% across its extension between the downstream end and the upstream end.

US Pat. No. 10,968,921

BLOWER FAN

LG ELECTRONICS INC., Seo...

1. A blower fan comprising:a hub;
a plurality of blades spaced apart an asymmetric distance from one another about the hub; and
a balancer connected to the hub to balance the blades,
wherein the hub comprises,
a circular main plate,
a circumferential surface surrounding a circumference of the main plate to be connected to the blades,
a hub axis disposed in the circumferential surface, one end of the hub axis connected to a central part of the main plate, and
a plurality of ribs radially disposed to be connected to the circumferential surface,
wherein the balancer has a half cylindrical shape, protrudes from an inner surface of the circumferential surface to a rotational axis (C) of the hub, and is disposed between two ribs among a plurality of ribs, the balancer being integrally molded with the hub,
wherein the balancer is disposed such that a center of mass of the blower fan is positioned at a rotational axis (C) of the hub, and
wherein the plurality of blades is disposed such that the balancer does not interfere with the plurality of ribs,
wherein the plurality of blades are disposed such that at least two adjacent included angles, among a plurality of included angles each of which is an angle between reference lines from respective centers of mass of the plurality of blades toward a rotational axis (C) of the hub, are different from each other,
wherein the balancer is disposed at a side of the hub between the plurality of blades which have the largest included angle among the plurality of included angles,
wherein the plurality of blades comprise only three blades, the three blades including a first blade having a first center of mass, a second blade having a second center of mass, and a third blade having a third center of mass,
wherein the balancer is disposed such that a sum of a plurality of centripetal force vectors generated from the center of mass of each blade to the rotational axis (C) and a plurality of centripetal force vectors generated from the center of mass of the balancer to the rotational axis (C) is zero when the blower fan is rotated,
wherein the first blade, the second blade, and the third blade are each connected to the hub and spaced apart an asymmetric distance from one another,
wherein there is a first reference line from the first center of mass to a rotational axis (C) of the hub, a second reference line from the second center of mass to the rotational axis (C) of the hub, and a third reference line from the third center of mass to the rotational axis (C) of the hub,
wherein at least two of a first included angle a1 between the first reference line and the second reference line, a second included angle between the second reference line and the third reference line, and a third included angle between the first reference line and the third reference line are different from each other,
wherein the balancer is disposed such that a center of mass of the blower fan is positioned at the rotational axis (C) of the hub,
wherein the first included angle is 120 degrees, the second included angle is 130 degrees, and the third included angle is 110 degrees, and
wherein the balancer is disposed between the second blade and the third blade.

US Pat. No. 10,968,920

MOTOR MOUNT FOR HVAC SYSTEM

Johnson Controls Technolo...

1. An adjustable mounting assembly for a fan motor, comprising:a frame defining a space configured to receive the fan motor, wherein the frame is configured to mount to a heating, ventilation, and/or air conditioning (HVAC) unit;
a fixed nut coupled to the frame; and
a bolt extending through the fixed nut and into the space, wherein the bolt is adjustable relative to the fixed nut to adjust a position of the fan motor within the space.

US Pat. No. 10,968,919

TWO-STAGE CENTRIFUGAL COMPRESSOR

Carrier Corporation, Pal...

1. A compressor (22) comprising:a housing (50);
a shaft (70);
a plurality of bearings (66, 67, 68, 74, 76) mounting the shaft to the housing for relative rotation about an axis (500);
a motor (52), having:
a rotor (64) mounted on the shaft; and
a stator (62);
a first impeller (54A) mounted the shaft to a first side of the motor; and
a second impeller (54B) mounted the shaft to a second side of the motor,wherein:the first impeller is an open impeller;
the second impeller is a shrouded impeller; and
the plurality of bearings comprises a magnetic thrust bearing (68).

US Pat. No. 10,968,918

WEAR RINGS FOR ELECTRIC SUBMERSIBLE PUMP STAGES

SCHLUMBERGER TECHNOLOGY C...

1. A multistage electric submersible pump, comprising:a plurality of pump stages, at least one pump stage comprising:
an impeller;
a diffuser;
a high-hardness wear ring associated with a running clearance seal between a part of the impeller and a part of the diffuser of the pump stage;
an elastic mounting system for the high-hardness wear ring for minimizing a stress or a breakage of the high-hardness wear ring, wherein the elastic mounting system accommodates a relative thermal expansion and contraction between the high-hardness wear ring and a mating surface of a stage part, and wherein the elastic mounting system is at least partially disposed radially between the high-hardness wear ring and the part of the impeller, wherein the mounting system comprises an elastic member to cushion an impact between the high-hardness wear ring and the mating surface of the stage part, the elastic member comprising two elastic rings, wherein the elastic member maintains a tension between the high-hardness wear ring and the mating surface that limits an expansive force on the high-hardness wear ring while preventing looseness between the high-hardness wear ring and the mating surface; and
an equalization hole in the wear ring or in the stage part between the two elastic rings to relieve a pressure between the two elastic rings.

US Pat. No. 10,968,917

BLOWER COMPRISING A PRESSURE MEASURING CONNECTOR

ZHONGSHAN BROAD-OCEAN MOT...

1. A blower comprising:a scroll casing;
a fan impeller;
a motor; and
a pressure measuring connector;whereinthe scroll casing comprises a chamber, an air inlet, and an air outlet; the air inlet and the air outlet communicate with the chamber;
the motor is disposed on the scroll casing; a drive end of the motor is inserted into the chamber and is connected to the fan impeller;
the pressure measuring connector is disposed on the scroll casing; a channel is disposed in the pressure measuring connector, and the channel communicates with the chamber; and
the channel comprises a first subchannel and a second subchannel; the first subchannel communicates with the second subchannel, and an inner diameter of the first subchannel is larger than an inner diameter of the second subchannel; the first subchannel is disposed at an outer side of the scroll casing, and the second subchannel is disposed within the chamber of the scroll casing;
the channel communicates with air at the outer side of the scroll casing; and
when the fan impeller is driven to rotate by the motor, the chamber of the scroll casing has a pressure lower than the pressure at the outer side of the scroll casing, whereby the channel conveys air unidirectionally from the outer side of the scroll casing through the first subchannel to the second subchannel and into the chamber of the scroll casing.

US Pat. No. 10,968,916

SEAL ARRANGEMENT FOR SUPERCHARGERS

SUPERTURBO TECHNOLOGIES, ...

1. A supercharger comprising:a shaft;
a compressor attached to said shaft;
a mechanical speed step-down transmission that transfers power to and from said shaft;
a ring located around said shaft and between said mechanical speed step-down transmission and said compressor, and adjacent to said compressor, said ring being driven by said mechanical speed step-down transmission wherein said ring rotates at a lower speed than, and in a same direction as, said shaft;
a first seal located between said ring and a housing of said supercharger;
a second seal located between said shaft and said ring;
wherein said first seal and said second seal stop fluid flow between said compressor and said mechanical speed step-down transmission.

US Pat. No. 10,968,915

HIGH-VACUUM PUMP

Agilent Technologies, Inc...

1. A vacuum pump, comprising:a vacuum-tight casing;
a suction port;
a discharge port; and
a pumping stage configured for pumping a gas from the suction port to the discharge port and comprising a plurality of pumping elements that cooperate with each other for pumping the gas through the pumping stage, the pumping elements comprising:
a stator element, stationary and fastened to the casing; and
a rotor element mounted integral with a rotating shaft, and the rotating shaft configured to rotate about an axis thereof,
wherein
the pumping stage is selected from the group consisting of a turbomolecular pumping stage and a molecular drag pumping stage,
the rotor element is made of an injection moulded plastic material charged with reinforcing short fibres, and
the reinforcing short fibres are dispersed in a chaotic and random manner inside the plastic material.

US Pat. No. 10,968,914

METHODS AND APPARATUS FOR PROVIDING ESP STAGE SEQUENTIAL ENGAGEMENT

SAUDI ARABIAN OIL COMPANY...

1. An electric submersible pump system for providing artificial lift, the system comprising:a motor;
a pump assembly;
a seal assembly located axially between the motor and the pump assembly; and
a shaft assembly extending along a central axis from the motor to the pump assembly; wherein
the pump assembly includes two or more pump sections and a respective coupling is located between each respective pair of the two or more pump sections;
the shaft assembly includes pairs of shaft segments, each respective coupling located at facing ends of each respective pair of shaft segments; and
each coupling has a transmission mechanism moveable between a disengaged position where the coupling prevents transmission of a rotation of one shaft segment to an adjacent shaft segment, and an engaged position where the coupling conveys the rotation of the one shaft segment to the adjacent shaft segment; where
the transmission mechanism includes a synchromesh clutch assembly and wherein the transmission mechanism is operable to move from the disengaged position to the engaged position inertially by bringing a speed of rotation of the adjacent shaft segment up to a speed of the one shaft segment with the synchromesh clutch assembly.

US Pat. No. 10,968,913

REFRIGERANT COMPRESSOR SYSTEM

BITZER Kuehlmaschinenbau ...

1. Refrigerant compressor installation, comprising at least three compressors which are arranged in parallel between an intake conduit and a pressure conduit and which each comprises a lubricant sump unit, the compressors, when in operation, work in such a way that the respective pressures in the respective lubricant sump units of the respective compressors form a pressure cascade according to which the compressors have a successively slightly decreasing pressure in the respective lubricant sump unit in a defined cascade sequence, the lubricant sump units are connected to each other in a manner corresponding to the cascade sequence by way of a lubricant conduit system for lubricant transport, and each of the lubricant sump units comprise a port to which is connected an insert element which on the one hand establishes communication with the lubricant conduit system and on the other hand is configured such that it predetermines, for the respective lubricant sump unit, a lubricant level from which lubricant is transported to the lubricant sump unit that follows next in the cascade sequence.

US Pat. No. 10,968,912

SCROLL COMPRESSOR

Mitsubishi Electric Corpo...

1. A scroll compressor comprising:a compression unit including a stationary scroll and an orbiting scroll that are combined to define a compression chamber, the orbiting scroll being driven to compress a fluid in the compression chamber;
a crankshaft configured to drive the orbiting scroll, the crankshaft having an eccentric pin configured to impart a rotational force to the orbiting scroll;
an orbiting bearing configured to support the orbiting scroll; and
a bush having a shaft part disposed between the orbiting bearing and the eccentric pin of the crankshaft, and a balance weight part secured to an outer periphery of the shaft part,
wherein the shaft part includes a cylindrical body part fitted into the orbiting bearing and into which the eccentric pin of the crankshaft is inserted, and a cylindrical coupling part extending outward from an end portion in an axial direction of the body part and to which the balance weight part is joined,
wherein the bush satisfies requirements including
1.2?D2/D1?1.6, and  (a)
1.0?[(D2?D3)/(D4?D2)]×E1/E2?3.5,  (b)
where
D1 is an outer diameter of the body part,
D2 is an outer diameter of the coupling part,
D3 is an inner diameter of the body part,
D4 is an outer diameter of the balance weight part,
E1 is a Young's modulus of the shaft part, and
E2 is a Young's modulus of the balance weight part.

US Pat. No. 10,968,911

OSCILLATING PISTON-TYPE COMPRESSOR

Daikin Industries, Ltd., ...

1. An oscillating piston compressor comprising:two oscillating compression units, each compression unit having
a cylinder forming a cylinder chamber, a bush hole being formed in the cylinder,
a piston housed in the cylinder chamber, and
a blade integrally formed with the piston, the piston rotating in the cylinder chamber through a rotation angle while the blade oscillates within the bush hole, and the rotation angle being zero degrees when the piston is nearest the bush hole; and
an introduction port configured to introduce a refrigerant into a compression chamber of each of the compression units,
the two compression units being configured such that phases of the pistons are opposite to each other,
each of the pistons having a non-circular outer peripheral surface, and each of the cylinder chambers having an inner peripheral surface with a shape determined based on an envelope of the outer peripheral surface of the respective piston in rotation,
when a compression stroke in each of the compression units is ended at a rotation angle ?2 under an operating condition in which the introduction port introduces no refrigerant into the cylinder chamber, the outer peripheral surface of the piston is shaped such that a volume change rate of the compression chamber is not decreased in a range from a rotation angle ?1 to the rotation angle ?2, and
the rotation angle ?1 is smaller than the rotation angle ?2 by a predetermined angle, and
the outer peripheral surface of the piston being shaped such that the volume change rate of the compression chamber is increased in the range.

US Pat. No. 10,968,910

INLET PORT CONFIGURATION FOR ROOTS-TYPE SUPERCHARGER

Magnuson Products, LLC, ...

1. A supercharger for supplying increased air flow to an engine, comprising twisted meshing rotors arranged to be coupled to the engine and rotated thereby, the rotors being mounted for rotation within a housing with the rotor outer surfaces in sealing contact with the housing and the rotor end surfaces in sealing contact with end walls of the housing, the housing having an inlet port to admit air between the meshing rotors during an angular portion of the rotor's rotation and an outlet port to expel air to the engine from the meshing rotors during another angular portion of the rotor's rotation, the rotors having mesh points where the rotors contact one another and spaces between the meshing rotors to accept a volume of air from the inlet port and propel it to the outlet port as the rotors are rotated and the mesh points travel axially from the inlet to the outlet, the housing, rotors and inlet port defining an angular portion of the rotors' rotation known as the seal transfer angle which is greater than or equal to zero degrees when the inlet port is closed and the volume of air between rotors is sealed and has no leakage path, wherein:the housing, rotors and inlet port are configured to have a negative seal transfer angle that prevents the volume of air between rotors from being sealed and creates, for an angular portion of the rotors' rotation, an air leakage path through the inlet port and the space between rotors, for improved supercharger performance.

US Pat. No. 10,968,909

PUMP COMPRISING A PROXIMITY SENSOR

Edwards Limited, Burgess...

1. A pump comprising:a stator which defines an internal chamber in which a rotor is rotationally mounted;
a processing circuit; and
a sensor mounted to the stator and connected to the processing circuit, the processing circuit being configured to:
analyse an output of the sensor to determine an absolute distance between a point on a surface of the rotor and the sensor;
store a value representative of the absolute distance for successive cycles of the rotor; and
analyse the stored values to determine at least one of:
a rate at which the absolute distance is deviating from a predetermined value; or
a fluctuation or cycle in the absolute distance; and
output a warning that the rate, fluctuation, or cycle has exceeded a predetermined level.

US Pat. No. 10,968,908

SCROLL FLUID MACHINE, AND METHOD FOR PROCESSING SCROLL MEMBER

MITSUBISHI HEAVY INDUSTRI...

6. A method for processing a scroll member including an end plate, a spiral wall provided on the end plate,wherein a wall flat portion is provided each on an outermost peripheral portion and an innermost peripheral portion of the spiral wall, the wall flat portion having a height which is not changed, and an end plate flat portion is provided on the end plate so as to correspond to each of the wall flat portion,
wherein a wall inclined portion is provided over a region between the wall flat portion provided on the outermost peripheral portion and the wall flat portion provided on the innermost peripheral portion, the wall inclined portion having a height which continuously decreases from an outer peripheral side toward an inner peripheral side thereof, and
wherein an end plate inclined portion is provided over a region between the end plate flat portion provided on the outermost peripheral portion and the end plate flat portion provided on the innermost peripheral portion, the end plate inclined portion having a tooth bottom surface which faces a tooth tip of the wall inclined portion and is inclined according to an inclination of the wall inclined portion,
the method comprising:
a first peripheral wall surface processing step of processing one peripheral wall surface of the spiral wall and a tooth bottom adjacent the one peripheral wall surface;
a second peripheral wall surface processing step of processing the other peripheral wall surface of the spiral wall and a tooth bottom adjacent to the other peripheral wall surface; and
a tooth bottom processing step of processing only a tooth bottom between the one peripheral wall surface and the other peripheral wall surface.

US Pat. No. 10,968,907

LINEAR COMPRESSOR

LG Electronics Inc. and I...

1. A linear compressor comprising:a cylinder that defines a compression chamber configured to accommodate refrigerant, the cylinder comprising a cylinder nozzle configured to receive refrigerant;
a piston provided in the cylinder and configured to be pressed by refrigerant in the cylinder, the piston comprising:
a piston body configured to move forward and backward within the cylinder,
a piston front part located on a front surface of the piston body, the piston front part comprising a suction port through which refrigerant is supplied into the compression chamber, and
a refrigerant collection part that is recessed from an outer circumferential surface of the piston front part that extends to a front surface of the piston front part; and
a suction valve provided at a front side of the piston front part and configured to open and close the suction port,
wherein the refrigerant collection part is in communication with the compression chamber and configured to receive and store at least a portion of refrigerant provided from the compression chamber (i) along the outer circumferential surface of the piston front part and (ii) through the cylinder nozzle to reduce force acting on the piston,
wherein the refrigerant collection part defines a path from the outer circumferential surface of the piston front part to the front surface of the piston front part, the path comprising:
an inflow part defined at the outer circumferential surface of the piston front part, and
a discharge part defined at the front surface of the piston front part and configured to be closed by the suction valve, and
wherein the suction valve is configured to open and close the suction port and the discharge part together.

US Pat. No. 10,968,906

COMPRESSOR FOR DISCHARGING A MEDIUM

ILLINOIS TOOL WORKS INC.,...

1. A compressor for discharging a tire sealant from a container into a tire, said compressor comprising a motor (1) that drives a step-up transmission wheel (3) which in turn drives an output wheel (4) for moving at least one piston (6-6.6) between a compression stroke and an intake stroke in a compression chamber (7), sucking in air during the intake stroke and forcing air and tire sealant from the container during the compression stroke, the step-up transmission wheel (3) being two entirely toothed wheels (11, 12) lying on each other, a first (12) of the two entirely toothed wheels having a smaller diameter than a second (11) of the two entirely toothed wheels, and the output wheel (4) being two partially toothed wheels (4.1, 4.2) lying on each other, a first (4.2) of the partially toothed wheels having a larger diameter than a second (4.1) of the partially toothed wheels, wherein the first entirely toothed wheel (12) is configured to interact with the teeth of the first partially toothed wheel (4.2) during the intake stroke and the second entirely toothed wheel (11) is configured to interact with the teeth of the second partially toothed wheel (4.1) during the compression stroke.

US Pat. No. 10,968,905

PRODUCING COMPRESSED AIR FROM OCEAN WAVES

Reuven Weinberg, Givatay...

1. A system for producing compressed air from ocean waves, comprising:a base for anchoring the system on an ocean floor;
two or more columns extending perpendicularly upward from said base to above an ocean surface;
a platform at an upper end of the columns;
one or more air pumps located on said platform;
a hammer head coupled to the one or more air pumps for producing said compressed air by raising and lowering the hammer head in a predefined motion range;
a float that floats on the ocean surface and is confined by the two or more columns, the base and the platform;
one or more elongated shafts coupled to said float at one end and to said hammer head at another end; wherein the hammer head is adapted to be raised and lowered by the float in the predefined motion range by motion of the ocean waves;
wherein the one or more elongated shafts have a length that is adjustable to keep the hammer head in the predefined motion range and the float on the ocean surface in response to a change in a height of the ocean surface; and
wherein the length of the one or more elongated shafts is adjusted automatically by a controller and a motor.

US Pat. No. 10,968,904

TANDEM MOTOR LINEAR ROD PUMP

Unico, LLC, Franksville,...

1. An oil pumping system comprising:an oil return line configured to carry oil from an oil sump in a pump housing to an oil-filled pinion box in the pump housing;
a top plate attached to a portion of a pinup rod such that the top plate moves up and down in accordance with a reciprocating motion of the pump rod;
a bottom plate located below the top plate
a pump mechanism disposed between the top plate and bottom plate, the pump mechanism comprising:
a valve seat with a bottom portion configured to contact the bottom plate and an upper portion configured to contact the top plate;
a first biasing element configured to urge the valve seat upward away from the bottom plate;
a plunger configured to seat within the upper portion of the valve seat creating a seal there between; and
a second biasing element configured to urge the plunger upward away from the valve seat;
wherein upward movement of the pump rod and attached top plate allows oil to flow into an interior portion of the pump mechanism in fluid communication with the oil return line, and downward movement of the pump rod and attached top plate causes the plunger to seat within the valve seat, and causes the bottom portion of the valve seat to seal against the bottom plate such that oil flows into the oil return line and up towards the oil-filled pinion box.

US Pat. No. 10,968,903

HANDHELD SANITARY FLUID SPRAYER HAVING RESILIENT POLYMER PUMP CYLINDER

Graco Minnesota Inc., Mi...

1. A pump for a handheld fluid sprayer, the pump comprising:a polymer pump body formed from a polymer material that defines an inner surface of an inner cylinder that forms a pumping chamber within the polymer pump body;
a driver, the driver comprising an electric motor;
a first metallic piston including an outer surface, a piston face, and a tapered interface between the outer surface and the face, wherein the first metallic piston is configured to reciprocate within the inner cylinder such that the outer surface of the piston comes into and out of contact with a portion of the inner surface defining the pumping chamber to pump spray fluid, the piston reciprocated by the driver; and
a nozzle to spray the spray fluid pumped by reciprocation of the piston within the pumping chamber,
wherein an outer diameter of the first metallic piston at the outer surface is larger than an inner diameter of the pumping chamber at the portion of the inner surface defining the pumping chamber when the outer surface is out of annular contact with the portion of the inner surface defining the pumping chamber.

US Pat. No. 10,968,902

PORTABLE ALTERNATIVE-ENERGY POWERED PUMP ASSEMBLY

Kickstart International, ...

1. An apparatus comprising:a pump housing configured for coupling to a second pump housing in at least one of a serial configuration or a parallel configuration, the pump housing comprising:
an inner chamber adapted to accommodate a pump;
an inlet for drawing fluid into the pump;
an outlet for expelling fluid from the pump;
an outer casing surrounding the inner chamber and comprising a first quick connect and a second quick connect;
a first pair of electrical terminals electrically coupleable to a power source; and
a second pair of electrical terminals in electrical communication with the first pair of electrical terminals and electrically coupleable to the second pump housing; and
a pump motor disposed in the inner chamber of the pump housing.

US Pat. No. 10,968,901

HYDRAULIC MACHINE AND REVERSIBLE METERING PUMP EQUIPPED WITH SUCH A MACHINE

DOSATRON INTERNATIONAL, ...

1. A reversible hydraulic machine, comprising:a casing (14) that extends longitudinally along an axis (100), and enclosing a cylindrical housing (22) coaxial to the casing;
a differential piston (1) having an upper ring (23) and a lower base (27) of a smaller cross-section, each of said upper ring and said lower base configured to slide in reciprocating movement respectively in the casing and in the cylindrical housing,
the differential piston and the cylindrical housing separating an interior of the casing, which includes a mixing chamber (18) delimited by the cylindrical housing and the lower base of the piston, an upper chamber (16) delimited by the upper ring (23) and a cover (15) of the casing, and a lower chamber (17) delimited by a portion below the upper ring (23), the casing (14), and the cylindrical housing;
hydraulic switching means for supplying and discharging the interior, upper, and lower chambers separated by the piston, said hydraulic switching means being controlled by movements of the piston and including a rod (4) acting on a distribution member (12) configured to adopt two stable positions, said distribution member including i) an upper valve (3) that cooperates with a first seat (25) located in the upper ring (23) of the piston so as to allow communication between the upper chamber and the lower chamber, and ii) a lower valve (9) that cooperates with a second seat (26) located in the lower base (27) of the piston so as to allow communication between the upper chamber and the mixing chamber; and
triggering means comprising a push-piece (2) that causes, at an end of a stroke of the piston, a sudden change in a position of the hydraulic switching means, under action of an elastic means (E), to reverse the stroke,
wherein the piston (1) is equipped at the upper ring (23) and at the lower base (27) with first and second removable sealing means (5,6), respectively, said first and second removable sealing means each being reversible for reversing a functioning of the machine,
wherein the first valve seat (25) accepts a first upper frustoconical portion (25a) and a first lower frustoconical portion (25c), said first upper and lower frustoconical portions tapering in opposite directions and opening respectively into one of the upper chamber and the lower chamber,
wherein the second valve seat (26) accepts a second upper frustoconical portion (26a) and a second lower frustoconical portion (26c), said second upper and lower frustoconical portions tapering in opposite directions and opening respectively into one of the upper chamber and the mixing chamber,
wherein communication between the chambers stops when the associated valve closes off either one of the upper or lower frustoconical portions, and
wherein:
the second lower frustoconical portion (26c) of the second valve seat (26) is closed when the first upper frustoconical portion (25a) of the first valve seat (25) is open, or
the second upper frustoconical portion (26a) of the second valve seat (26) is closed when the first lower frustoconical portion (25c) of the first valve seat (25) is open, or
the second lower frustoconical portion (26c) of the second valve seat (26) is open when the first upper frustoconical portion (25a) of the first valve seat (25) is closed, or
the second upper frustoconical portion (26a) of the second valve seat (26) is open when the first lower frustoconical portion (25c) of the first valve seat (25) is closed.

US Pat. No. 10,968,900

HIGH PRESSURE PUMP

Carlisle Fluid Technologi...

1. A positive displacement pump for pumping a fluid mastic, the pump comprising:a plurality of cylinders each having a piston arranged for reciprocal motion within the cylinder, whereby movement of the piston in a first direction draws the fluid into the cylinder and movement in a second, opposite direction pumps the fluid out of the cylinder; and
a variable speed electric motor drivingly coupled to a cam arrangement via a cam shaft and providing a reciprocating drive to the pistons, wherein the variable speed electric motor is an ac motor having an inverter and a forced convection fan arranged to provide cooling air to windings of the ac motor, and wherein the inverter has a closed loop vector drive control,
wherein the cam arrangement comprises cams shaped and arranged to drive each piston in the first direction over less than half of a rotational cycle and to drive each piston in the second direction over the remainder of the rotational cycle,
wherein the cams are arranged to drive the pistons out of phase with one another, and
wherein the cam arrangement includes, for each piston, a first cam and cam follower and a second cam and cam follower, 180° out of phase with the first cam and cam follower relative to the cam shaft, wherein the first and second cam followers are connected to each other such that the distance between the first and second cam followers is always the same, and cam surfaces are shaped to ensure that the cam followers maintain contact with the respective cams at all times.

US Pat. No. 10,968,899

PUMP UNIT AND HANDHELD HIGH PRESSURE WASHER

Positec Power Tools (Suzh...

1. A handheld high-pressure cleaning machine powered by a direct current and connectable to an external water source using a water pipe; wherein the handheld high-pressure cleaning machine comprises a spray gun comprising:a housing, wherein a motor, a transmission mechanism connected to the motor, and a pump driven by the transmission mechanism are provided in the housing;
a handle having a front end and a rear end with the front end of the handle connected to the housing behind the motor;
a detachable rechargeable battery pack coupled externally to the handle; and
a nozzle connected to a water outlet of the pump whereby water from the external water source may be sprayed out through the nozzle;
wherein the pump comprises a central chamber, a water inlet, a water outlet, a water inlet chamber connected to the water inlet, and a water outlet chamber connected to the water outlet, and wherein a plunger is disposed in the pump, an eccentric mechanism connected to the plunger drives the plunger to perform reciprocating motion, and
wherein the water inlet chamber and the water outlet chamber are located at one end of the plunger, and the external water source enters the water inlet chamber through the water inlet, is discharged from the water outlet chamber after being pressurized by the central chamber, and is sprayed outward through the nozzle.

US Pat. No. 10,968,898

GUIDING DEVICE

1. A guiding device for guiding an elongated element from an exterior of a support element into a hollow interior of the support element, the support element being a support element for supporting an offshore structure and being at least partly submerged in water, wherein said guiding device comprises:a tube comprising a first opening at a first end facing the exterior and a second opening at a second end opposite to the first end facing the hollow interior of the support element; and
one or more closing elements
configured to allow water to flow into said first opening and out of the second opening of said tube, and substantially prevent water from flowing into the second opening and out of the first opening, and
wherein said guiding device allows water to enter said hollow interior of said support element but not exit said hollow interior, and
wherein the one or more closing elements are configured to be pressed away from the elongated element and allow water to flow in the tube when a water pressure inside the hollow interior of the support element at a particular height is lower than a water pressure outside the support element at said particular height.

US Pat. No. 10,968,897

METHODS AND APPARATUS FOR SERVICING WIND TURBINE COMPONENTS THROUGH A LOWER PORTION OF A TOWER

1. A wind turbine construction, comprising:a tower having an upper end that supports a nacelle and rotor of a wind turbine and a lower end that includes a structural jacket, the structural jacket defining an interior space having an interior cross-sectional area and an external environment of the wind turbine;
a first removable electronics module positioned within the interior space of the tower;
a support structure that supports and elevates the tower to provide a space below the lower end of the tower for receiving the first removable electronics module from the interior space of the tower, wherein the lower end of the tower includes a downwardly facing opening through which the first removable electronics module may pass, and wherein the support structure includes at least one lateral opening that leads from the space below the lower end of the tower to the external environment; and
a cover for covering the at least one lateral opening to seal the space below the lower end of the tower.

US Pat. No. 10,968,896

CONNECTION AND FASTENING UNIT FOR A LIGHTNING RECEPTOR FOR INTEGRATION INTO A WIND TURBINE ROTOR BLADE

1. A connection and fastening unit for components of a lightning protection system, the connection and fastening unit being configured to be integrated in a wind turbine rotor blade and to be connected to the components of the lightning protection system, the connection and fastening unit comprising:a connection and fastening body defining a cavity configured to be closeable in an airtight manner;
at least one connector configured to connect to at least one of the components of the lightning protection system;
said at least one connector being arranged in said cavity;
said connection and fastening body including a base body produced from an electrically insulating material and a connection body produced from an electrically conducting material;
said base body and said connection body being fixedly interconnected;
said cavity being arranged between said base body and said connection body;
said at least one connector including a first connector having an inner thread in said connection body; and,
wherein said connection body has a bottom side configured to face away from an interior of the wind turbine rotor blade and a tubular portion at said bottom side; and, said inner thread is formed on an interior side of said tubular portion.

US Pat. No. 10,968,895

WIND TURBINE SHIPPING METHOD

Pecos Wind Power, Inc., ...

1. A method of shipping a wind tower, the method comprising:nesting a plurality of sections of the wind tower within one another to define a plurality of nested wind tower sections, the plurality of nested wind tower sections including a radially outermost section, each of the sections of the wind tower having:
(i) a bottom end configured to be closer to a bottom of the wind tower, relative to a top end, when the wind tower is installed in an upright position, and
(ii) the top end configured to be closer to a top of the wind tower, relative to the bottom end, when the wind tower is installed in the upright position, each of the bottom ends having at least one of an internal flange or an external flange, and each of the top ends having at least the other of the internal flange or the external flange; and
mounting a force distribution fixture having a fixed shape main body to the radially outermost section of the wind tower so that the force distribution fixture suspends the radially outermost section to form a single shipping unit, the fixed shape main body configured to distribute force among a plurality of points along the wind tower during tilt-up of the wind tower.

US Pat. No. 10,968,894

WIND TURBINE FOUNDATION AND METHOD OF CONSTRUCTING A WIND TURBINE FOUNDATION

TETRA TECH, INC., Pasade...

1. A wind turbine foundation comprising:a. a metal base can further comprising:
i. a substantially cylindrically-shaped main body,
ii. a first outer flange extending out from the main body along an upper section of the base can,
iii. a second outer flange extending out from the main body along a lower section of the base can, and
iv. a tower flange including a plurality of apertures for attaching a wind turbine tower to the base can; and
b. a plurality of metal radial girders connected to and radiating out from the base can wherein each of the plurality of radial girders are connected to the first outer flange and the second outer flange and wherein no concrete is required between the metal girders to support the wind turbine foundation.

US Pat. No. 10,968,893

WIND TURBINE COMPRISING A PARKING STRUCTURE FOR CARRYING THE ROTOR DURING REMOVAL OF THE NACELLE

1. A wind turbine comprising:a nacelle carrying a drive train;
a rotor with blades, the rotor configured to be carried by the drive train;
a tower structure comprising a vertical tower and at least one suspension arm extending outwards from the vertical tower, the at least one suspension arm configured to carry the nacelle; and
a parking structure configured to connect the rotor to the tower structure for carrying the rotor during removal of the nacelle,
wherein the rotor is connected to the tower structure, and the nacelle is disconnected from the tower structure.

US Pat. No. 10,968,892

CONTROLLING WIND TURBINE

Utopus Insights, Inc., V...

1. An apparatus, comprising:a processor; and
a memory storing instructions that, when executed by the processor, cause the apparatus to perform a method comprising:
receiving first status information regarding each of a plurality of wind turbines at a first time, the first status information for each of the plurality of wind turbines including status components, the status components including at least wind information and yaw information;
for each wind turbine of the plurality of wind turbines, determining a first difference between yaw information of the first status information of that particular wind turbine and each yaw information of the first status information of every other wind turbine of the plurality of wind turbines;
for each wind turbine of the plurality of wind turbines, comparing the first differences between at least the yaw information of that particular wind turbine and at least the yaw information of every other wind turbine of the plurality of wind turbines to at least one status component threshold;
dividing the plurality of wind turbines into two or more groups based on the first differences with the at least one status component threshold;
detecting a fault in the first wind turbine of the plurality of wind turbines at a second time, identifying a first group to which the first wind turbine belongs, the first group being one of the two or more groups; and
identifying a second wind turbine within the first group of the two or more groups, and controlling operation of the first wind turbine based on at least one parameter from the second wind turbine, if no other wind turbines of the plurality of wind turbines belongs to the first group of two or more groups to which the first wind turbine belongs and in response to one of a plurality of trigger conditions then:
receiving second status information regarding each of the plurality of wind turbines at a second time, the second status information for each of the plurality of wind turbines including status components for each wind turbine of the plurality of wind turbines;
for each wind turbine of the plurality of wind turbines, determining a second difference between at least the wind information of that particular wind turbine and each wind information of the second status information of every other wind turbine of the plurality of wind turbines;
for each wind turbine of the plurality of wind turbines, comparing the second differences between at least the wind information of that particular wind turbine and at least the wind information of every other wind turbine of the plurality of wind turbines to at least one status component threshold; and
re-dividing the plurality of wind turbines into two or more groups based on the second differences with the at least one status component threshold; and
identifying a second wind turbine within the group containing the wind turbine with the fault, and controlling operation of the first wind turbine based on at least one parameter from the second wind turbine, and
if no other wind turbines of the plurality of wind turbines belongs to the group of two or more groups to which the first wind turbine belongs, then shut down the first wind turbine.

US Pat. No. 10,968,891

METHOD OF CONTROLLING ACTIVE POWER GENERATION OF A WIND POWER PLANT AND WIND POWER PLANT

1. A method of controlling active power generation of a wind power plant coupled to a power grid, the wind power plant comprising a power plant controller for controlling a plurality of wind turbine generators, the method comprising:generating reactive power, using a reactive power source, to compensate for a disturbance in the power grid;
monitoring, using the power plant controller, an operational status of the reactive power source;
determining, using the power plant controller and based on the operational status, that there is at least a partial failure in the reactive power source resulting in a reduced reactive power generation capability, and in response adjusting a plant reactive power capability value to reflect the reduced reactive power generation capability;
controlling, using the power plant controller and based on the plant reactive power capability value, the wind power plant to curtail the active power generated by the wind power plant by a curtailment amount corresponding to the reduced reactive power generation capability;
monitoring a grid frequency for a drop in the grid frequency; and
controlling the wind power plant to increase active power output, including use of the curtailment amount, to support grid frequency recovery.

US Pat. No. 10,968,890

CONTROLLING WIND TURBINE POWER PRODUCTION WITHIN POWER RAMP RATE LIMIT FOR WIND POWER PLANT

1. A method of controlling a plant power output of a wind power plant (WPP) according to a predetermined power ramp rate limit, the WPP comprising a plurality of wind turbine generators (WTGs), the method comprising:receiving, from a first WTG of the plurality of WTGs, a first signal indicating that a rotor speed of the first WTG has reached a predetermined intermediate rotor speed value less than a nominal rotor speed value corresponding to nominal power production of the first WTG;
determining, responsive to the first signal, whether continuing to increase the rotor speed from the intermediate rotor speed value to the nominal rotor speed value to subsequently begin power production of the first WTG at a predetermined default power ramp rate would cause the plant power output to exceed the power ramp rate limit;
transmitting, after a first delay, an instruction to the first WTG to increase the rotor speed from the intermediate rotor speed value to the nominal rotor speed value;
receiving, from the first WTG, a second signal indicating that the first WTG is in a ready state to begin producing power; and
upon determining that, responsive to the second signal, beginning the power production of the first WTG at the predetermined default power ramp rate would cause the plant power output to exceed the power ramp rate limit:
controlling the power production of the first WTG using at least one of: (1) a second delay before instructing the first WTG to begin producing power, (2) a power ramp rate reference less than the default power ramp rate of the first WTG, and (3) a power reference less than a nominal power output of the first WTG.

US Pat. No. 10,968,889

WIND TURBINE CONTROL

1. A method of controlling the operation of a wind turbine comprising a rotor, a generator and at least one heat generating component, wherein the method comprises:obtaining a temperature of the heat generating component;
wherein the heat generating component is at least one of the generator, a component which generates heat due to electrical losses associated with a production of electrical power, and a component cooled by a cooling system that provides cooling to the generator;
determining the presence of a predetermined increase of the temperature of the heat generating component; and
upon determining the presence of the predetermined temperature increase, controlling the rotational speed of the generator so as to increase the rotational speed of the generator while not increasing the electrical power output of the generator or while increasing the electrical power output of the generator at a smaller proportion than the increase in rotational speed of the generator so as to reduce the level of electrical current in the generator;
wherein increasing the rotational speed of the generator comprises reducing a power offtake from the generator, wherein a pitch of rotor blades of the rotor is maintained or is adjusted so as to increase the aerodynamic efficiency of the rotor blades while the power offtake from the generator is reduced.

US Pat. No. 10,968,888

METHOD FOR CONTROLLING AIR DEFLECTORS AND PITCH ANGLES OF WIND TURBINE BLADES

1. A method for controlling a wind turbine, the wind turbine comprising a set of wind turbine blades, each wind turbine blade being provided with at least one air deflector being movable between an activated position in which it protrudes from a surface of the wind turbine blade and a de-activated position, the wind turbine being operated in a first operating state, the method comprising:registering the occurrence of an event causing a change in operational conditions;
determining a new operating state for the wind turbine, the new operating state meeting requirements of the changed operational conditions; and
controlling the air deflectors of the wind turbine blades and pitch angles of the wind turbines blades in order to reach the new operating state for the wind turbine, wherein the control of the pitch angles of the wind turbine blades is performed while taking information regarding the control of the air deflectors into account, and wherein controlling the air deflectors and the pitch angles of the wind turbine blades comprises:
determining a load impact on the wind turbine and a transition time of reaching the new operating state in a situation where only air deflectors are deployed;
determining that the load impact is larger than a target load impact or that the transition time is larger than a target transition time;
determining a pitch response required to reach the target load impact or the target transition time; and
controlling the pitch angles of the wind turbine blades according to the determined pitch response.

US Pat. No. 10,968,887

TRAILING EDGE ASSEMBLY

1. A trailing edge assembly of a wind turbine rotor blade, which trailing edge assembly comprises:a mounting portion shaped for mounting to an airfoil region of the rotor blade;
a flap portion flexibly connected to the mounting portion to allow alteration of a flap angle subtended between the mounting portion and the flap portion;
a volume adjustable chamber arranged between the mounting portion and the flap portion and configured to alter its volume between a minimum volume associated with a minimum flap angle and a maximum volume associated with a maximum flap angle;
at least one tube comprising an outer orifice arranged above the airfoil region of the rotor blade and arranged to face into an airflow passing over the airfoil region of the rotor blade, and an inner orifice arranged to face into the interior of the volume adjustable chamber such that an airflow between the outer orifice and the inner orifice alters the volume of the volume adjustable chamber.

US Pat. No. 10,968,886

AIRFOIL AND A TURBINE APPARATUS

Caren Meicnic Teoranta, ...

1. A turbine airfoil for relative movement in an ambient fluid, comprising:a main spar having a cross-sectional shape of an airfoil with a top side wall and a bottom side wall, a leading edge, a trailing edge, and a camber line extending from said leading edge to said trailing edge, wherein movement of said airfoil relative to said ambient fluid causes said ambient fluid to flow over said main spar in a downstream direction from said leading edge to said trailing edge, anddischarge means operable to selectively discharge an evaporative fluid and a condensing fluid into said ambient fluid;wherein said main spar has a side wall extending from said leading edge to said trailing edge, said side wall having a first hill formation and a second hill formation, wherein both said first hill formation and said second hill formation include a first region of progressively increasing distance from said camber line, a second region of progressively decreasing distance from said camber line, and a crest at an interface between said first region and said second region, wherein said first region of said first hill formation is operable to interact with said ambient fluid to accelerate said ambient fluid from a high subsonic relative speed to a sonic relative speed over said crest of said first hill formation and a supersonic speed after said crest of said first hill formation;
wherein said discharge means is operable to discharge said evaporative fluid to evaporate into said ambient fluid before condensation onset in said second region of said first hill formation, said second region of said first hill formation interacting with said ambient fluid to accelerate said ambient fluid from a supersonic relative speed to a higher supersonic relative speed;
said first region of said second hill formation being operable to interact with said ambient fluid to decelerate and maintain said ambient fluid at said supersonic relative speed over said crest of said second hill formation, andwherein said discharge means is further operable to discharge said condensing fluid to nucleate condensation shock in said ambient fluid flowing over said second region of said second hill formation to decelerate said ambient fluid from said supersonic relative speed to said subsonic relative speed and generate a pressure on said side wall to impart thrust on said airfoil.

US Pat. No. 10,968,885

ROTOR BLADE OF A WIND TURBINE AND A WIND TURBINE

Wobben Properties GmbH, ...

1. A rotor blade for a wind power installation, comprising:a suction side;
a pressure side;
a hub region;
a tip region;
a rotor blade root at the hub region, the rotor blade root being configured to attach the rotor blade to a rotor hub; and
a rotor blade tip at the tip region;
wherein in a region of the hub region, a trailing edge of the rotor blade has, at least in part, a thickness profile having a thorn-like extension,
wherein the thorn-like extension includes at least one of:
a first thorn-like extension at the trailing edge at the suction side, and
a second thorn-like extension at the trailing edge at the pressure side,
wherein in the region of the hub region, the thickness profile has, at least in part, at least one of: a flow stabilizer or a vortex generator, on at least one of: the suction side or pressure side, and
wherein the thorn-like extension forms a channel having a substantially flat base between the first and the second thorn-like extensions, wherein a relative or an absolute profile thickness that is defined as a ratio of a profile thickness to a profile depth decreases from the rotor blade root to the rotor blade tip.

US Pat. No. 10,968,884

FLUID FLOW ENERGY HARVESTER

1. A fluid flow energy harvester operatively arrangeable in a fluid flow, the harvester comprising:a crankshaft;
at least one vane pivoted into complementary sail and crank portions on respective sides of such pivot, the sail and crank portions operatively oscillatable about the pivot, the crank portion being linked to the crankshaft via a crank so that operative oscillation of the vane imparts rotational force to the crankshaft; and
a fin arrangement comprising a fin steerably arranged on the vane with a fin actuator configured to operatively steer an orientation of the fin relative to the vane;
wherein the fin actuator including a linkage between the fin and a camming groove defined in the crankshaft or defined in a camshaft driven by the crankshaft, the camming groove being configured to steer or guide an orientation of the fin by way of the linkage as the vane completes one full oscillation so that, during oscillation of the sail portion, either a surface of the sail portion or of the fin impedes the fluid flow when a surface of the other is substantially parallel to such fluid flow, thereby counteracting stalling of vane oscillation to facilitate continuous rotation of the crankshaft during fluid flow.

US Pat. No. 10,968,883

AIR-DRIVEN GENERATOR

1. A method of operating a n air-driven generator, the method comprising:inducing an upward movement of a column of working fluid contained in a buoyancy conduit by injecting air into the working fluid at a lower portion of the buoyancy conduit using an air injection system, the injected air displacing a volume of the working fluid in the buoyancy conduit;
receiving a flow of the working fluid in an upper chamber disposed at an upper end of the buoyancy conduit, the upper chamber affecting the flow of the working fluid to:
remove injected air from the working fluid in the upper chamber, and
direct the working fluid into an upper end of an elongate gravitational distribution conduit disposed at a bottom of the upper chamber;
allowing acceleration of a downward flow of working fluid in the elongate gravitational distribution from the upper end of the elongate gravitational distribution conduit to a lower end of the elongate gravitational distribution conduit under the force of gravity;
directing the accelerated working fluid into a fluid turbine system interposed between the lower end of the gravitational distribution conduit and a lower end of the buoyancy conduit; and
adding heat to the working fluid via a heat exchanger interposed between the lower end of the gravitational distribution conduit and the lower end of each buoyancy conduit.

US Pat. No. 10,968,882

MOVABLE-BLADE OPERATION SYSTEM FOR HYDRAULIC MACHINE

KABUSHIKI KAISHA TOSHIBA,...

1. A movable-blade operation system for a hydraulic machine, for adjusting opening of movable blades that rotate together with a rotational shaft of the hydraulic machine, the system comprising:an oil hydraulic cylinder installed within the rotational shaft, the oil hydraulic cylinder including a piston coupled to the movable blades, and including a first cylinder chamber and a second cylinder chamber that are defined by the piston;
a bidirectional pump configured to selectively feed pressurized hydraulic oil to one of the first cylinder chamber and the second cylinder chamber;
a pump drive motor configured to drive the bidirectional pump;
a controller configured to control the pump drive motor;
an oil head installed in the hydraulic machine and rotatably coupled to the rotational shaft, the hydraulic oil to be fed from the bidirectional pump to the first cylinder chamber and the second cylinder chamber flowing through the oil head; and
a sump tank configured to store hydraulic oil to be fed to the first cylinder chamber and the second cylinder chamber,
wherein the bidirectional pump, the pump drive motor, the controller, and the sump tank are installed outside the hydraulic machine,
wherein the bidirectional pump and the oil head are coupled by a first pipe communicating with the first cylinder chamber and by a second pipe communicating with the second cylinder chamber,
wherein the first pipe and the second pipe are connected by a bypass line,
wherein the bypass line communicates with a supply line extending from the sump tank,
wherein a first valve controlling the flow of the hydraulic oil between the first pipe and the sump tank is provided on the side of the first pipe with respect to a communication point with the supply line in the bypass line, and
a second valve controlling the flow of the hydraulic oil between the second pipe and the sump tank is provided on the side of the second pipe with respect to a communication point with the supply line in the bypass line.

US Pat. No. 10,968,881

SPARK PLUG

NGK SPARK PLUG CO., LTD.,...

1. A spark plug, comprising:a tubular insulator having a reduced diameter portion and an axial hole, the reduced diameter portion having an outside diameter that becomes smaller toward a top end side of the spark plug, the axial hole extending from the top end side toward a rear end side of the spark plug along an axis (O) of the spark plug;
a center electrode disposed in the axial hole;
a tubular metal shell placed at an outer periphery of the insulator, the metal shell having, at an inner periphery thereof, a shelf portion that protrudes inward in a radial direction of the metal shell and holds the reduced diameter portion of the insulator directly or through a ring-shaped packing from the top end side, the metal shell further having, at an outer periphery thereof, a thread portion;
a ground electrode connected to the metal shell and facing the center electrode through a spark gap;
a terminal located at the rear end side with respect to the thread portion;
a detector electrode provided at a portion located at the top end side with respect to a top end of a contact portion between the reduced diameter portion and the shelf portion or the packing, the detector electrode being arranged in a space formed between the outer periphery of the insulator and the inner periphery of the metal shell; and
a conductor connecting the detector electrode and the terminal,
wherein the detector electrode and the conductor are insulated from the center electrode, the metal shell, and the ground electrode.

US Pat. No. 10,968,880

KICKBACK-LIMITED SOFT-SHUTDOWN CIRCUIT FOR A COIL

SEMICONDUCTOR COMPONENTS ...

1. A circuit, comprising:a coil configured to conduct a coil current from a battery to a ground;
a switching device coupled between the coil and the ground;
a coil current controller including a plurality of current sources configured to be coupled or decoupled to a controlling terminal of the switching device to adjust a level of the coil current; and
a collector monitor circuit configured to monitor a voltage corresponding to a kickback voltage of the coil during a soft shutdown of the coil current and adjust current from one or more of the plurality of current sources to limit the kickback voltage of the coil.

US Pat. No. 10,968,879

SYSTEMS AND METHODS FOR CATALYST HEATING

Ford Global Technologies,...

1. A method, comprising:in response to a cold start condition of an engine included in a vehicle,
providing a spark to ignite fuel and a portion of air entering the engine at an ignition timing retarded from a timing for maximum brake torque, the retarded ignition timing determined based on an occupancy of the vehicle and provided while providing electric motor torque to the engine via an electric machine to maintain an engine speed of the engine above a threshold speed; and
adjusting one or more of a position of a throttle coupled to an air intake passage of the engine and the engine speed, maintained by the electric machine, based on a desired heat output of the engine and the occupancy of the vehicle, including adjusting the position of the throttle while holding the engine speed constant when the vehicle is an occupied vehicle and adjusting the position of the throttle to a further open position while increasing the engine speed as the desired heat output of the engine increases when the vehicle is an unoccupied vehicle, including increasing the engine speed to a greater degree and adjusting the position of the throttle to a smaller degree at lower engine speeds and increasing the engine speed to a smaller degree and adjusting the position of the throttle to a greater degree at higher engine speeds.

US Pat. No. 10,968,878

CIRCUIT AND METHOD FOR COIL CURRENT CONTROL

SEMICONDUCTOR COMPONENTS ...

1. A soft-start ramp generator, comprising:a capacitor; and
a voltage controlled current source configured to generate an output current according to a plurality of operating characteristics based on a voltage across the capacitor, wherein the output current generated by the voltage controlled current source is configured to charge the capacitor such that when the capacitor is charged, the voltage controlled current source generates the output current according to each of the plurality of operating characteristics.

US Pat. No. 10,968,877

ELECTROMAGNETICALLY ACTUATABLE SUCTION VALVE AND METHOD FOR PRODUCING AN ELECTROMAGNETICALLY ACTUATABLE SUCTION VALVE

Robert Bosch GmbH, Stutt...

1. An electromagnetically actuatable suction valve (1) for a high-pressure fuel pump (2), the valve (1) comprising a magnet assembly (3) and a hydraulic module (4), wherein at least some section or sections of the hydraulic module (4) engages or engage in an annular magnet coil (5) of the magnet assembly (3), characterized in that a heat-conducting material (6) or a heat-conducting body (7) is arranged between the magnet coil (5) and the hydraulic module (4), wherein the hydraulic module (4) comprises a pole core (11), which engages in the magnet coil (5) and on which the heat-conducting material (6) or the heat-conducting body (7) rests directly, and wherein the pole core (11) is connected to a valve body (13) via a welding sleeve (12), and the heat-conducting material (6) or the heat-conducting body (7) extends beyond the welding sleeve (12) and has a sealing function for the welding sleeve.

US Pat. No. 10,968,876

ENGINE AIR INTAKE DUCT WITH ORIFICE CAP AND MANUFACTURE THEREOF

Ford Global Technologies,...

1. A vehicle comprising:an engine; and
an air intake system adapted to direct airflow to the engine, the air intake system having an air intake duct that includes a first body portion secured to a second portion to form a shell, the shell defining an air inlet at a first end and an air outlet at a second end opposite the first end, wherein the first body portion defines a plurality of orifices disposed therethough and an integrally-formed closure interface disposed adjacent the plurality of orifices and including
a closure frame having an upstanding wall extending from the first body portion about a perimeter of the plurality of orifices and an upstanding closure member extending from the first body portion,
a hinge connected to and extending from the closure frame, and
an orifice cap connected to and extending from the hinge and having an aperture sized to receive the upstanding closure member, wherein the orifice cap when engaged with the upstanding closure member extends over and covers the plurality of orifices, and is spaced from at least a portion of the upstanding wall to define a gap between the orifice cap and upstanding wall that permits air flow through the integrally-formed closure interface, through the plurality of orifices, and into an internal cavity defined by the shell.

US Pat. No. 10,968,875

INTAKE MANIFOLD

AISIN SEIKI KABUSHIKI KAI...

1. An intake manifold, comprising:a surge tank formed by a first member and a second member which are joined with each other, the surge tank to which an external gas is introduced;
an outer peripheral joint portion at which the first member and the second member are joined with each other; and
a passage wall portion extending inwardly from the outer peripheral joint portion so as to form a gas passage introducing the external gas to the surge tank, the gas passage being formed between inner surfaces of the first member and the second member and the passage wall portion; wherein
the passage wall portion includes
a first member passage wall portion provided at the first member;
a second member passage wall portion provided at the second member; and
an inner joint portion including a division point at which the inner joint portion is divided from the outer peripheral joint portion, the inner joint portion at which the first member passage wall portion and the second member passage wall portion are joined with each other;
the inner joint portion includes a first inner joint portion including the division point and a second inner joint portion;
the second inner joint portion is arranged at a height position closer to a middle part of the gas passage than the division point in a first direction in which the first member and the second member are opposed with each other;
the first inner joint portion and the second inner joint portion are arranged so as to extend in a second direction which is orthogonal to the first direction;
the second inner joint portion is arranged so as to extend in the second direction at the height position closer to the middle part of the gas passage than the first inner joint portion in the first direction.

US Pat. No. 10,968,874

COLLAPSIBLE FOAM SLEEVE FOR ENGINE AIR INDUCTION SYSTEM

Ford Global Technologies,...

1. A system for an engine, comprising:a collapsible foam sleeve fitted onto an engine passage, the collapsible sleeve including cuts on its surface.

US Pat. No. 10,968,873

HYDROCARBON ADSORBER APPARATUS AND FIXATION METHOD THEREOF

1. An engine air intake system, the system comprising:a housing, the housing including an inlet and an outlet, the outlet being configured to be affixed to an intake of an engine;
an adsorbent material;
a frame, the frame including a first portion and a second portion forming a cavity therebetween, the cavity containing the adsorbent material, the frame being permanently affixed to an interior of the housing between the inlet and the outlet,
wherein air escaping from the outlet in a reverse flow condition is configured to come into contact with the adsorbent material contained within the frame such that hydrocarbons contained in the air are adsorbed by the adsorbent material, the first portion and the second portion having a plurality of corresponding apertures;
wherein the housing comprises one or more pins configured to extend through the one or more apertures, the one or more pins configured to be deformed so as to form an interfering lip in an affixed configuration;
wherein the adsorbent material is contained in the frame in such a manner that removal of the adsorbent material from the frame would result in destruction of the frame or housing; and
wherein the frame extends only about a portion of an interior perimeter of the housing providing a free bypass between the inlet and the outlet.

US Pat. No. 10,968,872

EXHAUST GAS RECIRCULATION VALVE WARMING DEVICE

TOYOTA JIDOSHA KABUSHIKI ...

1. An exhaust gas recirculation valve warming device comprising:a valve member arranged in an exhaust passage of an internal combustion engine, wherein the valve member is configured to adjust a flow rate of exhaust gas flowing in the exhaust passage;
an exhaust gas recirculation passage that extends from a portion of the exhaust passage that is upstream of the valve member and is connected to an intake passage of the internal combustion engine, wherein the exhaust gas recirculation passage is configured to recirculate exhaust gas to the intake passage;
an exhaust gas recirculation valve arranged in the exhaust gas recirculation passage, wherein the exhaust gas recirculation valve is configured to adjust a flow rate of exhaust gas flowing in the exhaust gas recirculation passage; and
a branch passage that extends from a portion of the exhaust passage that is upstream of the valve member or a portion of the exhaust gas recirculation passage that is upstream of the exhaust gas recirculation valve in a direction in which exhaust gas flows, wherein the branch passage is connected to a portion of the exhaust passage that is downstream of the valve member,
wherein the exhaust gas recirculation valve includes a valve passage that forms part of the exhaust gas recirculation passage and a warming passage that forms part of the branch passage.

US Pat. No. 10,968,871

ENGINE SYSTEM AND METHOD OF CONTROLLING THE SAME

Hyundai Motor Company, S...

1. An engine system, comprising:an engine including at least a combustion chamber generating driving torque by combustion of fuel;
at least an intake line through which outside air supplied to the at least a combustion chamber flows;
an intake manifold mounted on an intake side of the at least a combustion chamber and connected to the at least an intake line;
an exhaust manifold mounted on an exhaust side of the at least a combustion chamber;
an exhaust line connected to the exhaust manifold and through which the exhaust gas flows;
a first electric supercharger mounted in the at least an intake line;
a first exhaust gas recirculation (EGR) device including a first EGR line branched from the exhaust manifold and joining the intake manifold and a first EGR valve mounted in the first EGR line; and
a controller configured for determining an engine target torque according to driving information of the engine, setting an engine torque within an operation region of the first EGR device when the engine target torque is in a torque dead band between the operation region of the first EGR device and a non-operation region thereof, and compensating a difference value between the engine target torque and the engine torque by a hybrid electric vehicle (HEV) motor,
wherein a second electric supercharger is mounted in the at least an intake line,
wherein the at least an intake line includes:
a first intake line through which first outside air supplied to the at least a combustion chamber flows;
a second intake line through which second outside air supplied to the at least a combustion chamber flows; and
a bypass line connecting the first intake line and the second intake line, and
wherein the second electric supercharger is connected to the second intake line and the bypass line.

US Pat. No. 10,968,870

EVAPORATIVE FUEL VAPOR EMISSION CONTROL SYSTEMS

INGEVITY SOUTH CAROLINA, ...

1. An adsorbent material for evaporative emission control comprising:a particulate activated carbon material having microscopic pores with a diameter of less than about 100 nm, macroscopic pores having a diameter of about 100-100,000 nm, and a ratio of the volume of the macroscopic pores to the volume of the microscopic pores that is greater than about 160%,
wherein the particulate activated carbon material has less than 40 Pa/cm pressure drop when a 46 cm/s apparent linear air flow velocity is applied to a 43 mm diameter bed of the particulate activated carbon material, and at least one of (i) a nominal butane working capacity (BWC) of <8 g/dL, (ii) a butane retentivity of less than about 1 g/dL or (iii) a combination of (i) and (ii).

US Pat. No. 10,968,869

EVAPORATED FUEL PROCESSING DEVICE

AISAN KOGYO KABUSHIKI KAI...

1. An evaporated fuel processing device comprising:a canister disposed on a purge passage extending from a fuel tank to an intake passage of an engine, the canister comprising a purge port connected to the purge passage and an open air port communicating with open air, and the canister configured to adsorb fuel evaporated in the fuel tank;
a control valve disposed on the purge passage on an intake passage side relative to the canister and configured to switch between a communication state and a cutoff state, the communication state being a state where the canister and the intake passage communicate through the purge passage, and the cutoff state being a state where communication between the canister and the intake passage is cut off on the purge passage;
a pump disposed on the purge passage between the canister and the control valve, and configured to selectively perform both an operation of sending purge gas in the purge passage in a forward direction from the canister to the control valve and an operation of sending the purge gas in the purge passage in a reverse direction from the control valve to the canister;
a switching valve configured to switch between a communication state being a state where the open air port of the canister communicates with the open air and a cutoff state being a state where communication between the open air port of the canister and the open air is cut off; and
a controller,
wherein
the controller is configured to determine whether there is a communicated point with the open air between the pump and the control valve or there is a communicated point with the open air on an opposite side to the control valve relative to the pump, by using a second pressure and at least one of a first pressure or a third pressure, wherein:
the first pressure is a pressure between the pump and the control valve in a first case where the control valve is in the cutoff state, the switching valve is in the communication state, and the pump performs the operation of sending the purge gas in the forward direction;
the second pressure is a pressure on the opposite side to the control valve relative to the pump in a second case where the control valve is in the communication state, the switching valve is in the cutoff state, and the pump performs the operation of sending the purge gas in the reverse direction; and
the third pressure is a pressure between the pump and the control valve or on the opposite side to the control valve relative to the pump in a case where the control valve and the switching valve are in the cutoff states and the pump is stopped after the first case or the second case,
at least one pressure sensor disposed at least one of between the pump and the control valve and on the opposite side to the control valve relative to the pump, and
the controller is further configured to determine whether the at least one pressure sensor operates normally or not by using a detected value by the at least one pressure sensor in a case where the control valve is in the cutoff state, the switching valve is in the communication state, and the pump is stopped.

US Pat. No. 10,968,868

METHODS AND SYSTEMS FOR A LUBRICATING DEVICE

Ford Global Technologies,...

1. A system comprising:a device comprising a first volume configured to receive compressed-natural-gas via a gas line that terminates in the first volume and deliver the compressed-natural-gas directly to an injection rail, and a second volume fluidly coupled to a lubricant port, where the lubricant port is an oil port that terminates in the second volume, wherein the first volume and the second volume are separated by a separator element shaped to allow lubricant to flow from the second volume to the first volume.

US Pat. No. 10,968,867

PURGING NATURAL GAS COMPRESSORS

ONBOARD DYNAMICS, INC., ...

1. A gas compression system, comprising:(a) a gas compressor including (i) a plurality of compression cylinders in fluid communication with each other and configured to compress a gas in a series of stages, including an initial compression cylinder in fluid communication with a gas inlet and a final compression cylinder in fluid communication with a gas outlet; and (ii) a cylinder head including a valve system to direct a flow of the gas into and out of the compression cylinders; and
(b) a pump system configured to remove residual gas from the gas compressor after a compression cycle.

US Pat. No. 10,968,866

GAS ENGINE, METHOD FOR OPERATING A GAS ENGINE AND GENERATOR SET

SCANIA CV AB

1. An internal combustion gas engine comprising:at least one gas engine cylinder arrangement and a first compressor configured for compressing a gaseous fuel and air mixture, wherein
the at least one cylinder arrangement defines a combustion chamber and the combustion chamber comprises an intake arrangement for intake of charge gas into the combustion chamber, a sparkplug, and a pre-chamber which is arranged in connection with the combustion chamber and with the sparkplug;
the internal combustion gas engine further comprises a second compressor configured for compressing a gaseous medium, and a pressure reducer;
an outlet of the first compressor and an outlet of the second compressor are arranged in parallel;
the outlet from the first compressor is connected to the pre-chamber;
the outlet from the first compressor and the outlet from the second compressor are connected to the pressure reducer; and
an outlet from the pressure reducer is connected to the intake arrangement.

US Pat. No. 10,968,865

ROCKET PROPULSION SYSTEM AND METHOD FOR OPERATING A ROCKET PROPULSION SYSTEM

ARIANEGROUP GMBH, Taufki...

1. A rocket propulsion system comprising: a combustion chamber;an oxygen supply system, which comprises an oxygen supply duct and is configured to supply oxygen to the combustion chamber;
a hydrogen supply system, which comprises a hydrogen supply duct and is configured to supply hydrogen to the combustion chamber;
an ignition unit, to which at least a portion of the oxygen supplied to the combustion chamber and at least a portion of the hydrogen supplied to the combustion chamber is configured to be supplied and which is configured to initiate combustion of the oxygen-hydrogen mixture in the combustion chamber, wherein the ignition unit comprises a catalyst chamber and a premixing chamber for premixing the portion of oxygen supplied to the ignition unit and the portion of hydrogen supplied to the ignition unit prior to supplying the oxygen-hydrogen mixture to the catalyst chamber, wherein the premixing chamber is arranged upstream of an entrance area to the catalyst chamber, and wherein a flow cross section of the premixing chamber for the gases to be supplied to the catalyst chamber becomes larger in a direction of the entrance area of the catalyst chamber, and
a cooling duct, which extends along an inner surface of a combustion chamber wall wherein the cooling duct comprises a section, which extends between an outer surface of the ignition unit and a section of the inner surface of the combustion chamber wall lying opposite an outer surface of the ignition unit and opens into the combustion section of the combustion chamber arranged downstream of an exit area of the ignition unit, wherein a swirler is arranged in said section of the cooling duct and wherein the cooling duct is configured to be flown through with one of
at least a portion of the oxygen supplied to the combustion chamber from the oxygen supply duct, wherein the oxygen supply duct extends along the inner surface of the combustion chamber wall such that the section of the cooling duct extends from the oxygen supply duct;
at least a portion of the hydrogen supplied to the combustion chamber from the hydrogen supply duct, wherein the hydrogen supply duct extends along the inner surface of the combustion chamber wall such that the section of the cooling duct extends from the hydrogen supply duct; or
a combustion gas mixture emerging from the ignition unit; and
wherein an oxygen supply opening for supplying oxygen to the premixing chamber is formed in a wall of the premixing chamber that at least partially defines the oxygen supply duct; or
a hydrogen supply opening for supplying hydrogen to the premixing chamber is formed in a wall of the premixing chamber that at least partially defines the hydrogen supply duct.

US Pat. No. 10,968,864

NACELLE

Rohr, Inc., Chula Vista,...

1. A nacelle comprising a cascade and an outlet cowling, the cascade being radially inward relative to the outlet cowling, the outlet cowling comprising:a translating sleeve panel comprising an aft end and a first lateral side;
an outer fixed structure, the outer fixed structure comprising a first lateral side;
an outer track on the first lateral side of the outer fixed structure;
a forward thrust configuration where the aft end of the translating sleeve panel is in a first position relative to the outer fixed structure; and
a reverse thrust configuration where the aft end of the translating sleeve panel is in a second position relative to the outer fixed structure, wherein the second position is longitudinally aft of the first position, wherein the translating sleeve panel slides along the outer track in moving between the forward thrust configuration and the reverse thrust configuration, and wherein the translating sleeve panel is configured to expose the cascade in response to translating aftward to the reverse thrust configuration, thereby allowing air to be redirected in a forward direction via the cascade in the reverse thrust configuration,
wherein the first lateral side of the translating sleeve panel is adjacent to the first lateral side of the outer fixed structure,
wherein the translating sleeve panel is configured to translate longitudinally aftward relative to the outer fixed structure via the outer track in moving from the forward thrust configuration to the reverse thrust configuration.

US Pat. No. 10,968,863

INTERNAL COMBUSTION ENGINE

HONDA MOTOR CO., LTD., T...

1. An internal combustion engine comprising:a crankshaft supported by a crankcase via a bearing;
a balancer drive gear disposed on the crankshaft;
a balancer shaft on which a balancer is disposed;
a balancer driven gear disposed on the balancer shaft, the balancer driven gear meshing with the balancer drive gear; and
a one-way clutch mechanism that transmits to the crankshaft a drive force to start the internal combustion engine, the balancer drive gear being disposed between the bearing and the one-way clutch mechanism on the crankshaft, wherein
the balancer drive clear is disposed adjacent to the bearing on an outside of a crank chamber of the crankcase,
the one-way clutch mechanism includes a case fixed to the crankshaft and a starter driven gear provided relatively rotatably with respect to the case and driven by the drive force,
the bearing, the balancer drive gear, the starter driven gear, and the case are disposed on the crankshaft in sequence from a side of the crank chamber, side-by-side in an axial direction of the crankshaft, and
the starter driven gear includes a thrust bearing portion that abuts on the balancer drive gear on a surface, of the starter driven gear, facing the balancer drive gear, and the thrust bearing portion is a protrusion that protrudes in the axial direction of the crankshaft toward the balancer drive gear.

US Pat. No. 10,968,862

MONOLITHIC, GALLERYLESS PISTON AND METHOD OF CONSTRUCTION THEREOF

Tenneco Inc., Lake Fores...

1. A piston for an internal combustion engine, comprising:a piston body extending along a central longitudinal axis;
said piston body having an upper wall forming an upper combustion surface with a ring belt region depending from said upper combustion surface;
said upper wall having an undercrown surface formed on an underside thereof;
said piston body including a pair of skirt portions depending from said ring belt region;
said piston body including a pair of pin bosses spaced from one another each of said pin bosses including an inner surface facing toward said central longitudinal axis and an outer surface facing away from said central longitudinal axis, and each of said pin bosses providing a pin bore extending continuously from said inner surface to said outer surface;
a pair of laterally spaced struts extending between and joining said pin bosses to said skirt portion;
said piston body being free of a cooling gallery along said undercrown surface between said skirt portions and pin bosses;
said undercrown surface including undercrown pockets formed between said outer surfaces of said pin bosses and an inner surface of said ring belt region, and said undercrown pockets defining a portion of said undercrown surface; and
said piston body including a pair of ribs disposed between said pin bosses and extending along said undercrown surface between said skirt portions and spaced laterally inwardly of said struts at said skirt portions.

US Pat. No. 10,968,861

CYLINDER HEAD

KOMATSU LTD., Tokyo (JP)...

1. A cylinder head comprising:a cylinder head main body having an intake port on an intake side of the cylinder head main body, communicating with a cylinder of a cylinder block and an exhaust port communicating with the cylinder;
a rocker housing integrally formed on the cylinder head main body and an inner side of which is a valve-system accommodating space, and
an intake manifold integrally formed on the intake side of the cylinder head main body and connected to the intake port,
wherein the rocker housing includes
a lateral wall having a lateral wall main body and a base end portion that extends along a lower end of the lateral wall main body, connects the lateral wall main body to the cylinder head main body, and has a thickness thicker than that of the lateral wall main body,
wherein a flow path extending in an extending direction of the base end portion and through which a fluid flows is formed in the base end portion,
wherein a plurality of the cylinders arranged in the cylinder block, the intake port and the exhaust port communicate with each of the cylinders, and the lateral wall and the flow path extend in a cylinder arranged direction that is an arrangement direction of the cylinders,
wherein each intake port is formed so as to intake air from an intake side which is one side of an orthogonal direction orthogonal to the cylinder arranged direction,
wherein the rocker housing has an intake-side lateral wall disposed on the intake side as the lateral wall,
wherein as the flow path, a fuel return flow path through which a fuel flows is formed in the base end portion of the intake-side lateral wall, wherein the fuel has returned from a plurality of fuel injectors that are arranged so as to inject fuel into each cylinders,
wherein the intake manifold extends in the cylinder arranged direction so as to be connected to each intake port,
wherein a connecting flow path extending from each fuel injector to the fuel return flow path is formed in the cylinder head main body,
wherein the fuel return flow path is located above the internal space of the intake manifold, and
the connecting flow path extends while inclining upward from each fuel injector toward the intake side so as to pass between the valve-system accommodating space and an internal space of the intake port and the intake manifold communicating with the intake port.

US Pat. No. 10,968,860

CYLINDER LINER HAVING VARIED THERMAL CONDUCTIVITY

ZYNP GROUP (U.S.A.) INC.,...

1. A cylinder liner having varied thermal conductivity comprising: a cylindrical body; an outer surface of the cylindrical body; a first portion on the outer surface of the cylindrical body, the first portion disposed adjacent a top end of the cylindrical body, the first portion defining a first circumferential portion of the cylindrical body, the first circumferential portion including greater than half a height of the cylindrical body, the first portion having a first thermal conductivity; and a second portion on the outer surface of the cylindrical body, the second portion disposed adjacent a bottom end of the cylindrical body, the second portion defining a second circumferential portion of the cylindrical body, the second portion having a second thermal conductivity, the first thermal conductivity being greater than the second thermal conductivity.

US Pat. No. 10,968,859

PREMIXED COMPRESSION IGNITION ENGINE AND METHOD FOR CONTROLLING PREMIXED COMPRESSION IGNITION ENGINE

Mazda Motor Corporation, ...

1. A premixed compression ignition engine that includes an engine body formed with a combustion chamber and self-ignites a mixture of fuel and air in the combustion chamber, the engine comprising:a fuel injection device that injects fuel into the combustion chamber;
an ignition device having an electrode portion that faces an inside of the combustion chamber and ignites an air-fuel mixture in the combustion chamber to apply ignition energy to the air-fuel mixture; and
a control device that controls the ignition device and the fuel injection device so as to occur, in at least a part of an operation region of the engine, SPCCI combustion in which an air-fuel mixture formed in a first area of the combustion chamber that includes the electrode portion of the ignition device is burned by receiving the ignition energy applied from the ignition device, and thereafter, an air-fuel mixture formed in a second area of the combustion chamber located on an outer periphery of the first area is self-ignited and burned by a pressure rise in the combustion chamber due to the combustion of the air-fuel mixture in the first area,
wherein when the control device determines that the engine is operated in a high load operation region serving as an operation region in which an engine load is higher than a reference load set to a value equal to or more than half of a maximum load of the engine and in which the SPCCI combustion is executed, in a case where an air-fuel ratio of the air-fuel mixture in the first area is set to a first air-fuel ratio at an ignition timing of the ignition device and an air-fuel ratio of the air-fuel mixture in the second area is set to a second air-fuel ratio at the ignition timing, the fuel injection device is controlled so that both the first air-fuel ratio and the second air-fuel ratio become richer than a stoichiometric air-fuel ratio, that both the first air-fuel ratio and the second air-fuel ratio decrease as the engine load increases, that a decreasing rate of the second air-fuel ratio to an increase amount of the engine load is greater than a decreasing rate of the first air-fuel ratio to the increase amount of the engine load, that an air-fuel ratio in the entire combustion chamber becomes richer than the stoichiometric air-fuel ratio, and that an air-fuel ratio of the air-fuel mixture in the first area becomes leaner than an air-fuel ratio of the air-fuel mixture in the second area at the ignition timing, and
wherein when the control device determines that the engine is operated in a state in which the engine load is the reference load, the fuel injection device is controlled so that the air-fuel ratio in the entire combustion chamber becomes the stoichiometric air-fuel ratio and that the air-fuel ratio of the air-fuel mixture in the first area and the air-fuel ratio of the air-fuel mixture in the second area both become the stoichiometric air-fuel ratio at the ignition timing.

US Pat. No. 10,968,858

INTERNAL COMBUSTION ENGINE AND 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; and
a fuel injector configured to inject fuel into a combustion chamber of the engine body for combustion, and
the control device comprising a processor programmed to:
cause heat to be generated in the combustion chamber two times in stages to give a pressure waveform showing a change over time of a rate of cylinder pressure rise which has two peaks by controlling the fuel injector to successively perform at least a first main fuel injection and a second main fuel injection to cause premix charged compressive ignition of the fuel;
calculate a second premix time which is an estimated value of a premix time of fuel injected by the second main fuel injection with air;
reduce a fuel injection amount of the second main injection so that the second premix time becomes a predetermined first threshold value or more;
control the fuel injector to perform an after fuel injection after the second main fuel injection when the second premix time is less than the first threshold value,
calculate a second ignition delay time which is an estimated value of an ignition delay time of fuel injected by the second main fuel injection;
control the fuel injector to successively perform the first main fuel injection and the second main fuel injection so that a peak ratio which is a ratio of a first peak value of a first peak of the pressure waveform and a second peak value of a second peak falls in a predetermined range,
reduce the respective injection amounts of the first main fuel injection and the second main fuel injection so that the second premix time becomes the first threshold value or more and perform the after fuel injection when the second premix time is less than the first threshold value and the second ignition delay time is a predetermined second threshold value or more,
control the fuel injector to, by the after fuel injection, inject the respective amounts of fuel reduced from the injection amounts of the first main fuel injection and second main fuel injection; and
reduce an amount of fuel reduced from the fuel injection amount of the first main fuel injection more than an amount of fuel reduced from the injection amount of the second main fuel injection,
wherein an amount of fuel reduced from the fuel injection amount of the second main fuel injection is injected by the after fuel injection.

US Pat. No. 10,968,857

FUEL PUMP PRESSURE CONTROL STRUCTURE AND METHODOLOGY

Cummins Inc., Columbus, ...

1. A method of controlling a pump having a plurality of pumping elements including a first pumping element and a second pumping element configured to provide pressurized fuel to a common rail accumulator coupled to a plurality of fuel injectors configured to inject fuel into a corresponding plurality of cylinders of an engine, comprising:receiving at least one rail pressure value indicating a current fuel pressure in the accumulator; and
responding to a received at least one rail pressure value by controlling operation of the plurality of pumping elements during each potential pumping event of the plurality of pumping elements to generate actual pumping events during at least some of the potential pumping events to cause the at least one rail pressure value to remain within a desired range or achieve a desired pressure value;
wherein each of the potential pumping events of the first pumping element is concurrent with an injection event of the plurality of fuel injectors and each of the potential pumping events of the second pumping element is not concurrent with an injection event of the plurality of fuel injectors.

US Pat. No. 10,968,856

ENGINE CONTROL METHOD AND ENGINE SYSTEM

MAZDA MOTOR CORPORATION, ...

1. A control method for an engine which is mounted to a vehicle having steerable road wheels and mechanically coupled to drive road wheels of the vehicle, and which includes a spark plug and a fuel injector, the control method comprising:a combustion mode setting step of selecting a combustion mode of the engine between a first combustion mode in which an entirety of an air-fuel mixture in a cylinder of the engine is combusted by a propagation of a flame produced by the spark plug, and a second combustion mode in which at least a part of an air-fuel mixture in the cylinder is combusted by a self-ignition, on the basis of an operating state of the engine;
a decremental torque setting step of setting a torque reduction amount by which an output torque of the engine is to be reduced, on the basis of a steering angle of the steerable road wheels;
a first torque reduction step of controlling the spark plug based on the torque reduction amount set in the decremental torque setting step so as to retard an ignition timing, when the first combustion mode is selected in the combustion mode setting step; and
a second torque reduction step of controlling the fuel injector based on the torque reduction amount set in the decremental torque setting step so as to reduce a fuel injection amount, when the second combustion mode is selected in the combustion mode setting step.

US Pat. No. 10,968,855

CONTROL SUPPORT DEVICE, VEHICLE, CONTROL SUPPORT METHOD, RECORDING MEDIUM, LEARNED MODEL FOR CAUSING COMPUTER TO FUNCTION, AND METHOD OF GENERATING LEARNED MODEL

TOYOTA JIDOSHA KABUSHIKI ...

1. A control support device for supporting control of a vehicle using a learned model obtained by machine learning, the control support device comprising:a data acquisition unit configured to acquire sensor information, which is related to a state of an inside or an outside of a supplying vehicle that supplies parameters to be used for the machine learning;
a learning unit configured to generate a learned model by performing the machine learning using an input/output data set, which is the sensor information acquired by the data acquisition unit and is data including input parameters and an output parameter of the learned model; and
a transmission unit configured to transmit at least one of the generated learned model and an output parameter calculated by inputting sensor information of the vehicle, control of which is supported, to the generated learned model as an input parameter,
wherein the output parameter comprises at least one of
a catalyst warm-up retardation amount of the vehicle, or
a state of charge (SOC) value of the vehicle.

US Pat. No. 10,968,854

CONTROLLER AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE

TOYOTA JIDOSHA KABUSHIKI ...

1. A controller for an internal combustion engine, the internal combustion engine including a port injection valve that injects fuel into an intake passage, and the controller being configured to perform:a base injection amount calculation process of calculating a base injection amount, the base injection amount being an injection amount proportional to an amount of fresh air introduced into a cylinder of the internal combustion engine;
a division process of dividing the base injection amount into a synchronous injection amount and an asynchronous injection amount, the synchronous injection amount being an injection amount of an intake-synchronous injection in which the fuel is injected in synchronization with a period in which an intake valve is open, and the asynchronous injection amount being an injection amount of an intake-asynchronous injection in which the fuel is injected at a time advanced with respect to the intake-synchronous injection;
a required correction amount outputting process of outputting a required correction amount for the base injection amount;
a selective correction process of correcting the asynchronous injection amount according to the required correction amount and not correcting the synchronous injection amount; and
a manipulation process of manipulating the port injection valve according to the synchronous injection amount and the corrected asynchronous injection amount,
wherein the synchronous injection amount and the corrected asynchronous injection amount are injected from the port injection valve.

US Pat. No. 10,968,853

METHOD AND SYSTEM FOR AIR-FUEL RATIO CONTROL

Ford Global Technologies,...

13. A system comprising:a variable displacement engine comprising a heated exhaust gas sensor housed in an exhaust passage fluidly coupled to the variable displacement engine; and
a controller comprising computer-readable instructions stored on non-transitory memory thereof that when executed enable the controller to:
sequentially inject fuel from a fuel injector and fire cylinders of a cylinder group during a decelerated fuel shut-off (DFSO) event after measuring a maximum lean air-fuel ratio with the heated exhaust gas sensor to provide an expected air-fuel ratio deviation from the measured maximum lean air-fuel ratio during the DFSO event;
determining an air-fuel ratio variation for each cylinder based on an error between an actual air-fuel ratio deviation from the measured maximum lean air-fuel ratio during the DFSO event relative to the expected air-fuel ratio deviation; and
adjusting future fuel injections from the injector based on the error.

US Pat. No. 10,968,852

SYSTEMS AND METHODS FOR FUEL FILTER DIAGNOSTICS

Ford Global Technologies,...

1. A method, comprising:responsive to an engine fuel rail pressure decreasing below a threshold pressure, determining degradation of any of a plurality of engine fuel system components including a fuel injector, a fuel regulator, and a fuel line coupled to a fuel pump;
if the determining of degradation determines degradation of any of the plurality of engine fuel system components has occurred, indicating the degradation without performing a fuel filter cleaning routine;
if the determining of degradation does not determine degradation of any of the plurality of engine fuel system components has occurred, then adjusting operation of the fuel pump to perform the fuel filter cleaning routine, and following performance of the fuel filter cleaning routine, responsive to the engine fuel rail pressure remaining below the threshold pressure, indicating fuel system degradation.

US Pat. No. 10,968,851

BOOSTER DEVICE FOR DRIVING INJECTOR

Hitachi Automotive System...

1. A booster device for driving an injector, comprising:a coil;
a switching element which is connected to the coil in series and turns on and off conduction of the coil; a capacitor for applying a voltage to the injector;
a diode having an anode connected to a connection point of the coil and the switching element and a cathode connected to the capacitor;
a voltage sensor which measures a voltage of the capacitor; and
a control circuit which controls the switching element to be turned on and off so as to increase a charging speed of the capacitor when a decision period indicating a period corresponding to an injection interval of the injector is equal to or less than a first threshold value, wherein
the control circuit measures as the first threshold value a period corresponding to a boost time based on the voltage of the capacitor measured by the voltage sensor.

US Pat. No. 10,968,850

CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE HAVING PRESSURE INCREASING DEVICE

Toyota Jidosha Kabushiki ...

1. A control device for an internal combustion engine, the control device comprising:a fuel injector configured to inject fuel;
a pressure increasing device that is provided upstream of the fuel injector and is configured to increase a pressure of fuel supplied to the fuel injector; and
an electronic control unit configured to calculate an actual fuel injection amount based on a difference between a first fuel pressure in the fuel injector when the pressure increasing device increases the fuel pressure without fuel injection by the fuel injector and a second fuel pressure in the fuel injector when the fuel injector performs fuel injection while driving of the pressure increasing device, wherein:
the electronic control unit is configured to store in advance a stored fuel injection amount that is a fuel injection amount determined based on the pressure of fuel supplied to the pressure increasing device, a fuel injection time of the fuel injector, and a pressure increase time of the pressure increasing device; and
the electronic control unit is configured to correct at least one of the fuel injection time and the pressure increase time using a correction value such that the actual fuel injection amount and the stored fuel injection amount are made close to each other and control the fuel injector based on the corrected fuel injection time or control the pressure increasing device based on the corrected pressure increase time.

US Pat. No. 10,968,849

ENGINE SYSTEM

HONDA MOTOR CO., LTD., T...

1. A batteryless engine system comprising:a fuel tank for containing fuel;
an internal combustion engine;
a generator that is driven by the internal combustion engine and produces electric power;
a recoil starter for starting the internal combustion engine;
a control unit that operates with electric power generated by the generator,
an injector that operates with electric power generated by the generator, is controlled by the control unit, and supplies fuel to the internal combustion engine;
a fuel pump that operates with electric power generated by the generator, is controlled by the control unit, and supplies fuel contained in the fuel tank to the injector,
an ignition apparatus that ignites fuel compressed in the internal combustion engine;
a power supply line that supplies electric power generated by the generator to the ignition apparatus, the injector, and the fuel pump;
a switch provided for the power supply line, the switch being switched from OFF to ON when electric power generated by the generator is supplied to the ignition apparatus, the injector, and the fuel pump, and the switch being switched from ON to OFF when electric power generated by the generator is not supplied to the ignition apparatus, the injector, and the fuel pump; and
a detection unit that detects a number-of-rotations of the internal combustion engine,
wherein the control unit, in a starting period of the internal combustion engine, which is started using the recoil starter, determines whether or not the internal combustion engine can perform self-sustaining rotation based on the number-of-rotations, and if the internal combustion engine cannot perform self-sustaining rotation, reduces a load for the recoil starter by not supplying electric power from the generator to the ignition apparatus, the injector, and the fuel pump by maintaining the switch being OFF, and if the internal combustion engine can perform self-sustaining rotation, supplies electric power from the generator to the ignition apparatus, the injector, and the fuel pump by switching the switch from OFF to ON, and
wherein the control unit, in a starting period of the internal combustion engine, which is started using the recoil starter, obtains acceleration from the number-of-rotations detected by the detection unit, does not supply electric power from the generator to the ignition apparatus, the injector, and the fuel pump in a period in which the acceleration is greater than or equal to a prescribed acceleration, and supplies electric power from the generator to the ignition apparatus, the injector, and the fuel pump when the acceleration is no longer greater than or equal to the prescribed acceleration.

US Pat. No. 10,968,848

EGR DEVICE

SUBARU CORPORATION, Toky...

1. An exhaust gas recirculation (EGR) device comprising:an EGR flow path configured to convey exhaust gas from an exhaust flow path of an engine to an intake flow path;
an EGR valve disposed on the EGR flow path;
a stepping motor configured to drive the EGR valve to open and close;
a motor driver configured to supply driving power to the stepping motor;
a return spring configured to urge the EGR valve in a valve closing direction;
a speed detector configured to detect an output shaft rotation speed of the engine; and
an opening degree estimator configured to estimate an opening degree of the EGR valve,
wherein the motor driver changes a drive frequency of the stepping motor according to variations of the output shaft rotation speed detected by the speed detector and the opening degree estimated by the opening degree estimator.

US Pat. No. 10,968,847

DEVICE AND METHOD FOR CONTROLLING INTERNAL COMBUSTION ENGINE

TOYOTA JIDOSHA KABUSHIKI ...

1. A control device for an internal combustion engine, wherein the internal combustion engine includes a fuel tank containing a fuel, a fuel injection valve configured to inject the fuel from the fuel tank, a cylinder into which an air-fuel mixture including the fuel injected by the fuel injection valve is drawn, an igniter configured to spark-ignite the air-fuel mixture drawn into the cylinder, an exhaust passage through which exhaust gas discharged from the cylinder flows, an intake passage configured to draw intake air into the cylinder, a three-way catalyst arranged in the exhaust passage, a canister configured to trap fuel vapor generated in the fuel tank, a purge passage configured to draw the fuel vapor trapped in the canister into the intake passage, and a purge valve configured to adjust a flow rate of the fuel vapor flowing through the purge passage, the control device comprising:processing circuitry, wherein
the processing circuitry is configured to execute
a purging process that draws the fuel vapor trapped in the canister into the intake passage by controlling the purge valve,
a fuel feeding process that feeds the air-fuel mixture, which includes the fuel supplied to the cylinder, to the exhaust passage without burning the air-fuel mixture in the cylinder, and
a fuel supply process that supplies fuel to the cylinder when the fuel feeding process is being performed, and
the processing circuitry is further configured to perform the fuel supply process by performing
the purging process,
a process for calculating a fuel feeding amount that is an amount of fuel supplied to the cylinder per unit time when the fuel feeding process is being performed,
a process for calculating a required injection amount that is an injection amount per injection of the fuel injection valve necessary to supply the fuel feeding amount of fuel to the cylinder, and
a process for supplying the required injection amount of fuel to the cylinder through the purging process when the required injection amount is less than a minimum injection amount of the fuel injection valve.

US Pat. No. 10,968,846

METHOD AND SYSTEM FOR PURGE CONTROL

Ford Global Technologies,...

1. A method for an engine of a vehicle, comprising:deactivating one or more cylinders in response to a request to purge fuel vapors from a fuel vapor canister of an evaporative emissions control system, the fuel vapor canister filled with an adsorbent; and
deactivating purge and reactivating the one or more deactivated cylinders in response to an indication of engine stall.

US Pat. No. 10,968,845

CONTROL DEVICE FOR COMPRESSION IGNITION ENGINE

Mazda Motor Corporation, ...

1. A control device for a compression ignition engine including a combustion chamber, an injector configured to inject fuel into the combustion chamber, and an ignition plug configured to ignite a mixture gas where the fuel injected from the injector is mixed with air, the control device comprising:an air amount adjusting mechanism including at least a throttle valve, configured to adjust an amount of air introduced into the combustion chamber; and
a processor configured to execute a combustion controlling module to control the injector, the ignition plug, and the air amount adjusting mechanism so that partial compression ignition combustion, in which spark ignition (SI) combustion of a portion of an air-fuel ratio (A/F)-lean mixture gas having an air-fuel ratio higher than a stoichiometric air-fuel ratio is performed by a jump-spark ignition using the ignition plug, and compression ignition (CI) combustion of the remaining mixture gas is performed by a self-ignition, is carried out in a specific range where an engine load is low,
wherein in a first range of the specific range excluding at least a part of high-load side, the combustion controlling module causes the ignition plug to perform a normal ignition in which a spark is generated in a late period of a compression stroke or an early period of an expansion stroke to start the SI combustion, and a preceding ignition in which a spark is generated at an ignition timing included in an intake stroke or the compression stroke and earlier than the normal ignition by a given amount or more, and causes the injector to inject fuel at an injection timing where fuel is present inside the combustion chamber before the preceding ignition,
wherein in a second range of the specific range where the engine load is higher than in the first range, the combustion controlling module at least performs the normal ignition and limits the execution of the preceding ignition; and
wherein the combustion controlling module performs the preceding ignition in a middle period or a late period of the intake stroke so that a flame propagation of the mixture gas is not caused.

US Pat. No. 10,968,844

METHOD FOR DETERMINING THE CURRENT COMPRESSION RATIO OF AN INTERNAL COMBUSTION ENGINE DURING OPERATION

Vitesco Technologies GmbH...

1. A method for determining the current compression ratio of an internal combustion engine during operation, comprising:measuring dynamic pressure oscillations, assignable to one cylinder of the internal combustion engine, in an intake tract or in an outlet tract of the internal combustion engine at a defined operating point during normal operation, generating a corresponding pressure oscillation signal from the measured dynamic pressure oscillations, and at the same time, determining a crankshaft phase angle signal of the internal combustion engine,
from the pressure oscillation signal and using discrete Fourier transformation, determining at least one actual value of at least one characteristic of at least one selected signal frequency of the measured pressure oscillations in relation to the crankshaft phase angle signal, and
determining a current compression ratio of the internal combustion engine on the basis of the at least one determined actual value of the at least one characteristic, based on reference values of the respectively corresponding characteristic of the respectively identical signal frequency for different compression ratios.

US Pat. No. 10,968,843

SYSTEM, APPARATUS AND METHOD FOR CLEAN, MULTI-ENERGY GENERATION

20. A method for utilizing multiple energy generation sources, said method comprising:injecting, in a first input of a cylinder configured to selectively admit hydrogen gas, said hydrogen gas driving said cylinder;
injecting, in a second input of said cylinder configured to selectively admit a compressed air, said compressed air driving said cylinder,
injecting, in a third input of said cylinder configured to selectively admit externally-generated steam, said externally-generated steam driving said cylinder, and
controlling, by an engine controller, said engine controller operating to selectively provide inputs to respective ones of said first, second and third inputs of said hydrogen gas, compressed air and externally-generated steam.

US Pat. No. 10,968,842

SYSTEMS AND METHODS FOR DIAGNOSING AN ENGINE

TRANSPORTATION IP HOLDING...

1. A method for an engine operationally connected to a generator, comprising:with a sensor, measuring at least one parameter associated with the generator during operation;
with a controller having a processor, determining a torque profile associated with the generator based on the at least one measured parameter; with the controller, diagnosing a condition of the engine, said diagnosing comprising isolating the condition of the engine as one of either degradation or failure based on a frequency content of the determined torque profile.

US Pat. No. 10,968,841

FIRING FRACTION MANAGEMENT IN SKIP FIRE ENGINE CONTROL

TULA TECHNOLOGY, INC., S...

1. An engine controller suitable for directing operation of an engine having a plurality of working chambers in a skip fire manner, the engine controller comprising:a firing fraction determining unit arranged to select an operational firing fraction from a set of available firing fractions; and
a first order sigma delta converter based firing controller arranged to direct working cycle firings in a skip fire manner that delivers the selected operational firing fraction.

US Pat. No. 10,968,840

METHOD TO MANUFACTURE A THROTTLE VALVE FOR AN INTERNAL COMBUSTION ENGINE PROVIDED WITH A CONDITIONING CIRCUIT

MARELLI EUROPE S.p.A., C...

1. A method to manufacture a throttle valve (1) for an internal combustion engine comprising a valve body (2) entirely made of a first metallic material; an actuating device, which controls the rotation of a throttle plate (5) around a rotation axis (7); an actuating device conditioning circuit (17) defined in the valve body (2) comprising a tube (19) for the passage of a conditioning fluid, which is housed in a seat (18) defined in the valve body (2) and is made of a second metallic material able to conduct heat; and a substantially uniform layer (S) of a structural and heat-conducting resin interposed between the seat (18) and the tube (19) and applied on the entire available surface of the seat (18); the method comprising the steps of:manufacturing the valve body (2) provided with the seat (18) by causing the first metal material to undergo a die casting process;
manufacturing the tube (19) in the second metallic material chosen among steel, preferably stainless steel, or aluminum or copper;
applying a trace (T) of the structural and thermosetting resin on the bottom of the seat (18); and
inserting the tube (19) into the seat (18) such that the resin present on the bottom of the seat (18) moves upwards so as to completely skim an inner surface (20) of the seat (18) and partially the outer surface (21) of the tube (19) so as not to protrude from the seat (18) towards an upper surface (22) of the valve body (2) and so as to obtain a substantially uniform layer (S) of the structural and thermosetting resin, interposed between the seat (18) and the tube (19).

US Pat. No. 10,968,839

ELECTRONIC FUEL INJECTION THROTTLE BODY ASSEMBLY

Holley Performance Produc...

1. A throttle body assembly, comprising:a throttle body having an upper inlet and a lower outlet configured to mount to an internal combustion engine;
at least one bore extending through said throttle body, wherein the at least one bore defines said upper inlet and said lower outlet of said throttle body assembly;
a fuel component cover located on a first side of said throttle body and an electronic control unit located on a second side of said throttle body, wherein said first side is about 90 degrees from said second side;
at least one fuel injector disposed at least partially within said throttle body, wherein said at least one fuel injector is parallel to a mounting base of said throttle body;
at least one connecting fuel passage extending from a fuel inlet passage, comprising a cross-channel passageway and a vertical passageway at least partially disposed within said fuel component cover and extending for fluid communication between said at least one fuel injector and a second fuel injector, and wherein said vertical passageway is capable of feeding the second fuel injector which is capable of being positioned at least partially within said throttle body relative to the same at least one bore as the at least one fuel injector;
a throttle shaft extending though the throttle body and at least one bore, wherein said throttle shaft is perpendicular to a horizontal direction between a first end and a second end of said at least one fuel injector; and
said at least one fuel injector directing fuel into a channel of at least one fuel distribution ring, said at least one fuel distribution ring having a plurality of fuel apertures directing fuel into a bore of said throttle body.

US Pat. No. 10,968,838

ENGINE SPEED CONTROL DEVICE

YANMAR POWER TECHNOLOGY C...

1. An engine speed control device for an engine, the engine speed control device at least comprising:an engine speed detecting means configured to detect an engine speed of the engine;
a cooling water temperature detecting means configured to detect a temperature of a cooling water of the engine;
a rack position detecting means configured to detect a rack position of a fuel injection pump; and
a lubricating oil temperature detecting means configured to detect a lubricating oil temperature of the engine, wherein:
the engine speed control device is configured to perform:
a first PID gain calculation step of calculating a target engine speed to calculate a first PID gain based on an engine speed deviation between the target engine speed and an engine speed detected by the engine speed detecting means,
a target rack position calculation step of correcting the first PID gain using a cooling water temperature correction factor based on a cooling water temperature detected by the cooling water temperature detecting means to thereby calculate a target rack position of the fuel injection pump,
a second PID gain calculation step of calculating a second PID gain based on a rack position deviation between the target rack position and a rack position detected by the rack position detecting means, and
a rack control signal producing step of correcting the second PID gain using a lubricating oil temperature correction factor based on a lubricating oil temperature detected by the lubricating oil temperature detecting means to thereby produce a rack control signal;
the engine speed control device is further configured to control the engine speed by controlling the rack position based on the rack control signal;
the cooling water temperature correction factor applied to correction of the first PID gain is prevented from being applied to correction of the second PID gain; and
the lubricating oil temperature correction factor applied to correction of the second PID gain is prevented from being applied to correction of the first PID gain.

US Pat. No. 10,968,837

SYSTEMS AND METHODS UTILIZING TURBINE COMPRESSOR DISCHARGE FOR HYDROSTATIC MANIFOLD PURGE

BJ Energy Solutions, LLC,...

1. A dual fuel gas turbine engine, the dual fuel gas turbine engine comprising:a primary compressor having an inlet opening and an outlet opening;
a combustion chamber in fluid communication with the outlet opening of the primary compressor and positioned to receive compressed air from the outlet opening of the primary compressor, the combustion chamber having a first fuel manifold and a second fuel manifold, the combustion chamber having a first mode of operation in which the first fuel manifold is configured to provide a first fuel to the combustion chamber and the second fuel manifold is unused, the combustion chamber having a second mode of operation in which the second fuel manifold circuit is configured to provide a second fuel to the combustion chamber and the first fuel manifold circuit is unused; and
a manifold pressurization system comprising:
a purge inlet in fluid communication with the primary compressor adjacent the outlet opening;
a common purge line connected at an upstream end to the purge inlet, the common purge line configured to provide purge air at a purge pressure equal to or greater than a combustion pressure within the combustion chamber to the first or second fuel manifold;
a first purge line connected at a downstream end thereof to the first fuel manifold circuit;
a second purge line connected at a downstream end thereof to the second fuel manifold circuit; and
a control valve connected to a downstream end of the common purge line, an upstream end of the first purge line, and an upstream end of the second purge line, the control valve having a first position in which the control valve connects the common purge line with the second purge line to supply the purge air to the second fuel manifold circuit, the control valve having a second position in which the control valve connects the common purge line with the first purge line to supply the purge air to the first fuel manifold circuit, the control valve being in the first position when the combustion chamber is in the first mode of operation and being in the second position when the combustion chamber is in the second mode of operation.

US Pat. No. 10,968,836

METHOD FOR CONTROLLING FUEL DISTRIBUTION IN A GAS TURBINE ENGINE WITH MULTIPLE COMBUSTION ZONES

1. A method for distributing fuel in a gas turbine engine comprising:determining a ratio of air flow burnt to total air flow through all combustion zones in the gas turbine engine,
wherein determining the ratio of air flow burnt through all combustion zones comprises establishing a total weighted sum of enthalpy per unit mass of combustion products,
wherein establishing the total weighted sum of enthalpy per unit mass of combustion products comprises determining a primary weighted sum and a secondary weighted sum,
wherein the primary weighted sum is an enthalpy per unit mass of combustion products at a primary combustion temperature in a primary combustion zone,
wherein the secondary weighted sum is an enthalpy per unit mass of combustion products at a secondary combustion temperature in a secondary combustion zone;
determining a transient fraction of the air flow to be burnt during a rapid transient condition,
wherein determining the transient fraction uses a ratio of injector fuel flow and inlet pressure at a combustor; and
distributing fuel in the gas turbine engine using the determined ratio of air flow burnt to total air flow through all combustion zones in the gas turbine engine to achieve a predetermined flame temperature.

US Pat. No. 10,968,835

APPARATUS FOR GAS TURBINE ENGINES

ROLLS-ROYCE plc, London ...

1. An apparatus for a gas turbine engine, the apparatus comprising:a core engine casing having a longitudinal axis and including: an inner wall defining at least part of a core airflow path through the gas turbine engine; an outer wall defining an external surface of the core engine casing, a first cavity being defined between the inner wall and the outer wall of the core engine casing;
a plurality of guide vanes extending radially from the outer wall of the core engine casing;
a torque box defined within the first cavity of the core engine casing and at least partially overlapping axially with the plurality of guide vanes, the torque box defining a second cavity; and
an accessory gear box positioned within the second cavity of the torque box,
wherein the inner wall of the core engine casing includes a bleed air valve and a conduit extending from the bleed air valve and through the second cavity of the torque box.

US Pat. No. 10,968,834

SHAFT ASSEMBLY FOR AIRCRAFT ENGINE

1. An aircraft engine comprising: an engine shaft; a first transmission shaft in driving engagement with the engine shaft and a second transmission shaft concentric with the first transmission shaft and in driving engagement with the first transmission shaft, the second transmission shaft drivingly engageable to an engine accessory, the first and second transmission shafts rotatable about an axis; and at least two axially spaced apart annular ring seals disposed radially between the first and second transmission shafts, the at least two annular ring seals biased against both of the first and second transmission shafts.

US Pat. No. 10,968,833

ACCESSORY GEARBOX FOR A GAS TURBINE ENGINE

1. A gas turbine engine comprising:a bypass casing defining an outer wall of a bypass duct of the gas turbine engine, the bypass casing including a first recess formed in the outer wall of the bypass duct, the first recess reducing a cross-sectional area of the bypass duct in a region of the first recess, an inner wall of the bypass duct including a corresponding second recess configured to mitigate a reduction in the cross-sectional area of the bypass duct; and
an accessory gearbox aligned in an axial direction of the gas turbine engine, the accessory gearbox including a lower portion and an upper portion, wherein the lower portion of the accessory gearbox is at least partially disposed in the first recess formed in the outer wall of the bypass duct, and wherein the upper portion of the accessory gearbox partially protrudes from the first recess into the bypass duct in a radial direction of the gas turbine engine such that the accessory gearbox is in fluid communication with an airflow through the bypass duct.

US Pat. No. 10,968,832

COMBINED OVERSPEED AND FUEL STREAM SELECTOR SYSTEMS

HONEYWELL INTERNATIONAL I...

1. A combined overspeed and fuel stream selector system, comprising:a conduit network having a primary fuel inlet, a secondary fuel inlet, a primary fuel outlet, and a secondary fuel outlet;
a shutoff valve fluidly coupled between the primary fuel inlet and the primary fuel outlet, the shutoff valve having a pressurizing valve control chamber and a pressuring valve element fluidly coupled to an outlet of a primary fuel metering valve upstream of a Discharge Select Valve (DSV);
the DSV fluidly coupled to the shutoff valve, the DSV including a first DSV control chamber opposite a second DSV control chamber;
the primary fuel metering valve fluidly coupled between the primary fuel inlet and the DSV, the primary fuel metering valve upstream from the shutoff valve and the DSV in a direction of fuel flow through the primary fuel inlet, the primary fuel metering valve having the outlet fluidly coupled to the shutoff valve and the DSV;
a bypass valve upstream of the primary fuel metering valve in the direction of fuel flow through the primary inlet, the bypass valve having a bypass valve control chamber fluidly coupled to the outlet of the primary fuel metering valve downstream of the shutoff valve;
a servo valve fluidly coupled to the pressurizing valve control chamber of the shutoff valve, to the DSV, and to the bypass valve through the conduit network, and the servo valve is controllable to switch the combined overspeed and fuel stream selector system between:
a standard operation mode in which the shutoff valve is maintained in an open position, the bypass valve is maintained in a pressure regulating position, and fuel received at the primary fuel inlet is directed through the shutoff valve, through the DSV, and to the primary fuel outlet by a first servo valve pressure applied to the first DSV control chamber and the pressurizing valve control chamber, and the second DSV control chamber in fluid communication with the outlet of the primary fuel metering valve; and
a backup operation mode in which the shutoff valve is maintained in a closed position to block fuel flow from the primary fuel inlet to the primary fuel outlet, the bypass valve is maintained in an open position and the DSV reroutes fuel flow received at the secondary fuel inlet to the primary fuel outlet.

US Pat. No. 10,968,831

GAS TURBINE AND COMPRESSOR MODULE FOR ON-SHORE LNG PLANTS

NUOVO PIGNONE SRL, Flore...

1. A modular gas turbine system for on-shore LNG plants, the modular gas turbine system comprising:a base plate having a top side and a bottom side and supporting on the top side thereof equipment including at least a gas turbine engine, a control and electrical room wired to the gas turbine engine, and at least one auxiliary of the gas turbine engine;
at least one compressor, mechanically coupled to and driven by the gas turbine engine, comprising an inlet and an outlet;
an inlet duct connected to the inlet and an outlet duct connected to the outlet;
a supporting structure extending from a ground level and having a top surface supporting the base plate and the at least one compressor, the supporting structure comprising an extension extending vertically from a ground level such that the inlet duct and the outlet duct extend between the at least one compressor and the ground level.

US Pat. No. 10,968,830

SYSTEMS AND METHODS FOR COOLING ELECTRONICS AND ELECTRICAL MACHINERY IN A HYBRID ELECTRIC AIRCRAFT

Rolls-Royce North America...

1. A system for cooling an electrical component in association with a gas turbine engine, the system comprising:an evaporation chamber configured to contain the electrical component and a cooling liquid in contact with the electrical component, wherein the evaporation chamber comprises a liquid input port, a liquid outlet port, a pumped liquid input port, and a vapor output port, wherein the cooling liquid evaporates while cooling the electrical component and emits coolant vapor via the vapor output port and wherein the evaporation chamber receives condensed coolant liquid via the liquid input port;
a coolant pump configured to receive at least a portion of the cooling liquid from the liquid output port of the evaporation chamber, and to pump the cooling liquid to the pumped liquid input port of the evaporation chamber to direct a plurality of liquid jets at portions of the electrical component;
an air cycle machine comprising a heat exchanger and a turbine, wherein the air cycle machine is configured to receive engine bleed air from the gas turbine engine and cool the engine bleed air, and wherein the cooled engine bleed air comprises a cooling air flow; and
a condenser assembly configured to:
receive the coolant vapor from the vapor output port of the evaporation chamber,
receive the cooling air flow from the air cycle machine, and
cool the coolant vapor using the cooling air flow to cause the coolant vapor to condense.

US Pat. No. 10,968,829

COOLING AN IGNITER BODY OF A COMBUSTOR WALL

Raytheon Technologies Cor...

1. An assembly for a turbine engine, the assembly comprising:an igniter;
a combustor wall including a shell, a heat shield attached to the shell, and an annular body extending vertically between the shell and the heat shield, the annular body defining an igniter aperture in the combustor wall that receives the igniter; and
a mount mounting the igniter to the combustor wall;
wherein a funnel shaped portion of the shell extends circumferentially around the annular body and defines a cooling aperture that is fluidly coupled with a cooling cavity vertically between the shell and the heat shield;
wherein the annular body has a distal end surface, the annular body extends vertically from the heat shield to the distal end surface, and the distal end surface contacts and forms a seal with an interior surface of the shell that faces the heat shield.

US Pat. No. 10,968,828

ANTI-ICING SYSTEM FOR A GAS TURBINE

GENERAL ELECTRIC COMPANY,...

18. A nozzle head for an anti-icing system, comprising:a stationary portion configured to couple to a nozzle, wherein the nozzle comprises a first wall having a plurality of orifices for directing jets of fluid into an air intake system of a gas turbine system; and
a rotating portion coupled to the stationary portion, wherein the stationary portion and the rotating portion comprises a second wall, wherein the stationary portion and the rotating portion together enclose the plurality of orifices within the second wall, the second wall being radially disposed about the first wall having the plurality of orifices, the rotating portion comprises a single outlet configured to combine the jets of fluid into a single jet of fluid that exits into the air intake system, and an eccentric jet angular momentum of the single jet of fluid is configured to drive rotation of the rotating portion relative to the stationary portion.

US Pat. No. 10,968,827

ANTI-ICING APPARATUS FOR A NOSE CONE OF A GAS TURBINE ENGINE

1. A fan nose cone for a gas turbine engine having an axis of rotation and a forward end relative to a primary airflow path through the engine, the fan nose cone comprising:an axially symmetric shell having a convex external surface and an internal surface, the shell having an opening in a forward end of the shell, the opening adapted to be in communication with a source of heated pressurized air when the nose cone is installed on the engine; and
an axially symmetric deflector disposed forward of the opening in the shell, the deflector having a rearward surface disposed forward of and cooperating with the convex external surface of the shell to define an annular air flow channel therebetween for directing heated pressurized air exiting from the opening, the rearward surface configured to radially outwardly direct said heated pressurized air to flow in a downstream direction over the convex external surface of the shell, the deflector having a central protrusion that is rearwardly convex and that merges radially outwardly with a concave rearward surface of revolution that terminates at a circumferential edge of the deflector.

US Pat. No. 10,968,826

COMBINED POWER GENERATION SYSTEM USING PRESSURE DIFFERENCE

Doosan Heavy Industries C...

1. A combined power generation system performing pressure difference power generation, the combined power generation system comprising:a pressure difference power generation facility for generating electricity by using a pressure change of natural gas;
a heating unit configured to heat the natural gas discharged from the pressure difference power generation facility;
a gas turbine power generation facility comprising a compressor that takes in and compresses external air to produce compressed air, a combustor that mixes the compressed air and the natural gas discharged from the heating unit and burns the resulting fuel-and-gas mixture to produce a flue gas, a turbine provided with turbine blades rotated by the flue gas, and a generator connected to and rotated by the turbine to generate electricity;
a supercritical fluid power generation facility for generating electricity by using a supercritical working fluid heated by the flue gas produced by the gas turbine power generation facility;
a waste-heat recovery heat exchange facility configured such that heat exchange occurs between the flue gas produced by the gas turbine power generation facility and the working fluid to be used in the supercritical fluid power generation facility;
a liquefied natural gas (LNG) heat exchange facility in which heat exchange occurs between the working fluid discharged from the supercritical fluid power generation facility and liquefied natural gas so that the working fluid is cooled and the liquefied natural gas is heated to be re-gasified into natural gas, the cooled working fluid flowing into the waste-heat recovery heat exchange facility to undergo heating and then flowing into the supercritical fluid power generation facility; and
a working fluid heat exchanger for performing heat exchange between the working fluid having passed through the LNG heat exchange facility and the working fluid discharged from the supercritical fluid power generation facility,
wherein the cooled working fluid from the LNG heat exchange facility flows into the waste-heat recovery heat exchange facility via first and second flow channels formed by a working fluid flow control valve, the cooled working fluid of the second flow channel being supplied to the waste-heat recovery heat exchange facility via the working fluid heat exchanger, such that the working fluid having passed through the LNG heat exchanger is supplied to the waste-heat recovery heat exchange facility via the working fluid flow control valve and the first flow channel and is supplied to the working fluid heat exchanger via the working fluid flow control valve and the second flow channel,
wherein the combined power generation system further comprises a bypass channel having exactly two ports, the exactly two ports including
an input port connected to the second flow channel of the working fluid flow control valve, between an output of the working fluid flow control valve and an input of the working fluid heat exchanger, the input of the working fluid heat exchanger provided on the second flow channel, and
an output port connected to an input of the waste-heat recovery heat exchange facility, between an output of the working fluid heat exchanger and the input of the waste-heat recovery heat exchange facility, and
wherein the bypass channel enables the working fluid cooled through the heat exchange performed in the LNG heat exchange facility to bypass the working fluid heat exchanger to maintain the working fluid flowing into the LNG heat exchange facility at a high temperature when an amount of the liquefied natural gas to be re-gasified increases,
the combined power generation system further comprising an LNG storage facility for storing the liquefied natural gas to be introduced into the LNG heat exchange facility,
wherein the LNG storage facility comprises an LNG heating facility configured to heat the stored liquefied natural gas for re-gasification of the liquefied natural gas,
wherein the LNG heat exchange facility includes a first LNG path in which heat from the working fluid discharged from the supercritical fluid power generation facility is transferred to the liquefied natural gas supplied from the LNG storage facility and from which heated liquefied natural gas of the first LNG path is output to the pressure difference power generation facility, and
wherein the LNG heating facility includes a second LNG path in which the liquefied natural gas supplied from the LNG storage facility via the LNG heat exchange facility is heated by sea water and from which the liquefied natural gas heated by the sea water is supplied to an input of the first LNG path.

US Pat. No. 10,968,825

FLOW MULTIPLIER SYSTEMS FOR AIRCRAFT

The Boeing Company, Chic...

8. A flow multiplier system for use in an aircraft, the flow multiplier system comprising:a turbo-compressor including a compressor, a turbine, and a drive shaft coupled between the compressor and the turbine, the turbine having a turbine inlet and a turbine outlet, the compressor having a compressor inlet and a compressor outlet, the compressor outlet fluidly coupled to an ejector disposed in a gas turbine engine;
a supply line fluidly coupling a compressed air tank to the turbine inlet;
a valve coupled to the supply line to control a flow of pressurized air from the compressed air tank to the turbine inlet; and
a controller configured to, based on an input signal requesting to increase output power of the gas turbine engine, send a command signal to open the valve to enable the flow of the pressurized air from the compressed air tank to the turbine inlet, the turbine to drive the compressor to create high pressure air at the compressor outlet, and the ejector to provide the high pressure air into the gas turbine engine to increase the output power of the gas turbine engine.

US Pat. No. 10,968,824

COMPOUND CYCLE ENGINE

19. A compound cycle engine comprising:a plurality of internal combustion engines;
wherein each of the plurality of the internal combustion engines includes:
a housing defining at least one combustion chamber of variable volume;
intake ports connected to inlet pipes for admitting compressed air;
exhaust ports for discharging an exhaust gas to a turbine;
at least one fuel injector;
at least one igniter for combusting an air fuel mixture in the at least one combustion chamber; and
an output shaft drivingly engaging to the plurality of the internal combustion engines;
wherein the turbine includes a plurality of turbine inlets;
wherein a number of the plurality of the turbine inlets is equal to a number of the plurality of the internal combustion engines in the compound cycle engine;
wherein each of the plurality of the turbine inlets fluidly communicates with a respective one of the exhaust ports of the plurality of the internal combustion engines;
wherein the plurality of the turbine inlets is disposed relatively to one to another on a circumferential surface of the turbine;
wherein the plurality of the turbine inlets is space apart in a circumferential direction relatively to one to another;
wherein the turbine is drivingly engaged with the output shaft through a transmission; and
wherein the transmission is positioned between a first one and a second one of the plurality of the internal combustion engines along the output shaft.

US Pat. No. 10,968,823

METHOD AND SYSTEM FOR WEAR ESTIMATION

Caterpillar Inc., Peoria...

1. A method for estimating wear of at least one component of a valve train of an internal combustion engine, comprising:receiving sensor information and fuel commands indicative of an amount of fuel supplied to at least one combustion chamber of the internal combustion engine;
determining an incremental increase in an amount of wear of the at least one component of the valve train of the internal combustion engine based on at least the sensor information and the fuel commands;
determining an updated amount of wear based on the incremental increase in the amount of wear; and
outputting a notification indicative of the updated amount of wear.

US Pat. No. 10,968,822

LINEAR PISTON ENGINE FOR OPERATING EXTERNAL LINEAR LOAD

470088 Ontario Limited, ...

1. A linear piston engine comprising:a) a housing having a combustion chamber located between opposing first and second piston chambers;
b) a first piston assembly located within the first piston chamber, the first piston assembly comprising:
i) a first piston for reciprocating within the first piston chamber, the first piston being located adjacent to the combustion chamber;
ii) a first crankshaft coupled to the first piston for guiding the first piston through a power stroke and a return stroke; and
iii) a first linear output member coupled to the first piston for providing a first linear output motion based on reciprocating motion of the first piston; and
wherein a first crankshaft concentric longitudinal axis of the first crankshaft intersects a first piston concentric longitudinal axis of the first piston at a first perpendicular angle, and
c) a second piston assembly located within the second piston chamber, the second piston assembly comprising:
i) a second piston for reciprocating within the second piston chamber, the second piston being located adjacent to the combustion chamber;
ii) a second crankshaft coupled to the second piston for guiding the second piston through a power stroke and a return stroke; and
iii) a second linear output member coupled to the second piston for providing a second linear output motion based on reciprocating motion of the second piston, and
wherein a second crankshaft concentric longitudinal axis of the second crankshaft intersects a second piston concentric longitudinal axis of the second piston at a second perpendicular angle.

US Pat. No. 10,968,821

PISTON ROD AND FREE PISTON ENGINE

Aquarius Engines (A.M.) L...

1. A piston assembly, comprising:a piston configured to be slidably mounted within a cylinder having a first combustion chamber at a first end and a second combustion chamber at an opposing second end;
a piston rod having an interconnecting flow passageway extending through the piston;
at least one first opening in a first side of the piston rod configured to move into and out of the first combustion chamber to selectively communicate gas to the first combustion chamber; and
at least one second opening in a second side of the piston rod configured to move into and out of the second combustion chamber to selectively communicate gas to the second combustion chamber,
wherein the piston is configured such that when the first opening is outside the first combustion chamber the second opening is inside the second combustion chamber, and when the first opening is inside the first combustion chamber the second opening is outside the second combustion chamber.

US Pat. No. 10,968,820

METHOD OF COMBUSTING FUEL IN A ROTARY INTERNAL COMBUSTION ENGINE WITH PILOT SUBCHAMBER AND IGNITION ELEMENT

1. A method of combusting fuel in a rotary engine having a rotor rotating in a cavity, the method comprising:injecting a minor portion of the fuel into a subchamber defined in an insert of the engine;
activating a portion of an ignition element received in the insert, the portion of the ignition element located adjacent a communication opening defined through the insert and communicating with the subchamber, the communication opening being sized to prevent the portion of the ignition element from completely passing therethrough upon breaking off of the portion of the ignition element from a remainder of the ignition element;
igniting the minor portion of the fuel in the subchamber by exposing the portion of the ignition element to the minor portion of the fuel through the communication opening;
circulating the ignited minor portion of the fuel from the subchamber to the cavity; and
injecting a remaining portion of the fuel into the cavity.

US Pat. No. 10,968,819

ADJUSTING DEVICE FOR A TURBOCHARGER, AND TURBOCHARGER

IHI Charging Systems Inte...

1. A control device for an exhaust turbocharger, comprising:an adjusting arm for accommodating a valve element which is provided for opening or closing a flow cross-section of a bypass duct of the exhaust turbocharger,
wherein the adjusting arm is movably accommodated in an exhaust gas conducting section of the exhaust turbocharger, and
wherein a circular symmetrical spring element is provided at least for securing the valve element in place on the adjusting arm,
wherein an inner portion of the spring element is held within a groove below a spigot end of the valve element, the inner portion being fixedly connected to the valve element and radially and axially immovable relative to the valve element, and
wherein an outer portion of the spring element is in contact with the adjusting arm,
further comprising a hold-down device accommodated in the groove above the spring element.

US Pat. No. 10,968,818

BOOST PRESSURE CONTROL

1. An internal combustion engine, comprising:at least one turbocharger having a compressor and an exhaust gas turbine;
a first actuator and a second actuator configured to control a boost pressure provided by the compressor of the at least one turbocharger;
a sensor configured to measure at least one measurement signal of the internal combustion engine; and
a controller configured to actuate the first and second actuators by varying a degree of opening of the first and second actuators;
wherein the controller is configured:
to calculate a total degree of opening of the first and second actuators to achieve a desired boost pressure provided by the compressor in dependence on the measured at least one measurement signal,
to determine a split of the total degree of opening between each of the first and second actuators to obtain individual values individual degrees of opening for each of the first and second actuators, wherein the first actuator comprises an upper limit of opening that is variable, and the split is determined to open the first actuator up to the upper limit prior to opening of the second actuator, and
to control each of the first and second actuators according to the individual degrees of opening so that the desired boost pressure provided by the compressor is reached.

US Pat. No. 10,968,817

SPARK-IGNITION INTERNAL COMBUSTION ENGINE

Mazda Motor Corporation, ...

1. A spark-ignition internal combustion engine comprising:a cylinder;
a piston disposed to be reciprocatively movable within the cylinder;
a cylinder head disposed above the cylinder, and configured to form a pent-roof combustion chamber in cooperation with an inner peripheral surface of the cylinder and a top surface of the piston; and
a spark plug disposed in the cylinder head in such a way as to face the combustion chamber, wherein
a protrusion including an intake-side inclined surface and an exhaust-side inclined surface along a ceiling surface of the combustion chamber is formed on the top surface of the piston,
a downwardly recessed cavity is formed in the protrusion at a position associated with the spark plug,
an intake port capable of generating a tumble flow within the combustion chamber is formed in the cylinder head, and
the intake-side inclined surface and the exhaust-side inclined surface are formed in such a way that an inclination angle of the exhaust-side inclined surface is smaller than an inclination angle of the intake-side inclined surface, and a difference in inclination angle between the intake-side inclined surface and the exhaust-side inclined surface is 4 degrees or larger,
the protrusion includes, between the intake-side inclined surface and the exhaust-side inclined surface, a pair of inclined lateral surfaces each extending from a central region toward an outer periphery of the piston,
each of the pair of lateral surfaces includes a first inclined surface extending from the central region of the piston while inclining downwardly toward the outer periphery of the piston, and a second inclined surface disposed on an outer peripheral side of the first inclined surface and inclined downwardly with an inclination angle larger than an inclination angle of the first inclined surface, and
each of the first inclined surface and the second inclined surface is formed into a conical shape.

US Pat. No. 10,968,816

SPARK-IGNITION INTERNAL COMBUSTION ENGINE

Mazda Motor Corporation, ...

1. A spark-ignition internal combustion engine comprising:a cylinder;
a piston disposed to be reciprocatively movable within the cylinder;
a cylinder head disposed above the cylinder, and configured to form a pent-roof combustion chamber in cooperation with an inner peripheral surface of the cylinder and a top surface of the piston; and
a spark plug disposed in the cylinder head along a center axis of the cylinder in such a way as to face the combustion chamber, wherein
a protrusion including an intake-side inclined surface and an exhaust-side inclined surface along a ceiling surface of the combustion chamber is formed on the top surface of the piston,
a downwardly recessed cavity is formed in the protrusion at a position associated with the spark plug,
an intake port capable of generating a tumble flow within the combustion chamber is formed in the cylinder head, and
the cavity includes a bottom surface of a circular flat shape centered at the center axis of the cylinder and a tubular peripheral surface rising from a periphery of the bottom surface upwardly, and is formed in such a way that a ratio of a depth of the cavity with respect to a diameter of the cavity is 0.3 or smaller.

US Pat. No. 10,968,815

CONTROL SYSTEM AND CONTROL METHOD FOR AN INTERNAL COMBUSTION ENGINE

VOLVO TRUCK CORPORATION, ...

1. A control system for controlling air supply to an internal combustion engine (ICE), the ICE including at least one cylinder comprising an inlet for supplying the air to the at least one cylinder, the system comprising: a container for compressed air storage; a conduit for supplying the compressed air from the container to the inlet of the at least one cylinder; a mechanically controlled valve arrangement for supplying the compressed air to the at least one cylinder from the conduit, the mechanically controlled valve arrangement comprising a first valve for supplying ordinary air to the at least one cylinder, the first valve being movable between a closed position in which the ordinary air cannot be supplied to the at least one cylinder and an open position in which the ordinary air is supplied to the at least one cylinder, the first valve including a passage connected to the conduit for supplying the compressed air to the at least one cylinder therethrough; an electrically controlled valve arranged with the conduit and provided for controlling the supply of the compressed air to the at least one cylinder, and a control unit connected to and configured for operating the electrically controlled valve, wherein the control unit is configured for operating the electrically controlled valve for supplying the compressed air to the at least one cylinder depending on an operational mode for the ICE, and wherein the ICE includes a turbocharger, and the electrically controlled valve is activated to supply the compressed air to the at least one cylinder when a pressure of the turbocharger is determined to be below a predetermined threshold.

US Pat. No. 10,968,814

INTERNAL COMBUSTION ENGINE FOR A MOTOR VEHICLE

Daimler AG, Stuttgart (D...

1. An internal combustion engine for a motor vehicle, comprising:a cylinder for accommodating a piston, wherein the cylinder defines a combustion chamber;
a pre-chamber spark plug allocated to the combustion chamber;
a pre-chamber that is fluidically connected with the combustion chamber via a central opening and a plurality of secondary openings, wherein in the pre-chamber an ignition spark is generable by the pre-chamber spark plug and wherein, at an induction stroke of the internal combustion engine, a rinsing of the pre-chamber with inlet gas that includes fuel and air occurs such that, at an ignition point, an ignitable mixture of filet and air is accommodated in the pre-chamber;
wherein the plurality of secondary openings are arranged distributed in a peripheral direction of the pre-chamber spark plug around the central opening, wherein a passage direction of the central opening runs diagonally to a respective passage direction of the plurality of secondary openings, and wherein the passage direction of the central opening runs diagonally to a longitudinal extension direction of the pre-chamber spark plug;
wherein the plurality of secondary openings are arranged with rotational symmetry relative to the longitudinal extension direction, wherein the longitudinal extension direction cuts the central opening, and wherein the central opening is inclined on a combustion chamber side in a direction of a fuel spray formed by a fuel injected directly into the combustion chamber by an injector.

US Pat. No. 10,968,813

HYBRID COOLING SYSTEM AND METHOD THEREOF

HYUNDAI MOTOR COMPANY, S...

1. A hybrid cooling method of a vehicle, comprising steps of:determining whether a current state is in an electric vehicle (EV) mode;
performing individual cooling if it is determined that the current state is in the EV mode;
determining whether a temperature of an engine coolant inside an engine is lower than a first high temperature determination temperature;
determining whether the engine is running, if it is determined that the temperature of the engine coolant inside the engine is lower than the first high temperature determination temperature; and
performing integrated cooling based on a state of charge (SOC) value of a battery.

US Pat. No. 10,968,812

TEMPERATURE RESPONSIVE VARIABLE WATER PUMP AND ENGINE COOLING SYSTEM

Hyundai Motor Company, S...

1. A water pump, comprising:a thermal valve through which a coolant as a fluid flows selectively in two flow directions within an outlet space of a pump housing, wherein the thermal valve includes:
a valve housing for dividing the outlet space of the pump housing into a front end chamber and a rear end chamber;
a switching valve configured to selectively switch the front and rear end chambers between a blocked state and a communicated state;
a temperature reactant that applies an expansion force by a temperature of the fluid to the switching valve such that a dual flow path is defined to form a fluid flow through the front end chamber and a fluid flow through the rear end chamber; and
a piston configured to support and move together with the switching valve when the switching valve is fixed to the valve housing,
wherein the switching valve is positioned at the front end chamber and is moved in a direction away from the rear end chamber, and
wherein the piston comprises a fixed piston that is fixed in the valve housing and a moving piston that is fixed to the switching valve, and the fixed piston is configured to be fitted to the moving piston to support movement of the moving piston.

US Pat. No. 10,968,811

COOLANT FLOW CONTROL APPARATUS, COOLING SYSTEM PROVIDED WITH THE SAME AND CONTROL METHOD FOR THE SAME

Hyundai Motor Company, S...

1. A coolant flow control apparatus comprising:a coolant controller housing including:
an inlet for coolant to flow in;
an outlet for the coolant to flow out;
a first coolant supply line; and
a second coolant supply line;
a water pump mounted to the coolant controller housing for transmitting the coolant;
a valve plate configured for selectively opening the first coolant supply line;
a valve piston configured for selectively opening the second coolant supply line;
a driving unit selectively moving the valve plate and the valve piston for closing or opening the first coolant supply line and the second coolant supply line respectively; and
a controller connected to the driving unit and configured for controlling an operation of the driving unit.

US Pat. No. 10,968,810

THERMAL MANAGEMENT MODULE

1. A thermal management module, comprising: a drive shaft; a housing that receives the drive shaft, the housing having: a first internal cavity; a second internal cavity accommodating a drivetrain for driving the drive shaft to rotate; first and second casings arranged in sequence in the axial direction, the first and second casings being in dismantlable fixed connection with each other; the first internal cavity disposed within the first casing; and the second internal cavity disposed within the second casing; a partition that separates the first and second internal cavities, the partition having: a first end cover located on an axial side of the first internal cavity; a second end cover located on an axial side of the second internal cavity; the first and second end covers arranged opposite each other in the axial direction and enclosing a collecting cavity; a through-hole extending through the first and the second end covers for the drive shaft to pass through, the through-hole having: a first port disposed on the first end cover facing toward the first internal cavity; and, a second port disposed on the second end cover facing toward the second internal cavity; and, the first internal cavity, the partition, and the second internal cavity arranged in sequence in an axial direction of the drive shaft; the drive shaft having one axial end extending from the first port into the first internal cavity, and another axial end extending from the second port into the second internal cavity; and, the collecting cavity having: a collecting inlet provided as an aperture between the first and the second end covers; and, the collecting cavity used for collecting, through the collecting inlet, coolant in the first internal cavity which leaks from the first port.

US Pat. No. 10,968,809

FLOW CONTROL VALVE AND COOLING SYSTEM

HITACHI AUTOMOTIVE SYSTEM...

1. A flow control valve comprising:a drive shaft;
a housing including
a base portion through which the drive shaft extends,
a circumferential wall extending from an outer circumference of the base portion toward one axial side of an axial direction, when a direction in which the drive shaft extends is defined as the axial direction, a valve element housing portion being provided on an inner circumferential side of the circumferential wall,
a main communicating port opened in an end portion on the one axial side of the circumferential wall,
a plurality of sub-communicating ports opened in the circumferential wall and communicating with the valve element housing portion, and
a bearing portion provided on the base portion and configured to rotatably support the drive shaft;
a drive mechanism configured to rotationally drive the drive shaft from another axial side of the axial direction opposite to the one axial side with respect to the base portion; and
a valve element accommodated in the valve element housing portion,
the valve element including
a bottom portion,
an outer circumferential portion extending from an outer circumference of the bottom portion toward the one axial side,
a main opening portion opened in an end portion on the one axial side of the outer circumferential portion and connecting with the main communicating port,
a plurality of sub-opening portions formed in the outer circumferential portion and configured to come into communication with the respective plurality of sub-communicating ports when the valve element is positioned within a predetermined rotation angle range,
an extending portion which extends from the bottom portion toward the one axial side and is fixed to the drive shaft, and
a first guide portion provided on an outer circumference of a tip portion of the extending portion and having an outer diameter which increases from the one axial side toward the other axial side in a direction radial to the axial direction.

US Pat. No. 10,968,808

TAILPIPE RISER

1. A modular tailpipe riser kit, comprising:a plurality of conduit modules, wherein each conduit module is selectively connectable to at least one other conduit module to support flow of exhaust gases through connected conduit modules, the plurality of conduit modules including:
a tailpipe coupling having a first end and a second end, wherein the first end is receivable and selectively securable to the outer surface of a tailpipe of an automobile;
an elbow having a first end and a second end, wherein the first end of the elbow is selectively connectable to the second end of the tailpipe coupling; and
a riser extension having a first end and a second end, wherein the first end of the riser extension is selectively connectable to the second end of the elbow; and
a circumferential clamp that is receivable about the tailpipe coupling for selectively securing the tailpipe coupling about the outer surface of the tailpipe; and
an agitator module including a ball cage and a hollow perforated ball retained within the ball cage, wherein the hollow perforated ball is able to move within the ball cage without escaping the ball cage.

US Pat. No. 10,968,807

CATALYST DETERIORATION DETECTION SYSTEM

TOYOTA JIDOSHA KABUSHIKI ...

1. A catalyst deterioration detection system detecting deterioration of a catalyst arranged in an exhaust passage of an internal combustion engine and able to store oxygen, comprising:an air-fuel ratio sensor arranged at a downstream side of the catalyst and detecting an air-fuel ratio of outflowing exhaust gas flowing out from the catalyst;
a current detector detecting an output current of the air-fuel ratio sensor; and
a controller including circuitry configured to:
apply a voltage to the air-fuel ratio sensor;
control the voltage applied to the air-fuel ratio sensor via the voltage applicator;
control an air-fuel ratio of inflowing exhaust gas flowing into the catalyst; and
judge a degree of deterioration of the catalyst, wherein
the controller is configured to execute a fuel cut control, in which a supply of fuel to a combustion chamber of the internal combustion engine is stopped, when a predetermined execution condition is satisfied, and, after the fuel cut control, execute a rich control making the air-fuel ratio of the inflowing exhaust gas richer than a stoichiometric air-fuel ratio,
the controller is configured to, if judging that the air-fuel ratio of the outflowing exhaust gas has reached the stoichiometric air-fuel ratio when setting the applied voltage to a first voltage in a limit current region during the rich control, change the applied voltage from the first voltage to a second voltage in the limit current region, and
judge the degree of deterioration of the catalyst based on the output current of the air-fuel ratio sensor detected by the current detector when the applied voltage is set to the second voltage.

US Pat. No. 10,968,806

METHOD AND SYSTEM OF UREA SOLUTION LEVEL MEASUREMENT ADJUSTMENT, DISPLAY AND HEATER OPERATION

Hyundai Motor Company, S...

1. A method of operation of a heater, comprising:measuring urea solution concentration injected into a urea solution tank by a urea solution quality sensor;
determining whether unclean urea solution is injected into the urea solution tank, by the measured urea solution concentration;
determining whether urea solution temperature is lower than heater operation condition temperature according to the unclean urea solution when the unclean urea solution is injected into the urea solution tank;
operating the heater when the urea solution temperature is lower than the heater operation condition temperature according to the unclean urea solution concentration;
determining whether the urea solution temperature is lower than sub-zero 7 degrees when the unclean urea solution is not injected into the urea solution tank; and
operating the heater when the urea solution temperature is lower than sub-zero 7 degrees;
wherein the heater operation condition temperature is zero degree when the unclean urea solution concentration is 100%, and
wherein the heater operation condition temperature is fifty degrees when the unclean urea solution concentration is 50%.

US Pat. No. 10,968,805

MOTOR VEHICLE AND A METHOD FOR OPERATING A MOTOR VEHICLE

AUDI AG, Ingolstadt (DE)...

1. A motor vehicle comprising:an exhaust system downstream of an internal combustion engine, which exhaust system includes several exhaust gas aftertreatment devices for cleaning an exhaust gas of the internal combustion engine, wherein the exhaust system further comprises an SCR catalytic converter and at least one additional catalytic converter, and wherein the additional catalytic converter is designed as an NOx storage catalytic converter or an oxidation catalytic converter;
a control device is provided for controlling at least one operating component of the motor vehicle that influences the temperature of the exhaust gas, wherein the control device is designed to control the operating component to set the temperature of the exhaust gas as a function of (1) a driving style of an identified manual driver of the motor vehicle, (2) at least one instance of route information dependent on an expected travel distance, and (3) one instance of conversion information relating to a temperature-dependent pollutant conversion rate of at least one exhaust gas aftertreatment device of the exhaust system; and
a belt-starter generator, provided to start the internal combustion engine, wherein the operating component is operated using electricity generated from mechanical energy of the internal combustion engine via the belt-starter generator.

US Pat. No. 10,968,804

CONTROLLER AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE

TOYOTA JIDOSHA KABUSHIKI ...

8. A control method for an internal combustion engine, whereinthe internal combustion engine includes
a fuel injection valve that supplies fuel into a cylinder,
an exhaust gas purifying catalyst provided in an exhaust passage,
a filter for trapping particulate matter in exhaust gas, the filter being provided in a section of the exhaust passage on a downstream side of the catalyst, and
a pressure sensor that measures an exhaust pressure between the catalyst and the filter, wherein
the internal combustion engine is controlled to perform a fuel amount increase control to increase an amount of fuel injected from the fuel injection valve such that an air-fuel ratio of an air-fuel mixture becomes richer than a stoichiometric air-fuel ratio, andthe control method comprises:by a controller,
calculating a predicted value of the exhaust pressure for a case in which engine fuel containing no manganese is used continuously;
determining an adhesion temperature, which is a minimum temperature of the catalyst at which manganese oxide collected on the catalyst adheres to the catalyst, and calculating a correlation value proportional to an amount of heat received by the catalyst when a temperature of the catalyst is higher than or equal to the adhesion temperature;
determining a removal requirement for removing manganese oxide from the catalyst when a difference between a detected pressure of the pressure sensor and at least one of the predicted value is greater than a specified determination value, and the correlation value is greater than or equal to a specified determination value; and
increasing the amount of fuel when the removal requirement has been determined.

US Pat. No. 10,968,803

SYSTEMS AND METHODS FOR IDLE FUEL ECONOMY MODE

Cummins Inc., Columbus, ...

1. An apparatus comprising:a stored reductant determination circuit structured to determine an amount of stored reductant in a selective catalytic reduction (SCR) component of an exhaust aftertreatment system;
a fuel mode economy circuit structured to control an amount of reductant added to the exhaust aftertreatment system during a standard engine idle mode of operation based on the amount of stored reductant, wherein the fuel mode economy circuit is structured to enter a fuel efficient engine idle mode in which the fuel mode economy circuit is inhibited from adding reductant during the fuel efficient engine idle mode in response to determining that a temperature in the SCR component is above a temperature threshold and in response to determining that an amount of time that an engine is in at least one of the standard engine idle mode and the fuel efficient engine idle mode is less than a fuel efficient idle time threshold.

US Pat. No. 10,968,801

CONNECTING PIECE FOR FLUID LINES OF AN EXHAUST-GAS AFTERTREATMENT SYSTEM

Robert Bosch GmbH, Stutt...

1. A connecting piece (6) for fluid lines of an exhaust-gas aftertreatment system (1), the connecting piece comprising a hollow body (6a) having at least three fluid ports (14, 15) connected to one another in a fluid-conducting manner in the hollow body (6a), characterized in that at least two of the fluid ports (15) are separated from a third one of the fluid ports (14) by in each case one respective membrane (19) that is permeable to a liquid and, in a state wetted by the liquid, is impermeable to a gas.

US Pat. No. 10,968,800

DOSING AND MIXING ARRANGEMENT FOR USE IN EXHAUST AFTERTREATMENT

Donaldson Company, Inc., ...

1. A unit for an exhaust system, the unit comprising:a housing defining an inlet leading to an interior, the housing including a doser mounting location;
an outlet pipe coupled to the housing, the outlet pipe leading from the interior out of the housing;
a mixing conduit disposed within the interior of the housing, the mixing conduit extending along a length between a first end and a second end, the second end being aligned with the doser mounting location, and the mixing conduit defining a plurality of apertures spaced about a circumference of the mixing conduit;
an exhaust treatment substrate disposed within the interior of the housing, the exhaust treatment substrate defining a central axis that intersects the mixing conduit;
a deflection arrangement disposed within the interior of the housing downstream of the exhaust treatment substrate, the deflection arrangement being separate from the mixing conduit, the deflection arrangement being configured to cause exhaust exiting the exhaust treatment substrate to flow around the mixing conduit in a first rotational direction, the deflection arrangement including a baffle that curves along and opposes an external surface of the mixing conduit.

US Pat. No. 10,968,799

REDUCTANT GENERATION SYSTEMS AND METHODS

Cummins Emission Solution...

20. A system for use with an engine having a first cylinder and a second cylinder, the system comprising:an inlet configured to receive air;
an intake manifold configured to receive the air from the inlet and to provide the air to the first cylinder and the second cylinder;
an exhaust manifold configured to receive exhaust from the first cylinder and the second cylinder, the exhaust manifold comprising:
a first exhaust outlet conduit configured to receive the exhaust from the first cylinder; and
a second exhaust outlet conduit configured to receive the exhaust from the second cylinder;
a catalyst disposed along the second exhaust outlet conduit and configured to receive the exhaust from the second cylinder and to produce ammonia; and
a recirculation conduit coupled to the first exhaust outlet conduit and the intake manifold and configured to selectively provide the exhaust from the first cylinder to the intake manifold;
wherein the second exhaust outlet conduit is isolated from the first exhaust outlet conduit upstream of the catalyst and coupled to the first exhaust outlet conduit downstream of the catalyst; and
wherein the second exhaust outlet conduit is coupled to the first exhaust outlet conduit downstream of the recirculation conduit.

US Pat. No. 10,968,798

METHOD AND SYSTEM OF CONTROLLING OXYGEN PURGE OF THREE-WAY CATALYST

Hyundai Motor Company, S...

1. A method of controlling an oxygen purge of a three-way catalyst (TWC), the method comprising:adjusting, by a controller, an air-fuel ratio (AFR) at an upstream of the TWC to a target AFR when the oxygen purge of the TWC after a fuel cut-off is performed;
maintaining, by the controller, the target AFR until the oxygen purge is finished determining, by the controller, when a vehicle accelerates after the oxygen purge is finished; and
maintaining, by the controller, the target AFR for a predetermined delay time, upon determining that the vehicle accelerates,
wherein the oxygen purge is finished when the AFR at a downstream of the TWC reaches a stoichiometric AFR.

US Pat. No. 10,968,797

VALVE WITH A BALL BEARING AND EXHAUST LINE COMPRISING SAID VALVE

1. A valve, comprising:a valve body, inwardly defining a passage for circulation of a fluid;
a flap housed in the valve body;
a drive shaft to rotate the flap relative to the valve body, the flap being fastened to the drive shaft;
a guide bearing to guide the rotation of the drive shaft, the guide bearing comprising a chamber surrounding a segment of the drive shaft, and a plurality of balls filling the chamber, the plurality of balls being free inside the chamber, the chamber being completely filled with the plurality of balls and the plurality of balls being in contact with one another and being in contact with the drive shaft along all or part of the segment.

US Pat. No. 10,968,796

BREATHER STRUCTURE OF ENGINE

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

1. A breather structure of an engine,wherein a valve chamber accommodating a camshaft is defined between a cylinder head shared by two banks of a V-type engine and a head cover mounted to the cylinder head, an opening part which a shaft end of the camshaft faces is formed on a breather chamber mounting surface crossing the cylinder head and the head cover, and a breather chamber communicating an intake passage upstream of a throttle valve with the valve chamber is mounted to the breather chamber mounting surface, and
wherein the breather chamber comprises a cylindrical drain passage communicating with the valve chamber, and a tip of the drain passage exceeds the breather chamber mounting surface and protrudes from the opening part toward a side of the valve chamber,
wherein a first opening part and a second opening part facing shaft ends of an intake camshaft and an exhaust camshaft are formed on the breather chamber mounting surface, the breather chamber comprises at least a first chamber and a second chamber defined by sandwiching an oil separating member separating oil from blow-by gas, a first drain passage of the first chamber protrudes from the first opening part toward the side of the valve chamber, and a second drain passage of the second chamber protrudes from the second opening part toward the side of the valve chamber.

US Pat. No. 10,968,795

METHODS AND SYSTEMS FOR DETECTION OF PARTICLES IN LUBRICANT

Ford Global Technologies,...

1. A system comprising:a lubricant passage comprising a lubricant detection system comprising a particle capturing device arranged between a first sensor and a second sensor, wherein the lubricant detection system is shaped to mate with couplings of an engine and an oil filter: and
a controller with instructions stored on non-transitory memory thereof that when executed enable the controller to adjust engine operating parameters in response to feedback from the first and second sensors,
wherein the oil filter is a first oil filter, and wherein the particle capturing device is an second oil filter.

US Pat. No. 10,968,794

ENGINE TRANSPORTATION APPARATUS

GENERAL ELECTRIC COMPANY,...

1. A turbine engine transportation fixture comprising:a turbine engine jig having mounts for securing a turbine engine;
a rotary driver configured to couple to an input on the turbine engine for continuously rotating a rotor of the turbine engine independently of engine combustion; and
a lubricant reservoir configured to couple with a bearing coolant circuit for the turbine engine.

US Pat. No. 10,968,793

AXLE ASSEMBLY

Dana Automotive Systems G...

1. An axle assembly, comprising:a housing having a fluid sump provided with a fluid disposed therein; and
a first fluid passageway arranged in a link shaft and configured to permit fluid flow between the fluid sump and a fluid flow member;
wherein the fluid flow member is rotatably disposed in the housing axially between a ring gear rotationally coupled to the link shaft and a disconnect assembly and is configured to at least partially direct a flow of the fluid to at least one desired component disposed within the housing
the fluid flow member includes a main body having a first surface and an opposing second surface, at least one retention feature extending from the first surface and at least one catch extending from the second surface, the at least one catch axially aligned with the first fluid passageway.

US Pat. No. 10,968,792

MOTORCYCLE ENGINE

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

1. A motorcycle engine configured to be installed and transversely mounted in a frame of a motorcycle, the motorcycle engine comprising:a crankcase having a case front wall,
a cylinder block inclined frontward on the crankcase, the cylinder block having a cylinder front wall forming an obtuse angle with respect to the case front wall to form a valley part;
a cylinder head stacked on the cylinder block; and
a valve gear disposed on the cylinder head, the valve gear comprising:
a camshaft oriented in a vehicle width direction and rotatably provided on the cylinder head,
a cam carrier as a cylindrical member axially slidably fitting on an outer circumference of the camshaft while prohibited from relatively rotating, and a plurality of cam lobes, different in cam profile from each other formed axially adjacent to each other on an outer circumferential surface of the cam carrier, and
a cam switch for axially shifting the cam carrier to switch a currently operational cam lobe acting on a valve, and an actuator for actuating operation of the cam switch, wherein the right-left direction oil passage supplies oil to the actuator of the cam switch,
wherein:
the cylinder head comprises a head side wall, and a head top-bottom direction oil passage extending in a top-bottom direction along the head side wall, the head top-bottom direction oil passage arranged between a pair of supply and discharge oil passages which are respectively provided for supplying oil to, and discharging oil from the actuator,
the crankcase has a right-left direction oil passage formed therein which supplies oil to the valve gear,
the right-left direction oil passage extends in a right-left direction along the valley part,
and the right-left direction oil passage is situated proximate the valley part.

US Pat. No. 10,968,791

CONTROL DEVICE AND CONTROL METHOD FOR ONBOARD ENGINE

TOYOTA JIDOSHA KABUSHIKI ...

1. A control device for an onboard engine, the onboard engine including an oil pump configured to circulate oil within the onboard engine and change a discharge pressure of the oil and a sensor configured to detect a pressure of the oil discharged from the oil pump, the control device comprising:circuitry configured to:
control the oil discharge pressure of the oil pump based on a target discharge pressure that is a target value of a discharge pressure set for the oil pump and a discharge pressure sensor value that is a pressure of oil detected by the sensor;
determine whether there may be an abnormality in the control of the oil discharge pressure;
when the circuitry determines that there may be the abnormality in the control of the oil discharge pressure, execute a change process in which the target discharge pressure is increased to a value that is greater than a value of the target discharge pressure before it is determined that there may be the abnormality in the control of the oil discharge pressure; and
when the discharge pressure sensor value, in a situation in which the circuitry is controlling the oil discharge pressure based on the target discharge pressure increased through execution of the change process, does not become greater than or equal to a discharge pressure threshold that is less than the target discharge pressure increased through the execution of the change process:
set an upper limit for an engine rotation speed, and
increase the upper limit as the discharge pressure sensor value increases.

US Pat. No. 10,968,790

ACTUATION APPARATUS

EATON INTELLIGENT POWER L...

1. An actuation apparatus for actuating a latching arrangement of a switchable valve train component of an internal combustion engine, the apparatus comprising:a lever configured to contact an actuation source and configured to contact the latching arrangement; and
a bias,
wherein the bias contacts the lever,
wherein the bias is configured such that, in use, the bias becomes biased by the lever when the actuation source moves the lever when the actuation source attempts to actuate the latching arrangement, via the lever, when the latching arrangement is non-actuatable, whereby the bias causes the lever to actuate the latching arrangement when the latching arrangement is actuatable again,
wherein the lever contacts the bias at a first end of the lever,
wherein a second end of the lever, opposite to the first end of the lever, is configured to contact the latching arrangement, and
wherein the lever is configured such that, in use, the lever rotates about the second end when the actuation source moves the lever when the actuation source attempts to actuate the latching arrangement, via the lever, when the latching arrangement is non-actuatable.

US Pat. No. 10,968,789

METHOD AND SYSTEMS FOR A VALVE BRIDGE FOR AN ENGINE

TRANSPORTATION IP HOLDING...

1. A valve bridge, comprising:a first arm and an opposing second arm, and a base of the valve bridge extending along a longitudinal axis which extends between recesses for valve stems;
a first wall and a second wall extending outward from the base of the valve bridge and connecting to one another;
an interior face of each of the first wall, the second wall, and the base of the valve bridge forming a passage extending through the valve bridge, the passage disposed between the first wall and the second wall and the passage extending from a first main opening in a first exterior side wall and an opposing, second main opening in a second exterior side wall;
a central support wall formed within the passage, two openings forming two passages through the central support wall, and the two openings connecting sides of the passage divided by the central support wall; and
orifices extending through the base of the valve bridge to connect the passage to an exterior of the valve bridge.

US Pat. No. 10,968,788

TWO-PART LIFTER ASSEMBLY

Eaton Intelligent Power L...

1. A lifter assembly for a cam-actuated engine, the lifter assembly comprising:a lifter comprising:
a pump actuator comprising:
a main body configured to lift and lower in a lifter recess and configured to receive an anti-rotation insert or an alignment bar;
a receiving portion comprising a rim extending from the main body; and
a cam follower comprising a roller assembly or a flat tappet integrated to the main body on a side opposite to the receiving portion, the cam follower configured to follow a rotating cam; and
a hydraulically-actuated capsule seated against the receiving portion and extending from the rim so as to lift, lower, and rotate against the lifter recess, the hydraulically-actuated capsule configured to rotate with respect to the pump actuator.

US Pat. No. 10,968,787

SINGLE LOBE DEACTIVATING ROCKER ARM

Eaton Corporation, Cleve...

1. A deactivating rocker arm for engaging a cam having a lift lobe and a safety lobe, the deactivating rocker arm comprising:a first arm having a safety lobe contacting surface configured to selectively contact the safety lobe;
a second arm rotatably coupled to the first arm;
a lift lobe contacting member rotatably mounted on a first axle and configured to engage the lift lobe;
a biasing member having a spring arm that contacts the first axle and that biases the lift lobe contacting member toward the cam;
a latch for selectively securing the second arm relative to the first arm thereby selectively permitting lost motion movement of the second arm relative to the first arm; and
a pivot axle mounted adjacent to a first end wherein the pivot axle pivotably couples the first and second arms together;
wherein the deactivating rocker arm is configured to move between (i) an activated state wherein the second arm pivots with the first arm while the cam contacts the lift lobe contacting member, and (ii) a deactivated state wherein the second arm pivots relative to the first arm while the cam contacts the lift lobe contacting member.

US Pat. No. 10,968,786

EXPLOITING CONDENSATION HEAT IN HEAT ENGINES

EXENCY LTD.

1. A heat engine exploiting condensation heat of working fluid, the engine comprising:a first pump operative to pressurize a liquid working fluid;
a heater operative to vaporize the liquid working fluid into a vapor working fluid;
a stream splitter operative to split the vapor working fluid into a first vapor working fluid and a second vapor working fluid;
a first expander configured to operate at a first expansion ratio during expansion of the first vapor working fluid to produce a partially expanded first vapor working fluid;
a second expander configured to operate at a second expansion ratio greater than the first expansion ratio during expansion of the second vapor working fluid in a stream parallel to the first vapor working fluid;
an isobaric Wankel condenser operative to condense the expanded second vapor working fluid so as to form a condensate;
a second pump operative to pressurize the condensate into a pressurized condensate; and
an isobaric condenser combiner operative to contact the pressurized condensate with the partially expanded first vapor working fluid so as to form the liquid working fluid.

US Pat. No. 10,968,785

WASTE HEAT RECOVERY SYSTEMS WITH HEAT EXCHANGERS

Cummins Inc., Columbus, ...

1. A waste heat recovery system (100) of a vehicle, comprising:at least one heat exchanger (104) fluidically coupled to a waste heat source (102) associated with the vehicle and configured for selectively recovering heat from the waste heat source (102) to heat a working fluid (108);
at least one energy conversion device (112) fluidically coupled to the at least one heat exchanger (104) and configured to receive the working fluid (108) and to generate an energy for performing work or transferring the energy to another device using the heat recovered from the waste heat source (102);
a condenser (122) fluidically coupled to the at least one energy conversion device (112) and configured to receive the working fluid (108) from the at least one energy conversion device (112) and to condense the working fluid (108) into a liquid phase;
a recuperator (120) fluidically coupled to the at least one energy conversion device (112) and configured to receive the working fluid (108) from the at least one energy conversion device (112) and to communicate at least a portion of the working fluid (108) to the at least one heat exchanger (104); and
an exhaust boiler (110) fluidically coupled to the at least one heat exchanger (104) and configured to receive the working fluid (108) from the at least one heat exchanger (104) and to evaporate the working fluid (108) and communicate the evaporated working fluid (108) to the at least one energy conversion device (112);
wherein the exhaust boiler includes a plurality of microtubes, and the condenser (122) is fluidically coupled to a sub-cooler (124) which is fluidically coupled to the recuperator (120).

US Pat. No. 10,968,784

FLEXIBLE COAL-FIRED POWER GENERATION SYSTEM AND OPERATION METHOD THEREOF

1. A flexible coal-fired power generation system, which comprises a thermal system for coal-fired power generating unit and a high-temperature heat storage system, wherein:the thermal system for coal-fired power generating unit comprises a boiler (1), a steam turbine high pressure cylinder (2), a steam turbine medium and low pressure cylinder (3), a condenser (4), a condensate pump (5), a low pressure heater (6), a deaerator (7), a feedwater pump (8), a first-stage high pressure heater (9), a second-stage high pressure heater (10), a third-stage high pressure heater (11), an inlet regulating valve (12) for the first-stage high pressure heater, an inlet regulating valve (13) for the second-stage high pressure heater, an inlet regulating valve (14) for the third-stage high pressure heater and an outlet regulating valve (15) for the third-stage high pressure heater; a heat storage medium heater (16) is located in the boiler (1);
the high-temperature heat storage system comprises a heat storage medium pump (17), a cold heat storage medium tank (18), a hot heat storage medium tank (20), a connection valve (19) for connecting the cold heat storage medium tank (18) with the hot heat storage medium tank (20), a heat storage medium and feedwater heat exchanger (21) and an outlet regulating valve (22) for the hot heat storage medium tank (20), all of which are connected with each other in sequence;
an inlet of the heat storage medium heater (16) is connected with a cold heat storage medium outlet of the cold heat storage medium tank (18) through the heat storage medium pump (17); an outlet of the heat storage medium heater (16) is connected with a hot heat storage medium inlet of the hot heat storage medium tank (20) through a pipeline; a heat storage medium outlet of the heat storage medium and feedwater heat exchanger (21) is connected with a cold heat storage medium inlet of the cold heat storage medium tank (18) through a pipeline, and a heat storage medium inlet of the heat storage medium and feedwater heat exchanger (21) is connected with a hot heat storage medium outlet of the hot heat storage medium tank (20) through the outlet regulating valve (22) for the hot heat storage medium tank; a feedwater inlet of the heat storage medium and feedwater heat exchanger (21) is connected with a feedwater inlet of the first-stage high pressure heater (9) through the inlet regulating valve (12) for the first-stage high pressure heater, is connected with a feedwater inlet of the second-stage high pressure heater (10) through the inlet regulating valve (13) for the second-stage high pressure heater, is connected with a feedwater inlet of the third-stage high pressure heater (11) through the inlet regulating valve (14) for the third-stage high pressure heater, and is connected with a feedwater outlet of the third-stage high pressure heater through the outlet regulating valve (15) for the third-stage high pressure heater; a feedwater outlet of the heat storage medium and feedwater heat exchanger (21) is connected with the feedwater outlet of the third-stage high pressure heater (11); the cold heat storage medium tank (18) is connected with the hot heat storage medium tank (20) through the connection valve (19) for connecting the cold heat storage medium tank with the hot heat storage medium tank; a superheated steam outlet of the boiler (1) is connected with an inlet of the steam turbine high pressure cylinder (2); a feedwater inlet of the boiler (1) is connected with the feedwater outlet of the third-stage high pressure heater (11); a steam outlet of the steam turbine high pressure cylinder (2) is connected with a steam inlet of the steam turbine medium and low pressure cylinder (3) through the boiler (1), and is connected with a superheated steam inlet of the second-stage high pressure heater (10) through a pipeline; a first-stage steam extraction outlet of the steam turbine high pressure cylinder (2) is connected with a steam inlet of the third-stage high pressure heater (11) through a pipeline; a first-stage steam extraction outlet of the steam turbine medium and low pressure cylinder (3) is connected with a steam inlet of the first-stage high pressure heater (9) through a pipeline, and a second-stage steam extraction outlet of the steam turbine medium and low pressure cylinder (3) is connected with a steam inlet of the deaerator (7) through a pipeline, and a third-stage steam extraction outlet of the steam turbine medium and low pressure cylinder (3) is connected with a steam inlet of the low pressure heater (6) through a pipeline; a steam outlet of the steam turbine medium and low pressure cylinder (3) is connected with a steam inlet of the condenser (4); a water outlet of the condenser (4) is connected with a water inlet of the low pressure heater (6) through the condensate pump (5); a water outlet of the low pressure heater (6) is connected with a water inlet of the deaerator (7); a water outlet of the deaerator (7) is connected with the feedwater inlet of the first-stage high pressure heater (9) and the feedwater inlet of the heat storage medium and feedwater heat exchanger (21) through the feedwater pump (8); a feedwater outlet of the first-stage high pressure heater (9) is connected with the feedwater inlet of the second-stage high pressure heater (10) through a pipeline; a feedwater outlet of the second-stage high pressure heater (10) is connected with the feedwater inlet of the third-stage high pressure heater (11) through a pipeline.

US Pat. No. 10,968,783

THERMAL POWER GENERATION SYSTEM AND CONTROL METHOD FOR SAME

MITSUBISHI POWER, LTD., ...

1. A thermal power generation system, comprising:a coal burning or oil burning boiler including at least one internal heat exchanger that includes an economizer being disposed in a circulation passage through which water is circulatable, and being capable of generating steam through heat exchange between the water and exhaust gas produced by burning coal or heavily oil as a fuel;
at least one steam turbine being disposed in the circulation passage and being capable of outputting power by utilizing the steam;
a generator capable of generating electric power by utilizing the power outputted from the steam turbine;
a condenser capable of condensing the steam discharged from the steam turbine;
at least one low-pressure feed water heater being disposed in a feed water path forming a part of the circulation passage, extending from the condenser to the at least one internal heat exchanger, and being capable of heating the water condensed by the condenser by utilizing steam extracted from the at least one steam turbine;
a high-pressure feed water pump being disposed in the feed water path of the circulation passage so as to be positioned downstream of the at least one low-pressure feed water heater, and being capable of increasing a pressure of the water heated by the at least one low-pressure feed water heater and pumping the water;
at least one high-pressure feed water heater being disposed in the feed water path of the circulation passage so as to be positioned between the high-pressure feed water pump and the at least one internal heat exchanger, and being capable of heating the water pumped by the high-pressure feed water pump by utilizing steam extracted from the at least one steam turbine;
a catalyst device being disposed in an exhaust path of the exhaust gas extending from the boiler, and including at least one kind of catalyst capable of promoting reduction reaction of nitrogen oxide and oxidation reaction of metallic mercury, the nitrogen oxide and the metallic mercury both being contained in the exhaust gas;
at least one mercuric oxide removing device being disposed in the exhaust path so as to be positioned downstream of the catalyst device, and being capable of removing mercuric oxide produced by the oxidation reaction of the metallic mercury from the exhaust gas;
an exhaust gas temperature adjustment device capable of adjusting a temperature of the exhaust gas at the catalyst device to be not higher than 420° C., by adjusting heating of the water by the at least one high-pressure feed water heater; and
a bypass duct which brings a flue gas duct of an upstream side of the economizer and a flue gas duct of a downstream side of the economizer into communication,
wherein the bypass duct allows at least a part of the exhaust gas to bypass the economizer during startup of the boiler or during part load of the boiler and the exhaust gas is prevented from passing through the bypass duct while not in starting up of the boiler nor in part load of the boiler after starting the boiler, and
wherein the exhaust gas temperature adjustment device includes:
an exhaust gas temperature sensor capable of measuring the temperature of the exhaust gas at the catalyst device;
at least one extraction valve disposed in at least one extraction passage extending between the at least one steam turbine and the at least one high-pressure feed water heater, and being capable of adjusting a flow rate of steam extracted from the at least one steam turbine; and
a control device adjusting an opening degree of the at least one extraction valve on the basis of a measurement result of the exhaust gas temperature sensor.

US Pat. No. 10,968,782

ROTATABLE VANES

RAYTHEON TECHNOLOGIES COR...

1. A gas turbine engine having an engine central longitudinal axis, the gas turbine engine comprising:a vane stage; and
a drive system;
wherein the drive system is configured to rotate the vane stage around the engine central longitudinal axis such that the vane stage is configured to complete full rotations around the engine central longitudinal axis;
wherein the drive system comprises a drive motor and a drive gear, the vane stage comprises a circumferentially extending gear teeth track, and the drive gear complementarily engages the gear teeth track.

US Pat. No. 10,968,781

SYSTEM AND METHOD FOR COOLING DISCHARGE FLOW

General Electric Company,...

1. A system comprising:a first probe disposed through one or more walls of a turbomachine, comprising:
a sensing component configured to sense a parameter of a turbomachine, wherein the sensing component is disposed on a warm side of the one or more walls;
a first body coupled to the sensing component;
a first inlet configured to receive a first cooling inflow, wherein the first inlet is disposed on a cool side of the one or more walls;
a first shell coupled to the first inlet, wherein the first shell defines a first cooling passage that extends through the one or more walls of the turbomachine, wherein the first cooling passage is configured to direct the first cooling inflow from the first inlet toward the sensing component of the first probe and toward a first outlet coupled to the first shell; and
the first outlet, wherein the first outlet is disposed on the cool side of the one or more walls, and the first outlet is configured to receive a first outflow from the first cooling passage, wherein the first outflow comprises at least a first portion of the first cooling inflow; and
an ejector coupled to the first outlet, wherein the ejector is configured to mix a coolant with the first outflow to reduce a temperature and a velocity of the first outflow.

US Pat. No. 10,968,780

TURBINE BEARING MAINTENANCE APPARATUS AND METHOD

GENERAL ELECTRIC COMPANY,...

1. An apparatus for performing maintenance on a gas turbine having a shaft, a bearing for the shaft, a bearing housing and a turbine inlet bellmouth adjacent the bearing housing, the apparatus for performing in-situ maintenance on a bearing area of the turbine, the apparatus comprising:a set of rails sized to couple with the gas turbine and rest coaxially with the bearing in the bearing area, the set of rails for supporting a portion of the bearing housing;
a first platform spanning between the set of rails;
a lifting device coupled to the first platform for engaging the inlet bellmouth; and
a second platform suspended from the set of rails sized to accommodate an operator,
wherein, while the apparatus is mounted to the gas turbine, the second platform is positioned below the bearing area enabling an operator to access the bearing area from below the shaft.

US Pat. No. 10,968,779

TOOL AND METHOD FOR FRONTAL UNSCREWING OF A LINK NUT IN A TWIN-SPOOL TURBINE

Safran Aircraft Engines, ...

1. An unscrewing tooling configured to unscrew a connecting nut of a rotor of a gas turbine engine module, comprising:a tubular wrench; and
a support for said tubular wrench, the support comprising a cylindrical barrel and four branches radially extending in a star shape from the barrel, the four branches being integrally connected to each other so as to form a single monolithic piece, a first radial end of each of the branches being connected to the barrel and a second radial end of each of the branches being free and presenting a thickness in an axial direction, the second radial end of each of the branches being radially outward of the first radial end of each of the branches,
wherein the tubular wrench comprises teeth mounted removably in the barrel of the support,
wherein the unscrewing tooling further comprises:
an axial locking member which axially locks the tubular wrench with respect to the support; and
an anti-rotation tool configured to block the rotor against any rotational movement about its axis,
wherein removable shoes are mounted on the second free ends of the branches, the removable shoes and the second free ends of the branches including holes,
wherein the tubular wrench comprises two circular bearing surfaces which extend each radially from the tubular wrench and placed in a corresponding ring, the corresponding ring being located between the tubular wrench and the support, and
wherein the axial locking member comprises a removable annulus located upstream of one of the two circular bearing surfaces.

US Pat. No. 10,968,778

GAS TURBINE

Doosan Heavy Industries C...

1. A gas turbine comprising:an outer casing having an annular shape and an axial center line;
an inner casing concentrically disposed inside the outer casing; and
a plurality of struts disposed between the inner and outer casings, each of the plurality of struts including:
a hub end fixed to an outer surface of the inner casing,
a tip end fixed to an inner surface of the outer casing, and
a strut tip for guiding a flow of combustion gas, the strut tip including a leading end disposed at a leading edge of the strut and a trailing end disposed at a trailing edge of the strut, the strut tip extending radially outward in a downstream direction and further including:
a first inclined portion that is disposed at the leading end of the strut tip and forms a first inclination angle with the axial center line, and
a second inclined portion that is disposed at the trailing end of the strut tip and forms a second inclination angle with the axial center line,
wherein the first inclined portion and the second inclined portion have different inclination angles, and
wherein the second inclination angle is greater than the first inclination angle.

US Pat. No. 10,968,777

CHORDAL SEAL

RAYTHEON TECHNOLOGIES COR...

1. A vane for a gas turbine engine comprising;at least one airfoil;
a first platform having a first rail located at a first end of the airfoil;
a second platform having a second rail located at a second end of the airfoil;
a first chordal seal located on an axially aft surface of the first rail; and
a second chordal seal located on an axially aft surface of the second rail having a second radius of curvature at least partially truncated by an outer edge of the second rail;
wherein the first rail includes a radially outermost edge extending along a curvature, a first plateau on the axially aft surface that is located radially outward from the first chordal seal with the first plateau extending between a first circumferential edge and a second circumferential edge, and the first chordal seal includes a first radius of curvature and the first and second chordal seal extend in a linear direction.

US Pat. No. 10,968,776

TURBINE SUPPORT STRUCTURE

KAWASAKI JUKOGYO KABUSHIK...

1. A turbine support structure for a turbine of a gas turbine engine, the turbine support structure comprising:a plurality of nozzles; and
a shroud opposed to a rotor blade adjacent to the plurality of nozzles are supported by a turbine casing which covers an outer circumference of the turbine, the plurality of nozzles and the shroud forming the turbine, wherein
each nozzle includes an outer circumferential flange having a front end portion and a rear end portion respectively engaged with an inner circumferential portion of the turbine casing,
a front end portion of the shroud is engaged with the rear end portion of the outer circumferential flange positioned frontward of the shroud, and a rear end portion of the shroud is engaged with the front end portion of the outer circumferential flange positioned rearward of the shroud,
at only either one of the front end portion and the rear end portion of the outer circumferential flange, a superposition engagement portion is formed at which an engagement portion of the turbine casing, an engagement portion of the outer circumferential flange, and an engagement portion of the shroud are superposed on each other in a radial direction, and
a nozzle of the plurality of nozzles and the shroud are supported by the turbine casing by means of a support pin penetrating the superposition engagement portion in the radial direction, wherein
the nozzle of the plurality of nozzles includes a plurality of nozzle division portions obtained by dividing the nozzle in a circumferential direction,
the shroud includes shroud division portions that are obtained by dividing the shroud in the circumferential direction and whose number is twice a number of the plurality of nozzle division portions,
each nozzle division portion includes an outer circumferential flange division portion formed with a center insertion groove at a circumferentially center portion thereof and end-portion insertion grooves at circumferentially opposite end portions thereof, and a plurality of the support pins are respectively inserted in the center insertion groove and the end-portion insertion grooves, and
a gap is formed between each end-portion insertion groove and the support pin inserted in the end-portion insertion groove, in a state in which the outer circumferential flange division portion is positioned in the circumferential direction by means of the respective support pin inserted in the center insertion groove.

US Pat. No. 10,968,775

SUPPORT SYSTEM HAVING SHAPE MEMORY ALLOYS

GENERAL ELECTRIC COMPANY,...

1. A support system for a gas turbine engine, the support system comprising:a load-bearing unit comprising a first flange;
a support element supporting the load-bearing unit, the support element comprising a second flange;
a fastener connecting the first flange and the second flange;
a first super-elastic shape memory alloy component in contact with a first side of the first flange, the first side of the first flange being opposite a second side of the first flange, the second side of the first flange adjacent a first side of the second flange; and
a second super-elastic shape memory alloy component in contact with a second side of the second flange, the first side of the second flange being opposite the second side of the second flange, wherein the first and the second super-elastic shape memory alloy components are configured to deform when a load exerted by the fastener exceeds a threshold load value of the fastener.

US Pat. No. 10,968,774

BEARING HOUSING WITH BAFFLES

1. An assembly for a gas turbine engine, comprising:a bearing housing circumferentially extending around a shaft rotatable about a central axis and delimiting a bearing cavity;
a controlled gap seal between the shaft and the bearing housing, the bearing cavity defined between the controlled gap seal and a bearing, the controlled gap seal including a ring and a runner such that the ring and the runner are rotatable relative to one another about the central axis, the runner spaced apart from the ring by a gap, the gap defining a fluid passage between the bearing cavity and an environment outside the bearing cavity; and
at least one baffle secured to a surface of the bearing housing oriented toward the bearing cavity, the at least one baffle protruding from the surface and extending into the bearing cavity in proximity to the fluid passage to disrupt a fluid flow through the passage.

US Pat. No. 10,968,773

TURBINE ASSEMBLY INCLUDING AT LEAST ONE SUPERHARD BEARING

US SYNTHETIC CORPORATION,...

1. A turbine assembly, comprising:a rotatable shaft;
at least one of a compressor wheel or a turbine wheel coupled to the shaft;
a surface disposed about and coupled to the rotatable shaft, the surface extending from the rotatable shaft;
a thrust-bearing rotor disposed about and coupled to the rotatable shaft, the thrust-bearing rotor spaced from the surface, the thrust-bearing rotor including a thrust-bearing rotor surface extending from the rotatable shaft; and
a thrust-bearing stator including a first thrust-bearing stator surface and a second thrust-bearing stator surface, the first thrust-bearing stator surface oriented to bear against the surface in a thrust-bearing configuration, the second thrust-bearing stator surface oriented to generally face the thrust-bearing rotor surface.

US Pat. No. 10,968,772

ATTACHMENT BLOCK FOR BLADE OUTER AIR SEAL PROVIDING CONVECTION COOLING

Raytheon Technologies Cor...

1. A gas turbine engine comprising:a compressor section and a turbine section;
said turbine section including at least one turbine rotor having a radially extending turbine blade, and said turbine section being rotatable about an axis of rotation, and a blade outer air seal positioned radially outwardly of a radially outer tip of said at least one turbine blade, said blade outer air seal having axially spaced forward and aft portions and a central web between said axially spaced portions; and
an attachment block supported on structure within said gas turbine engine, and said attachment block mounting said blade outer air seal, and a passage extending into a chamber within said attachment block, and communicating to circumferential edges of said attachment block to direct cooling air along said central web of said blade outer air seal;
wherein said chamber including circumferentially extending fingers communicating with said passage, such that said cooling air passes into said passage, and then circumferentially into said circumferentially extending fingers, and then through cooling holes at said circumferential edges of said attachment block and along said central web.

US Pat. No. 10,968,771

METHOD AND SYSTEM FOR ICE TOLERANT BLEED TAKEOFF

GENERAL ELECTRIC COMPANY,...

1. An icing effects mitigation system comprising:a fluid duct configured to channel a first flow of fluid through the fluid duct from a duct opening to a rotatable member at least partially positioned within the fluid duct, the rotatable member comprising an inner rotatable portion and an outer rotatable portion along a radial direction; and
a duct member extending through said fluid duct in a direction approximately orthogonal to a direction of the first flow of fluid, said duct member including a bleed scoop configured to channel a second flow of a second fluid therethrough that causes ice accreted on the duct member to shed on a trajectory that impacts the rotatable member at the inner rotatable portion,
wherein the fluid duct extends between an outlet of a bladed booster rotor and an inlet of a high pressure compressor (HPC) bladed rotor, and wherein the duct member extends through the fluid duct at a location between the outlet of the bladed booster rotor and the inlet of the HPC bladed rotor, wherein said duct member is configured to channel the second flow of the second fluid intermittently such that ice accretion occurs intermittently during a first mode of operation where the second flow is stopped and ice sheds during a second mode of operation where the second flow is flowing through the duct member, and wherein the first mode of operation is a take-off engine power condition and the second mode of operation is a cruising engine power condition.

US Pat. No. 10,968,770

AXIAL RETENTION OF A FAN SHAFT IN A GAS TURBINE ENGINE

SAFRAN AIRCRAFT ENGINES, ...

1. A gas turbine engine, comprising a fan driven by a fan shaft and retractable axial retention means for said fan shaft mounted on a stator element and movable between a first operational position and a second non-operational position, wherein said retractable axial retention means comprises means for supplying fluid to at least one cavity wherein said retractable axial retention means is movably mounted so as to generate movement of the retractable axial retention means between said first operational position and said second non-operational position.

US Pat. No. 10,968,769

METHOD AND SYSTEM FOR CALIBRATING AN ENGINE CORE BY DETERMINING POWER RATING DATA OF THE ENGINE CORE

ROLLS-ROYCE plc, London ...

1. A method of calibrating an engine core of a gas turbine engine, the engine core comprising a turbine, combustion equipment, a compressor, and a core shaft connecting the turbine to the compressor, the core shaft being configured to drive a propulsive fan of the gas turbine engine, the method comprising:providing a resistance load on the core shaft, the resistance load being configured to replicate a load of the propulsive fan;
driving the engine core;
measuring a performance parameter of the engine core;
measuring a thrust generated by the engine core; and
determining power rating data of the engine core, which provides a correlation between the performance parameter and the thrust, so as to calibrate the engine core.

US Pat. No. 10,968,768

TURBOCHARGER WITH ADJUSTABLE VANES

BorgWarner Inc., Auburn ...

1. A turbocharger (1) with variable turbine geometry (VTG), havinga turbine housing (2) with a supply duct (9) for exhaust gases;
a turbine wheel (4) which is rotatably mounted in the turbine housing (2); and
a guide apparatus (18),
which surrounds the turbine wheel (4) radially at the outside,
which has a vane bearing ring (6),
which has a multiplicity of guide vanes (7) which each have a vane shaft (8) mounted in the vane bearing ring (6),
which has an adjusting ring (5) which is operatively connected to the guide vanes (7) by way of associated vane levers (20) which are fastened to the vane shafts (8) at one of their ends, wherein each vane lever (20) has, at the other end, a lever head (23) which can be placed in engagement with an associated engagement recess (24) of the adjusting ring (5), and
an actuation device (11) which has an inner lever (26) which is arranged in the turbine housing (2) and which is connected by means of an adjustment pin (25) to the adjusting ring (5),
wherein the adjustment pin (25) is welded at a first end to the adjusting ring (5) and has a welding bolt (27) on which a wear-resistant sleeve (28) is arranged, wherein the welding bolt (27) is made of a metal alloy which exhibits better welding characteristics than the wear-resistant sleeve (28), and wherein the wear-resistant sleeve (28) is made of a metal alloy which exhibits better wear resistance than the welding bolt (27), and wherein the wear-resistant sleeve (28) on the welding bolt (27) is metal-injection-molded,
wherein the welding bolt (27) has a cylindrical bolt body (29) which is equipped, on the first end, with a support disk (30), and is equipped, on a second end, with a central recess (33) which is open on one side, and
wherein the support disk (30) has a stud pin (31) with a conical shape and/or a diameter which, over the axial extent of the stud pin (31), narrows initially steeply and then more shallowly toward a distal end of the stud pin (31).

US Pat. No. 10,968,767

NESTED DIRECT VANE ANGLE MEASUREMENT SHAFT

RAYTHEON TECHNOLOGIES COR...

1. A variable vane actuation system of a gas turbine engine, comprising:a variable vane;
a vane stem operably associated with the variable vane, wherein the variable vane is configured to rotate with the vane stem;
a vane arm having a vane stem end and a vane pin end opposite the vane stem end, the vane arm being operably connected to the vane stem at the vane stem end;
a pin attached to the vane pin end of the vane arm;
a rotational variable differential transformer operably connected to the vane stem, the rotational variable differential transformer configured to detect an amount of rotation of the vane stem;
an actuator operably connected to the vane arm at the vane pin end;
a torque tuber operably connected to the actuator;
a series of mechanical linkages operably connected to the torque tube; and
an actuation ring operably connecting the series of mechanical linkages to the vane arm at the vane pin end,
wherein the rotational variable differential transformer is operably connected to the vane stem through one or more shafts passing through the torque tube.

US Pat. No. 10,968,766

DEVICE AND METHOD FOR OPERATING VOLUMETRIC EXPANSION MACHINES

ORCAN ENERGY AG, Munich ...

1. An Organic Rankine Cycle (ORC) device, comprising:an expansion machine for generating mechanical energy by expanding vapor of a working medium;
a generator connected to a shaft of the expansion machine and used for generating electric energy from mechanical energy of the expansion machine;
wherein the expansion machine and the generator form a structural unit with an exhaust vapor chamber between the expansion machine and the generator, and wherein, when the expansion machine is in operation, working medium expanded into the exhaust vapor chamber contacts the generator;
at least one opening for feeding a liquid working medium into the exhaust vapor chamber for cooling the expanded vapor;
an evaporator for evaporating liquid working medium;
a condenser for condensing vaporous working medium exiting the structural unit;
a feed pump for pumping the condensed liquid working medium to the evaporator; and
a feed line for liquid working medium leading into the exhaust vapor chamber and in fluid communication with (i) a line between the feed pump and the evaporator, or (ii) an intermediate space of a multi-stage feed pump;
wherein the feed line in fluid communication with the line between the feed pump and the evaporator is configured to tap off the liquid working medium at a high pressure downstream of the feed pump and upstream of the structural unit formed of the expansion machine and the generator; and
wherein the feed line in fluid communication with the intermediate space of the multi-stage feed pump is configured to tap off the liquid working medium between two neighboring stages of the multi-stage feed pump.

US Pat. No. 10,968,765

POWER SYSTEM WITH A COORDINATED POWER DRAW

General Electric Company,...

1. A method for operating a power system comprising a gas turbine engine, an electric machine rotatable with the gas turbine engine, and a power load driven at least in part by electrical power generated by the electric machine, the method comprising:receiving a command to operate the power load at a command output power while operating the power load at a reference output power;
operating the gas turbine engine in a maximum regulator mode to increase a power generation of the gas turbine engine when the command output power is greater than the reference output power or in a minimum regulator mode to decrease the power generation of the gas turbine engine when the command output power is less than the reference output power; and
coordinating an electric machine power draw from the gas turbine engine with a change in power generation of the gas turbine engine to maintain a rotational speed parameter of the gas turbine engine substantially constant while operating the gas turbine engine in the maximum regulator mode or in the minimum regulator mode.

US Pat. No. 10,968,764

CERAMIC MATRIX COMPOSITE HANGER HEAT SHIELD

Rolls-Royce Corporation, ...

1. A turbine shroud assembly comprisinga carrier configured to be coupled to a turbine case so as to fix other components of the turbine shroud assembly relative to the turbine case,
a blade track segment comprising ceramic matrix composite materials, the blade track segment including (i) a runner that extends at least partway about a central axis having a flow surface arranged to define a gas flow path and an exterior surface spaced radially outward of the flow surface relative to the central axis and (ii) an attachment member that extends radially outward from the exterior surface of the runner, and
a mounting assembly comprising a first metallic material configured to couple the blade track segment to the carrier, the mounting assembly including (i) a forward hanger that extends radially inward from the carrier and engages the attachment member of the blade track segment to block radially inward movement of the blade track segment relative to the carrier, (ii) an aft hanger spaced axially aft of the forward hanger that extends radially inward from the carrier and engages the attachment member of the blade track segment to block radially inward movement of the blade track segment relative to the carrier, the forward and aft hangers each having a radially-inwardly facing surface arranged in confronting relation to the exterior surface of the runner such that heat conducted from the flow surface of the runner to the exterior surface of the runner radiates toward the radially-inwardly facing surface of the forward and aft hangers, and (iii) hanger heat shields, each comprising a second metallic material different from the first metallic material, arranged radially between the exterior surface of the runner and the radially-inwardly facing surfaces of the forward and aft hangers to reduce the amount of heat transfer to the forward and aft hangers from the exterior surface of the runner during use of the turbine shroud assembly.

US Pat. No. 10,968,763

HALO SEAL BUILD CLEARANCE METHODS

Raytheon Technologies Cor...

1. A seal for use in a gas turbine engine between a static structure and a rotating member, comprising:a support ring for attachment to the static structure;
a shoe coupled to the support ring via an arm, and for facing the rotating member; and
an adhesive disposed between the shoe and the support ring,
wherein the adhesive secures the shoe with respect to the support ring against an inboard spring force provided by the arm, and
wherein the adhesive is configured to burn off at an elevated temperature to allow the shoe to move towards an inboard position.

US Pat. No. 10,968,762

SEAL ASSEMBLY FOR A TURBO MACHINE

General Electric Company,...

1. A seal assembly for a turbo machine, the seal assembly comprising:a fluid bearing wall comprising a bearing face, wherein the bearing face defines a fluid opening through the fluid bearing wall; and
a seal body extended circumferentially relative a centerline axis, wherein the seal body defines a cavity extended at least partially circumferentially through the seal body, wherein a fluid passage is defined through the seal body in fluid communication with the fluid opening through the fluid bearing wall, and wherein the cavity is in fluid isolation from the fluid passage.

US Pat. No. 10,968,761

SEAL ASSEMBLY WITH IMPINGEMENT SEAL PLATE

RAYTHEON TECHNOLOGIES COR...

1. A seal assembly for a gas turbine engine comprising:a seal including a seal body extending circumferentially between opposed mate faces, the seal body having a seal face that bounds a gas path and an opposed impingement face;
a seal carrier extending along the impingement face;
a seal member trapped between the seal carrier and the impingement face such that the seal member is circumferentially aligned with one of the mate faces;
wherein the seal carrier includes a carrier body defining a recess, and the carrier body is seated against the impingement face to define an impingement cavity along the recess; and
wherein the seal includes a pair of opposed retention hooks that extend outwardly from the seal body to define a cooling cavity, and the seal carrier includes a pair of resilient retention members on opposed sides of the carrier body, the pair of retention members dimensioned to wedge the seal carrier in the cooling cavity between the pair of retention hooks.

US Pat. No. 10,968,760

GAS TURBINE ENGINE COMPONENT FOR ACOUSTIC ATTENUATION

RAYTHEON TECHNOLOGIES COR...

1. A section for a gas turbine engine comprising:a rotor including a hub carrying a plurality of blades, the hub rotatable about a longitudinal axis, and a seal that extends outwardly from the hub to establish a sealing relationship with a plurality of vanes distributed about the longitudinal axis; and
a flow guide assembly secured to an engine static structure such that a flow path is defined between the hub and the flow guide assembly, the flow path including an inlet portion defined along the seal and an outlet portion, and the flow guide assembly including an acoustic liner that extends along the flow path;
wherein the acoustic liner defines at least one resonant chamber dimensioned with respect to an acoustic frequency range relating to the flow path;
wherein the acoustic liner includes first and second face sheets that establish the at least one resonant chamber, and the acoustic liner includes a honeycomb core disposed in the at least one resonant chamber, the honeycomb core including a plurality of honeycomb cells;
wherein surfaces of the first face sheet bounding the flow path define a plurality of perforations that interconnect the flow path and the plurality of honeycomb cells;
wherein the at least one resonant chamber includes a first resonant chamber adjacent the inlet portion and a second resonant chamber adjacent the outlet portion, the acoustic frequency range relating to the first resonant chamber differing from the acoustic frequency range relating to the second resonant chamber; and
wherein the seal is a knife edge seal that includes one or more knife edge portions supported by a neck portion, the neck portion extends radially outward from the hub with respect to the longitudinal axis such that the first resonant chamber is opposed to the neck portion along the inlet portion, and the second resonant chamber is opposed to a wall of the hub that bounds the flow path.

US Pat. No. 10,968,759

ROTARY MACHINE

MITSUBISHI HEAVY INDUSTRI...

1. A rotary machine comprising:a hub configured to be rotatable about a rotational center axis;
a casing configured to cover the hub and forming a fluid flow passage between the casing and the hub; and
a variable blade disposed in the fluid flow passage and configured to be revolvable about a pivot axis along a radial direction of the hub,
wherein the variable blade includes a hub-side end surface having a spherical shape and recessed outward in the radial direction of the hub,
wherein the hub includes:
a blade-facing hub portion including a first blade-facing surface which faces the hub-side end surface of the variable blade and which has a first spherical region having a spherical shape and protruding outward in the radial direction of the hub;
an upstream hub portion disposed upstream of the blade-facing hub portion in an axial direction of the hub and having a first outer-peripheral surface being adjacent to the first blade-facing surface in the axial direction; and
a downstream hub portion disposed downstream of the blade-facing hub portion in the axial direction and having a second outer peripheral surface being adjacent to the first blade-facing surface in the axial direction, and
wherein at least one of following condition (a) or (b) is satisfied:
(a) a downstream end of the first outer peripheral surface is disposed on an outer side of an upstream end of the first blade-facing surface in the radial direction of the hub;
(b) an upstream end of the second outer peripheral surface is disposed on an outer side of a downstream end of the first blade-facing surface in the radial direction of the hub, and
wherein a spherical center of the first spherical region is disposed on an intersection between the pivot axis of the variable blade and the rotational center axis of the rotary machine.

US Pat. No. 10,968,758

ATTACHMENT OF STRUCTURES HAVING DIFFERENT PHYSICAL CHARACTERISTICS

RAYTHEON TECHNOLOGIES COR...

1. A rotor assembly for a gas turbine engine, the assembly comprising:a composite fan blade, the fan blade including a root;
a metallic rotor including a slot for receiving the root;
the root being at least partially coated with a metal to form a metal-coated portion;
the metal-coated portion of the root being at least partially covered with an intermediate material; and
the root, metal-coated portion and intermediate material being received in the slot and bonded to the rotor.

US Pat. No. 10,968,757

PROPELLER BLADE ROOT COUPLING

RATIER-FIGEAC SAS, Figea...

1. A method of mounting an airfoil component body to a blade root, comprising:providing the airfoil component body, the airfoil component body having a connection portion, the connection portion comprising an elongate member with at least one depression formed on an outer surface thereof, wherein the airfoil component body is formed from a fibre-reinforced polymer material;
inserting the connection portion into a bore formed in the blade root, the blade root being a metal blade root; and
deforming the blade root such that a portion of the inner surface of the bore engages with at least one of the depressions in the connection portion to mechanically couple the blade root to the airfoil component body.

US Pat. No. 10,968,756

THERMAL BARRIER COATING COMPOSITIONS, METHODS OF MANUFACTURE THEREOF AND ARTICLES COMPRISING THE SAME

RAYTHEON TECHNOLOGIES COR...

1. A process for coating a component, comprising:applying a bond coat on a substrate of a component;
applying a thermal barrier material to the bond coat; and
applying a coating containing polynuclear aluminum oxide/hydroxide clusters, to the thermal barrier material; wherein the polynuclear aluminum oxide/hydroxide clusters are Al13 Keggin clusters having the formula [AlO4Al12(OH)24(H2O)12]7+, or are Al13 Keggin complexes of salts of the Al13 Keggin clusters, wherein the Al13 Keggin complex has the formula {[AlO4Al12(OH)24(H2O)12]7+*7NO3?}.

US Pat. No. 10,968,755

COOLING STRUCTURE FOR VANE

Doosan Heavy Industries C...

10. A gas turbine comprising:a compressor configured to draw and compress air;
a combustor configured to mix the air compressed by the compressor with fuel; and
a turbine configured to rotate a plurality of turbine blades using gas discharged from the combustor and to produce electric power, wherein:
the compressor includes a plurality of compressor blades and a plurality of compressor vanes that are alternately arranged;
the turbine includes the plurality of turbine blades and a plurality of turbine vanes that are alternately arranged;
at least one of the compressor vanes and the turbine vanes includes:
an airfoil having an inflow chamber for introducing cooling air, a leading edge, a trailing edge, and a sidewall between the leading edge and the trailing edge, a plurality of film holes being defined in the sidewall and communicating with the inflow chamber, and a cut-back disposed proximal to the trailing edge and defined by the sidewall;
an insert disposed within the sidewall and spaced apart from an inner surface of the sidewall to create a gap permitting a gap flow of the cooling air toward the trailing edge, a plurality of insert holes being defined in the insert and arranged in a plurality of rows, each of the plurality of rows of insert holes including insert holes arranged in a straight line from the leading edge to the trailing edge; and
a plurality of posts extending from the sidewall and contacting an outer surface of the insert,
wherein each of the plurality of insert holes is configured to create an impinging jet of the cooling air from the inflow chamber to impinge on the sidewall,
wherein each of the plurality of posts is disposed in the gap adjacent to a corresponding one of the plurality of insert holes and includes a first side facing toward the leading edge and a second side facing toward the trailing edge, each of the first and second sides including a sidewall end coupled to the inner surface of the sidewall and an insert end coupled to the outer surface of the insert and separated from the corresponding one of the plurality of insert holes in a direction of the gap flow of the cooling air,
wherein the insert end of the second side of at least one of the plurality of posts is disposed upstream of the corresponding one of the plurality of insert holes in the direction of the gap flow of the cooling air, and the sidewall end of the second side of the at least one of the plurality of posts is disposed downstream of the corresponding one of the plurality of insert holes in the direction of the gap flow of the cooling air,
wherein the first side of each of the plurality of posts is disposed perpendicularly with respect to each of the sidewall end and the insert, and
wherein the second side of the at least one of the plurality of posts includes an inclined surface configured to
receive the impinging jet of the corresponding one of the plurality of insert holes before the impinging jet impinges on the sidewall, and
maintain separation between the gap flow and the impinging jet of the corresponding one of the plurality of insert holes until the gap flow passes the inclined surface of the at least one of the plurality of posts.

US Pat. No. 10,968,754

AEROFOIL

Rolls-Royce plc

1. An aerofoil for use in a gas turbine engine including:a body comprising a first body portion and a second body portion bonded to the first body portion, the first and second body portions having outer faces forming an outer surface of the aerofoil, and inner faces opposing the outer faces;
a channel formed within the aerofoil by the inner faces of the first body portion and the second body portion;
a dividing sheet provided within the channel, such that a cooling passage is formed between the dividing sheet and the inner face of at least one of the first body portion and the second body portion, the cooling passage arranged to conduct cooling fluid adjacent the body, for cooling the body;
a plurality of rear struts extending from the inner face of the first body portion to the dividing sheet; and
a plurality of front struts extending from the inner face of the second body portion to the dividing sheet,
wherein the body has a rear face and an opposing front face; and wherein the dividing sheet extends parallel to at least a portion of a rear face of the body, such that the cooling passage is formed parallel to the rear face, and
wherein the plurality of rear struts and the plurality of front struts are sized such that at least a first portion of the cooling passage has a constant width along an axial extent and a radial height of the first portion of the cooling passage, the first portion of the cooling passage defined between a front strut of the plurality of front struts located closest to a leading edge of the aerofoil relative to the other front struts of the plurality of front struts and a rear strut of the plurality of rear struts located closest to a trailing edge of the aerofoil relative to the other rear struts of the plurality of rear struts, the radial height defined as a radial extent of the aerofoil between a root of the aerofoil and a tip of the aerofoil.

US Pat. No. 10,968,753

AIRFOIL HAVING IMPINGEMENT LEADING EDGE

RAYTHEON TECHNOLOGIES COR...

1. An airfoil for a gas turbine engine, the airfoil comprising:an airfoil body extending in a radial direction from a first end to a second end, and extending axially from a leading edge to a trailing edge;
a leading edge channel formed in the leading edge of the airfoil body, the leading edge channel having a first channel wall and a second channel wall that join at a channel base to define the leading edge channel, the leading edge channel extending in a radial direction along the leading edge of the airfoil body;
a first leading edge impingement cavity located within the airfoil body proximate the leading edge, wherein the first channel wall forms a portion of the airfoil body defining the first leading edge impingement cavity;
a leading edge feed cavity arranged aft of the first leading edge impingement cavity and arranged to supply air into the first leading edge impingement cavity; and
a first leading edge impingement hole formed in the first channel wall and angled such that air flowing from the first leading edge impingement cavity and through the first leading edge impingement hole impinges upon a portion of the second channel wall.