US Pat. No. 11,111,909

LIQUID FOAM DELIVERY DEVICE

FANER AROMA PRODUCT CO., ...


1. A liquid foam delivery device, comprising:a motor having a rotating shaft;
a linear transmission mechanism disposed at the rotating shaft;
a unidirectional input/output gas mechanism connected to the linear transmission mechanism; and
a unidirectional input/output liquid mechanism connected to the rotating shaft, wherein the unidirectional input/output liquid mechanism comprises an input/output liquid casing and a gear train, the input/output liquid casing has a liquid-receiving space as well as a liquid inlet and a liquid outlet which are in communication with the liquid-receiving space, the gear train is disposed in the liquid-receiving space to rotate when driven by the rotating shaft, so as to deliver a liquid admitted through the liquid inlet to the liquid outlet,
wherein the linear transmission mechanism comprises an eccentric wheel, a bearing and a reciprocating transmission component, the eccentric wheel is eccentrically fitted around the rotating shaft, the bearing is fitted around the eccentric wheel, the reciprocating transmission component is fitted around the bearing, and an outer rim of the reciprocating transmission component is provided with a push element, a protruding direction of the push element is perpendicular to an axial direction of the rotating shaft, the reciprocating transmission component pushes the unidirectional input/output gas mechanism in a reciprocating manner by the rotational motion of the rotating shaft and the eccentric wheel,
the unidirectional input/output gas mechanism comprises a suction cup component and a film unidirectional valve component, the suction cup component has an end portion connected to the reciprocating transmission component and has a sucking surface connected to the film unidirectional valve component, and the film unidirectional valve component includes a gas inlet and a gas outlet, the film unidirectional valve component comprises a first half valve adjacent to the suction cup component, a second half valve away from the suction cup component and a resilient film sheet, the first half valve is in communication with the suction cup component, the second half valve includes the gas inlet and the gas outlet, the first half valve and the second half valve together define a gas-receiving space, the gas-receiving space is in communication with the gas inlet and the gas outlet, and the resilient film sheet is disposed in the gas-receiving space, the second half valve has a second protruding opening portion in communication with the gas inlet and a second dented opening portion in communication with the gas outlet, the first half valve has a first dented opening portion opposite the second protruding opening portion and has a first protruding opening portion opposite the second dented opening portion, and the resilient film sheet has two resilient valves disposed between the first dented opening portion and the second protruding opening portion and between the first protruding opening portion and the second dented opening portion, respectively, the unidirectional input/output gas mechanism admits gas into the gas inlet and discharges gas from the gas outlet in a direction perpendicular to the rotating shaft through the linear reciprocating motion of the linear transmission mechanism.

US Pat. No. 11,111,908

HYDROSTATIC SYSTEM AND PUMPING STATION FOR AN OIL OR GAS PIPELINE

Voith Patent GmbH, Heide...


1. A hydrostatic system, comprising:a hydraulic pressure source;
a first hydraulic motor having an output shaft that forms a mechanical power output of the hydrostatic system, and/or at least one consumer that is provided with pressurized hydraulic medium from said hydraulic pressure source;
a pressure line connecting one or both of said first hydraulic motor, for its own propulsion, or said at least one consumer, for pressurization, to said hydraulic pressure source;
a hydraulic motor/pump unit including an additional hydraulic motor and a hydraulic pump, propulsively connected with each other, to enable said hydraulic pump to be propelled by said additional hydraulic motor;
said additional hydraulic motor being connected to said hydraulic pressure source, for its own propulsion, in series with said first hydraulic motor and/or in series with said at least one consumer; and
said hydraulic pump having a pressure side connected to said pressure line.

US Pat. No. 11,111,907

FLUID TRANSFER AND DEPRESSURIZATION SYSTEM

TPE MIDSTREAM LLC, Lutz,...


1. A fluid transfer system configured to transfer a fluid from a first location to a second location inhibiting exposure of the fluid to atmosphere wherein the fluid transfer system comprises:a fluid inlet, said fluid inlet being operably coupled to the first location;
a fluid discharge port, said fluid discharge port being operably coupled to the second location;
a drive chamber, said drive chamber having an interior volume, said drive chamber having a first end and a second end;
a first switch in said drive chamber on or proximate said first end of said drive chamber;
a second switch in said drive chamber on or proximate said second end of said drive chamber;
a drive assembly disposed in said drive chamber, said drive assembly being movable within said interior volume of said drive chamber, said drive assembly having a first movement and a second movement, said first movement and said second movement of said drive assembly being reciprocal, said drive assembly having a drive member, said drive member sealably mounted within the interior volume of said drive chamber, said drive member having a first side and a second side, said drive member configured to reciprocally traverse within the interior volume of said drive chamber, said drive member to trigger said first switch during said first movement and trigger said second switch during said second movement;
a first cylinder, said first cylinder operably coupled to said drive chamber at said first end thereof, said first cylinder having a first end and a second end, said first cylinder having an interior volume, said first cylinder being operably coupled to said fluid inlet;
a second cylinder, said second cylinder being operably coupled to said drive chamber at said second end of said drive chamber, said second cylinder having a first end and a second end, said second cylinder having an interior volume, said second cylinder being operably coupled to said fluid discharge port;
a controller, said controller being operably coupled to said drive chamber, said controller configured to facilitate the first movement and the second movement of the drive assembly, wherein the fluid is transferred from the first location to the second location during execution of the first movement and second movement of the drive assembly;
a first coupling block, said first coupling block being mounted intermediate said first cylinder and said drive chamber; and
a second coupling block, said second coupling block being mounted intermediate said second cylinder and said drive chamber, said second coupling block having an upper passage and a lower passage, said lower passage configured to facilitate flow of fluid therethrough from said first cylinder to the interior volume of said second cylinder.

US Pat. No. 11,111,906

ONSHORE EQUIPPED OCEAN THERMAL AND HYDRAULIC ENERGY CONVERSION SYSTEM AND METHOD

SAUDI ARABIAN OIL COMPANY...


1. An ocean thermal and hydraulic energy conversion system comprising:a closed loop assembly comprising a first pipeline filled with a working fluid, a working fluid pressurizer and a first turbine;
a first heat exchanger;
a water junction;
a first water supply line adapted to transport high temperature water to the first heat exchanger and then to the water junction,
wherein the first heat exchanger is adapted to evaporate the working fluid from a working fluid liquid into a working fluid vapor using the high temperature water, and the working fluid vapor powers the first turbine;
a first generator connected to the first turbine and adapted to generate electricity by the powered first turbine;
a second heat exchanger;
a second water supply line adapted to transport low temperature water to the second heat exchanger and then to the water junction,
wherein the second heat exchanger is adapted to condense the working fluid vapor to a working fluid liquid using the low temperature water;
a hydraulic converter adapted to receive the high and low temperature water from the water junction and convert the hydraulic energy into electricity.

US Pat. No. 11,111,905

WIND TURBINE AND A METHOD FOR OPERATING A WIND TURBINE


1. A wind turbine comprising:a nacelle; and
a cooling circuit, wherein the cooling circuit comprises at least one internal cooling device within the nacelle and at least one external cooling device outside of the nacelle;
wherein a heat exchanging device coupling the cooling circuit with a second cooling circuit is provided; wherein the second cooling circuit is a closed circuit; and wherein the second cooling circuit comprises a further external cooling device outside of the nacelle.

US Pat. No. 11,111,903

YAW AUTO-CALIBRATION FOR A WIND TURBINE GENERATOR

American Superconductor C...


1. A yaw auto-calibration method configured to calibrate at least one anemometer of a yaw control system to correct for yaw misalignment, the yaw control system configured to adjust a wind turbine nacelle position about a yaw axis to align the wind turbine with the direction of the wind inflow, the yaw auto-calibration method comprising:collecting wind turbine data over a plurality of time periods, the wind turbine data including wind speed and wind direction from the at least one anemometer;
determining from the collected data a wind direction compensation signal associated with a plurality of wind speed ranges; the wind direction compensation signal corresponding to the effects on the at least one anemometer data due to yaw misalignment;
providing the wind compensation signal to the yaw control system to adjust the wind direction data of the at least one anemometer for each of the associated wind speed ranges;
wherein the step of collecting includes calculating an average wind speed and an average wind direction for each time period of the plurality of time periods for the at least one anemometer and binning the average wind speed and average wind direction for each time period in a bin location based on a range of wind speeds and a range of wind directions;
wherein the wind turbine data further includes an average power produced by and an average rotational speed of an electrical generator in the wind turbine and wherein the average power and the average speed of the electrical generator for each time period is associated with the binned average wind speed and average wind direction for that time period;
wherein a performance value correlated to the average power of the electrical generator and the average wind speed is calculated for each time period and is associated with the binned average wind speed and average wind direction for that time period;
wherein for each wind speed range each performance value calculated over the plurality of time periods is plotted against the average wind direction corresponding to the performance value;
wherein the step of determining a wind direction compensation signal associated with a wind speed range includes determining from the plotted performance value, a maximum performance value for each wind speed range and wherein the step of determining further includes correlating the maximum performance value for each wind speed range with the associated average generator speed and plotting the maximum performance wind direction against average generator speed for each wind speed range; and
wherein the maximum performance wind direction associated with the average generator speed for each wind speed range constitutes the wind direction compensation signal for the wind speed range.

US Pat. No. 11,111,902

NACELLE AND ROTOR FOR A WIND TURBINE, AND METHOD

Wobben Properties GmbH, ...


1. A nacelle for a wind power installation having a nominal output of more than 3000 kilowatts (kW), comprising:at least one azimuth drive that is a planetary-gearbox-free electric actuator drive and configured to track a wind direction of the nacelle, the planetary-gearbox-free electric actuator drive including a first toothed-pin gearbox stage and a second toothed-pin gearbox stage having a higher gearing than the first toothed-pin gearbox stage, wherein the second toothed-pin gearbox stage includes:a plurality of toothed pins that are movable; and
a profiled disk, wherein the plurality of toothed pins are disposed on a radial circumferential face of the profiled disk on an end of the profiled disk facing away from an input shaft or an output shaft, wherein the plurality of toothed pins perform a translatory movement radial to the input shaft or the output shaft, and wherein a force transmission from the input shaft to the output shaft is performed by the translatory movement of the plurality of toothed pins.


US Pat. No. 11,111,901

SYSTEM AND A METHOD FOR OPTIMAL YAW CONTROL


1. A system adapted for optimal yaw control of a wind turbine, comprising:a tower carrying a rotatable nacelle rotated by a yaw motor,
wherein the nacelle comprises at least one generator connected by a shaft to a rotor, comprising one or more wings, said nacelle further comprises a sensor for detecting wind direction and wind velocity,
the system performs measurement and stores data related to power production of the wind turbine, wind velocity and wind direction,
wherein power production of the wind turbine measured in a positive direction to actual yaw position, generating a positive yaw error, is accumulated in a first storage and power production of the wind turbine measured in a negative direction to actual yaw position, generating a negative yaw error, is accumulated in a second storage,
whereby data related to power production in positive and negative yaw errors is accumulated during a defined time period that is longer than 24 hours,
wherein the system calculates an effect of the rotor (Cp) which is defined as:Cp=P/(½*A*Rho*V3);

where P is generated power, V is wind speed, Rho is air density, and A is rotor area;
wherein the system is adapted to provide the positive and negative yaw error and effect of the rotor (Cp) to a yaw correction algorithm,
wherein the yaw correction algorithm utilizes the effect of the rotor (Cp) and comparison of power production accumulated for positive and negative yaw errors to generate a power difference signal (Perr),
wherein the system is further adapted to transmit the power difference signal (Perr) to a PI controller which performs integration of the signal (Perr) and generates and communicates a yaw offset set point to a yaw controller, and
wherein the yaw controller communicates the yaw offset setpoint to the wind turbine and controls the wind turbine yaw using the yaw offset setpoint.

US Pat. No. 11,111,900

WIND TURBINE AUGMENTED BY A DIFFUSER WITH A VARIABLE GEOMETRY

TARBIAT MODARES UNIVERSIT...


1. A diffuser-augmented wind turbine, comprising:an annular diffuser comprising a first annular leading edge and a first annular trailing edge;
a rotor disposed within the annular diffuser, the rotor comprising a hub and at least one rotor blade coupled to the hub, the rotor coaxial with the annular diffuser about a main axis, the rotor rotatable about the main axis on a rotor plane perpendicular to the main axis, the first annular leading edge configured to allow a first air stream to be provided to the rotor plane;
a flared diffuser assembly comprising a second annular leading edge and a second annular trailing edge, the flared diffuser coaxially coupled to the annular diffuser about the main axis, the second leading edge in fluid communication with the first trailing edge, the second leading edge configured to allow the first air stream received from the first trailing edge to enter the flared diffuser assembly, the flared diffuser assembly further comprising:a fixed flared diffuser comprising a first plurality of flared petals extending from the second annular leading edge toward the second annular trailing edge, each flared petal of the first plurality of flared petals extended between a first leading edge and a first trailing edge, the first leading edge attached to the second annular leading edge, each flared petal of the first plurality of flared petals further comprising two first side edges, the first leading edge and the first trailing edge comprising arcs extended between the two first side edges;
a rotatable flared diffuser comprising an annular leading edge disposed within and encompassed by the second annular leading edge, the rotatable flared diffuser comprising a second plurality of flared petals extending from the annular leading edge toward the second annular trailing edge, each flared petal of the second plurality of flared petals extended between a second leading edge and a second trailing edge, each flared petal of the second plurality of flared petals further comprising two second side edges, the second leading edge and the second trailing edge comprising arcs extended between the two second side edges;
the rotatable flared diffuser coaxial with the fixed flared diffuser about the main axis, the rotatable flared diffuser rotatable about the main axis; and
a nacelle, the hub rotatably coupled with the nacelle.


US Pat. No. 11,111,899

AXIAL PISTON MACHINE WITH VALVE SLIDES INTEGRATED INTO THE CONNECTOR PLATE

Robert Bosch GmbH, Stutt...


1. An axial piston machine, comprising:a housing;
a driveshaft mounted rotatably in the housing relative to a first axis of rotation via at least one pivot bearing;
a cylinder drum configured to rotate relative to a second axis of rotation and disposed in rotational drive connection with the driveshaft;
a set piston received linearly movably in the housing in a direction of an adjusting axis, the set piston disposed in entraining connection with the cylinder drum such that a pivot angle between the first and second axes of rotation is adjustable, the housing having a first fluid port and a second fluid port that are connected to the cylinder drum such that a rotation of the cylinder drum involves a fluid flow between the first and second fluid ports when the pivot angle is different from zero;
a control valve arranged coaxially to the adjusting axis;
a first valve slide that is linearly movable in a direction of a first valve axis the first valve slide having a first end connected to the first fluid port and a second end connected to the second fluid port, the first valve slide having a central region that defines a control point and being configured such that a lower of pressures from a pressure at the first fluid port and a pressure at the second fluid port is connected to the control point, the control point connected via a fixed first throttle and further via a second throttle to an interior of the housing; and
a second valve slide that is linearly movable in a direction of a second valve axis and configured to adjust the second throttle via movement of the second valve slide, the second valve slide acted upon by (i) a pressure at the control point in an opening direction of the second throttle and (ii) a first spring in a closing direction of the second throttle,
wherein the first valve axis is (i) arranged in the direction of the adjusting axis between the set piston and the control valve or in a region of the control valve and (ii) oriented transverse to the adjusting axis.

US Pat. No. 11,111,898

VOLTAGE CONVERTER-CONTROLLED DAMLESS HYDROKINETIC RIVER TURBINES

Differential Dynamics Cor...


1. A control and power generating assembly for controlling variable rotational speed input such that an output of the control and power generating assembly provides a constant speed output to a variable load from the variable rotational speed input, the control assembly for outputting a baseload value of electric energy to the variable load at a constant electric frequency, the control and power generating assembly comprising:an input shaft for connecting a first and a second ring gear and carrier gear assembly through a spur/helical gear assembly, the input shaft for receiving a variable rotational input speed received from an energy harnessing module responsive to one of an input wind and water flow speed and direction,
the second ring and carrier gear assembly of the first and second ring and carrier gear assembly and the spur/helical gear assembly connected to a generator shaft of a first generator,
the first generator for receiving a control rotational speed input from a control motor connected to the first and second ring gear and carrier gear assembly by a first sun gear of a control shaft of the control motor,
a control rotational speed output of the spur/helical gear assembly by a second sun gear of the control shaft of the control motor controlling the control rotational speed input to the control motor,
a constant rotational speed output of the second ring and carrier gear assembly to the first generator,
the control motor for receiving an electrical control signal from a series-connected voltage regulator and a variable voltage transformer,
the control motor, voltage regulator and variable voltage transformer for controlling a rotational speed of a generator shaft of an output generator to a constant rotational speed via a feedback rotational speed received from the first generator by the spur/helical gear assembly,
and the output generator outputting the baseload value of electric energy at the constant electric frequency to the variable load.

US Pat. No. 11,111,897

METHOD FOR CONTROLLING A WAVE POWER SYSTEM BY MEANS OF A CONTROL OBTAINED BY MINIMIZING AN OBJECTIVE FUNCTION WEIGHTED AND DISCRETIZED BY THE TRAPEZOIDAL RULE

IFP ENERGIES NOUVELLES, ...


1. A method of controlling a wave energy system that converts energy of waves into electrical or hydraulic energy, the wave energy system comprising at least one mobile device that cooperates with at least one energy converter machine, and the at least one mobile device oscillates in motion with respect to the at least one energy converter machine, comprising:a) constructing a dynamic model of the wave energy system relating velocity of the at least one mobile device to a force exerted by the waves on the at least one mobile device and to the force exerted by the at least one energy converter machine on the at least one mobile device;
b) constructing an energy model of the wave energy system relating average power generated by the at least one energy converter machine to force exerted by the at least one energy converter machine on the at least one mobile device to the velocity of the at least one mobile device and to the efficiency of the wave energy system;
c) predicting the force exerted by the waves on the at least one mobile device for a predetermined time period;
d) determining a control value of the force exerted by the at least one energy converter machine on the at least one mobile device which maximizes average power generated by the at least one energy converter machine by:i) determining an objective function representative of the power generated by the at least one energy converter machine by use of the prediction of the force exerted by the waves on the at least one mobile device, of the dynamic model and of the energy model;
ii) discretizing the objective function by a trapezoidal rule; and
iii) weighting, in the discretized objective function, future values of control by predetermined weighting coefficients;
iv) determining the control value from the force exerted by the at least one energy converter machine on the at least one mobile device by minimizing the discretized and weighted objective function; and

e) controlling the at least one energy converter machine by use of the control value.

US Pat. No. 11,111,896

STARTER MOTOR WITH INTEGRATED SOLID STATE SWITCH


1. A starter motor connected to a power supply and operable to start an internal combustion engine, comprising:an outer housing that encloses a commutator and a series of brushes;
a solid state switching device associated with the outer housing and movable between an open position and a closed position; and
a speed sensing circuit for controlling of the solid state switching device in response to a sensed engine speed;
wherein current flow from the power supply through the commutator is prevented when the solid state switching device is in the open position and is allowed when the solid state switching device is in the closed position, wherein the starter motor is operated to start the internal combustion engine when the solid state switching device is in the closed position, and wherein the speed sensing circuit causes the solid state switching device to move to the open position in response to the sensed engine speed being a predetermined running speed that indicates the internal combustion engine is running.

US Pat. No. 11,111,895

SAFELY INITIATING AN AUTONOMOUS VEHICLE RIDE

GM Cruise Holdings, LLC, ...


1. An autonomous vehicle comprising:a user interface;
one or more in-cabin sensors disposed in a cabin of the autonomous vehicle configured to observe the cabin of the autonomous vehicle and store observations as in-cabin data; and
a computing system that is in communication with the user interface and the one or more sensors, wherein the computing system comprises:at least one processor; and
at least one memory that stores computer-executable instructions that, when executed by the at least one processor, causes the at least one processor to:output information through the user interface to inform a passenger of an action that the passenger needs to enact prior to the autonomous vehicle initiating motion;
determine that the passenger has enacted the action based on the in-cabin data received from the one or more in-cabin sensors; and
in response to determining that the passenger has enacted the action, initiate motion of the autonomous vehicle.



US Pat. No. 11,111,894

ENGINE STOP/START INHIBIT DURING VEHICLE SERVICE

Ford Global Technologies,...


1. An engine control method, comprising:automatically stopping an engine responsive to vehicle operating conditions; and
inhibiting automatic starting of the engine via a controller in response to an indication that service is being performed on a vehicle as determined via the controller according to output of one or more sensors including vehicle suspension sensors, tire pressure sensors, a camera, fluid level sensors, or inertial sensors.

US Pat. No. 11,111,892

DEVICE FOR SENSING THE STATE OF AN INJECTOR

LIEBHERR-COMPONENTS DEGGE...


1. A device for state detection of an injector comprising:an injector for injecting fuel into an engine combustion chamber;
a switch that is adapted to change its switch state in dependence on a state of the injector; and
an evaluation unit for detecting the switch state of the switch, wherein
a first switch contact of the switch is connected to an electrical input line of the injector; and
a second switch contact of the switch is connected to ground, and
the evaluation unit is adapted to carry out a first current measurement for a current (IHS, ICT) flowing into the injector and into the switch and a second current measurement for the current (ILS) flowing into the injector.

US Pat. No. 11,111,891

FUEL SUPPLY DEVICE

DENSO CORPORATION, Kariy...


1. A fuel supply device comprising:a flange attached to an opening portion of a fuel tank;
a pump unit disposed in the fuel tank and configured to discharge a fuel out of the fuel tank;
a supporting pillar connecting the flange to the pump unit; and
a boss fixed to the flange, one end of the supporting pillar being inserted into the boss, wherein
a direction perpendicular to an axial direction of the supporting pillar is defined as an axis perpendicular direction,
the boss is made of a material different from that of the flange, and
the boss includes a stress concentration portion configured to be preferentially broken when a force having a predetermined value or more is applied to the other end of the supporting pillar.

US Pat. No. 11,111,890

FUEL SUPPLY DEVICE

DENSO CORPORATION, Kariy...


1. A fuel supply device comprising:a supply main body, which is configured to be inserted through an insertion opening of a fuel tank while the supply main body is oriented such that a specific inserting direction of the supply main body is directed toward the insertion opening;
a surface level detection device that is configured to detect a level of a surface of fuel through use of a float, which is configured to float on the fuel, wherein:the supply main body includes a lower limit stopper, which limits displacement of the float toward a lower side, wherein the supply main body is configured to be placed in an inside of the fuel tank and supply the fuel to an outside of the fuel tank;
the surface level detection device includes a surface level detection unit that includes the float and is rotatable relative to the supply main body;
rotation of the surface level detection unit toward the lower side is limited through contact of the surface level detection unit to the lower limit stopper; and
a rotational range of the surface level detection unit is defined to include at least a space located on a side of the supply main body in the inserting direction; and

a support stay that supports the supply main body in a manner that enables rotation of the supply main body about an imaginary main body rotational axis that serves as a rotational center of the supply main body, wherein:
the supply main body is held in an installation orientation of the supply main body, when the supply main body is installed in an installed state in the inside of the fuel tank;
the supply main body is in an insertion orientation when the supply main body is being inserted through the insertion opening;
the supply main body is rotated toward an upper side relative to the support stay when the supply main body is moved to the installation orientation from the insertion orientation;
in the insertion orientation, the surface level detection unit is rotatable relative to the supply main body;
in a state where the supply main body is placed in the insertion orientation, at which an imaginary rotational center axis of the surface level detection unit and a center of gravity of the surface level detection unit are placed along an imaginary plane that extends in a gravitational direction, a distal end part of the surface level detection unit, which is furthermost from the imaginary rotational center axis of the surface level detection unit, is located on one side of the imaginary plane, which is opposite to a bottom of the supply main body in a direction that is perpendicular to the imaginary plane;
the bottom of the supply main body is configured to contact a bottom wall surface of the fuel tank when the supply main body is held in the installation orientation, and the imaginary main body rotational axis is located on another side of the imaginary plane which is opposite to the one side in the direction that is perpendicular to the imaginary plane;
the distal end part is configured to contact the bottom wall surface and slide along the bottom wall surface toward the upper side as the supply main body is moved from the insertion orientation to the installation orientation;
the surface level detection unit includes a sender arm that is formed in one-piece and is in a form of rod;
the sender arm is configured to rotate about the imaginary rotation center axis;
the float is coupled to a distal end part of the sender arm; and
the center of gravity is located at the float.

US Pat. No. 11,111,889

RECIRCULATION MODULE AND FUEL PREFILTER UNIT


1. A recirculation module for a fuel prefilter unit for filtering fuel to be supplied to an internal combustion engine, the recirculation module comprising:a module housing;
a check valve accommodated in the module housing;
a temperature-controlled actuating element accommodated in the module housing and configured to transfer the recirculation module, as a function of a filter raw side feed temperature of the fuel, from a cold start state into a normal operating state and from the normal operating state into the cold start state;
wherein, in the cold start state, the recirculation module is configured to enable fluid communication of an engine return line, extending from the internal combustion engine to the recirculation module, with a raw side of a filter element of the fuel prefilter unit and is configured to separate the engine return line in regard to fluid communication from a tank return line of a tank of the internal combustion engine;
wherein, in the normal operating state, the recirculation module is configured to separate the engine return line in regard to fluid communication from the raw side of the filter element of the fuel prefilter unit and configured to enable fluid communication of the engine return line with the tank return line;
wherein the check valve prevents a return flow of fuel from the tank return line into the engine return line;
wherein the temperature-controlled actuating element is configured to transfer the recirculation module into an intermediate state, wherein the intermediate state is provided between the cold start state and the normal operating state, wherein, in the intermediate state, the recirculation module is configured to enable fluid communication of the engine return line with the raw side of the filter element and enable fluid communication of the engine return line with the tank return line.

US Pat. No. 11,111,888

FUEL NOZZLES

Delavan Inc., West Des M...


1. A nozzle, comprising:a nozzle body defining a longitudinal axis including:an air passage;
a fuel circuit radially outboard from the air passage with respect to the longitudinal axis, the fuel circuit extending from a fuel circuit inlet to a fuel circuit annular outlet, wherein the fuel circuit is defined between a fuel circuit inner wall and a fuel circuit outer wall, wherein at least a portion of the fuel circuit outer wall is radially outboard from the fuel circuit inner wall with respect to the longitudinal axis; and
a cooling circuit defined within at least one of the fuel circuit inner wall and the fuel circuit outer wall, wherein the cooling circuit extends from a first axial position proximate the fuel circuit inlet to a second axial position proximate the fuel circuit outlet; and

a stem operatively connected to a fuel manifold of the nozzle body, wherein the stem includes three liquid channels for fluid communication with at least one of the fuel circuit or the cooling circuit, wherein one of the three liquid channels is a coolant-in channel in fluid communication with a distribution channel of the cooling circuit to provide coolant thereto, wherein one of the three liquid channels is a coolant-out channel in fluid communication with a collection channel of the cooling circuit to receive coolant therefrom, wherein the distribution channel and the collection channel are circumferentially spaced apart from one another.

US Pat. No. 11,111,887

ABSOLUTE HUMIDITY SENSOR

DENSO CORPORATION, Kariy...


1. An absolute humidity sensor comprising:a temperature sensor placed in an environment allowing air to flow and configured to output a temperature signal as a sensor signal corresponding to temperature of air;
a relative humidity sensor placed in the environment and configured to output a relative humidity signal as a sensor signal corresponding to relative humidity of air;
an absolute humidity acquisition unit configured to acquire absolute humidity of air from the temperature signal and the relative humidity signal, wherein the temperature sensor differs from the relative humidity sensor in responsiveness when the temperature of air changes; and
a delay adjustment unit configuredto delay an output from one of the temperature sensor and the relative humidity sensor, which is a high response sensor having a higher responsiveness, and
to reconcile change-behaviors of the output from the temperature sensor and the output from the relative humidity sensor in response to a temperature change in air, wherein

the absolute humidity acquisition unit is configured to acquire the absolute humidity based on the sensor signal from an other of the temperature sensor and the relative humidity sensor, which is a low response sensor having a lower responsiveness, and the sensor signal, which is from the high response sensor and delayed in the delay adjustment unit.

US Pat. No. 11,111,886

EGR SYSTEM OF ENGINE

Mazda Motor Corporation, ...


1. An exhaust gas recirculation (EGR) system of an engine, comprising:an engine body including:a cylinder head provided in an upper part of the engine body and forming a plurality of combustion chambers in which combustion is performed, a first end surface, and a second end surface, the plurality of combustion chambers being lined up between the first end surface and the second end surface;

an intake passage configured to introduce intake air into each of the plurality of combustion chambers via an intake manifold attached to the cylinder head;
an exhaust passage connected to the cylinder head and through which exhaust gas is discharged from the combustion chambers; and
an EGR passage connecting the exhaust passage to the intake passage and configured to recirculate the exhaust gas as EGR gas to the intake passage, the EGR passage including:an EGR cooler configured to cool the EGR gas while the EGR gas flows from a gas inflow port to a gas outflow port;
an EGR internal passage passing through the cylinder head, on an upstream side of the EGR cooler; and
a relay passage extending outside the cylinder head and connecting the EGR internal passage to the EGR cooler,

wherein the cylinder head is formed in the first end surface with a head EGR gas exit from which the EGR gas is discharged after passing through the cylinder head,
wherein the EGR cooler is formed in a columnar shape having the gas inflow port at one end side in a longitudinal direction and the gas outflow port at the other end side in the longitudinal direction, and is arranged above the intake manifold so as to locate the gas inflow port on the first end surface side and the gas outflow port on the second end surface side, the relay passage communicating with the EGR internal passage, on an external side of the engine compared to the head EGR gas exit, and
wherein the EGR cooler inclines downward from the gas outflow port toward the gas inflow port, and the relay passage is connected to the gas inflow port while being bent downward toward the upstream side.

US Pat. No. 11,111,885

SYSTEMS AND METHODS FOR PURGING A FUEL VAPOR CANISTER IN DUAL-PATH PURGE SYSTEMS

Ford Global Technologies,...


1. A method comprising:purging fuel vapors from a fuel vapor storage canister to an engine of a vehicle via a single path; and
in response to an inferred increase in a concentration of the fuel vapors being purged to the engine via the single path, switching to purging the fuel vapors to the engine via two paths including the single path, simultaneously.

US Pat. No. 11,111,884

SPARK-IGNITION INTERNAL COMBUSTION ENGINE HAVING UREA INTRODUCTION DEVICE AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE OF THIS TYPE

Bayerische Motoren Werke ...


1. A spark-ignition internal combustion engine, comprising:a combustion chamber;
an air inlet tract, wherein air is suppliable to the combustion chamber via the air inlet tract;
an exhaust tract, wherein exhaust gases are dischargeable from the combustion chamber via the exhaust tract; and
a urea introduction device with a urea injection nozzle, wherein an aqueous urea solution is introducible into the combustion chamber via the urea injection nozzle, wherein the urea injection nozzle is disposed in the combustion chamber or upstream of the combustion chamber with respect to an air flow from the air inlet tract into the combustion chamber, and wherein the aqueous urea solution is a liquid which comprises urea and demineralized water.

US Pat. No. 11,111,883

DIAGNOSTIC APPARATUS FOR EVAPORATIVE FUEL PROCESSING SYSTEM

SUBARU CORPORATION, Toky...


1. A diagnostic apparatus for an evaporative fuel processing system, comprising:a fuel tank configured to retain fuel to be fed to an engine equipped with a pressure charger;
a canister configured to communicate with the fuel tank and capable of adsorbing evaporative fuel generated in the fuel tank;
an upstream purge line configured to allow the canister and an intake system of the engine to communicate with each other at an upstream side of the pressure charger;
an upstream purge valve disposed in the upstream purge line and configured to open and close the upstream purge line;
a pressure detector configured to detect pressure in the upstream purge line;
a valve controller configured to open the upstream purge valve when pressure-charging is performed by the pressure charger and to close the upstream purge valve during non-pressure-charging;
a first timekeeper configured to accumulatively measure a time in which a diagnosis execution condition, including an amount of air taken into the engine and an open-close status of the upstream purge valve, is satisfied after the diagnosis execution condition is satisfied and a diagnosis for a purge flow in the upstream purge line is started; and
a determiner configured to determine that the evaporative fuel processing system operates normally if the pressure in the upstream purge line detected by the pressure detector decreases by a predetermined pressure or more from the start of the diagnosis until an accumulative time measured by the first timekeeper reaches a predetermined time, and to determine that the evaporative fuel processing system operates abnormally if the pressure in the upstream purge line does not decrease by the predetermined pressure or more from the start of the diagnosis,
wherein, every time the upstream purge valve is opened after the diagnosis execution condition is satisfied, the first timekeeper accumulatively measures the time in which the diagnosis execution condition is satisfied after a predetermined delay time elapses from when a command for opening the upstream purge valve is output.

US Pat. No. 11,111,882

INJECTION APPARATUS FOR A ROCKET ENGINE

ARIANEGROUP GMBH, Taufki...


1. An injection apparatus for a rocket engine, comprising:an injection plate delimiting a combustion chamber upstream,
a plurality of coaxial injection elements distributed in the injection plate, each coaxial injection element forming an inner outlet opening, delimited by a central sleeve body, for a first propellant component and an outer outlet opening for a second propellant component, wherein the outer outlet opening is formed between the central sleeve body and a wall section which surrounds the central sleeve body in an annular manner,
wherein in a partial number of the coaxial injection elements, the central sleeve body projects from the wall section in a direction towards the combustion chamber,
wherein the central sleeve body comprises a plurality of tangential holes distributed in a peripheral direction, through which the first propellant component enters the central sleeve body,
wherein the injection plate is flat on a plate side that faces the combustion chamber, at least in a region of the coaxial injection elements, in which the wall section is flush with the injection plate, and, in the partial number of the coaxial injection elements, the central sleeve body protrudes from the injection plate on the plate side that faces the combustion chamber, and
wherein in a remaining partial number of the coaxial injection elements, an axial end face of the central sleeve body that faces the combustion chamber is flush with the plate side of the injection plate that faces the combustion chamber, so that the central sleeve body does not protrude relative to the plate side of the injection plate.

US Pat. No. 11,111,881

AIRCRAFT ENGINE ASSEMBLY WITH ISOLATION VALVE OUTSIDE UNCONTAINED ROTOR IMPACT AREA

AIRBUS CANADA LIMITED PAR...


1. An aircraft comprising:a fuselage;
a left wing connected to the fuselage and extending on a left side of the fuselage;
a right wing connected to the fuselage and extending on a right side of the fuselage;
a left engine assembly connected to the left wing; and
a right engine assembly connected to the right wing,
each of the left and right engine assemblies comprising:a nacelle;
an engine housed in the nacelle, the engine having a plurality of rotors, the plurality of rotors defining an uncontained rotor impact area;
a pylon connecting the nacelle to a corresponding one of the left wing and the right wing;
at least one hydraulic actuator connected to at least one of the engine and the nacelle;
at least one directional control valve hydraulically connected to the at least one hydraulic actuator for controlling a direction of motion of the at least one hydraulic actuator;
an aft fairing connected to a rear of the pylon and to a bottom of the corresponding one of the left wing and the right wing; and
at least one isolation valve hydraulically connected to the at least one directional control valve, the at least one isolation valve selectively cutting off a supply of hydraulic fluid to the at least one directional control valve, the at least one isolation valve being disposed under the corresponding one of the left wing and the right wing, rearward of the pylon, inside the aft fairing, rearward of the uncontained rotor impact area and forward of a trailing edge of the corresponding one of the left wing and the right wing.


US Pat. No. 11,111,880

NACELLE OF A TURBOJET ENGINE COMPRISING A THRUST-REVERSING DOOR

AIRBUS OPERATIONS SAS, T...


1. A nacelle for a dual flow turbojet engine, in which two streams of air flow through said nacelle in a direction from a front to a rear of said nacelle, said nacelle comprising:a fixed structure,
a fixed cowl fixedly mounted on the fixed structure and a mobile cowl that is translationally mobile relative to the fixed structure in a direction of translation to switch between a position of closure in which the mobile cowl is close to the fixed cowl and a position of opening in which the mobile cowl is spaced away from the fixed cowl to the rear,
a motor arrangement configured to displace the mobile cowl from the position of closure to the position of opening and vice versa,
a window delimited upstream by the fixed cowl and downstream by the mobile cowl, said window being open between a turbojet of a secondary flow and an outside of the nacelle,
a thrust-reversing door mounted in a rotationally mobile manner to rotate about an axis of rotation and thereby switch between a retracted position in which the thrust-reversing door is positioned inside the mobile cowl and an active position in which the thrust-reversing door comes across the turbojet, and
a driving mechanism provided to coordinate and defer the switch from the retracted position to the active position of the thrust-reversing door with the switch from the position of closure to the position of opening of the mobile cowl and vice versa, said driving mechanism comprising:two connecting rods, wherein each of the connecting rods comprises a proximal end roationally mobilely mounted on the fixed structure about a connecting rod axis parallel to the axis of rotation and a distal end bearing a wheel rotationally mobilely mounted about a wheel axis parallel to the axis of rotation,

wherein for each of the wheels, a groove is integral to the mobile cowl and comprising a rectilinear part and an arched part, the rectilinear part being parallel to the direction of translation and extending behind the arched part, wherein the wheel slides in said groove,a guide integral to the thrust-reversing door, and
a runner being rotationally mobilely mounted between the two connecting rods about a runner axis parallel to the axis of rotation, and also slidingly mounted relative to the guide.


US Pat. No. 11,111,879

THRUST REVERSER PIVOT DOOR WITH EXTENDED FORWARD EDGE

Rohr, Inc., Chula Vista,...


1. A thrust reverser for a nacelle comprising a fan cowl configured to surround a fan case, the thrust reverser comprising:an inner fixed structure;
an outer fixed structure comprising a thrust reverser outer skin;
a bypass duct disposed between the inner fixed structure and the outer fixed structure;
a torque box disposed at a forward end of the thrust reverser;
a support ring disposed forward of the torque box, wherein the support ring is axially spaced apart from the torque box;
a bracket configured to be coupled to the fan case independent of the torque box, wherein the support ring is configured to be supported by the bracket; and
a pivot door mounted on the outer fixed structure for pivotal movement with respect to the outer fixed structure between a stowed and a deployed position, the pivot door comprising:
a support structure; and
a pivot door outer skin coupled to the support structure;
wherein a forward lip of the pivot door outer skin is configured to extend forward of a forwardmost end of the torque box when the thrust reverser pivot door is in a stowed position, and the forward lip is supported by the support ring when the thrust reverser pivot door is in the stowed position.

US Pat. No. 11,111,878

PISTON OF AN INTERNAL-COMBUSTION ENGINE

Mahle International GmbH


1. A piston of an internal-combustion engine, comprising:a piston head and a piston skirt;
a cooling duct circulating in the piston head;
a boss for receiving a piston pin; and
a feed hopper for supplying cooling oil into the cooling duct;
wherein the feed hopper is fastened to another component of the piston via a retaining lug by at least one of a material closure, a force closure, and a positive closure;
wherein the retaining lug is L-shaped with an L-shank extending in a peripheral direction of the piston.

US Pat. No. 11,111,877

PISTON FOR INTERNAL COMBUSTION ENGINE

ART METAL MFG. CO., LTD.,...


1. A piston for an internal combustion engine having a crown portion and a skirt portion projecting downward from the crown portion, the skirt portion having a thrust-side skirt portion and an anti-thrust-side skirt portion with the thrust-side skirt portion being located along a first direction away from a piston pin and the anti-thrust-side skirt portion being located along a second direction, opposite to the first direction, from the piston pin, a solid lubricant resin layer made of a resin containing a solid lubricant is located on each of the thrust-side skirt portion and the anti-thrust-side skirt portion in a predetermined pattern, guide grooves for guiding lubricating oil are formed at a portion of each of the thrust-side skirt portion and the anti-thrust-side skirt portion where no solid lubricant resin layer is formed, comprising:a center portion in a width direction of each of the thrust-side skirt portion and the anti-thrust-side skirt portion is formed with the solid lubricant resin layer having no guide groove,
each guide groove is formed from an end in the width direction of the center portion toward an end in the width direction of the thrust-side-skirt portion or the anti-thrust-side skirt portion,
each guide groove has an open end, nearest the end in the width direction of the thrust-side skirt-portion or the anti-thrust-side skirt portion; and
all the guide grooves of the thrust-side skirt portion having a shape inclined upward from the center portion toward the end in the width direction of the thrust-side skirt-portion, and being provided so as to move the lubricating oil existing in the vicinity of the end in the width direction of the thrust-side skirt-portion into the center portion when the piston moves upward,
all the guide grooves of the anti-thrust-side skirt portion having a shape inclined downward from the center portion toward the end in the width direction of the anti-thrust-side skirt-portion, and being provided so as to move the lubricating oil existing in the vicinity of the end in the width direction of the anti-thrust side skirt-portion into the center portion when the piston moves downward, and
the center portion is formed in a range within ±10° to ±40° with respect to a reference line set as 0° around intersection of the axis of the piston pin and the reference line is set as a center, the reference line being a line orthogonal to an axis of the piston pin and extending in a diametrical direction of the piston.

US Pat. No. 11,111,876

CYLINDER HEAD

TOYOTA JIDOSHA KABUSHIKI ...


3. A cylinder head comprising:an exhaust port through which exhaust gas discharged out of a combustion chamber of an internal combustion engine passes;
a fin including a protrusion projecting from an inner wall of the exhaust port and extending in a flow direction of the exhaust gas passing through the exhaust port;
a projection projecting from the inner wall of the exhaust port and extending in a direction intersecting the fin;
a first fin including the fin; and
a second fin including a protrusion projecting from the inner wall of the exhaust port and extending in the flow direction of the exhaust gas passing through the exhaust port, the second fin being arranged next to the first fin in a circumferential direction of the exhaust port, wherein
the projection is arranged in a gap between the first fin and the second fin.

US Pat. No. 11,111,875

SLIDING STRUCTURE FOR INTERNAL COMBUSTION ENGINE, METHOD FOR CONTROLLING IDLING OPERATION, AND METHOD FOR CONTROLLING OPERATION OF INTERNAL COMBUSTION ENGINE

NIPPON PISTON RING CO., L...


1. A sliding structure for an internal combustion engine having a cylinder and a piston, the sliding structure comprising:the piston having:an oil ring groove having a lower surface;
an oil ring being disposed in the oil ring groove;
a top ring groove having an upper surface, the top ring groove being located closer to a top of the piston than the oil ring groove along a piston stroke direction; and
a top ring being disposed in the top ring groove; and

the cylinder having:an inner wall surface;
a reference stroke region of the inner wall surface, the reference stroke region being from a first position corresponding to the lower surface of the oil ring groove when the piston is at a top dead center to a second position corresponding to the upper surface of the top ring groove when the piston is at a bottom dead center;
a stroke center region of the inner wall surface within the reference stroke region, the stroke center region being located below the first position of the reference stroke region, the stroke center region having a plurality of recesses, the stroke center region having an upper edge and a lower edge opposite to each other, the upper edge being located closer to the first position than the lower edge; and
an upper smooth region of the inner wall surface within the reference stroke region, the upper smooth region being free from any of the plurality of recesses, an entirety of the upper smooth region being located from the first position of the reference stroke region to the upper edge of the stroke center region,

wherein an outer circumferential surface of each of the oil ring and the top ring is in contact with the inner wall surface of the cylinder and has inclined surfaces that are inclined with respect to a direction away from the inner wall surface of the cylinder, a gap between the inner wall surface of the cylinder and the outer circumferential surface is configured to flow a lubricating oil into the gap,
at any RPM equal to or greater than an RPM for an idling operation of the internal combustion engine, a center friction coefficient between the inner wall surface and the outer circumferential surface at a place of the stroke center region through which the oil ring and the top ring pass at a highest speed is set to be less than the center friction coefficient when it is assumed that the plurality of recesses are not formed in the stroke center region,
at any RPM equal to or greater than the RPM for the idling operation of the internal combustion engine, an outside friction coefficient between the inner wall surface and the outer circumferential surface when the oil ring and the top ring pass through any place in an outside region that is outside the stroke center region is set to be less than the outside friction coefficient when it is assumed that the plurality of recesses are formed in the outside region, and
a distance along the piston stroke direction of the upper smooth region is 30% or greater of a distance along the piston stroke direction of the reference stroke region.

US Pat. No. 11,111,874

CYLINDER HOUSING FOR A RECIPROCATING-PISTON INTERNAL COMBUSTION ENGINE

Daimler AG, Stuttgart (D...


1. A cylinder housing of a reciprocating internal combustion engine, comprising:a first cylinder delimited by a first cylinder barrel; and
a second cylinder delimited by a second cylinder barrel;
wherein the first cylinder has a first internal contour formed by the first cylinder barrel and the second cylinder has a second internal contour formed by the second cylinder barrel;
wherein the first internal contour is configured to differ from the second internal contour in a cold state of the reciprocating internal combustion engine such that a shape of the first internal contour and a shape of the second internal contour differ from each other and differ from a desired target shape in terms of a respective diameter and/or a respective honing shape of the respective cylinder barrels in the cold state of the reciprocating internal combustion engine, and such that in a fired operation of the reciprocating internal combustion engine the shape of the first internal contour and the shape of the second internal contour correspond to the desired target shape.

US Pat. No. 11,111,873

METHOD AND CONTROL UNIT FOR REGULATING A FILL LEVEL OF A STORAGE OF A CATALYTIC CONVERTER FOR AN EXHAUST GAS COMPONENT

Robert Bosch GmbH, Stutt...


1. A method for regulating a filling of an exhaust gas component storage of a catalytic converter in an exhaust gas of an internal combustion engine, comprising:ascertaining an actual fill level of the exhaust gas component storage using a first system model;
feeding to the first system model a signal of a first exhaust gas sensor projecting into an exhaust gas flow upstream from the catalytic converter and detecting a concentration of the exhaust gas component;
predefining in the first system model a base lambda setpoint value for a first control loop, the predefining being performed by a second control loop;
converting, in the second control loop, an initial value for the base lambda setpoint value into a fictitious fill level by a second system model identical to the first system model;
comparing the fictitious fill level with a setpoint value for a fill level, the comparing producing a comparison result; and
iteratively changing the base lambda setpoint value as a function of the comparison result, if the comparison result indicates a difference between the setpoint value for the fill level and the fictitious fill level that is greater than a predefined degree, wherein the base lambda setpoint value is not changed if the comparison result indicates no difference between the setpoint value for the fill level and the fictitious fill level.

US Pat. No. 11,111,872

SYSTEM AND METHOD FOR CONTROL OF VOLUMETRIC EFFICIENCY IN A DIRECT INJECTION ENGINE

Cummins Inc., Columbus, ...


1. A method of operating an internal combustion engine having an intake manifold fluidly coupled to multiple cylinders including a first cylinder and a second cylinder, the method comprising:determining that an imbalance exists between the first cylinder and the second cylinder; and
performing a cylinder-by-cylinder volumetric efficiency adjustment to reduce the imbalance by adjusting a volumetric efficiency experienced by the first cylinder independently of a volumetric efficiency experienced by the second cylinder.

US Pat. No. 11,111,871

CONTROL APPARATUS FOR COMPRESSION-IGNITION TYPE ENGINE

Mazda Motor Corporation, ...


1. An apparatus for controlling a compression-ignition type engine that includes: a cylinder; an injector that injects fuel into the cylinder; and an ignition plug that ignites air-fuel mixture, in which the fuel injected by the injector and air are mixed, and that can carry out partial compression ignition combustion to subject some of the air-fuel mixture to SI combustion by spark ignition using the ignition plug, and subject the rest of the air-fuel mixture to CI combustion by self-ignition, the control apparatus for the compression-ignition type engine comprising:an in-cylinder temperature specification section that specifies an in-cylinder temperature as a temperature in the cylinder;
an injection control section that controls fuel injection operation by the injector; and
an ignition control section that controls ignition operation by the ignition plug,
wherein, when the partial compression ignition combustion is carried out, the ignition control section causes the ignition plug to carry out: main ignition in which a spark is generated in a late period of a compression stroke or an initial period of an expansion stroke to initiate the SI combustion; and preceding ignition in which the spark is generated at earlier timing than the main ignition,
wherein, when the partial compression ignition combustion is carried out, the injection control section causes the injector to inject the fuel at such timing that the fuel exists in the cylinder at an earlier time point than the preceding ignition, and
wherein timing of the preceding ignition is set to be more advanced when the in-cylinder temperature specified by the in-cylinder temperature specification section is high than when the in-cylinder temperature is low.

US Pat. No. 11,111,870

METHOD AND SYSTEM FOR DETERMINING ABNORMALITY OF DIFFERENTIAL PRESSURE SENSOR

Mazda Motor Corporation, ...


1. A method of determining an abnormality of a differential pressure sensor configured to detect a pressure differential between an upstream side and a downstream side of an exhaust gas recirculation (EGR) valve provided to an EGR passage of an engine, the method comprising the steps of:controlling an opening of the EGR valve based on an output value of the differential pressure sensor;
determining the abnormality of the differential pressure sensor based on the output value of the differential pressure sensor;
controlling at least a throttle valve of the engine toward a closed side so that the pressure differential between the upstream side and the downstream side of the EGR valve is maintained at greater than or equal to a given pressure when determining the abnormality of the differential pressure sensor; and
prohibiting the execution of the abnormality determination of the differential pressure sensor when an engine speed of the engine is greater than or equal to a given engine speed, and permitting the execution of the abnormality determination of the differential pressure sensor when the engine speed is less than the given engine speed.

US Pat. No. 11,111,869

STATE DETECTION SYSTEM FOR INTERNAL COMBUSTION ENGINE, DATA ANALYSIS DEVICE, AND HYBRID VEHICLE

TOYOTA JIDOSHA KABUSHIKI ...


1. A state detection system for an internal combustion engine, the state detection system being applied to the internal combustion engine including a crankshaft that is mechanically coupled with a motor-generator, the state detection system being configured to detect a predetermined operating state of the internal combustion engine, the predetermined operating state involving a variation in a combustion state between cylinders, the state detection system comprising:a memory configured to store mapping data, the mapping data being data that defines a detection mapping, the detection mapping being a mapping between an input and an output, the input being a first waveform variable and a second waveform variable and the output being a value of a combustion state variable, and the detection mapping including a joint operation of the first waveform variable and the second waveform variable based on a parameter learned by machine learning, the first waveform variable being a variable including information on a difference in rotation speed of the crankshaft between the cylinders during a period when combustion torque is generated in each of the cylinders, the second waveform variable being a variable indicating time series data of a state quantity indicating a drive state of the motor-generator, the combustion state variable being a variable relating to a degree of variation in the combustion state between the cylinders; and
a processor configured to execute an acquisition process and a determination process, the acquisition process being a process of acquiring values of the first waveform variable and the second waveform variable, the value of the first waveform variable being acquired based on an output of a sensor that detects a rotation behavior of the crankshaft, the determination process being configured to determine whether or not the internal combustion engine is in the predetermined operating state, based on an output value of the detection mapping that takes the values of the first waveform variable and the second waveform variable acquired in the acquisition process as an input.

US Pat. No. 11,111,868

METHOD OF EXHAUST GAS MANAGEMENT IN INTERNAL COMBUSTION ENGINES, CORRESPONDING SYSTEM, ENGINE, VEHICLE AND COMPUTER PROGRAM PRODUCT

STMICROELECTRONICS S.r.l....


1. A method, including:sensing a sensing signal indicative of an operating condition of an internal combustion engine
producing, as a function of the sensing signal sensed, an exhaust gas recirculation control signal for controlling an amount of exhaust gas recirculated to the internal combustion engine
producing a particulate size distribution signal indicative of a particulate size distribution in the exhaust gas of the internal combustion engine based on the operating condition of the internal combustion engine and the amount of exhaust gas recirculated to the internal combustion engine
producing a corrected exhaust gas recirculation control signal based on the particulate size distribution signal and
controlling the particulate size distribution in the exhaust gas by adjusting the amount of exhaust gas recirculated to the internal combustion engine based on the corrected exhaust gas recirculation control signal.

US Pat. No. 11,111,867

SYSTEMS AND METHODS FOR AN EVAPORATIVE EMISSIONS CONTROL SYSTEM

Ford Global Technologies,...


1. A method for an engine in a vehicle, comprising:during a vehicle off condition, in response to an estimated cooling of fuel in a fuel tank, opening a refueling valve (RV) to unseal the fuel tank, the estimated cooling of the fuel based on output of a first solar cell.

US Pat. No. 11,111,866

ENGINE DEVICE

YANMAR POWER TECHNOLOGY C...


1. A ship comprising:an engine; and
an engine control unit (ECU) configured to:based on the ship being outside a reduced emissions area, perform an engine switching operation to switch operation of the engine from a gas mode to a diesel mode; and
based on the ship being within the reduced emissions area, prohibit the engine switching operation.


US Pat. No. 11,111,865

COMPRESSION IGNITION ENGINE WITH SUPERCHARGER

Mazda Motor Corporation, ...


1. A compression ignition engine with a supercharger, comprising:an engine body having a cylinder where a combustion chamber is formed;
the supercharger, configured to boost intake air to the combustion chamber of the engine body;
one or more valves configured to switch a state between a first state in which the intake air is boosted by the supercharger and a second state in which the intake air is not boosted by the supercharger;
a fluid temperature adjuster comprising a grille shutter provided in front of a radiator and configured to adjust a temperature of engine coolant configured to be supplied to the radiator from the engine body to cool the engine body, the grille shutter comprising a plurality of flappers which rotate on respective axes extending in a vehicle width direction; and
a controller comprised of circuitry, configured to control operation of the engine body including operations of the one or more valves and the fluid temperature adjuster,
wherein when the controller determines that an operating state of the engine body is in a high-load operating range where an engine load is more than a given load, the controller controls a combustion mode of the engine body to be in a compression ignition combustion mode in which an unburnt mixture gas is self-ignited during flame propagation combustion of a mixture gas caused by jump-spark ignition inside the combustion chamber,
wherein when the controller determines that the operating state of the engine body is in the high-load operating range, causing the one or more valves to be in the first state, while when the operating state of the engine body is in a low-load operating range in which the load is lower than the given load, causing the one or more valves to be in the second state,
wherein when the controller determines that the operating state of the engine body is in the high-load operating range, the controller outputs a control signal to the grille shutter so that an opening of the grille shutter becomes larger, compared with the opening of the grille shutter when the operating state of the engine body is in the low-load operating range,
wherein the fluid temperature adjuster comprises the grille shutter and a radiator fan configured to adjust an amount of air passing through the radiator, the radiator fan provided rearward of the radiator,
wherein when the operating state of the engine body is in the high-load operating range, the controller increases a rotational speed of the radiator fan, compared with the rotational speed of the radiator fan when the operating state of the engine body is in the low-load operating range, and
wherein the controller controls the grille shutter and the radiator fan such that:a detection result of a fluid temperature sensor becomes a first fluid temperature when the operating state of the engine body is in a low-speed operating range and in the low-load operating range, and
the opening of the grille shutter is fully closed and the rotational speed of the radiator fan is set to zero when the detection result of the fluid temperature sensor is below the first fluid temperature.


US Pat. No. 11,111,864

INTAKE OXYGEN CONCENTRATION CONTROL SYSTEM SUITABLE FOR ENGINE WITH LEAN NOX TRAPPING TECHNOLOGY

Tianjin University, Tian...


1. An intake oxygen concentration control system suitable for an engine with lean NOx trapping technology, comprising: an exhaust turbocharging system, an intake system, a lean NOx trapping post-treatment system, and a control system; wherein,the exhaust turbocharging system comprises a turbine, and a revolving shaft of the turbine is fixedly connected with a revolving shaft of a compressor coaxially;
the intake system comprises an air filter installed on an intake pipe, wherein, an inlet of the air filter communicates with the atmosphere, an intake pipe at an exhaust side of the air filter communicates with a gas inlet of the compressor, and a gas outlet of the compressor communicates with inlets of three branches; an outlet of a first branch is connected to a gas inlet of an oxygen-enriched membrane, and after air passes through the oxygen-enriched membrane, oxygen-rich and oxygen-deficient gases are generated; an oxygen-rich gas outlet of the oxygen-enriched membrane communicates with an oxygen-rich gas mixing chamber via an oxygen-rich gas branch, and an outlet of the oxygen-rich gas mixing chamber is connected to four cylinders via intake manifolds; a mixed gas flow control valve is disposed on an intake manifold communicating with a first cylinder on the left;
an oxygen-deficient gas outlet of the oxygen-enriched membrane is connected, via an oxygen-deficient gas branch, successively to an inlet of an oxygen-deficient gas exhaust pipe, an oxygen-deficient gas mixing chamber, and an intake manifold located at an outlet of the mixed gas flow control valve and communicating with the first cylinder on the left; an oxygen-deficient gas flow control valve is installed on the oxygen-deficient gas exhaust pipe;
a second branch is connected, along an air flow direction, successively to a first air flow control valve and an oxygen-deficient branch located between an gas inlet of the oxygen-deficient gas exhaust pipe and the oxygen-deficient gas mixing chamber; the air circulating in the second branch is mixed with the oxygen-deficient gas in the oxygen-deficient gas mixing chamber; a third branch is connected, along the air flow direction, successively to a gas inlet of an air exhaust pipe and the oxygen-rich gas branch located between the oxygen-rich gas mixing chamber and the oxygen-rich gas outlet of the oxygen-enriched membrane; a second air flow control valve is installed on the air exhaust pipe; and the air circulating in the third branch is mixed with the oxygen-rich gas in the oxygen-rich gas mixing chamber;
the lean NOx trapping post-treatment system comprises an oxygen sensor and a lean NOx trapping device that are successively arranged on an engine exhaust pipe along a cylinder exhaust direction; and a gas inlet of the turbine communicates with an engine exhaust pipe, and a gas exhaust of the turbine communicates with the NOx trapping device; and
the control system comprises an electronic control unit (ECU) that is connected to the engine, the first air flow control valve, the second air flow control valve, the oxygen-deficient gas flow control valve, the mixed gas flow control valve, and the oxygen sensor via control lines, separately; and the ECU generates opening signals for each flow control valve according to the engine operating condition signals and oxygen concentration signals from the oxygen sensor.

US Pat. No. 11,111,863

AUTOMATIC FUEL ECONOMIZER FOR INTERNAL COMBUSTION ENGINE


1. A fuel economizer for an internal combustion engine, comprising:a computer assembly, a battery, an operation setting system, a lead sensing fan, and an air intake fan motor;
wherein:
the computer assembly includes an IC (integrated circuit) board;
the IC board of the computer assembly is electrically connected with the battery, the operation setting system, the lead sensing fan, and the air intake fan motor;
the battery provides an electric power to the air intake fan motor;
the operation setting system includes an operation setting monitor;
the operation setting monitor of the operation setting system presets a plurality of grades according to a rotation speed of the lead sensing fan and an air flow rate of the air intake fan motor;
the rotation speed of the lead sensing fan is proportion to a speed of a traffic vehicle;
the operation setting system is provided with a manual/auto switching button, an increase button, and a decrease button;
the operation setting system presets that a rotation speed of the air intake fan motor increases the air flow rate of the air intake fan motor by a grade when the speed of the traffic vehicle is increased by a predetermined value;
the air intake fan motor is connected to an air inlet port of the internal combustion engine;
the air intake fan motor drives and rotates an air intake fan, to control an air flow rate of the air inlet port of the internal combustion engine;
the lead sensing fan is mounted on a front position of the traffic vehicle;
the lead sensing fan includes an IC (integrated circuit) chip;
the IC chip of the lead sensing fan is electrically connected with the IC board of the computer assembly;
the lead sensing fan is rotated during movement of the traffic vehicle; and
when the rotation speed of the lead sensing fan reaches a preset value, the IC chip of the lead sensing fan transmits a signal to the computer assembly, and the computer assembly regulates the rotation speed of the air intake fan motor according to a speed grade preset by the operation setting system so as to control the air flow rate of the air inlet port of the internal combustion engine.

US Pat. No. 11,111,862

METHODS AND SYSTEMS FOR AN ENGINE WITH PARTIAL DEACTIVATION

Ford Global Technologies,...


6. A system comprising:an engine comprising a plurality of cylinders including a first cylinder, a second cylinder, a third cylinder, and a fourth cylinder, the first and fourth cylinders respectively arranged outside of the second and third cylinders, the plurality of cylinders further comprising a first cylinder group comprising the first and fourth cylinders and a second cylinder group comprising the second and third cylinders, where the first cylinder group comprises a first compression ratio and the second cylinder group comprises a second compression ratio greater than the first compression ratio; wherein
the first cylinder group comprises fuel injectors positioned to inject fuel into an intake passage coupled to the first and fourth cylinders, and the second cylinder group comprises fuel injectors positioned to inject fuel directly into the second and third cylinders; and
a controller with computer-readable instructions stored on non-transitory memory that when executed enable the controller to:
activate only the first cylinder group and deactivate all cylinders of the second cylinder group in response to an engine load being less than or equal to a first threshold during a first mode;
activate each of the first and second cylinder groups in response to the engine load being greater than a second threshold during a second mode, wherein the second mode further comprises flowing compressed gas from the first cylinder group, through flow transfer ducts, and to the second cylinder group; and
activate only the second cylinder group and deactivate all cylinders of the first cylinder group in response to the engine load being greater than the first threshold and less than or equal to the second threshold during a third mode.

US Pat. No. 11,111,861

ENGINE SPEED CONTROL SYSTEM


1. An engine comprising:a fuel tank;
a carburetor including a throttle valve movable between a first throttle position and a second throttle position;
a governor system configured to move the throttle valve; and
a speed control system includinga control lever movable between a first position and a second position, and defining a control lever coupling structure that defines a first actuation distance, and
a bellcrank movable between an idle position and a high speed position, and defining a first bellcrank coupling structure and a second bellcrank coupling structure that defines a second actuation distance that is different than the first actuation distance, the bellcrank coupled to the governor system,

wherein the speed control system is structured to be controlled by a remote actuator configured to engage one of the control lever coupling structure, the first bellcrank coupling structure, or the second bellcrank coupling structure to move the control lever and the bellcrank, and
wherein the engine is structured to support the remote actuator to provide control from a first lever direction when the remote actuator engages the control lever coupling structure, a second lever direction opposed to the first lever direction when the remote actuator engages the control lever coupling structure, a first bellcrank direction when the remote actuator engages the first bellcrank coupling structure, a second bellcrank direction opposed to the first bellcrank direction when the remote actuator engages the first bellcrank coupling structure, and a third bellcrank direction different than the first bellcrank direction and the second bellcrank direction when the remote actuator engages the second bellcrank coupling structure.

US Pat. No. 11,111,860

WORK VEHICLE

Kubota Corporation, Osak...


1. A work vehicle comprising:an engine in which an amount of intake air to be supplied thereto is adjusted by opening and closing of a throttle valve;
an operation tool which is swingably supported by the vehicle body and through which opening and closing of the throttle valve is operated in accordance with a swing angle of the operation tool;
a cable connected to the throttle valve;
a cam which is supported by the operation tool and swingable about a first shaft supported by the vehicle body in accordance with an operation amount of the operation tool;
a curved face which is an outer face of the cam and includes an end part region and a remaining region, the end part region having a curvature smaller than a curvature of the remaining region, and
a link member which is connected to the cable, brought into contact with the curved face of the cam, and swingable along the curved face about a second shaft supported by the vehicle body in accordance with swing of the cam,
wherein the cable is pulled in accordance with a swing amount of the link member, opening and closing of the throttle valve is adjusted in accordance with a pulled amount of the cable, and as a swing amount of the operation tool becomes larger, the link member swings farther along the curved face in a direction from the end part region to the remaining region.

US Pat. No. 11,111,859

METHOD AND CONTROL SYSTEM FOR CONTROLLING COMPRESSOR OUTPUT OF A GAS TURBINE ENGINE

Solar Turbines Incorporat...


1. A method for controlling a gas producer shaft speed of a two-shaft gas turbine engine having a combustion chamber, a gas producer shaft, a turbine, and a power transfer device, the method comprising:determining the gas producer shaft speed and a temperature of the turbine;
in response to the gas producer shaft speed being below a gas producer shaft speed threshold and the temperature of the turbine being within a predetermined range of a turbine temperature threshold, increasing an amount of fuel to be combusted within the combustion chamber and applying additional power to the gas producer shaft with the power transfer device; and
in response to the gas producer shaft speed being within a predetermined range of the gas producer shaft speed threshold and the turbine temperature being below the turbine temperature threshold, increasing the amount of fuel to be combusted within the combustion chamber and removing power from the gas producer shaft with the power transfer device.

US Pat. No. 11,111,858

COOL CORE GAS TURBINE ENGINE

General Electric Company,...


1. A gas turbine engine comprising:a compressor section defining a compressor exit temperature, T3;
a combustion section located downstream of the compressor section; and
a turbine section located downstream of the combustion section and defining a turbine inlet temperature, T4, wherein a ratio, T4:T3, of the turbine inlet temperature, T4, to compressor exit temperature, T3, during operation of the gas turbine engine at a rated speed is less than or equal to 1.85;
wherein the compressor section, combustion section, and turbine section together define a core air flowpath, wherein the turbine section comprises a first turbine located immediately downstream from the combustion section, wherein the first turbine comprises a plurality of first stage turbine rotor blades, wherein each of the first stage turbine rotor blades extend from a root to a tip and are formed of a wall, wherein the wall of each first stage turbine rotor blade is exposed to the core air flowpath within the turbine section and is configured as a continuous, non-permeable wall to prevent an airflow therethrough such that the first stage turbine rotor blade is an uncooled component.

US Pat. No. 11,111,857

HOURGLASS AIRFOIL COOLING CONFIGURATION

RAYTHEON TECHNOLOGIES COR...


1. An airfoil, comprising:pressure and suction side walls extending in a chord-wise direction between leading and trailing edges, the pressure and suction side walls also extending in a radial direction to provide an exterior airfoil surface; and
a first cooling passage, a second cooling passage, and a third cooling passage arranged between the pressure and suction walls, the first and third cooling passages arranged on either side of the second cooling passage, the first and third cooling passages each having a first width in the chord-wise direction near the suction side wall, a second width in the chord-wise direction near the pressure side wall, and a third width between the pressure and suction side walls, the third width being smaller than the first and second widths, and wherein the second cooling passage has a kite shape.

US Pat. No. 11,111,856

TURBOFAN ENGINE AND CORE LINK THEREFORE


10. A core link providing structural support structure within a bypass flow path of a gas turbine, comprisinga structural body witha front structural member,
a rear structural member
a length extending between a bypass duct and a core engine of the gas turbine,
a depth extending axially relative to an axis of the bypass flow path,
a thickness normal to the depth and normal to the length, and
a heat-exchange aperture defined across the thickness and located between the front and rear structural members,

a conduit within the structural body,
a fluid passage defined by the conduit and havinga heat exchange portion being configured for heat exchange with the bypass flow path,
a portion of the conduit exposed to the bypass flow path,
an inlet leading into the structural body and to the heat exchange portion, and
an outlet extending from the heat exchange portion and out of the structural body, whereinthe portion of the conduit extends inside the heat exchange aperture.



US Pat. No. 11,111,855

INLET PARTICLE SEPARATOR

Rolls-Royce North America...


1. A gas turbine engine comprisingan engine core including a compressor, a combustor, and a turbine,
a propulsion unit powered by the engine core, the propulsion unit including a drive shaft coupled with the engine core and configured to be driven to rotate about an axis by the turbine when the gas turbine engine is in a first operational mode and a bladed rotor coupled with the engine core and configured to be driven to rotate about the axis by the turbine when the gas turbine engine is in a second operational mode, and
an inlet particle separator configured to receive a flow of fluid and to move between a first arrangement in response to the gas turbine engine being in the first operational mode and a second arrangement in response to the gas turbine engine being in the second operational mode,
wherein the inlet particle separator separates the flow of fluid into engine core air and scavenge air and directs the engine core air toward the compressor of the engine core and directs the scavenge air around the engine core when the inlet particle separator is in the first arrangement and wherein the inlet particle separator does not separate the flow of fluid and directs the flow of fluid toward the compressor of the engine core when the inlet particle separator is in the second arrangement,
further comprising a bypass duct arranged around the bladed rotor and the engine core to define a bypass channel and configured to conduct bypass air around the engine core and the inlet particle separator directs the scavenge air into the bypass channel and around the engine core when the inlet particle separator is in the first arrangement.

US Pat. No. 11,111,854

TURBOCHARGER HAVING A MERIDIONALLY DIVIDED TURBINE HOUSING AND A VARIABLE TURBINE NOZZLE

Garrett Transportation 1 ...


1. A turbocharger having a meridionally divided variable-nozzle turbine, comprising:a turbine comprising a turbine housing and a turbine wheel mounted in the turbine housing and connected to a rotatable shaft for rotation therewith, the turbine housing defining a meridionally divided scroll extending circumferentially and surrounding the turbine wheel, the meridionally divided scroll defining a first scroll extending substantially fully about the turbine wheel and a separate second scroll extending substantially fully about the turbine wheel;
the turbine housing defining a separate inlet for each of the first and second scrolls through which separate first and second exhaust gas streams are received;
a nozzle leading from the meridionally divided scroll generally radially inwardly to the turbine wheel;
a compressor comprising a compressor housing and a compressor wheel mounted in the compressor housing and connected to the rotatable shaft for rotation therewith;
a center housing connected between the compressor housing and the turbine housing and containing bearings for the shaft;
a generally annular nozzle ring having a first face that comprises one wall of the nozzle and that is axially spaced from an opposite wall of the nozzle;
a shroud plate mounted within the nozzle, the shroud plate meridionally dividing the nozzle into a first nozzle and a second nozzle, the first nozzle receiving the first exhaust gas stream from the first scroll, the second nozzle receiving the second exhaust gas stream from the second scroll; and
a plurality of circumferentially spaced first vanes disposed in the first nozzle and a plurality of circumferentially spaced second vanes disposed in the second nozzle, the first and second vanes being rotatably mounted to the nozzle ring so as to be variable in setting angle for regulating exhaust gas flow to the turbine wheel.

US Pat. No. 11,111,853

METHOD FOR EXHAUST WASTE ENERGY RECOVERY AT THE INTERNAL COMBUSTION ENGINE POLYGENERATION PLANT


1. A method for an exhaust waste energy recovery at an internal combustion engine (ICE) polygeneration plant, comprising in combination:supplying said polygeneration plant with a methaneous gas (MG) at a rate exceeding an amount of a fuel required for the ICE operation;
processing all the supplied MG to meet the parameters and quality standards specific by its following liquefaction;
selecting a type of the ICE for installation at the polygeneration plant from a group comprising a twin-shaft gas turbine and a lean burn supercharged reciprocating gas engine;
supplying the polygeneration plant with an atmospheric air which is at least partially used as a combustion air in a selected ICE;
pressurizing the combustion air with use of at least one compression means so providing a high pressure (HP) combustion air required for operation of the selected ICE;
burning a mixture of said fuel with the HP combustion air and following expanding a formed combustion gas down to a low-pressure (LP) in said selected ICE, resulting in producing a first part of a gross power output of said polygeneration plant and releasing a low-pressure (LP) exhaust gases stream comprising a mixture of nitrogen, oxygen, carbon dioxide and water vapor at a high temperature;
recovering an exhaust waste energy through producing the remainder of the gross power output of said polygeneration plant, converting the LP exhaust gases stream into a useful refrigerant and using said refrigerant for producing a liquefied MG (LMG) co-product from a major part of a processed MG;
harnessing a minor non-liquefied part of the processed MG as the fuel for the selected ICE;
providing a net power output of the polygeneration plant at a level which is equal to or above a power output of the selected ICE operated in a simple cycle mode; and
providing a power output of the polygeneration plant re-counted with consideration of a power equivalent of the LMG co-product at a level which is above a power output of the selected ICE operated in a conventional combined cycle mode.

US Pat. No. 11,111,852

ROTARY ENGINE, APPARATUS INCLUDING THE SAME, AND METHODS OF MAKING AND USING THE SAME


1. An engine, comprising:a) a housing enclosing a manifold and having (i) an outer circumference and (ii) an inlet configured to receive an oxygen-containing gas, the manifold being in fluid communication with the inlet;
b) a first axle or shaft to which the housing is joined or fixed;
c) a plurality of conduits or passages within and/or extending from the housing and to which the housing is joined or fixed, the plurality of conduits or passages receiving the oxygen-containing gas from the manifold;
d) a plurality of combustion chambers at distal ends of the plurality of conduits or passages and external to the housing, wherein the plurality of combustion chambers are configured to receive the oxygen-containing gas from the plurality of conduits or passages and burn a fuel to heat at least some of the oxygen-containing gas;
e) a plurality of nozzles at distal ends of the plurality of combustion chambers, configured to (i) receive the heated oxygen-containing gas and combustion gases from the plurality of combustion chambers and (ii) direct the heated oxygen-containing gas and combustion gases exiting the plurality of nozzles in a predetermined direction;
f) a second axle or shaft colinear with the first axle or shaft;
g) a compressor in the manifold or upstream from the inlet, comprising a plurality of fins or blades joined or fixed to the second axle or shaft, wherein the compressor is configured to increase a pressure of the oxygen-containing gas at entrances of the plurality of conduits or passages; and
h) a differential between the first axle or shaft and the second axle or shaft, wherein the first and second axles or shafts rotate at different rates.

US Pat. No. 11,111,851

COMBUSTION ENGINE COMPONENTS WITH DYNAMIC THERMAL INSULATION COATING AND METHOD OF MAKING AND USING SUCH A COATING

Tenneco Inc., Lake Fores...


1. A component for exposure to a combustion chamber of an internal combustion engine and/or exhaust gas generated by the internal combustion engine, comprising:a body portion formed of metal;
a thermal barrier coating applied to said body portion;
said thermal barrier coating including a bond layer formed of metal disposed on said body portion, the metal of the bond layer including at least one of chromium, nickel, cobalt, chromium alloy, nickel alloy, cobalt alloy, nickel based superalloy, and cobalt based superalloy;
said thermal barrier coating including a mixed layer disposed on said bond layer;
said bond layer having a thickness of 20 to 100 microns;
said mixed layer having a thickness of 20 to 100 microns;
said mixed layer being formed of a mixture of ceramic and the metal of the bond layer; and
said ceramic of said mixed layer including at least one of ceria, ceria stabilized zirconia, yttria, yttria stabilized zirconia, calcia stabilized zirconia, magnesia stabilized zirconia, and zirconia stabilized by another oxide.

US Pat. No. 11,111,850

ROTATIONAL DRIVE UNIT FOR A FAN


1. A rotational drive unit comprising:an input rotatable about a first axis of rotation, the input configured to be driven by a power source in a single rotational direction;
a first shaft in operable communication with the input and configured to rotate in a first direction;
a second shaft in operable communication with the input and configured to rotate in a second direction opposite the first direction;
an output rotatable about a second axis of rotation;
a clutch assembly in operable communication with the first shaft, the second shaft, and the output, wherein the clutch assembly is operable in a first configuration in which force is transmitted between the first shaft and the output, and a second configuration in which force is transmitted between the second shaft and the output; and
wherein the output rotates in the first direction during the first configuration, and wherein the output rotates in the second direction during the second configuration.

US Pat. No. 11,111,849

MARINE PROPULSION DEVICE AND LOWER UNIT THEREFOR

Brunswick Corporation, M...


1. A lower unit for a marine propulsion device, the lower unit comprising:a gearcase housing defined along a longitudinal center axis between a fore end and an aft end;
a propulsor shaft extending through the gearcase housing along the longitudinal center axis;
a driveshaft extending non-parallel to the propulsor shaft, the driveshaft being configured to rotate in a direction of rotation when powered, and the driveshaft being coupled in torque-transmitting relationship with the propulsor shaft; and
a skeg projecting from a bottom surface of the gearcase housing proximate at least the aft end thereof;
wherein one of the skeg and the gearcase housing is cambered such that a moment acting in a direction opposite the driveshaft's direction of rotation is induced on the one of the skeg and the gearcase housing as the lower unit moves through water.

US Pat. No. 11,111,848

FUEL INJECTION SYSTEM FOR AIRCRAFT ENGINE


1. A fuel injection system for an aircraft engine having at least one combustion chamber of varying volume, comprising:a first fuel injector having a first actuation inlet, a first fuel inlet hydraulically connected to a fuel source, and a first fuel outlet hydraulically connected to the at least one combustion chamber, the first fuel injector defining a first pressure ratio defined as a first outlet pressure at the first fuel outlet to a first inlet pressure at the first fuel inlet;
a second fuel injector having a second actuation inlet, a second fuel inlet hydraulically connected to the fuel source, and a second fuel outlet hydraulically connected to the at least one combustion chamber, the second fuel injector defining a second pressure ratio defined as a second outlet pressure at the second fuel outlet to a second inlet pressure at the second fuel inlet; and
an actuation fluid system having a circuit hydraulically connected to the first actuation inlet and to the second actuation inlet,
wherein the first fuel injector and the second fuel injector are structurally configured such that the first pressure ratio is different than the second pressure ratio and the first outlet pressure is different than the second outlet pressure, and/or the actuation fluid system includes a first pressure regulating valve hydraulically connected to the first actuation inlet and a second pressure regulating valve hydraulically connected to the second actuation inlet and configured to regulate a first actuation pressure from the actuation fluid system to be different than a second actuation pressure from the actuation fluid system such that the first outlet pressure is different than the second outlet pressure.

US Pat. No. 11,111,847

METHOD AND SYSTEM OF CARBON SEQUESTRATION AND CARBON NEGATIVE POWER SYSTEM

Enhanced Energy Group, LL...


1. A semi-closed cycle carbon negative power system comprising:an engine subsystem;semi-closed-cycle (SCC) oxygen plant subsystem connectable to the engine subsystem;
an intake subsystem connectable to the SCC oxygen plant subsystem; and
a gas cleanup system (GCS) connectable to the SCC oxygen plant subsystems,
a pyrolysis subsystem connectable to the engine subsystem;
a waste-heat-to-power subsystem connectable to the pyrolysis subsystem;
an exhaust water separator subsystem connectable to the waste-heat-to-power subsystem;
an inlet hopper;

a pyrolysis reaction chamber, the pyrolysis reaction chamber comprising:a pipe;
a heating jacket surrounding the pipe;
a separator vessel, wherein the separator vessel provides a liquid/tar product, a gaseous product, and a char product;
a screw concentric the pipe for moving material through the pipe to the separator vessel; and

a burner connectable to the heating jacket, and wherein the separator vessel is connectable to the burner and wherein the burner is designed to use liquid pyrolysis products.

US Pat. No. 11,111,846

LUBE OIL CONTROLLED IGNITION ENGINE COMBUSTION

Prometheus Applied Techno...


1. An internal combustion engine comprising an adaptive intake valve closing timing control system wherein an intake valve closing timing is selected based on one or more of a lubrication oil autoignition temperature, a fuel methane number, an engine oil consumption rate, an engine compression ratio and an engine air-fuel mixture to cause consistent autoignition of a lubrication oil mist present in the engine combustion chamber.

US Pat. No. 11,111,844

METHOD FOR OPERATING A COMBUSTION ENGINE SYSTEM


1. A method for operating a combustion engine system, comprising:generating exhaust gas via a combustion engine when in operation,
feeding fresh air via a fresh air system to the combustion engine and dissipating exhaust gas via an exhaust gas system from the combustion engine,
operating an exhaust gas turbocharger that comprises a compressor wheel incorporated in the fresh air system for compressing the fresh air and a turbine wheel incorporated in the exhaust gas system for driving the compressor wheel,
providing an adjustable waste gate valve of the exhaust gas turbocharger, structured and arranged in a bypass position to guide exhaust gas via a bypass channel past the turbine wheel,
providing a pollutant conversion system incorporated in the exhaust gas system for reducing pollutants in the exhaust gas, the pollutant conversion system configured such that it has a threshold temperature above which pollutants are reduced,
providing a variable turbine geometry of the exhaust gas turbocharger comprising adjustable guide elements surrounding the turbine wheel in a circumferential direction, the guide elements following one another in the circumferential direction and define an overall cross-section in their respective position for the exhaust gas to flow through,
adjusting the guide elements in a control mode, where the pollutant conversion system comprises a temperature above the threshold temperature, such that the overall cross-section is between a control minimum value and a control maximum value, and
operating in a heat-up mode at temperatures of the pollutant conversion system below the threshold temperature where the guide elements are moved into a heat-up position, in which the overall cross-section is smaller than the control minimum value, wherein during a change-over from the heat up mode to the control mode, adjusting the variable turbine geometry into an idling position where the guide elements expose a gap to reduce exhaust gas counter-pressure.

US Pat. No. 11,111,843

ADJUSTABLE TRIM SYSTEM FOR A TURBOCHARGER COMPRESSOR INCLUDING A PORTED SHROUD

GM Global Technology Oper...


1. A vehicle propulsion system comprising:an internal combustion engine having an exhaust system and an intake system;
a turbine housing and a turbine wheel mounted in the turbine housing and connected to a rotatable shaft, the turbine housing in communication with the exhaust system for receiving exhaust gas and supplying the exhaust gas to the turbine wheel;
a compressor housing and a compressor wheel mounted in the compressor housing and connected to the rotatable shaft, the compressor housing having an air inlet wall defining an air inlet for leading air generally axially into the compressor wheel, the compressor housing further defining a ported shroud system defining a shroud inner wall and a shroud outer wall, wherein the shroud outer wall is spaced radially outward of the shroud inner wall and defining an annular space between the shroud inner wall and the shroud outer wall, a first shroud port formed through the shroud inner wall and extending to the compressor wheel for allowing air to pass between the annular space and the compressor wheel, and a second shroud port formed through the shroud inner wall and extending into the air inlet of the compressor housing and positioned upstream of the first shroud port for allowing air to pass between the annular space and the compressor housing air inlet;
a compressor inlet adjustor positioned in the compressor air inlet and being continuously adjustable between a fully open configuration, a ported shroud closed configuration, and a partially-open ported shroud recirculation configuration between the fully open configuration and the ported shroud closed configuration, wherein the compressor air inlet is narrower than the compressor inlet adjustor in the fully open configuration, wherein an inner radius of the compressor inlet adjustor equals an inner radius of the second shroud port in the ported shroud closed configuration such that the second shroud port is closed and the air inlet of the compressor housing is fully open when in the ported shroud closed configuration;
a turbocharger compressor temperature module including a compressor inlet air temperature input in communication with a compressor inlet air temperature sensor, and a compressor outlet air temperature input in communication with a compressor outlet air temperature sensor;
a turbocharger compressor pressure module including a compressor inlet air pressure input in communication with a compressor inlet air pressure sensor, and a compressor outlet air pressure input in communication with a compressor outlet air pressure sensor, wherein the turbocharger compressor pressure module determines a turbocharger pressure ratio based upon the compressor inlet air pressure input and the compressor outlet air pressure input;
a turbocharger compressor corrected air flow module that determines a compressor corrected air flow into the compressor housing air inlet based upon the compressor inlet air temperature input, compressor outlet air temperature input, compressor inlet air pressure input, and compressor outlet air pressure input; and
a compressor inlet adjustor control module that adjusts the configuration of the compressor inlet adjustor based upon the turbocharger pressure ratio and the compressor corrected air flow, wherein the compressor inlet adjustor control module adjusts the configuration of the compressor inlet adjustor to a configuration between the fully open configuration and the ported shroud closed configuration when the turbocharger pressure ratio is higher than a predetermined pressure ratio threshold and the compressor corrected air flow into the compressor housing inlet is less than a maximum compressor corrected air flow of a compressor flow map for the turbocharger compressor.

US Pat. No. 11,111,842

METHOD FOR CHARGE PRESSURE CONTROL OF AN INTERNAL COMBUSTION ENGINE

VOLKSWAGEN AKTIENGESELLSC...


1. A method for charge pressure control of an internal combustion engine that is an integral part of a drive train,wherein the drive train comprises at least the internal combustion engine, an intake line, an exhaust gas line and an exhaust gas turbocharger;
wherein the internal combustion engine has at least one intake valve that fluidically connects the intake line to a combustion chamber of the internal combustion engine, and has at least one exhaust valve that fluidically connects the combustion chamber to a first section of the exhaust gas line;
wherein the first section is located between the combustion chamber and the exhaust gas turbocharger, and the exhaust gas line has a second section downstream from the exhaust gas turbocharger;
wherein an overall cross-sectional area between the first section and the second section through which an exhaust gas may flow is adjustable via an adjustable bypass and/or the exhaust gas turbocharger, wherein:the adjustable bypass has a first position having a smallest flow cross section for the exhaust gas and a second position having a largest flow cross section for the exhaust gas, and/or
the exhaust gas turbocharger is an adjustable exhaust gas turbocharger having a first position having a smallest flow cross section for the exhaust gas and a second position having a largest flow cross section for the exhaust gas;

the method comprising:
a) detecting a load requirement for the drive train; and
b) iteratively determining a position of the exhaust gas turbocharger and/or of the bypass for providing turbine power of the exhaust gas turbocharger, taking into account an opening point in time of the at least one intake valve and a closing point in time of the at least one exhaust valve,
wherein step b) further comprises determining a profile of the turbine power, at least as a function of a first pressure in the first section, and, based on the determined profile of the turbine power, iteratively determining a specific first pressure for which the turbine power is at a maximum.

US Pat. No. 11,111,841

FRAME DEVICE AND FAN MODULE WITH SUCH A FRAME DEVICE


1. A frame device for a fan module for a main cooler and for a charge air cooler of a motor vehicle, comprising:a main frame for the main cooler and a charge air frame for the charge air cooler that is separate from the main cooler; and
a seal provided between the main frame and the charge air frame, wherein the seal includes an elastic profile part fastened at least to the main frame or to the charge air frame, wherein the profile part includes a hose-shaped first profile section, wherein the hose-shaped first profile section lies against the main frame when the profile part is fastened to the charge air frame or the profile part lies against the charge air frame when the profile part is fastened to the main frame, and wherein the first profile section includes an extension that extends in a vertical direction from the charge air frame to the main frame so that the first profile section is configured to buckle relative to the vertical direction when in an assembled state.

US Pat. No. 11,111,840

COOLING DEVICE FOR ENGINE, AND FAILURE DETERMINATION METHOD THEREOF

Mazda Motor Corporation, ...


1. A cooling device for an engine provided with a water pump to be driven to rotate by the engine, the cooling device comprising:a cooling water passage for circulating cooling water discharged from the water pump via an engine body;
a flow rate control valve capable of opening and closing the cooling water passage;
a pressure sensor for detecting a pressure of cooling water flowing through the cooling water passage; and
a controller configured to execute functions of a failure determination device for determining whether the flow rate control valve has failed and a valve control device for controlling the flow rate control valve by outputting a valve opening/closing instruction to the flow rate control valve, wherein
when an engine rotation speed is lower than a predetermined reference rotation speed and when a valve closing instruction to switch the flow rate control valve from an opened state to a closed state is output from the valve control device, the failure determination device executes a first failure determination in which failure of the flow rate control valve is determined based on a pressure change of cooling water detected by the pressure sensor, and
when the engine rotation speed is equal to or higher than the reference rotation speed and when a valve opening instruction to switch the flow rate control valve from the closed state to the opened state is output from the valve control device, the failure determination device executes a second failure determination in which failure of the flow rate control valve is determined based on the pressure change of cooling water detected by the pressure sensor,
when the first failure determination is executed and when a pressure increase amount of the cooling water is equal to or smaller than a predetermined first determination increase amount, the failure determination device determines that the flow rate control valve has failed, and
when the second failure determination is executed and when a pressure decrease amount of the cooling water is equal to or smaller than a predetermined second determination decrease amount, the failure determination device determines that the flow rate control valve has failed.

US Pat. No. 11,111,839

THERMAL ISOLATION OF COOLING CIRCUITS WITH A COMMON DEGAS BOTTLE FILLING PORT

FORD GLOBAL TECHNOLOGIES,...


1. A vehicle cooling system comprising:a first cooling circuit having a first operating temperature range when the vehicle is in an operational state;
a second cooling circuit having a second operating temperature range when the vehicle is in the operational state, the first operating temperature range being higher than the second operating temperature range; and
a degas bottle having a first chamber operably coupled to the first cooling circuit and a second chamber operably coupled to the second cooling circuit,
wherein the degas bottle comprises a fill port operably coupled to the second chamber and a flow restrictor disposed at a divider separating the first chamber and the second chamber,
wherein the flow restrictor is configured to open to enable cooling fluid provided via the fill port, when the vehicle is in a non-operational state, to flow from the second chamber to the first chamber and configured to be closed when the vehicle is in the operational state to prevent the cooling fluid from flowing between the first and second chambers.

US Pat. No. 11,111,838

MARINE ENGINE EXHAUST SYSTEM HAVING SECONDARY AIR INJECTION

Indmar Products Company, ...


1. An assembly for a marine craft comprising:a marine engine having an intake manifold and an exhaust manifold;
an air compressor configured to compress ambient air into compressed air; and
a catalytic converter assembly including a catalyst element, the catalytic converter assembly being configured to convert pollutants in an exhaust gas stream received from the exhaust manifold of the engine,
a controller,
wherein the air compressor is configured to be fluidly coupled to the intake manifold of the engine for directing at least a first portion of the compressed air to the intake manifold of the engine, and wherein the air compressor is selectively fluidly coupled to the catalytic converter assembly for selectively directing a second portion of the compressed air into the exhaust gas stream at a secondary air injection location at or upstream from the catalytic converter assembly,
a first oxygen sensor in operative communication with the controller and configured to detect an oxygen level of the exhaust gas stream upstream from the secondary air injection location,
a second oxygen sensor in operative communication with the controller and configured to detect an oxygen level of the exhaust gas stream downstream from the catalytic converter assembly, wherein the controller compares oxygen levels detected by the second oxygen sensor to oxygen levels taken by the first oxygen sensor to determine whether the catalyst element is effectively removing toxic pollutants from the exhaust gas stream.

US Pat. No. 11,111,837

SYSTEM AND A METHOD FOR ADAPTING CONTROL OF A REDUCING AGENT DOSING UNIT


1. A method for adapting control of a reducing agent dosing unit in a reducing agent provision system for emission control of a combustion engine, said reducing agent provision system comprising a pump unit for pressurizing said reducing agent to be dosed, wherein said dosing unit comprising an electrically controlled valve unit arranged to be shifted between an opened state and a closed state, comprising the steps of:continuously determining a prevailing pressure of said reducing agent in said reducing agent provision system downstream of said pump unit;
initiating shifting said valve unit at a first point of time to said open state from said closed state by applying a voltage to a valve unit operation arrangement;
determining a second point of time for a characteristic pressure drop due to said shifting to said open state of said valve unit;
initiating shifting said valve unit at a third point of time to said closed state from said open state by turning off said voltage to said valve unit operation arrangement;
determining a fourth point of time for a characteristic pressure increase due to said shifting to said closed state of said valve unit;
determining a time interval between said first and said second point of time and another time interval between said third and fourth point of time; and
providing the thus determined time intervals as a basis for said adaption control of said reduction agent dosing unit for obtaining an intended dosing period during a dosing cycle.

US Pat. No. 11,111,836

REDUCTANT INJECTION SYSTEM

LIEBHERR-COMPONENTS COLMA...


1. A reductant injection system for an SCR catalyst of an internal combustion engine, the reductant injection system comprising:at least one injector;
a first storage container for storing liquid reductant;
a pump for pumping reductant from the first storage container to the injector for injection into an exhaust gas stream, wherein the injector is cooled by reductant; and
a second storage container for storing liquid reductant that is configured such that the at least one injector is cooled by reductant from the second storage container,
wherein the reductant injection system is configured such that the injector is cooled by reductant from the first storage container and by reductant from the second storage container, wherein the reductant injection system comprises a controller having at least an injection mode and a cooling mode, and
wherein at least one of the following applies:in the injection mode, reductant from the first storage container is used both for injection into the exhaust gas stream and for cooling of the injector, and
in the cooling mode, reductant from the second storage container is used for cooling of the injector.


US Pat. No. 11,111,835

INJECTOR FOR INJECTING A GASEOUS REDUCING AGENT INTO AN EXHAUST GAS STREAM, COMPRISING AT LEAST ONE ANTI-BACKFLOW DEVICE


1. An injector for injecting a gaseous reducing agent into an exhaust gas stream of an internal combustion engine, the injector comprising:at least one injection nozzle;
a dosing system to provide a dosed flow of reducing agent to the at least one or each injection nozzle; and
an injection line fluidically connecting the dosing system to the at least one or each injection nozzle, wherein the injection line comprises an upstream pipe fluidically connected to the dosing system, at least one downstream pipe fluidically connected to a respective injection nozzle, and at least one anti-backflow device to avoid or minimize fluidic flow from the at least one or each downstream pipe toward the upstream pipe, and wherein the at least one anti-backflow device has at least one constriction with a reduced flow-section relative to the at least one downstream pipe, and wherein a ratio between a flow section of the at least one downstream pipe and a flow section of the at least one constriction is comprised between 4 and 25.

US Pat. No. 11,111,834

METHODS AND SYSTEMS FOR A MIXING CHAMBER

Ford Global Technologies,...


1. An internal combustion engine with an exhaust gas discharge system for discharging exhaust gas from at least one cylinder, the internal combustion engine, comprising:at least one exhaust gas aftertreatment system is arranged in the exhaust gas discharge system;
an injector is positioned to inject a reducing agent into a mixing chamber upstream of the at least one exhaust gas aftertreatment system; and
a turbine is arranged in the exhaust gas discharge system upstream of the at least one exhaust gas aftertreatment system, wherein a turbine casing contains at least one impeller mounted on a rotatable shaft, wherein an inlet region is upstream of and supplies exhaust gas to the at least one impeller and an outlet region is downstream of and discharges exhaust gas from the at least one impeller, and at least one flow channel fluidly couples the inlet region to the outlet region via the at least one impeller, wherein the mixing chamber is arranged inside walls of the turbine casing and fluidly coupled to the at least one flow channel at a portion of the turbine upstream and radially outside of the outlet region and downstream of the at least one impeller via at least one exhaust gas supply line.

US Pat. No. 11,111,833

METHOD FOR HEATING AN EXHAUST SYSTEM OF A COMBUSTION ENGINE OF A MOTOR VEHICLE

Robert Bosch GmbH, Stutt...


1. A method for heating an exhaust system of a combustion engine (10) of a motor vehicle, wherein the exhaust system comprises at least two components (12, 13, 15) for exhaust gas cleaning and wherein for a first component (12) of the at least two components (12, 13, 15), a temperature regulation is provided for heating the first component (12) while in a heating operation mode, wherein, in the heating operation mode, a heating operation is used for additionally heating a second component (13) of the at least two components (13, 15), for which no temperature regulation is provided, via a pulse control including heating pulses (101) and heating pauses (102), andwherein the method further comprises switching between the heating operation mode and a normal operation that does not include heating measures and wherein the heating operation mode includes affecting an injection timing of the combustion engine (10).

US Pat. No. 11,111,832

CONDITIONING OF THE EXHAUST GAS PLUME OF A MARINE VESSEL

YARA MARINE TECHNOLOGIES ...


1. An arrangement for a marine vessel, comprising:a combustion unit arranged in an engine room of the marine vessel;
an exhaust gas cleaning system comprising a scrubber, the exhaust gas cleaning system being in flow connection with the combustion unit and being arranged for receiving and for cleaning the exhaust gas from the combustion unit resulting in a cleaned exhaust gas;
a cleaned gas exhaust pipe being in flow connection with the exhaust gas cleaning system and arranged for receiving the cleaned exhaust gas;
a plume control system, comprising:an air intake for taking in ambient air;
a heater for heating the ambient air, producing heated air; and
a gas mixer placed in the cleaned gas exhaust pipe and arranged for mixing the cleaned exhaust gas in the cleaned gas exhaust pipe with the heated air, resulting in an exhaust gas mixture that is blown out into the atmosphere via one or more cleaned gas exhaust pipe outlets,


wherein the plume control system comprises a fan arrangement placed upstream the heater and arranged for blowing the ambient air into the heater and for blowing the heated air further towards the gas mixer and,
wherein the plume control system comprises:a flexible connection placed after the fan arrangement to reduce the fan vibrations;
a silencer placed between the air intake and the fan arrangement;
a valve arranged to be closed to bypass the exhaust gas cleaning system in case it is not in use; and/or;
a throttle valve placed in the cleaned gas exhaust pipe between a demister and the gas mixer, the throttle valve having a diameter that is smaller than the diameter of the cleaned gas exhaust pipe.

US Pat. No. 11,111,831

CYLINDER HEAD OIL SEPARATOR FOR AN INTERNAL COMBUSTION ENGINE (FLOW-CONTROLLED OIL SEPARATOR)

MONTAPLAST GMBH, Morsbac...


1. A cylinder head oil separator which is arranged in a cylinder head of an internal combustion engine, wherein the internal combustion engine accommodates in an engine block in relatively moveable relationship at least one piston which with a piston lower end drives a crankshaft mounted rotatably in a crankcase, wherein there is provided a sump arranged beneath the crankshaft for collecting an oil, wherein the cylinder head oil separator has a first opening for the feed of an air-oil aerosol fed by way of a feed line from the crankcase, an oil separation apparatus fluidically connected thereto for separation of the oil from the air-oil aerosol and a fluidically connected second opening which adjoins the oil separation apparatus and which can be connected in flow relationship to a return line for return of an air cleaned of the oil, wherein the oil separation apparatus includes a flow passage configured in the form of a Tesla flow valve, such that an air-oil aerosol entering at the first opening in a separation direction (SR1) to an air outlet of the air cleaned of the oil at a second opening flows through a longer flow path than a fluid which enters at the second opening and which flows to the first opening in a venting direction (SR2) in opposite relationship to the separation direction and the flow passage is of such a geometrical configuration in the separation direction (SR1) in order to implement flow-controlled oil separation.

US Pat. No. 11,111,830

INTERNAL COMBUSTION ENGINE

Deutz Aktiengesellschaft,...


1. An internal combustion engine comprising:a crankcase;
a cylinder head;
a cylinder head cover;
an oil separator; and
an oil pan for collecting returning oil as well as having an oil return channel that connects the oil separator and the oil pan, a top end of the oil return channel being slanted at an intersection with a lower end of the oil separator to align the top end of the oil return channel with a surface of the oil in the oil separator when the internal combustion engine is in a slanted position.

US Pat. No. 11,111,829

INTERNAL COMBUSTION ENGINE WITH IMPROVED LUBRICATION CIRCUIT


1. The internal combustion engine comprising:a crank chamber which houses a crankshaft connected to moving parts able to supply torque to said crankshaft,
a lubrication circuit configured to lubricate with lubricant oil said crankshaft and/or said moving parts,
an oil sump to collect said lubricant oil,
a separating partition which separates the crank chamber from the oil sump,
wherein the lubrication circuit comprises a first oil pump and a second oil pump,
wherein the first oil pump is fluidically connected in aspiration to the crank chamber and in delivery to the oil sump, the second oil pump is fluidly connected in aspiration to the oil sump and in delivery to the crank chamber by the lubrication circuit, to re-introduce the oil in the crank chamber and lubricate said moving parts,
wherein the crank chamber comprises an oil scraper fin substantially counter-shaped with respect to a counterweight of the crankshaft so as to almost skim said counterweight.

US Pat. No. 11,111,828

VALVETRAIN FOR AN INTERNAL COMBUSTION ENGINE, IN PARTICULAR OF A MOTOR VEHICLE

Daimler AG, Stuttgart (D...


1. A valvetrain for an internal combustion engine, the valvetrain comprising:a camshaft (12) configured to rotate about an axis of rotation (14);
a first cam piece (18) rotationally fixed on the camshaft (12), the first cam piece (18) including at least two cams (22, 24) configured to alternately actuate a first gas exchange valve;
a second cam piece (20) rotationally fixed on the camshaft (12), the second cam piece (20) including at least two cams (22, 24) configured to alternately actuate a second gas exchange valve; and
an actuator (26) wherein configured to axially shift the first and second cam pieces (18, 20) relative to the camshaft (12);
wherein the first cam piece (18) further includes a radially outwardly protruding first rib (30) which extends circumferentially about the first cam piece (18) and entirely within a first angle region corresponding to a first half rotation of the camshaft (12);
wherein the second cam piece (20) further includes a radially outwardly protruding second rib (36) which extends circumferentially about the second cam piece (20) and entirely within a second angle region corresponding to a second half rotation of the camshaft (12);
wherein the actuator (26) engages the first rib (30) and is disengaged from the second rib (36) during the first half rotation so as to axially shift the first cam piece (18); and
wherein the actuator (26) engages the second rib (36) and is disengaged from the first rib (30) during the second half rotation so as to axially shift the second cam piece (20).

US Pat. No. 11,111,827

DOUBLE FLAPPER VALVE FOR A VARIABLE CAM TIMING SYSTEM

BORGWARNER, INC., Auburn...


1. A check valve for controlling fluid within or into a variable cam timing phaser, comprising:a double flapper check valve assembly with an open position and a closed position, the double flapper check valve comprising:a housing having a body forming at least one stopper;
a flapper valve comprising at least two flexible flaps received within the housing and aligned with the stopper(s); and
a valve seat received within the housing, the valve seat defining openings aligned with the at least two flexible flaps, axially opposite the stopper(s);
wherein when fluid flows through the openings of the valve seat, the fluid pushes the at least two flaps away from the valve seat and towards the stopper(s), permitting the flow of fluid into the variably; cam timing phaser; and
wherein when fluid flows from the body onto the at least two flaps, the fluid pushes the at least two flaps towards the valve seat, sealing the openings of the valve seat and preventing fluid from entering the supply.


US Pat. No. 11,111,826

HYDRAULIC VALVE FOR A CAM PHASER

ECO Holding 1 GmbH, Mark...


1. A hydraulic valve for a cam phaser, the hydraulic valve comprising:a bushing including a piston that is movable in a bore along a longitudinal direction;
a supply connection for feeding a hydraulic fluid;
a first operating connection and a second operating connection; and
a first tank drain connection and a second tank drain connection configured to drain the hydraulic fluid,
wherein a first check valve is associated with the first operating connection and a second check valve is associated with the second operating connection, and the first operating connection and the second operating connection are connectable through at least one of the first check valve and the second check valve alternatively with each other or with the supply connection or with the first tank drain connection or with the second tank drain connection by moving the piston,
wherein the hydraulic valve includes five switching positions,
wherein the second operating connection is connected with the supply connection and the first operating connection is connected with the first tank drain connection in a first switching position of the piston and a fluid path from the first operating connection to the second operating connection is openable by the first check valve that is associated with the first operating connection under a pressure that exceeds a threshold value,
wherein the second operating connection is connected with the supply connection and a connection between the first operating connection and the first tank drain connection is interrupted in a second switching position of the piston and a fluid path from the first operating connection to the second operating connection is openable by the first check valve that is associated with the first operating connection under a pressure that exceeds the threshold value,
wherein a connection between the first operating connection, the second operating connection and the supply connection and the first tank drain connection and the second tank drain connection is interrupted in a third switching position of the piston which is positioned in a center position,
wherein the first operating connection is connected with the supply connection and a connection between the second operating connection and the second tank drain connection is interrupted in a fourth switching position of the piston and a fluid path from the second operating connection to the first operating connection is openable by the second check valve that is associated with the second operating connection under a pressure that exceeds the threshold value,
wherein the first operating connection is connected with the supply connection and the second operating connection is connected with the second tank drain connection in a fifth switching position of the piston and a fluid path from the second operating connection to the first operating connection is openable by the second check valve that is associated with the second operating connection under a pressure that exceeds the threshold value,
wherein the connection between the first operating connection and the first tank drain connection in the first switching position is throttled by a first throttling cross section of a first annular tubular channel formed by a first outer circumferential surface of the piston and a first inner circumferential surface of the bore wherein the first throttling cross section is flowed through in the longitudinal direction, and
wherein the connection between the second operating connection and the second tank drain connection in the fifth switching position is throttled by a second throttling cross section of a second annular tubular channel formed by a second outer circumferential surface of the piston and a second inner circumferential surface of the bore wherein the second throttling cross section is flowed through in the longitudinal direction.

US Pat. No. 11,111,825

HYDRAULIC VALVE MECHANISM WITH VARIABLE VALVE OPENING TIMES AND INTERNAL COMBUSTION ENGINE

LONGKOU ZHONGYU INVESTMEN...


1. A hydraulic valve mechanism with variable valve opening times, the hydraulic valve mechanism comprising:a housing, provided with a first oil passage and a second oil passage;
a valve cam, wherein the valve cam comprises a main protrusion and at least one auxiliary protrusion, the valve cam is rotatable, and the valve cam is disposed outside the housing;
a hydraulic rotary valve, disposed in the housing and forming a hydraulic rotary valve oil chamber with the housing, wherein the hydraulic rotary valve comprises a valve sleeve and a valve core provided with an axial hole, the valve core is installed in an inner hole of the valve sleeve, the valve core and the valve sleeve rotate around a same axis and are provided with radial oil holes at corresponding axial positions respectively, when the radial oil holes of the valve core and the valve sleeve are in communication, the hydraulic rotary valve is in an open state, when the radial oil holes of the valve core and the valve sleeve are mutually staggered, the hydraulic rotary valve is in a closed state, the hydraulic rotary valve oil chamber is in communication with the first oil passage, and the axial hole of the valve core is in communication with the second oil passage;
a hydraulic drive component, supported by the housing and forming a hydraulic drive oil chamber with the housing, wherein the hydraulic drive component is driven by the valve cam, and the hydraulic drive oil chamber is in communication with the first oil passage; and
a valve drive component, supported by the housing and forming a valve drive oil chamber with the housing, wherein the valve drive oil chamber is in communication with the first oil passage, when the radial oil holes of the valve core and the valve sleeve are mutually staggered, the hydraulic rotary valve is in the closed state, and the hydraulic drive component drives the valve drive component to open a corresponding valve.

US Pat. No. 11,111,824

MULTI-FUNCTIONAL FECAL WASTE AND GARBAGE PROCESSOR AND ASSOCIATED METHODS


1. A method of processing wet sludge with a multifunctional waste processing system for electricity and clean generation, comprising:directing a flow of wet organic-based sludge to an inlet of a fuel path of a fuel dryer assembly, wherein the sludge comprises a mixture of water and solid fuel material,
directing the flow of sludge along the fuel path through a heater portion of the fuel dryer assembly and boiling the wet fecal sludge and thermally separating the water from the solid fuel material to provide dried fuel, the fuel dryer having a first steam outlet, a dry fuel outlet;
condensing in a condenser steam liberated from the wet fecal sludge, wherein the condenser has a fresh water condenser assembly coupled to the first steam outlet and configured to condense the steam liberated from the wet fecal sludge for use as potable water;
receiving in a dry fuel combustor assembly dried fuel the dry fuel outlet of the fuel dryer assembly, the dry fuel combustor assembly having a combustor portion and having a boiler configured to receive heat from the combustor portion, the boiler having a water inlet and a second steam outlet;
directing steam from the boiler to a steam inlet of a fluid path of a condenser portion of the fuel dryer assembly, wherein the fluid path through the condenser is isolated from the fuel path and has a fluid outlet;
combusting the dried fuel in the combustor portion to generate heat that boils water in the boiler to generate steam;
generating electricity with a steam powered generator via the steam received from the second steam outlet of the boiler, the steam powered generator having a third steam outlet coupled to the steam inlet of the condenser portion;
directing the condensed steam from the fresh water condenser assembly through a water treatment system that receives the condensed steam in either vapor phase or liquid phase or both, wherein the condensed steam as liquid water is passed through a purifier and filter to provide the potable water; and
pumping with a water pump a flow of water from the fluid outlet of the condenser portion of the fuel dryer; wherein the flow of water is pumped from a water outlet of the water pump to the water inlet of the boiler;
wherein the boiler converts a flow of water entering the boiler to a flow of steam to power the steam-powered generator.

US Pat. No. 11,111,823

TURBINE RING ASSEMBLY WITH INTER-SECTOR SEALING

SAFRAN AIRCRAFT ENGINES, ...


1. A turbine ring assembly comprising a plurality of adjacent ring sectors forming a turbine ring extending circumferentially around an axial direction, each ring sector having a platform with, along a radial direction of the turbine ring, an inner face defining the inner face of the turbine ring and an outer face from which an upstream lug and a downstream lug extend along the radial direction, each ring sector comprising a first groove present in the platform in the vicinity of the inner face of said platform, a second groove present in the platform in the vicinity of the outer face of said platform, the first and the second groove extending along the axial direction of the turbine ring, an upstream groove extending radially into the upstream lug and a downstream groove extending radially into the downstream lug, a first sealing tab extending into the first groove, a second sealing tab extending into the second groove, an upstream sealing tab extending into the upstream groove and a downstream sealing tab extending into the downstream groove,wherein the second sealing tab includes one or several opening.

US Pat. No. 11,111,822

TURBINE RING ASSEMBLY

SAFRAN AIRCRAFT ENGINES, ...


1. A turbine ring assembly comprising:a plurality of ring sectors forming a turbine ring, each ring sector being made of ceramic-matrix composite material and having, along a section plane defined by an axial direction and a radial direction of the turbine ring, a portion forming an annular base with, in the radial direction of the turbine ring, an inner face defining the inner face of the turbine ring and an outer face from which a first attachment tab and a second attachment tab protrude;
a ring support structure, the ring support structure being made of metal and including a central shroud from which a first radial clamp and a second radial clamp protrude between which the first attachment tab and the second attachment tab of each ring sector are maintained;
a first annular flange; and
a second annular flange disposed upstream of the first annular flange with respect to a direction of an air flow intended to pass through the turbine ring assembly,
wherein the first and second annular flanges each respectively have a first free radial end and a second radial end opposite to the first free radial end, the first free radial end of the first flange bearing axially against the first attachment tab, the first free radial end of the second annular flange being distant from the first free radial end of the first annular flange in the axial direction,
wherein the second radial ends of the first annular flange and second annular flange are removably fastened to the first radial clamp of the central shroud of the ring support structure such that the second radial end of the first annular flange is sandwiched between the first radial clamp of the central shroud of the ring support structure and the second radial end of the second annular flange,
wherein the first annular flange and the second annular flange are shrink-fitted to the ring support structure, the second radial end of the second annular flange abutting an inner surface of the central shroud of the ring support structure in the radial direction, and a portion of the first annular flange abutting the ring support structure in the radial direction, and
wherein one of the second radial end of the first annular flange and the second radial end of the second annular flange presents a contact abutment protruding in the axial direction and abutting axially the other of the second radial end of the first annular flange and the second radial end of the second annular flange.

US Pat. No. 11,111,821

RETENTION ASSEMBLY FOR GAS TURBINE ENGINE

RAYTHEON TECHNOLOGIES COR...


1. A retention assembly for a gas turbine engine comprising:a bolt including a shaft having a first portion and a second portion;
a spacer;
a housing defining at least one receiving aperture sized to receive the second portion of the shaft;
a fitting component defining a first through-hole and a second through-hole located adjacent to the first through-hole, the second through-hole being sized for the first portion of the shaft and the second portion of the shaft to extend therethrough; and
a conduit assembly including a first conduit for securing to the fitting component such that the first through-hole is open to the first conduit,
wherein the bolt, the spacer, the fitting component, and the housing are arranged with one another to define a captive clearance fit such that a first clearance space is defined between a first surface of the second through-hole and the first portion of the bolt when the spacer and fitting component are joined with one another via a press force.

US Pat. No. 11,111,820

GAS TURBINE FOR AIRCRAFT

MITSUBISHI HEAVY INDUSTRI...


1. A gas turbine for an aircraft comprising:a rotor which is capable of rotating about an axis;
blades each including a blade body extending outward from the rotor in a radial direction of the rotor, a blade shroud formed on a distal end of the blade body, and a fin protruding from an outer peripheral surface of the blade shroud;
a casing surrounding the rotor and the blades so as to form gaps between the casing and the fins; and
vanes each including a vane shroud fixed to the casing at a downstream side of the blade in an axial direction of the axis, of which at least a leading end portion formed upstream in the axial direction is located outside with respect to a first extended line of an inner peripheral surface of the casing in the radial direction about the axis, and a vane body extending inward from the vane shroud in the radial direction,
wherein a leading edge of the vane body formed upstream in the axial direction includes: a receding start point; a radial outer end portion which is connected to the vane shroud and is receded downstream in the axial direction with respect to the receding start point; and a leading edge curved portion which is formed to connect the receding start point and the radial outer end portion and which is arched upstream in the axial direction, and
wherein the receding start point is located outside a rear end of an inner surface of the blade shroud in the radial direction.

US Pat. No. 11,111,818

FLEXIBLE SUPPORT STRUCTURE FOR A GEARED ARCHITECTURE GAS TURBINE ENGINE

RAYTHEON TECHNOLOGIES COR...


1. A gas turbine engine, comprising:a fan shaft driving a fan having fan blades;
an outer housing surrounding the fan, and a bypass flow path within said outer housing;
a fan shaft support that supports said fan shaft, said fan shaft support defining a fan shaft support transverse stiffness;
a gear system connected to said fan shaft, said gear system includes a gear mesh defining a gear mesh transverse stiffness; and
a flexible support which supports said gear system relative to a static structure and defines a flexible support transverse stiffness, wherein said flexible support transverse stiffness is less than 11% of said fan shaft support transverse stiffness and said flexible support transverse stiffness is less than 8% of said gear mesh transverse stiffness.

US Pat. No. 11,111,817

COOLING DEVICE FOR CASING SUPPORT PART OF ROTARY MACHINE, ROTARY MACHINE, AND COOLING METHOD FOR CASING SUPPORT PART OF ROTARY MACHINE

MITSUBISHI POWER, LTD., ...


1. A cooling device for a casing support part that cools a support part of a rotary machine that comprises: a rotating body including a rotating-body main body and a pair of rotor shaft ends fixed to both outer sides in a shaft direction of the rotating-body main body; a casing accommodating the rotating-body main body and being penetrated by the rotor shaft ends; a bearing rotatably supporting the rotor shaft ends and having a bearing face being provided with lubricant fluid from a lubricant line; and the support part supporting the casing, the cooling device comprising a heat exchanger being disposed on the lubricant line and cooling the support part through heat exchanging between the lubricant fluid and the support part, whereinthe support part comprises a protruding unit protruding from a main body of the casing, and a supporting base mounting the protruding unit thereon,
the heat exchanger is provided in the support part,
the heat exchanger comprises a plurality of branch pipes arranged in parallel with one another in a protruding direction of the protruding unit, and
the plurality of branch pipes are regulated so that the branch pipe closer to the main body of the casing is provided with more lubricating fluid.

US Pat. No. 11,111,816

ROTOR BLADE ARRANGEMENT

ROLLS-ROYCE plc, London ...


1. A rotor for a gas turbine engine comprising a rotor hub and a plurality of rotor blades, each rotor blade being attached to the rotor hub at a rotor blade root, wherein:the plurality of rotor blades are arranged circumferentially around the rotor hub such that each rotor blade has two neighbouring rotor blades;
the plurality of rotor blades have a critical mode shape that is excited at a frequency that corresponds to an excitation frequency in use;
each rotor blade of the plurality of rotor blades has a respective critical mode stiffness that is the stiffness of the respective blade in the critical mode shape, wherein the plurality of rotor blades define a median critical mode stiffness, and wherein the respective critical mode stiffness of each rotor blade is greater than, less than, or equal to the median critical mode stiffness;
for a majority of rotor blades in a first set of rotor blades that have a critical mode stiffness greater than the median critical mode stiffness, at least one of the neighbouring rotor blades also has a critical mode stiffness greater than the median; and
for a majority of rotor blades in a second set of rotor blades that have a critical mode stiffness less than the median critical mode stiffness, at least one of the neighbouring rotor blades also has a critical mode stiffness less than the median critical mode stiffness.

US Pat. No. 11,111,815

FRANGIBLE GAS TURBINE ENGINE AIRFOIL WITH FUSION CAVITIES

General Electric Company,...


1. An airfoil defining a span extending between a root and a tip and a chord at each point along the span extending between a leading edge and a trailing edge, the airfoil comprising:a frangible airfoil portion at the tip extending between the leading edge and the trailing edge and extending between the tip and a frangible line along the span, the frangible airfoil portion including an exterior surface, wherein the exterior surface at least partially defines at least one fusion cavity, with a portion of the at least one fusion cavity closest the root at least partially defining the frangible line; and
a residual airfoil portion extending from the frangible line to the root along the span, wherein the residual airfoil portion meets the frangible airfoil portion at the frangible line, the frangible line defining a point of detachment of the frangible airfoil portion during a failure mode of the airfoil;
wherein the at least one fusion cavity comprises at least one fusion hole extending from the tip at least partially along the span to the frangible line.

US Pat. No. 11,111,814

TURBINE ENGINE OPERATIONAL TESTING

General Electric Company,...


1. A computer-implemented method of reducing combustor blowout during turbine engine testing, comprising:receiving, by a system comprising at least one processor, sensor data associated with at least one sensor for a turbine engine, the sensor data identifying a current fuel flow associated with the turbine engine;
determining, by the system, a predicted fuel flow of the turbine engine based at least in part on the current fuel flow and a fuel flow reduction associated with an engine operational test, the engine operational test being thrust control test;
comparing, by the system, the predicted fuel flow to at least one threshold;
selectively executing, by the system, the engine operational test in response to comparing the predicted fuel flow to the at least one threshold; and
generating, by the system, an identifier in response to the engine operational test being skipped when the predicted fuel flow is below the at least one threshold.

US Pat. No. 11,111,813

GAS TURBINE ENGINE MAINTENANCE METHOD

General Electric Company,...


1. A method for maintaining a gas turbine engine using a maintenance tool, the gas turbine engine having a compressor section, a combustion section, and a turbine section in serial flow order and together defining at least in part a core air flowpath, the gas turbine engine defining a plurality of inspection holes spaced circumferentially about the gas turbine engine, the method comprising:assembling a plurality of rail segments of a rail system of the maintenance tool within the core air flowpath of the gas turbine engine, the plurality of rail segments connected to one another; and
moving a maintenance head of the maintenance tool along an exterior of the plurality of rail segments of the rail system to perform maintenance operations within the core air flowpath of the gas turbine engine,
wherein the assembling of the plurality of rail segments of the rail system comprises inserting the plurality of rail segments of the rail system through an individual inspection hole of the plurality of inspection holes and mounting the rail system within the core air flowpath by fixing a plurality of radial clamps to the rail system, the plurality of radial clamps extending through respective holes of the plurality of inspection holes.

US Pat. No. 11,111,812

TURBINE ARRANGEMENT FOR AN EXHAUST GAS TURBOCHARGER

BorgWarner Inc., Auburn ...


1. A turbine arrangement for an exhaust gas turbocharger comprisinga turbine housing;
a turbine wheel, which is arranged in the turbine housing and has an axis of rotation;
a variable turbine geometry arrangement (VTG arrangement) comprisinga bearing ring;
a disc; and

multiple vanes rotatably mounted in the bearing ring, said vanes arranged between the bearing ring and the disc; anda contour sleeve which is coupled with the disc;

characterized in that the turbine housing comprises an axial stop, against which the contour sleeve stops in order to secure the VTG arrangement in an axial direction within the turbine housing, wherein the contour sleeve comprises a cylinder section and an annular section, wherein the annular section adjoins the disc and the cylinder section comprises an end area and an intermediate area, and wherein the intermediate area is arranged between the end area and the annular section and a wall thickness of the contour sleeve is smaller in the intermediate area than in the end area.

US Pat. No. 11,111,811

GAS TURBINE ENGINE WITH MORPHING VARIABLE COMPRESSOR VANES

Raytheon Technologies Cor...


16. A gas turbine engine comprising:at least one row of rotating blades;
a plurality of stator vanes upstream of said at least one row of blades;
said plurality of stator vanes each being provided with airfoils extending between a leading edge and a trailing edge, said airfoils having a suction side and a pressure side and there being at least one piezoelectric actuator for changing a shape of at least one of said leading edge and said trailing edge;
wherein said airfoil is connected to radially inner and outer platforms, and there is an elastomeric material between said airfoil and said radially inner and outer platforms to accommodate movement of at least one of said leading and trailing edges; and
wherein said airfoils are formed of a metal.

US Pat. No. 11,111,810

CONTROL ASSEMBLY FOR A STAGE OF VARIABLE-PITCH VANES FOR A TURBINE ENGINE

SAFRAN AIRCRAFT ENGINES, ...


1. A control assembly for a stage of variable-pitch vanes for a turbine engine, each variable-pitch vane having a cylindrical pivot at a radially outer end thereof, the control assembly comprising:an actuating ring having an annular body having an axis of revolution;
a vane guidance means for connecting to the cylindrical pivots of the variable pitch vanes;
a rotating means for rotating the actuating ring about a casing of the turbine engine; and
a centering means for cooperating with the casing to center the actuating ring, the centering means having at least one skid bearing against the casing, the skid being secured to a rod that intersects with a radial housing of the actuating ring, and the skid having an abutment element bearing against a radially external surface of the actuating ring,
wherein at least one of the skid or the rod are configured to cooperate by radial sliding with an inner wall of a housing, and in that an elastically deformable bearing means are mounted between the skid and the actuating ring to urge the skid radially towards the casing, the skid being configured to be mobile during operation by sliding between a radially internal position defined by a bearing against the abutment element on the actuating ring, and a radially external position wherein the abutment element is at a distance from the actuating ring,
wherein the skid and the rod are monolithic,
wherein the skid comprises a first cylindrical portion with a first diameter that is smaller than a second cylindrical portion, the first cylindrical portion extending between the rod and the second cylindrical portion, the second cylindrical portion being configured to bear against the casing,
wherein the first cylindrical portion is inserted by sliding in an intermediate cylindrical part of the housing which extends radially between a first cylindrical part with a second diameter that is smaller than a third diameter of the intermediate cylindrical part and a second cylindrical part which opens onto the actuation ring,
wherein a first annular shoulder connects the first cylindrical part and the intermediate cylindrical part and wherein a second annular shoulder connects the second cylindrical part and the intermediate cylindrical part,
and wherein the elastically deformable bearing means bear against the second annular shoulder and the first cylindrical portion is able to bear against the first annular shoulder.

US Pat. No. 11,111,809

ELECTRIC HEATING FOR TURBOMACHINERY CLEARANCE CONTROL

Raytheon Technologies Cor...


9. A method for controlling blade tip clearance for a gas turbine engine, comprising:detecting, by a controller, a condition of the gas turbine engine;
sending, by the controller, electric current to a heating element;
heating, by the heating element, a clearance control ring, wherein the clearance control ring is positioned adjacent at least one case support to form an internal cavity between an engine case and the clearance control ring, and wherein the clearance control ring is mounted to an outer air seal such that the clearance control ring can move independently of the engine case; and
moving the clearance control ring together with the outer air seal in a first direction with respect to the engine case and the at least one case support to maintain a gap between a rotor blade and the outer air seal,
wherein the at least one case support extends radially inward from the engine case, and the at least one case support provides support for the clearance control ring.

US Pat. No. 11,111,808

COATING WITH PROPERTY GRADIENT FOR INNER WALL OF TURBOMACHINE

SAFRAN AIRCRAFT ENGINES, ...


1. A property gradient coating intended to be applied by additive manufacture to an inner wall of a casing mounted on the periphery of moving blades of a turbomachine rotor, comprising superimposed layers of an outer surface of said coating on said casing inner wall:a first layer consisting of a three-dimensional scaffolding of filaments of an abradable material forming an ordered network of channels or microchannels with pore sizes between 50 and 250 microns and a porosity greater than 85%, and
a second layer having a function of dissipating energy from acoustic waves striking said outer surface of said coating and consisting of a three-dimensional scaffolding of filaments of a first thermosetting material forming an ordered network of channels or microchannels with pore sizes between 50 and 400 microns and porosity greater than 60%.

US Pat. No. 11,111,807

ABRADABLE LAYER WITH GLASS MICROBALLOONS

RAYTHEON TECHNOLOGIES COR...


1. A gas turbine engine comprising:a circumferential row of blades, the blades having respective blade tips; and
a seal disposed about the blades, the seal having an abradable layer which the tips of the blades, at times, rub against when the blades rotate, there being a maximum temperature at the abradable layer without rubbing, the abradable layer including,a metal matrix, and
microballoons dispersed in the metal matrix, the microballoons being formed of a glass having a glass transition temperature that is approximately 50° F. to 300° F. greater than the maximum temperature.


US Pat. No. 11,111,806

BLADE OUTER AIR SEAL WITH CIRCUMFERENTIAL HOOK ASSEMBLY

Raytheon Technologies Cor...


1. A gas turbine engine comprising:a compressor section and a turbine section, said turbine section including at least one rotor and at least one blade extending radially outwardly from said rotor to a radially outer tip;
a blade outer air seal assembly including a plurality of blade outer air seals, positioned radially outwardly of said radially outer tip of said blade, each said blade outer air seal having forward and aft hooks, and said forward and aft hooks being supported on forward and aft seal hooks of an attachment block, said forward and aft seal hooks of said attachment block both facing forwardly;
said attachment block is supported on forward and aft case hooks on a static casing, with said forward and aft case hooks on said static casing both facing rearwardly;
said blade outer air seal forward and aft hooks extending at angles relative to an upper surface of a web that is between 20 and 70 degrees, each of said angles are measured as an averaged position along a length of the hook measured relative to an axis taken parallel to a rotational axis of said gas turbine engine;
wherein said blade outer air seal is formed of a plurality of laminate layered with a central web formed of a plurality of laminate members including an inner reinforcement member, and an outer overwrap that wraps around said inner reinforcement member, and radially outwardly and across said forward and aft hooks, and said inner reinforcement member not forming a portion of said blade outer air seal forward and aft hooks;
wherein said plurality of laminate members have a fibrous woven structure;
wherein there are hook reinforcement plies positioned to define each of said blade outer air seal forward and aft hooks, and radially outward of said inner reinforcement member, and there being inner front and aft plies positioned partially within each of said blade outer air seal forward and aft hooks, and extending outwardly of each of said blade outer air seal forward and aft hook to be radially outward of said inner reinforcement member;
wherein spaces are defined radially between said hook reinforcement plies, said inner reinforcement member, and each said inner forward and aft plies and loose fibers are received within said spaces;
wherein wedge seals are positioned across circumferential gaps between a plurality of said blade outer air seals;
wherein said attachment block has a forward case mount hooks and an aft case mount hook, and said attachment block being supported on a forward case hook and an aft case hook of a static casing within the engine, said aft case mount hook on said attachment block and said forward case mount hook on said attachment block facing in a first common axial direction, and said forward case hook and said aft case hook facing in a second common axial direction which is opposed to said first common axial direction; and
wherein said forward case mount hook and said aft case mount hook being circumferentially offset and said forward case hook and said aft case hook being circumferentially offset, and said forward case mount hooks on said attachment blocks being offset from said aft case hooks on said static casing, such that said forward case mount hooks on said attachment blocks can move axially circumferentially intermediate said aft case hooks on said static casing during an assembly.

US Pat. No. 11,111,805

MULTI-COMPONENT ASSEMBLED HYDROSTATIC SEAL

RAYTHEON TECHNOLOGIES COR...


1. A method of manufacturing a hydrostatic advanced low leakage seal configured to be disposed between relatively rotatable components, the method comprising:manufacturing a plurality of separate, independent components of the seal, wherein the plurality of separate, independent components include a first portion and a second portion, the first portion comprising a shoe and a first beam, the second portion comprising a second beam and a base portion, the first portion and the second portion operatively coupled to each other; and
assembling the plurality of separate, independent components to form the seal.

US Pat. No. 11,111,804

INSERTS FOR SLOTTED INTEGRALLY BLADED ROTOR

RAYTHEON TECHNOLOGIES COR...


1. An integrally bladed rotor comprising:a central hub;
an outer rim defining an outer circumference of the central hub, the outer rim defining a plurality of platforms;
a plurality of circumferentially distributed blades, wherein a blade extends from each of the plurality of platforms;
a rotor slot arranged between two adjacent blades, wherein the rotor slot is defined by a cut within the outer rim; and
a rotor slot insert installed within the rotor slot, the rotor slot insert sized and shaped to fit within the rotor slot and prevent air leakage from a first side of the central hub to a second side of the central hub through the rotor slot during operation of the integrally bladed rotor,
wherein the rotor slot insert comprises an integral stop configured to engage with the first side of the central hub.

US Pat. No. 11,111,803

SEALING STRUCTURE BETWEEN TURBINE ROTOR DISK AND INTERSTAGE DISK


1. A sealing structure for a gas turbine including a plurality of turbine rotor disks, the sealing structure comprising:a turbine rotor disk of the plurality turbine rotor disks;
a turbine blade fastened to a coupling slot formed in a circumferential surface of the turbine rotor disk, the turbine blade includinga root having a shape corresponding to the coupling slot,
a platform positioned radially outward from the root,
a blade extending from the platform, and
a blade circumferential surface that is formed on a radially inner side of the platform and protrudes in an axial direction, the blade circumferential surface extending in a circumferential direction of the turbine rotor disk and mutually engaging with a disk circumferential surface formed circumferentially on the turbine rotor disk;

an interstage disk interposed between adjacent turbine rotor disks of the plurality of turbine rotor disks, the interstage disk including a rim portion extending radially outward and a groove formed in the rim portion; and
a plurality of static ring seals mounted in the groove of the interstage disk, each static ring seal having an outer circumferential surface facing toward the blade circumferential surface and the disk circumferential surface, the plurality of static ring seals configured such that the outer circumferential surface of all of the plurality of static ring seals contact the blade circumferential surface and such that the outer circumferential surface of at least one of the plurality of static ring seals does not contact the disk circumferential surface.

US Pat. No. 11,111,802

SEAL FOR A GAS TURBINE ENGINE

RAYTHEON TECHNOLOGIES COR...


1. A component for a gas turbine engine comprising:a first platform having a first pair of circumferential surfaces that are circumferentially opposing, a first axially aft surface, and a surface defining a core gas flow path;
a first axially extending seal slot located in each of the first pair of circumferential surfaces and the first axially aft surface; and
a first cover plate attached to the first axially aft surface enclosing at least a portion of the first axially extending seal slot located in each of the first pair of circumferential surfaces, wherein a radial direction and a circumferential direction are defined with respect to a central longitudinal axis of the gas turbine engine.

US Pat. No. 11,111,801

TURBINE VANE WITH PLATFORM PAD

Raytheon Technologies Cor...


1. A mid-turbine frame comprising:a plurality of vanes each including an airfoil extending between a radially outer platform and a radially inner platform;
said radially outer platform having nominally radially thinner portions, and a pad defining a radially thicker portion, with said pad having a radial thickness that is greater than a thickness of said nominally radially thinner portions and said pad surrounding an outer periphery of said airfoils on a radially outer side of said radially outer platform, and said pad having a varying radial thickness; and
said nominally radially thinner portions being circumferentially intermediate adjacent airfoils of the plurality of vanes; and
wherein said pad having a radially thickest portion forward of a leading edge of said airfoil, and radially thinner portions extending toward a trailing edge of said airfoil.

US Pat. No. 11,111,799

METHOD FOR DISASSEMBLING/ASSEMBLING GAS TURBINE, SEAL PLATE ASSEMBLY, AND GAS TURBINE ROTOR

MITSUBISHI POWER, LTD., ...


20. A seal plate assembly for a blade of a gas turbine, comprising:a seal plate configured to be disposed on a first side of a rotor disc in an axial direction of the rotor disc; and
a seal plate restraint part for restricting movement of the seal plate relative to the rotor disc in a radial direction of the rotor disc, the seal plate restraint part being disposed entirely on the first side of the rotor,
wherein the seal plate restraint part is configured to be operable from a second side of the rotor disc that is opposite to the first side in the axial direction so as to be switchable between a seal plate restraint state where at least a part of the seal plate restraint part protrudes toward the second side in the axial direction from the seal plate and thereby restricts movement of the seal plate in the radial direction, and a seal plate non-restraint state where movement of the seal plate in the radial direction is not restricted.

US Pat. No. 11,111,798

TURBOMACHINE BLADE AND METHOD FOR THE MANUFACTURE OF SAME

SAFRAN, Paris (FR)


1. Blade of a turbomachine comprising:a blade body of composite material having a fiber reinforcement having a three-dimensional weave and densified by a matrix, the fiber reinforcement having a longitudinal direction corresponding to the longitudinal direction of the blade and having, in this longitudinal direction, a first part extended by a second, end, part, the second part comprising two segments separated from each other from the junction between the first and second parts to a free end of the fiber reinforcement; and
an insert having a pi-shaped section, the insert having a platform part extending perpendicularly to the longitudinal direction, and two longitudinal flanges separated from each other by a space, the platform part comprising a housing delimited by a bottom wall and a rim, the bottom wall including an opening communicating with the space between the two flanges,
the first part of the fiber reinforcement of the blade body being clamped between the two flanges of the insert, the segments of the second part of the fiber reinforcement being folded on either side of the first part against the bottom wall of the housing of the insert.

US Pat. No. 11,111,797

MOLYBDENUM-SILICON-BORON WITH NOBLE METAL BARRIER LAYER

RAYTHEON TECHNOLOGIES COR...


1. An article comprising:a substrate formed of a molybdenum-based alloy;
a barrier layer immediately adjacent to and contiguous with the substrate, the barrier layer formed of at least one noble metal, and
a topcoat disposed on the barrier layer, wherein the topcoat includes a silica material and molybdenum silicide.

US Pat. No. 11,111,796

TURBINE SHROUD ASSEMBLY WITH DOVETAIL RETENTION SYSTEM

Rolls-Royce North America...


1. A turbine shroud assembly for use with a gas turbine engine, the turbine shroud assembly comprisinga turbine outer case including an outer wall that extends circumferentially about an axis and a mount flange that extends radially away from the outer wall,
a connection flange that extends radially inward relative to the outer wall,
a blade track segment made of ceramic matrix composite materials, the blade track segment including an arcuate runner that extends circumferentially partway around the axis and an attachment feature that extends radially outward from the runner, the attachment feature includes radially inward facing angled load surfaces and a radially outward facing locating surface, and
a carrier assembly made of metallic material and arranged circumferentially partway around the axis, the carrier assembly comprising a forward carrier segment and an aft carrier segment, the forward carrier segment including a forward radially extending flange that couples with the connection flange and a forward load carrying portion that extends axially aft from an inner end of the forward extending flange and engages with a first of the angled load surfaces of the blade track segment, the aft carrier segment including a carrier mount that couples with the connection flange, an aft flange that extends radially inward, and an aft load carrying portion that extends axially forward from an inner end of the aft flange and engages with a second of the angled load surfaces of the blade track segment,
wherein the forward carrier segment and aft carrier segment are pressed axially towards each other causing forward and aft load carrying portions to push the angled load surfaces radially outward resulting in the blade track segment being located relative to the carrier assembly.

US Pat. No. 11,111,795

TURBINE ROTOR AIRFOIL AND CORRESPONDING METHOD FOR REDUCING PRESSURE LOSS IN A CAVITY WITHIN A BLADE


1. A turbine rotor airfoil comprising:a leading edge and a trailing edge joined by a pressure side and a suction side, a tip end, and a radially opposite root end, wherein the tip end designates a radially outward position and the root end designates a radially inward position; and
at least two multiple pass serpentine flow cooling circuits with radial coolant cavities formed within the airfoil to provide cooling for the airfoil comprising;a leading edge circuit comprising forward direction cavities comprising at least a first forward direction cavity located within the airfoil and a second forward direction cavity forward along a chordal axis from the first forward direction cavity, wherein the leading edge circuit flows forward with at least two substantially 180-degree turns at the tip end and the root end of the airfoil providing at least a penultimate forward direction cavity and a last forward direction cavity, wherein the last forward direction cavity is located along the leading edge of the airfoil; and
a trailing edge circuit comprising aft direction cavities comprising at least a first aft direction cavity located aft of the first forward direction cavity, wherein the trailing edge circuit flows aft with at least two substantially 180-degree turns at the tip end and the root end of the airfoil providing at least a penultimate aft direction cavity (46d) and a last aft direction cavity, wherein the last aft direction cavity is located along the trailing edge of the airfoil;

wherein the 180-degree turn into an entrance of a second radial coolant cavity from an exit of a first radial coolant cavity narrows from a consistent cavity width and then expands out back to the consistent cavity width downstream,
wherein a diameter of a space between the first radial coolant cavities and the second radial coolant cavity expands at the entrance of the second radial coolant cavity and then reduces to a consistent diameter of space that is maintained between the first radial coolant cavity and the second radial coolant cavity the rest of the first radial coolant cavity and the second radial coolant cavity path.

US Pat. No. 11,111,794

FEATHER SEALS WITH LEAKAGE METERING

UNITED TECHNOLOGIES CORPO...


1. A seal assembly for a gas turbine engine comprises: a first feather seal comprising a first cooling hole extending through the first feather seal: and a second feather seal adjacent to the first feather seal, wherein the second feather seal comprises a second cooling hole extending through the second feather seal, a third cooling hole extending through the second feather seal, and a fourth cooling hole extending through the second feather seal, wherein the first cooling hole extends over at least a portion of the second, third, and fourth cooling holes, and wherein a perimeter of the first cooling hole is larger than a perimeter of each of the second, third, and fourth cooling holes.

US Pat. No. 11,111,793

TURBOMACHINERY

ROLLS-ROYCE plc, London ...


1. A turbomachine configured to compress supercritical carbon dioxide, the turbomachine comprising, in fluid flow series:an inlet;
an inducerless radial impeller having a plurality of backswept blades each of which have a blade exit angle (?2) of from ?50 to ?70 degrees;
a fully vaneless diffuser; and
a volute comprising a tongue and having a flow area at the tongue equal to that of the diffuser,
wherein a hub hade angle of the impeller at an entry thereto (?1hub) is from 50 to 70 degrees,
wherein the hub hade angle is defined by an axial line of the inlet and a tangent line that is tangent to a point of the impeller where the blade of the impeller begins,
wherein the inlet is radially flared at a downstream end of the inlet adjacent to the impeller to induce a radial component in flow prior to an entry to the impeller,
wherein only the diffuser is located between the impeller and the volute,
wherein the plurality of blades comprises:a set of main blades; and
a set of splitter blades,

wherein a meridional chord length of the splitter blades (cs) is 70 percent of a meridional chord length of the main blades (cm), and
wherein a radius of the diffuser (r3) is from 1.2 to 1.8 times larger than a radius of the impeller (r2).

US Pat. No. 11,111,792

TURBOMACHINERY

ROLLS-ROYCE plc, London ...


1. A turbomachine configured to compress supercritical carbon dioxide, the turbomachine comprising, in fluid flow series:an inlet;
an inducerless radial impeller having a plurality of blades; and
a fully vaneless diffuser;
wherein a hub hade angle of the impeller at an entry thereto (?1hub) is from 50 to 70 degrees, and
wherein the hub hade angle is defined by an axial line of the inlet and a tangent line that is tangent to a point of the impeller where the blade of the impeller begins.

US Pat. No. 11,111,791

GAS TURBINE ENGINE HAVING FAN DIAMETER RATIO

ROLLS-ROYCE plc, London ...


1. A gas turbine engine for an aircraft comprising:an engine core comprising:a compressor system with compressor blades comprising respective aerofoils, the compressor system comprising a first, lower pressure, compressor, and a second, higher pressure, compressor; and
an outer core casing surrounding the compressor system and comprising:a first flange connection arranged to allow separation of the outer core casing at an axial position of the first flange connection, the first flange connection having a first flange radius, the first flange connection being the first flange connection that is downstream of an axial position defined by an axial midpoint between a mid-span axial location on a trailing edge of a most downstream aerofoil of the first compressor and a mid-span axial location on a leading edge of a most upstream aerofoil of the second compressor; and
a fan located upstream of the engine core, the fan comprising a plurality of fan blades and having a fan diameter between 330 cm and 380 cm;


wherein a fan diameter ratio of:





is equal to or greater than 0.125.

US Pat. No. 11,111,790

METHOD OF UPGRADING A MODULAR GAS TURBINE ENGINE

ROLLS-ROYCE plc, London ...


1. A method of upgrading a modular gas turbine engine, wherein the gas turbine engine comprises: a first fan module comprising a fan having plurality of fan blades; a first engine core module including an engine core and a gearbox arranged to provide drive to the fan; and a first fan case module comprising a fan case arranged to enclose the fan blades, the method including the steps of:disassembling the gas turbine engine,
replacing a one of the first fan module, first engine core module or first fan case module with a replacement fan module, a replacement engine core module or a replacement fan case module; and
reassembling the gas turbine engine using the replacement module, wherein the replacement module is compatible with the others of the first fan module, first engine core module or first fan case module;
wherein the replacement module is designed to different parameters to the one of the first fan module, first engine core module or first fan case module, such that the replacement module alters the performance of the engine, and
wherein replacing the one of the first modules comprises replacing one or more component parts of a different fan module, engine core module or fan case module having the same design parameters as the one of the first modules, to form the replacement module.

US Pat. No. 11,111,789

VANE-TYPE AIR MOTOR

Shuiming Gong, Beijing (...


1. A vane-type compressed air motor, comprising:a casing with an air inlet and an air outlet;
a rotor;
a plurality of vanes, the plurality of vanes being inserted into the rotor to form a rotating body rotatable around a central axis and the rotating body being disposed inside the casing;
vane stoppers respectively disposed on two axial sides of each of the plurality of vanes adjacent to a radially inner end of each of the plurality of vanes;
an inner retainer ring disposed on an axial side of the rotor while being arranged eccentrically relative to the central axis of the rotating body, wherein an outer surface of the inner retainer ring pushes the vane stopper on a corresponding axial side of each of the plurality of vanes towards a direction away from the central axis of the rotating body;
bearing rings respectively disposed on two axial sides of the rotor to restrict the movement of vane stoppers towards a direction away from the central axis of the rotating body; and
a kit composed of two covers respectively disposed at two axial sides of the rotor, each of the two covers being provided with guide grooves on a side facing the rotating body and the plurality of vanes being movable within the guide grooves,
wherein axially extending air grooves are formed on both side surfaces of each of the plurality of vanes adjacent to a radially outer end of each of the plurality of vanes, the side surfaces including an upstream side surface and a downstream side surface in the rotation direction of the rotating body.

US Pat. No. 11,111,788

POSITIVE DISPLACEMENT ROTARY DEVICES

MALLEN RESEARCH LIMITED P...


1. A first rotor, the first rotor being configured to rotate adjacent to a second rotor that comprises a circular main body with a first axis of rotation and a vane extending radially from the main body, the vane having a leading edge and a trailing edge when the second rotor rotates in the clockwise direction and the first rotor comprising:a substantially circular first curved surface with its center at a second axis of rotation, the first curved surface having a first radius;
a vane-receiving groove that is configured to receive the vane therein; and
second and third curved surfaces disposed on opposing sides of the vane-receiving groove, the second and third curved surfaces intersecting the first curve but having a different radius than the first radius,
wherein the substantially circular first curved surface is dimensioned to maintain substantially the same distance from the main body of the second rotor when adjacent to the main body of the second rotor to create a non-contact seal therebetween, the second curved surface is dimensioned to maintain substantially the same distance from the leading edge of the vane when adjacent to the vane to create a non-contact seal therebetween, the third curved surface is dimensioned to maintain substantially the same distance from the trailing edge of the vane when adjacent to the vane to create a non-contact seal therebetween, and the vane-receiving groove is dimensioned to maintain substantially the same distance from a distal end of the leading edge of the vane as the vane moves into the vane-receiving groove to create a non-contact seal therebetween and to maintain substantially the same distance from a distal end of the trailing edge of the vane as the vane moves out of the vane-receiving groove to create a non-contact seal therebetween, the non-contact seal being provide to prevent leakage between the first rotor and the second rotor when the first rotor and the second rotor rotate relative to one another.

US Pat. No. 11,111,787

METHOD AND AN APPARATUS FOR CREATING A VOID FOR UNDERGROUND MINING

Moore Management Company ...


2. A method for creating a void, for underground mining, the method comprising the following steps:assembling at least two or more modules of formwork comprising having a body portion made of a lightweight low-density material and at least one fastening or anchor point provided on at least one end of the body portion to be used to join and secure adjacent modules of formwork together to achieve a desired length or configuration, or install the formwork, and provide a low-density fill or combination of void and low-density fill which together to form an assembled length of formwork for an apparatus of a desired length required for an open stope;
installing the apparatus in an open stope and securing it in place prior to the stope being backfilled, wherein the apparatus creates a void or low-density fill without requiring inflation or filling of the formwork into which fragmented ore can expand during at least one subsequent blasting operation for a second or subsequent panel; and
maintaining the configuration of the modules of formwork until blasting operations occur whereupon the void or low-density fill is caused to collapse to accommodate fragmented ore generated during the at least one subsequent blasting.

US Pat. No. 11,111,785

METHOD AND DEVICE FOR ACQUIRING THREE-DIMENSIONAL COORDINATES OF ORE BASED ON MINING PROCESS

Wuyi University, Jiangme...


1. A method for acquiring three-dimensional coordinates of ore based on mining process, comprising:acquiring an ore image;
processing the ore image by using a YOLACT algorithm and a NMS algorithm to obtain a prediction mask map;
drawing a rectangular box according to the prediction mask map and obtaining a two-dimensional coordinate of ore through a center point of the rectangular box;
acquiring a color map and an infrared depth map;
transmitting the color map into a pre-training model for recognition to obtain object contours;
selecting a contour of a target object, calculating the sum of coordinates of X axis and Y axis of all points on the contour, and then dividing the sum of the coordinates by the number of the points on the contour to obtain a gravity center of the target object;
calculating a distance between the gravity center of the target object and an origin to obtain a polar coordinate of the target object, and aligning a center point of the color map and a center point of the infrared depth map through affine transformation to obtain a scale of the color map in the infrared depth map;
multiplying a length of the polar coordinate by the scale to obtain a point in the infrared depth map corresponding to a point in the color map, thereby obtaining depth information of the point in the infrared depth map; and
combining the two-dimensional coordinate with the depth information to obtain a three-dimensional coordinate of the ore.

US Pat. No. 11,111,784

SYSTEM AND METHOD FOR DETERMINING BOTTOMHOLE CONDITIONS DURING FLOWBACK OPERATIONS OF A SHALE RESERVOIR

Schlumberger Technology C...


1. A method of determining at least one bottomhole condition in a well, the method comprising:measuring fluid properties, via one or more sensors, of fluids produced at a surface-location of the well, wherein the well traverses a hydraulically fractured reservoir, wherein the measured fluid properties include flow rates of different fluid phases that are part of the fluids, and wherein the different fluid phases are selected from the group including an oil phase, a gas phase, a water phase, and a solid phase;
using a transient fluid flow simulator to determine composition and properties of the fluids in the well between a surface-location of the well and at least one bottomhole-location of the well based on the measured fluid properties and based on calculations involving data characterizing mineralogy of the hydraulically fractured reservoir;
calculating at least one bottomhole condition in the well based on the determined composition and properties of the fluids in the well between the surface-location and the at least one bottomhole-location of the well; and
controlling a flowback operation in the well based at least in part on the at least one bottomhole condition; wherein controlling the flowback operation in the well further comprises:calculating a drawdown pressure in the well at a particular time, wherein the drawdown pressure in the well is a function of a rate of a bottomhole pressure change and a bottomhole fluid rate;
determining when the calculated drawdown pressure is outside a particular safe zone defined by upper and lower limits on drawdown pressure as a function of time; and
adjusting a surface-located choke in response to determining the calculated drawdown pressure is outside the particular safe zone.


US Pat. No. 11,111,783

ESTIMATING FORMATION PROPERTIES FROM DRILL BIT MOTION

Halliburton Energy Servic...


1. A method for formation property prediction, comprising:drilling a borehole into a formation using a drill bit, wherein the drill bit comprises a shank, a bit body, and a through bore that traverses through the shank and the bit body:
measuring one or more parameters of drill bit motion with one or more sensors disposed on an outer surface and within the shank or the bit body, wherein the one or more sensors are connected to a sensor subassembly by one or more channels that are inside the bit body, wherein the sensor subassembly is attached to an inner surface of the through bore adjacent to the one or more sensors; and
inputting the one or more para meters of the drill bit motion into a formation property prediction model which outputs one or more properties of the formation.

US Pat. No. 11,111,782

SYSTEM AND METHOD FOR OILFIELD MANAGEMENT

Xinhua Li, Dongying (CN)...


1. An oilfield management system, comprising:one or more devices, wherein the one or more devices are installed on one or more oil wells respectively for measuring working conditions of the one or more oil wells, and the working conditions at least comprise indicator diagram of the one or more oil wells;
one or more remote transmission units, wherein at least one remote transmission unit receives the working conditions of the one or more oil wells from the one or more devices;
a wireless base station; and
a server, wherein the server determines status of the one or more oil wells according to the working conditions of the one or more oil wells received from the one or more remote transmission units, and the one or more oil wells are managed according to the status of the one or more oil wells;
wherein the wireless base station transmits the working conditions received from the one or more remote transmission units to the server via wired or wireless means,
each of the one or more remote transmission units comprises a first wireless transmission module and a second wireless transmission module,
wherein the first wireless transmission module communicates with the one or more devices for measuring working condition of the oil well, and
each of the one or more remote transmission units communicates with the wireless base station via the second wireless transmission module, and transmits the working conditions to the wireless base station.

US Pat. No. 11,111,781

INSTRUMENTING UNCONVENTIONAL WELLS FOR REAL TIME IN SITU FRAC HEIGHT DETERMINATION, RESERVOIR FLUID MOVEMENT, PRODUCTION MONITORING AND WELL INTEGRITY IN FRACTURED STAGES

Tubel LLC, The Woodlands...


1. A method of deploying sensors throughout a set of vertical and horizontal sections of unconventional wells as part of a system to be deployed in a well deployed in a reservoir as part of the casing string to provide information directly from the well that is being fractured including data from within stages of the horizontal section of the well for a predetermined set of well related evaluations, the system comprising a plurality of downhole tools configured to be placed in the horizontal sections and vertical sections of the unconventional well where each downhole tool is operative to acquire data downhole related to a predetermined condition characteristic downhole and each downhole tool comprises a mandrel adapted to be disposed downhole, the mandrel defining a housing and comprising a set of extendable arms; a first sensor mounted on a first predetermined subset of the set of extendable arms; a second sensor mounted on a second predetermined subset of the set of extendable arms, the second sensor comprising a strain sensor; a navigation package configured to determine a location of the strain sensor in the well; a real time communications short hop data communicator; a data communicator operatively in communication with the first sensor, the second sensor, the navigation package, and the real time communications short hop data communicator; and a downhole power source operatively in communication with the short hop data communicator and the data communicator; the system further comprising a surface system configured to collect and process data obtained in the well; the method comprising:a) deploying a first downhole tool in the horizontal section;
b) deploying a second downhole tool in the vertical section;
c) extending a predetermined set of the extendable arms to place a predetermined set of sensors into physical contact with a reservoir associated with the well;
d) enabling the sensors in the vertical and horizontal sections of the well to obtain a predetermined set of well data;
e) communicating the well data from the first downhole tool and the second downhole tool to the surface system;
f) collecting the communicated well data at the surface system; and
g) using the surface system to process the collected well data from downhole to perform a predetermined data analysis.

US Pat. No. 11,111,780

DISTRIBUTED ACOUSTIC SENSING SYSTEM WITH PHASE MODULATOR FOR MITIGATING FADED CHANNELS

Halliburton Energy Servic...


1. A method comprising:determining a first pulse and a second pulse of an optical signal;
modulating, by a phase modulator, the first pulse to have a different wavelength than the second pulse;
launching the first pulse into a sensing fiber that extends into a wellbore; receiving a first backscattered signal from the sensing fiber in response to launching the first pulse into the sensing fiber;
launching the second pulse into the sensing fiber;
receiving a second backscattered signal from the sensing fiber in response to launching the second pulse into the sensing fiber; and
determining data about an environment of the wellbore by processing the first backscattered signal and the second backscattered signal to compensate for fading in the first backscattered signal or the second backscattered signal, further comprising:
determining first data about the environment of the wellbore from the first backscattered signal;
analyzing the first data to determine a first portion of the first data that experienced fading that exceeds a threshold value and to determine that the first portion describes a segment of the environment of the wellbore;
determining second data about the environment of the wellbore from the second backscattered signal;
analyzing the second data to determine a second portion of the second data describes the segment of the environment of the wellbore; and
determining the data about the environment of the wellbore by combining the first data and the second data such that fading is mitigated by using the second portion to describe the segment rather than the first portion.

US Pat. No. 11,111,779

MAGNETIC POSITION INDICATOR

Halliburton Energy Servic...


15. A method for determining an indexing position of a downhole tool positioned at a surface of a well site:determining a magnetic field along a length of an outer tubing of the downhole tool;
identifying a reference point on a sliding sleeve corresponding to a mid-point between two opposing magnetic fields, wherein the sliding sleeve is positioned within an inner region of the outer tubing; and
determining a distance between the reference point on the sliding sleeve and a fixed point on the outer tubing of the downhole tool, wherein the distance between the reference point and the fixed point corresponds to an indexing position of the downhole tool.

US Pat. No. 11,111,778

INJECTION WELLS

GEOMEC ENGINEERING LTD., ...


1. A method for a well injection program, comprising the steps:(a) injecting a fluid into the well;
(b) varying the flow rate of injected fluid;
(c) measuring the pressure, temperature and flow rate at the well as the flow rate is varied to provide measured data;
(d) fitting a first model to the measured data to estimate one or more thermal stress characteristics of the well;
(e) inputting the one or more thermal stress characteristics into a second model;
(f) determining injection parameters from the second model; and
further including the step of measuring pressure for different temperatures of injected fluid.

US Pat. No. 11,111,777

APPARATUSES AND METHODS FOR SENSING TEMPERATURE ALONG A WELLBORE USING SEMICONDUCTOR ELEMENTS

METROL TECHNOLOGY LIMITED...


1. An apparatus for use in sensing temperature in a wellbore, comprising:a metallic tubing comprising a plurality of temperature sensor modules provided at locations along the inside of the metallic tubing, said temperature sensor modules comprising temperature sensors provided at least in part by at least one semiconductor element having electrical properties that vary with temperature;
an electrical network configured to electrically connect to the semiconductor elements to allow measuring of the respective electrical properties of the semiconductor elements to infer a thermal characteristic of the semiconductor element; and
at least one control module electrically connected to multiple temperature sensor modules, via the electrical network, and configured to receive and process an electrical signal associated with the temperature sensor modules to enable inference of the temperature of the semiconductor elements and the environment to which the metallic tubing is exposed at the location of the semiconductor elements,

wherein the at least one control module further comprises a common reference signal generator to generate a common reference for comparison with measurements of at least one of a voltage and current of at least two of the temperature sensor modules.

US Pat. No. 11,111,776

MULTIPLE SURFACE EXCITATION METHOD FOR DETERMINING A LOCATION OF DRILLING OPERATIONS TO EXISTING WELLS

Halliburton Energy Servic...


1. A method for determining a position of a second production wellbore, comprising:inducing a first current into a first conductive member with a first source, wherein the first conductive member is disposed in a first injection wellbore;
emitting a first magnetic field into a formation;
inducing a second current into a second conductive member with a second source, wherein the second conductive member is disposed in a first production wellbore;
emitting a second magnetic field into the formation;
inducing a third current into the first conductive member and the second conductive member at the same time with a third source by connecting the third source to both the first conductive member and the second conductive member in parallel;
emitting a third magnetic field into the formation;
disposing an electromagnetic sensor system into the second production wellbore, wherein the electromagnetic sensor system comprises one or more sensors;
recording the first magnetic field with the one or more sensors from the formation;
recording the second magnetic field with the one or more sensors from the formation; and
recording the third magnetic field with the one or more sensors form the formation.

US Pat. No. 11,111,775

WEAR SLEEVE

Halliburton Energy Servic...


1. An apparatus comprising:a wearable sleeve to protect a vulnerable portion of a downhole tool, the wearable sleeve comprising:a first material layer, wherein the first material layer is made from a first material selected from a group consisting of chopped fiberglass filled rubber, nitrile butadiene rubber, and fluoroelastomers; and
a second material layer overlaid on the first material layer, wherein the second material layer is made from a second material selected from a group consisting of polyparaphenylene terephthalamide, polyester, and fiberglass;
wherein the first material layer is made from the first material that is different from the second material used to make the second material layer;
an axial axis;
a longitudinal axis substantially perpendicular to the axial axis;
a first wearable sleeve end; and
a second wearable sleeve end opposite the first wearable sleeve end;

a first ring coupled to the first wearable sleeve end; and
a second ring coupled to the second wearable sleeve end;
wherein the first ring and the second ring have the same expansion properties as the downhole tool.

US Pat. No. 11,111,774

SENSOR TRANSPORTATION APPARATUS

PETROMAC IP LIMITED, Ham...


1. A sensor transportation apparatus for conveying a sensor assembly through a wellbore, the sensor transportation apparatus comprising:at least one engagement structure to connect the sensor transportation apparatus to the sensor assembly,
at least one axle, at least one wheel, a bearing connected to the axle between the wheel and the engagement structure, a shaft seal to prevent or reduce debris from the wellbore entering the bearing, and
a lubrication delivery system to provide a lubricant to the bearing at a pressure which is greater than an ambient wellbore pressure, wherein the lubrication system comprises:
a spring bellows formation, and the apparatus comprising a housing to contain the lubricant, the housing in fluid communication with the bearing, the spring bellows formation sealingly mounted to the housing with at least a portion of the spring bellows formation received within the housing to provide a bias force so that the pressure in the lubricant is greater than the ambient wellbore pressure of a wellbore fluid surrounding the device;
a flexible member, an outer surface of the flexible member in communication with wellbore fluids surrounding the apparatus in use; and
a liquid contained in a sealed chamber defined, at least in part, by the interior of the spring bellows formation and an inner surface of the flexible member.

US Pat. No. 11,111,773

SYSTEMS AND METHODS FOR TESTING WELLBORE COMPLETION SYSTEMS

Saudi Arabian Oil Company...


11. A method for testing a wellbore tubular system, comprising:positioning a primary wellbore tubular that comprises at least one open end and an inner volume on at least one fixed mount positioned to support the primary wellbore tubular on a support surface in a fixed position against movement relative to the support surface;
positioning at least one secondary wellbore tubular concentrically or eccentrically within at least a portion of the inner volume of the primary wellbore tubular;
coupling the at least one secondary wellbore tubular on at least one adjustable stand positioned to support the at least one secondary wellbore tubular on the support surface;
running a logging tool within an inner volume of the at least one secondary wellbore tubular;
detecting at least one defect of at least one of the primary wellbore tubular or the at least one secondary wellbore tubular; and
moving the at least one secondary wellbore tubular within the inner volume of the primary wellbore tubular on a roller of the at least one adjustable stand that is in contact with the support surface.

US Pat. No. 11,111,772

BULK MODULUS MONITORING SYSTEM

Halliburton Energy Servic...


1. A monitoring system for a pump, comprising:a strain gauge positionable on a fluid end of the pump to measure strain in a chamber of the pump and generate a strain signal representing the strain in the chamber, the strain signal being useable in determining actuation points for valves in the chamber; and
a computing device couplable to the strain gauge, the computing device including a processing device and a memory device, the memory device including instructions that are executable by the processing device for causing the processing device to:receive, from memory, a predefined pressure value for an internal pressure of the chamber;
determine a change in the internal pressure in the chamber during an amount of time between the actuation points for the valves by correlating (i) a portion of the strain signal corresponding to the amount of time between the actuation points with (ii) the predefined pressure value; and
determine a bulk modulus of fluid isolated in the chamber during the amount of time between the actuation points for the valves based on the change in the internal pressure in the chamber.


US Pat. No. 11,111,771

METHODS OF DRILLING A WELLBORE WITHIN A SUBSURFACE REGION AND DRILLING CONTROL SYSTEMS THAT PERFORM THE METHODS

ExxonMobil Upstream Resea...


1. A method of drilling a wellbore within a subsurface region and with a drill string of a drilling rig, the method comprising:accessing an objective map that describes at least one estimated drilling performance indicator of the drilling rig as a function of at least one independent operational parameter of the drilling rig, wherein the accessing the objective map includes drilling, with the drill string, an initial portion of the wellbore, wherein the drilling the initial portion of the wellbore includes:(i) varying the at least one independent operational parameter over a plurality of independent operational parameter values;
(ii) collecting the actual value of the at least one drilling performance indicator for each of the plurality of independent operational parameter values; and
(iii) generating the objective map based upon the actual value of the at least one drilling performance indicator for each of the plurality of independent operational parameter values;

calculating a plurality of critical points of the objective map;
scoring each critical point of the plurality of critical points;
selecting a selected critical point of the plurality of critical points based, at least in part, on the scoring, wherein the selected critical point describes an estimated value of the at least one estimated drilling performance indicator for a selected value of the at least one independent operational parameter;
operating the drilling rig at the selected value of the at least one independent operational parameter;
during the operating the drilling rig, determining an actual value of at least one drilling performance indicator;
updating the objective map to generate an updated objective map based upon the actual value of the at least one drilling performance indicator at the selected value of the at least one independent operational parameter; and
repeating, with the updated objective map, at least the calculating the plurality of critical points, the scoring each critical point, the selecting the selected critical point, the operating the drilling rig at the selected value of the at least one independent operational parameter, the determining the actual value of the at least one drilling performance indicator, and the updating the objective map a plurality of times to iteratively improve an estimate of the at least one drilling performance indicator provided by the updated objective map.

US Pat. No. 11,111,770

AUTOMATED STEERING USING OPERATING CONSTRAINTS

NABORS DRILLING TECHNOLOG...


1. A method of slide drilling which comprises:determining, by a surface steerable system and based on drilling operation information including feedback information, a location of a bottom hole assembly (“BHA”) in a wellbore;
determining, by the surface steerable system and using the location of the BHA, a first projected location of the BHA at a first projected distance;
determining if the first projected location is within a first location-tolerance window associated with the first projected distance;
in response to determining that the first projected location is not within the first location-tolerance window associated with the first projected distance, determining, by the surface steerable system and using the location of the BHA, a second projected location of the BHA at a second projected distance;
wherein the first projected distance is less than the second projected distance;
in response to determining that the first projected location is not within the first location-tolerance window associated with the first projected distance, determining if the second projected location is within a second location-tolerance window associated with the second projected distance;
creating using the surface steerable system, proposed steering instructions that result in a proposed, projected BHA location being within the second location-tolerance window that is associated with the second projected distance;
wherein creating the proposed steering instructions is in response to the first projected location not being within the first location-tolerance window and to the second projected location not being within the second location-tolerance window;
determining whether the proposed steering instructions comply with a plurality of operating parameters, wherein the plurality of operating parameters comprises a maximum slide distance;
altering, by the surface steerable system, when the proposed steering instructions do not comply with the plurality of operating parameters, the proposed steering instructions to comply with the plurality of operating parameters; and
implementing the altered steering instructions, using the surface steerable system, to drill a wellbore.

US Pat. No. 11,111,769

PROCESS AND SYSTEM FOR ENHANCED DEPTH PENETRATION OF AN ENERGY SOURCE


1. A method in a subsurface formation, comprising:a) determining a target frequency of the formation, wherein the step of determining the target frequency of the formation comprises:i) obtaining a sample of the formation;
ii) applying mechanical stimulation energy toward the sample at a testing frequency;
iii) measuring an impedance of the sample at the testing frequency;
iv) determining if the impedance of the sample is at a minimum;
v) altering the testing frequency if the impedance of the sample is not at the minimum;
vi) repeating steps ii)-v) until the impedance of the sample is at the minimum; and
vii) recording as the target frequency the testing frequency when the impedance of the sample is at the minimum;

b) deploying sensors configured to measure a depth of penetration of electromagnetic radiation in the formation;
c) mechanically stimulating the formation at the target frequency to induce mechanical stress in the formation;
d) directing the electromagnetic radiation at an electromagnetic frequency towards the formation while or after mechanically stimulating the formation at the target frequency in step c);
e) using the sensors to measure the depth of penetration of the electromagnetic radiation applied in step d);
f) adjusting the target frequency of the mechanical stimulation or the electromagnetic frequency based on the measurement made in step e).

US Pat. No. 11,111,767

APPARATUS, SYSTEMS, AND METHODS FOR FRACTURING A GEOLOGICAL FORMATION

THE ANDERS FAMILY LIVING ...


15. A method of kinetically fracking a subterranean structure, the method comprising:(a) providing a fracking string inside a perforated wellbore liner having an interior cavity, the fracking string having an interior channel and spaced-apart apertures connecting the interior string channel and the liner cavity;
(b) providing a fracking fluid at a pressure of about 8,000 psi to about 15,000 psi;
(c) accelerating the fracking fluid in the interior channel in a downhole direction to a velocity of from about 100 to about 150 feet per second; and
(d) abruptly decelerating fracking fluid flow.

US Pat. No. 11,111,766

METHODS OF IMPROVING HYDRAULIC FRACTURE NETWORK

Baker Hughes Holdings LLC...


1. A method of creating or enhancing the complexity of a fracture network in a subterranean formation penetrated by a well comprising:(a) creating or enlarging a first fracture by pumping into the well a fracturing fluid under pressure;
(b) comparing the reading of an operational parameter after step (a) with a pre-determined value of the operational parameter, wherein the operational parameter is:(i) the injection rate of the fracturing fluid;
(ii) the density of the fracturing fluid; or
(iii) the bottomhole pressure in the well;

(c) determining stress in the well based on the comparison between the reading of the operational parameter after step (a) and the pre-determined value, and then altering stress in the well by flow of a diverting fluid into the well and into the first fracture, the diverting fluid comprising a diverting agent or a slug containing a diverting agent; and
(d) pumping another fluid into the well and into a second fracture which is less conductive than the first fracture.

US Pat. No. 11,111,764

WELLBORE ANNULAR SAFETY VALVE AND METHOD

SCHLUMBERGER TECHNOLOGY C...


1. A method, comprising:deploying a tubing having a tubing bore in a casing in a wellbore, the tubing comprising a cup packer forming an annular barrier across a tubing-casing annulus separating the tubing-casing annulus into an upper annulus and a lower annulus, the cup packer having a fluid conduit extending substantially parallel to the tubing bore, and a barrier valve coupled with the fluid conduit to permit one-way fluid flow from the upper annulus to the lower annulus;
communicating a fluid from the upper annulus through the barrier valve to the lower annulus; and
closing the barrier valve in response to pressure in the upper annulus being less than pressure in the lower annulus,
wherein the barrier valve is located in a side pocket of a side pocket mandrel integrated in the tubing,
wherein the cup packer is disposed about a feed-through mandrel having a first side and a second side, the first side being thicker than the second side, and
wherein the side pocket mandrel and the annular barrier are aligned such that the side pocket and the first side of the feed-through mandrel are aligned longitudinally.

US Pat. No. 11,111,763

TEMPERATURE RESPONSIVE FRACTURING


18. A temperature responsive completion device configured to be part of a wellbore casing string, the device comprising a trigger circuit configured to establish fluid communication through a casing of the well by detonating an explosive responsive to a downhole temperature above a first threshold following a first predetermined number of downhole temperature cycles having a first predetermined time period, the first predetermined number of temperature cycles being caused by the pumping of one or more frac stages that lower the downhole temperature; and wherein the explosive is a shaped charge.

US Pat. No. 11,111,762

METHOD AND DEVICE FOR MULTILATERAL SEALED JUNCTIONS

Halliburton Energy Servic...


15. A method of sealing a junction between adjacent wellbores, comprising:placing a whip stock in a parent wellbore; and
using the whip stock to place a dissolvable sealing joint into a liner in a secondary wellbore, the dissolvable sealing joint being connected to a packer assembly and comprising:a junction subassembly having upper and lower portions and a fluid port located therein, the lower portion having a no-go shoulder defining a tapered end; and
a sealing member located about the tapered end and adjacent the no-go shoulder, and wherein the junction subassembly is comprised of a dissolvable material;

pumping an isolation fluid through the fluid port to seal a junction region located adjacent the parent and secondary wellbores;
removing the packer assembly and at least partially dissolving the junction subassembly; and
removing the whip stock.

US Pat. No. 11,111,761

DRILLING RIG WITH ATTACHED LIGHTING SYSTEM AND METHOD

APOLLO ENERGY SERVICES CO...


1. A method of providing lighting to a drilling rig site comprising, attaching at least one light fixture directly to the crown of a drilling rig on each of at least two sides of the crown, wherein the light fixture contains a fixed or removable light fixture attachment connecting the at least one light fixture to the crown, and wherein the drilling rig includes secondary containment.

US Pat. No. 11,111,760

VECTORED ANNULAR WELLBORE CLEANING SYSTEM

BAKER HUGHES OILFIELD OPE...


1. A vectored annular cleaning system (VACS) comprising:a tool body including a first end, a second end, an outer surface and an inner surface defining an internal bore;
a valve system arranged in the internal bore, the valve system including a valve and an actuator member including a central passage, the actuator member including a first portion extending from the valve toward the first end, a second portion extending from the valve toward the second end, and a linking member joining the first portion and the second portion, the linking member including a pin element extending radially inwardly into the valve and the valve includes a slot that it receptive of the pin element; and
a valve actuator shiftably connected to the tool body and mechanically connected to the actuator member, the valve actuator including a plurality of drag blocks and one or more spring members, the one or more spring members radially outwardly biasing the plurality of drag blocks.

US Pat. No. 11,111,759

BALL VALVE FOR OIL AND GAS FRACTURING OPERATION

JNJ FRACKING, LLC, Dalla...


1. A ball valve assembly, comprising:a main body having a bore for transmitting fluid therethrough;
a ball disposed within the main body and having a throughbore, the ball being hydraulically rotatable within the main body for rotation between an open state and a closed state of the ball; and
at least one wiper disposed on a portion of the ball, wherein the at least one wiper has an edge portion being in contact with an external surface of the ball throughout rotational operations of the ball; and
at least one ball seat disposed on said portion of the ball; and
at least one spring holder seated on the at least one ball seat,
wherein the at least one spring holder includes one or more cavities accommodating one or more springs and is configured to exert force on the at least one ball seat to keep the ball in position within the main body, and
wherein the at least one wiper and the at least one ball seat do not overlap each other in a direction perpendicular to an axial direction of the bore.

US Pat. No. 11,111,758

DOWNHOLE SLEEVE TOOL

The WellBoss Company, Inc...


1. A downhole sleeve tool comprising:a lower sub comprising a central bore therethrough and an at least one sleeve port;
a piston valve slidably positionable within the lower sub to selectively block fluid communication between the central bore and the one or more sleeve ports;
an upper sub connectable to the lower sub, the upper sub further comprising:an inlet port;
an at least one fluid communication port;
an outlet port; and
a cartridge bore formed within a sidewall of the upper sub;

a cartridge assembly disposed within the cartridge bore, the cartridge assembly further comprising:a spring rod;
a cartridge sleeve movably positioned on an at least a portion of the spring rod;
a bias member engaged with the cartridge sleeve;
a break pin comprising a pin working surface, the break pin disposed within at least a portion of the cartridge sleeve, and engaged with the spring rod,

wherein the break pin is configured to break from application of a pressure of a fluid against the pin working surface.

US Pat. No. 11,111,757

SYSTEM AND METHODOLOGY FOR CONTROLLING FLUID FLOW

SCHLUMBERGER TECHNOLOGY C...


16. A method, comprising:providing a well completion with a shunt tube system to facilitate a gravel packing operation;
enabling a gravel pack carrier fluid to return through a base pipe of the well completion;
positioning a valve assembly to restrict fluid flow into the base pipe following the gravel packing operation; and
selectively actuating the valve assembly, via a signal, to restrict fluid flow into the base pipe,
wherein the signal comprises a pressure signal applied through the shunt tube system, and
wherein selectively actuating comprises actuating a pressure release mechanism to enable flow of the pressure signal from the shunt tube system to the valve assembly.

US Pat. No. 11,111,756

VALVE AND A METHOD FOR CLOSING FLUID COMMUNICATION BETWEEN A WELL AND A PRODUCTION STRING, AND A SYSTEM COMPRISING THE VALVE

Innowell Solutions AS, P...


1. A valve for closing fluid communication between a well and a production string when a content of an undesired fluid in the fluid flow exceeds a predetermined level, the valve comprising:a primary flow channel having a primary inlet through a flow barrier, and a low pressure portion;
a secondary flow channel connected to the primary flow channel at the low pressure portion, the secondary flow channel having a secondary inlet through the flow barrier and provided with a flow restrictor;
a chamber in connection with the secondary flow channel;
a piston arranged in the primary flow channel for opening and closing the primary flow channel, the piston defining a portion of the chamber in connection with the secondary flow channel;
an inflow control element movable between a first position and a second position in response to a density of a fluid;
wherein the inflow control element is exposed to the fluid flow upstream of the flow barrier and is arranged to move to the second position and close the secondary inlet when the content of the undesired fluid in the flow upstream of the flow barrier exceeds the predetermined level; and
wherein the closing of the secondary inlet causes an underpressure in the chamber such that the piston is activated and the valve is closed.

US Pat. No. 11,111,755

APPARATUS AND METHOD FOR DELIVERING SETTABLE FLUID DOWNHOLE

DeltaTek Oil Tools Limite...


1. Downhole apparatus comprising: a tubular body for mounting on an inner tubing string; a first flow port; a second flow port; and a connector associated with the tubular body and operable to engage with and disengage from a lower end of a bore-lining tubing string, the apparatus having a first configuration in which the first flow port is open and the second flow port is closed, whereby a settable material may be pumped in a first direction downwards through the tubular body, through the connector, and through the first flow port, and a second configuration in which the first flow port is closed and the second flow port is open, whereby a fluid may be pumped in the first direction downwards through the tubular body, exit the tubular body through the second flow port, and then flow in a second direction upwards and externally of the tubular body.

US Pat. No. 11,111,754

ISOLATION POLYMER PACKER

Saudi Arabian Oil Company...


1. A method of treating a wellbore in a geological formation for isolation of a water zone, comprising:deploying a first application packer into the wellbore to a lower target depth below the water zone, the wellbore comprising a sand screen;
discharging hydrogel from the first application packer through the sand screen into an annulus between the sand screen and the geological formation to form a lower hydrogel packer in the annulus at the lower target depth;
deploying a second application packer into the wellbore to an upper target depth above the water zone; and
discharging hydrogel from the second application packer through the sand screen into the annulus to form an upper hydrogel packer in the annulus at the upper target depth, wherein the hydrogel comprises polyacrylamide (PAM) comprising a copolymer of acrylamide (AM) and 2-(dimethylamino)ethylacrylatemethochloride (DAC).

US Pat. No. 11,111,753

POLYMER GEL COMPOSITIONS FOR TREATING AQUEOUS ZONES IN SUBTERRANEAN FORMATIONS AND METHODS OF TREATING THE AQUEOUS ZONES

Saudi Arabian Oil Company...


1. A method for treating an aqueous zone of a subterranean formation, the method comprising:injecting a polymer gel composition into at least a portion of the aqueous zone of the subterranean formation, the polymer gel composition comprising:a base polymer comprising poly[acrylamide-co-(tert-butyl acrylate)], polyacrylamide homopolymer, or poly[acrylamide-co-(tert-butyl acrylate)] and polyacrylamide homopolymer;
a cross-linking agent; and
an adsorption system comprising at least a silane compound;
where the polymer gel composition has a viscosity of from 5 centipoise to 10 centipoise prior to injection into the aqueous zone;

curing the polymer gel composition in the portion of the aqueous zone to produce a cross-linked polymer gel matrix, where the cross-linked polymer gel matrix produces a barrier that reduces or prevents aqueous materials from flowing from the aqueous zone into a wellbore.

US Pat. No. 11,111,752

WATER AND GAS BARRIER FOR HYDRAULIC SYSTEMS

BAKER HUGHES, A GE COMPAN...


1. A downhole tool comprising:a body including a hydraulic fluid chamber; and
a flexible multi-layer barrier impermeable to gas and water mounted at the body separating the hydraulic fluid chamber from fluids external to the body, the flexible multi-layer barrier comprising:
a first elastomeric layer;
a second elastomeric layer; and
a gas impermeable layer arranged between the first elastomeric layer and the second elastomeric layer, the gas impermeable layer being formed from a metal layer, wherein the metal layer comprises a metal having a melting point less than about 30° C.

US Pat. No. 11,111,751

BLOWOUT PREVENTER WITH DUAL FUNCTION RAMS

Schlumberger Technology C...


1. A dual function ram system for a blowout preventer (BOP), the dual function ram system comprising:a first dual function ram configured to move within a cavity of the BOP between a withdrawn position to cause the BOP to be in an open configuration and an extended position to cause the BOP to be in a closed configuration, wherein the first dual function ram comprises a shearing surface that is configured to shear a tubular within a central bore during a shearing operation and a pipe-sealing surface that is configured to seal against the tubular within the central bore during a pipe-sealing operation.

US Pat. No. 11,111,750

TELESCOPING ELECTRICAL CONNECTOR JOINT

SAUDI ARABIAN OIL COMPANY...


1. A telescoping connector joint for making an electrical connection, the telescoping connector joint including:a first tubular member with a first internal bore;
a second tubular member with a second internal bore in fluid communication with the first internal bore, the second tubular member located within the first internal bore such than a joint annular space is defined between an outer diameter surface of the second tubular member and an inner diameter surface of the first internal bore;
an annular seal assembly sealing the joint annular space; and
a female wet connect member located on and secured to an outer diameter surface of one of the first tubular member and the second tubular member and a male wet connect member located on and secured to the outer diameter surface of the other of the first tubular member and the second tubular member; where
the female wet connect member and the male wet connect member are located radially external to the first tubular member and the second tubular member;
the telescoping connector joint has a connected configuration where the female wet connect member is in electrical engagement with the male wet connect member and a maximum length of the second tubular member is located within the first internal bore; and
the telescoping connector joint has an unconnected configuration where the female wet connect member is free of electrical engagement with the male wet connect member and less than the maximum length of the second tubular member is located within the first internal bore.

US Pat. No. 11,111,749

CORRECTING OFFSETS IN WELLBORE TUBULARS

Saudi Arabian Oil Company...


1. A system for positioning an inner tubular within an outer tubular positioned within a wellbore, the system comprising:an outer tubular defining an inner passage inserted in a wellbore, the outer tubular having a first central axis;
an inner tubular defining an inner passage of the outer tubular, the inner tubular inserted in a wellbore, the inner tubular having a second central axis that is offset from and parallel to the first central axis;
a flange attached at an uphole end of the outer tubular, the flange encircling an outer circumference of the inner tubular, wherein the flange extends from an outer surface of the inner tubular past an outer surface of the outer tubular, the flange having a third central axis that is in-line with the second central axis;
a wellhead housing, the wellhead housing positioned at an uphole end of the flange and the wellhead housing encircling the outer circumference of the inner tubular, the flange positioned between the wellhead housing and the uphole end of the outer tubular; and
a casing hanger positioned within the wellhead housing, the casing hanger frictionally attached to the inner tubular within the wellhead housing.

US Pat. No. 11,111,748

MILLING TOOLS WITH A SECONDARY ATTRITION SYSTEM

Wellbore Integrity Soluti...


1. A secondary attrition system for a milling system, comprising:a sleeve having an inner surface and an outer surface;
a tubular component within the sleeve and rotationally connected to the sleeve, the tubular component having an outer surface cooperating with the inner surface of the sleeve to define a gap having a variable width along at least a portion of a length of the tubular component; and
at least one cutting element coupled to the inner surface of the sleeve or the outer surface of the tubular component and the at least one cutting element located within the gap.

US Pat. No. 11,111,747

DELIVERY TOOL FOR TUBULAR PLACEMENT OF AN ADAPTIVE SEAT

DISRUPTIVE DOWNHOLE TECHN...


1. An adaptive seat delivery assembly for a tubular string, comprising:a mandrel;
an outer piston being the sole piston supported on said mandrel, said mandrel and said outer piston selectively relatively movable;
an adaptive seat released from said mandrel responsive to said selective relative movement, said adaptive seat, upon being released, moving radially toward the tubular string for support therefrom;
said selective relative movement initiated by a power charge located in a power charge compartment in said mandrel, said power charge compartment in fluid communication to a surrounding annularly shaped outer piston compartment, said outer piston compartment formed by said mandrel nested in said outer piston to directly communicate gas pressure initiated by setting off said power charge to contact said outer piston in said outer piston compartment after passing through at least one radial port connecting said power charge compartment to said outer piston compartment.

US Pat. No. 11,111,746

WELLBORE ARRANGEMENT

PETROLEUM TECHNOLOGY COMP...


1. A well component having a main bore and a lateral opening from the main bore, the well component further comprising a deflector surface arranged adjacent the lateral opening on an inner wall of the main bore and longitudinally extending from a location spaced from the opening in a longitudinal direction of the main bore, to a location longitudinally at the same height as and circumferentially spaced from the lateral opening in the main bore, such that the deflector surface defines a path configured to guide one or more radially protruding guide taps/fingers of a downhole tool in a circumferential direction and away from the opening by engagement of the guide taps/fingers with the path so as to turn the downhole tool in the main bore.

US Pat. No. 11,111,745

DOWNHOLE ANCHOR WITH STRENGTHENED SLIPS FOR WELL TOOL

Weatherford Technology Ho...


1. A well tool, comprising:a downhole anchor including at least one outwardly extendable slip configured to grip a well surface,
the slip comprising longitudinally spaced apart grip structures, and a longitudinally extending beam which connects the grip structures to each other, and
the beam having a radial thickness which is greater than a lateral width of the beam.

US Pat. No. 11,111,744

METHODS AND SYSTEMS FOR MOUNTING A ZIPPER MANIFOLD INCLUDING RAILS

Commando Pressure Control...


1. A system comprising:a main rail positioned on a first side of a central axis of a platform;
a first rail positioned on a second side of the central axis of the platform, the first rail having a shorter length than the main rail;
a first cart being configured to be coupled with the main rail and the first rail to move along a linear axis in parallel to the first rail and the main rail, the first cart being configured to secure a mixing block and valve assemblies, wherein the first cart includes a mixing block cart and a valve tray, wherein the valve tray is configured to move between an extended and retracted position, wherein the movement of the valve tray is perpendicular to the main rail.

US Pat. No. 11,111,743

GAS TIGHT SHALE SHAKER FOR ENHANCED DRILLING FLUID RECOVERY AND DRILLED SOLIDS WASHING

RECOVER ENERGY SERVICES I...


1. A process for separating solid drill cuttings from oil-based drilling mud mixture containing said solids, said process comprising:providing a gas-tight shale shaker including a vibrating screen bed, an inlet at a first end of said vibrating screen bed, a solids outlet at a second end of said vibrating screen bed, and a gas-tight cover above said vibrating screen bed enclosing a gas-tight interior;
introducing an oil-based drilling mud mixture containing solids into said gas-tight interior through said inlet;
adding at least one diluent to the introduced oil-based drilling mud mixture containing solids at a rate sufficient to reduce the plastic viscosity of a liquid phase of the introduced oil-based drilling mud mixture containing solids;
purging said gas-tight interior with a purging gas until said gas-tight interior has an oxygen level at or below a minimum oxygen level required for ignition of said at least one diluent;
maintaining said gas-tight interior by preventing said at least one diluent from escaping from said gas-tight interior, while at the same time preventing air containing oxygen from being introduced into said gas-tight interior from an external environment;
flowing said introduced oil-based drilling mud mixture containing solids over said vibrating screen bed to cause a least some liquid to pass through the vibrating screen bed, while at least some solids remain above the vibrating screen bed; and
allowing said at least some solids that remain above the vibrating screen bed to exit said gas-tight interior through said solids outlet.

US Pat. No. 11,111,742

APPARATUS FOR LOSS CIRCULATION MATERIAL PERFORMANCE EVALUATION

Saudi Arabian Oil Company...


1. A loss circulation material (LCM) testing apparatus comprising:a drilling fluid reservoir configured to carry a wellbore drilling fluid;
a LCM reservoir configured to carry a loss circulation material (LCM);
a spacer fluid reservoir configured to carry a spacer fluid; and
a LCM test cell comprising a disk member comprising a plurality of openings, the disk member representing a loss circulation zone in a subterranean zone in which a wellbore is drilled using the wellbore drilling fluid, the LCM test cell fluidically connected to the drilling fluid reservoir, the LCM reservoir and the spacer fluid reservoir, the LCM test cell configured to fluidically receive a quantity of LCM from the LCM reservoir and to evaluate a sealing efficiency of the LCM, the sealing efficiency being an ability of the LCM to prevent flow of the wellbore drilling fluid through the plurality of openings in the disk member.

US Pat. No. 11,111,741

MUD FILTER

Wellbore Debris Solutions...


1. A wellbore tool usable to capture and retain debris from drilling fluid entering a drill string (300) and prevent debris-laden fluid from entering sensitive BHA components, comprising:a tubular body with selectively connectable threaded connections to the drill string (300) and/or workstring and housing a sub-assembly (600), comprising;
a steel tubular screen and/or mesh (2) with an outer diameter smaller than an inside diameter of the tubular body supported within a bore of the tubular body by a dart support member (13) and a tapered conical support member, allowing for an annular collection gap surrounded by a set of magnetic bars (15),
a bristle ring (6) or a set of bristle rings mounted in a bore of the steel tubular screen and/or mesh (2) used independently or in conjunction with a rupture disc, (7) which prevents fluid from entering a bore of the wellbore tool and diverts it around towards the annular collection gap between the inside diameter of the tubular body and outer diameter of the steel tubular screen and/or mesh (2), and wherein the rupture disc (7) can be burst by a change in pressure or by applying a load against a membrane of the rupture disc.

US Pat. No. 11,111,740

SYSTEM AND METHOD FOR PRESSURE ISOLATION AND RELIEF ACROSS A THREADED CONNECTION

BAKER HUGHES OILFIELD OPE...


1. A downhole system comprising:a first tubular including a terminal end having a first threaded connector portion, an inlet, an annular wall having an inner surface and an outer surface, and a first conduit extending within the wall between the inner surface and the outer surface fluidically exposed at the terminal end; and
a second tubular including a terminal end section having a second threaded connector portion threadably coupled to the first threaded connector portion to form a joint, an annular wall section having an inner surface section and an outer surface section, and a second conduit extending within the wall section between the inner surface section and the outer surface section and fluidically exposed at the terminal end section, wherein the first conduit is circumferentially misaligned and fluidically connected to the second conduit across the joint.

US Pat. No. 11,111,739

WELL BORE CONDITIONER AND STABILIZER

EXTREME TECHNOLOGIES, LLC...


1. A drill string stabilizer for use in a well bore, the well bore having a well bore axis and a well bore wall, comprising:a tubular body with a stabilizer axis;
a first roller including a first roller axis spaced a first fixed distance apart from the stabilizer axis of the tubular body; and,
at least a second roller spaced longitudinally apart from the first roller, the at least the second roller including a second roller axis spaced a second fixed distance apart from the stabilizer axis of the tubular body;
wherein the first roller is angularly offset from the at least the second roller around a circumference of the tubular body; and,
a plenum that separates the first roller and the at least the second roller, wherein a pass-through diameter of the drill string stabilizer is smaller than a gauge diameter of the drill string stabilizer.

US Pat. No. 11,111,738

RELEASABLE CONNECTION MECHANISM FOR USE WITHIN A WELL

Halliburton Energy Servic...


1. A method for disconnecting a releasable connection mechanism from a tubular member in a well, comprising:positioning the tubular member within the well; then
separating a collet of the releasable connection mechanism from a ring housing of the releasable connection mechanism while maintaining engagement between the collet and the tubular member; then
axially moving a collet stop of the releasable connection mechanism with respect to the collet from a disengaged position to an engaged position to prevent relative axial movement between the collet, the collet stop, and the ring housing while maintaining engagement between the collet and the tubular member; and then
applying tension to the releasable connection mechanism while the collet stop is in the engaged position to disengage the collet of the releasable connection mechanism from the tubular member to deploy the tubular member within the well.

US Pat. No. 11,111,737

DOWNHOLE COUPLING MECHANISM

MORPHPACKERS LIMITED, Ab...


1. A downhole coupling mechanism between a first end of a first tubular section being part of a downhole tool and a second end of a second tubular section, comprising:one or more complimentary circumferential grooves machined in opposing surfaces of each end that align when the first and second ends are arranged co-axially one inside the other;
at least one wire located within one of the circumferential grooves on the first end and a complimentary one of the circumferential grooves on the second end, wherein each pair of complimentary grooves contains the at least one wire extending around the circumference of the surface of each end;
at least one lug and corresponding notch arranged on opposite of the first and second ends providing interlocking engagement when the first and second ends are arranged co-axially one inside the other, wherein the at least one notch extends from an inner surface of the second tubular section and does not extend through the wall thickness of the second tubular member; and
one or more seals arranged between the opposing surfaces when the first and second ends are arranged co-axially one inside the other.

US Pat. No. 11,111,736

CONNECTOR RING

HALLIBURTON ENERGY SERVIC...


1. A connector ring for coupling to an electronics carrier, the connector ring comprising:a body extending along a longitudinal axis;
a transmitter sensor connector coupled with the body and extending parallel to the longitudinal axis, the transmitter sensor connector having a first end; and
a receiver sensor connector coupled with the body and extending parallel to the longitudinal axis, the receiver sensor connector having a first end, wherein the first end of the transmitter sensor connector and the first end of the receiver sensor connector are staggered along the longitudinal axis; and
a plurality of alignment connectors parallel to the longitudinal axis, the plurality of alignment connectors being operable to couple with a corresponding plurality of alignment pins of the electronics carrier, wherein the plurality of alignment connectors are separate from the transmitter sensor connector and the receiver sensor connector to facilitate coupling between the connector ring and the electronics carrier and to avoid damage of the transmitter sensor connector and receiver sensor connector during coupling of the connector ring and the electronics carrier, and wherein the connector ring comprises a connecting region including a high shoulder and a low shoulder, and wherein at least one alignment connector of the plurality of alignment connectors is disposed on the high shoulder of the connecting region and at least one alignment connector of the plurality of alignment connectors is disposed on the low shoulder of the connecting region.

US Pat. No. 11,111,735

DOWNHOLE TOOL FOR CONNECTING WITH A CONVEYANCE LINE

Impact Selector Internati...


1. An apparatus comprising:a downhole tool operable to connect with a conveyance line, wherein the downhole tool comprises:an upper body defining a bore open to space external to the downhole tool, wherein the downhole tool is configured to receive the conveyance line via the bore;
a lower body defining a chamber, wherein a portion of the upper body is disposed within the chamber, and wherein the upper body and the lower body are connected to inhibit movement of the upper body with respect to the lower body; and
a line end termination device disposed within the chamber, wherein the line end termination device comprises a plurality of line end termination device portions configured to compress armor wires of the conveyance line to thereby connect the line end termination device to the conveyance line and thereby connect the downhole tool to the conveyance line;
wherein, after the downhole tool is connected to the conveyance line and conveyed within a wellbore via the conveyance line, the upper body moves upward with respect to the lower body when a tension is applied to the conveyance line causing the line end termination device portions to separate to thereby permit the conveyance line to be pulled out of the line end termination device and thereby disconnect the downhole tool from the conveyance line.


US Pat. No. 11,111,734

SIDE-SADDLE CANTILEVER MAST

NABORS DRILLING TECHNOLOG...


1. A method of transporting a mast comprising:transporting a lower mast subunit, the lower mast subunit including a lower mast section, a top drive positioned within the lower mast section, the lower mast section having a V-door side, the lower mast-subunit transported such that the V-door side of the lower mast section is perpendicular to the ground;
transporting a middle mast subunit, the middle mast subunit including a middle mast section, the middle mast section having a V-door side, the middle mast subunit transported such that the V-door side of the middle mast section is perpendicular to the ground; and
transporting an upper mast subunit, the upper mast subunit including an upper mast section, a travelling block positioned within the upper mast section, the upper mast section having a V-door side, the upper mast subunit transported such that the V-door side of the upper mast section is perpendicular to the ground.

US Pat. No. 11,111,733

DRILLING ASSEMBLIES

Nabors Drilling Technolog...


1. A drilling assembly comprising: a first mast; a second mast; a water table coupled between the first and second masts; and a first plurality of sheaves coupled to the water table and adapted to translate, relative to the first mast, in a first horizontal direction along a first plane oriented generally perpendicular to a height of at least one of the first or second mast; and a first drawworks disposed in a receiving area with the receiving area adapted to translate, relative to the first mast, in the first horizontal direction along a second plane that is parallel to the first plane.

US Pat. No. 11,111,732

DRILL BITS WITH INCORPORATED SENSING SYSTEMS

Saudi Arabian Oil Company...


1. A drill bit for forming a wellbore, the drill bit comprising:a body comprising a connector for a drill string;
a drill bit cutter coupled to the body, the drill bit cutter comprising:a substrate with a first end and an opposite second end;
an end cap formed on the first end of the substrate, the end cap having a cutting surface operable to engage formation rock to form the wellbore; and
an acoustic sensor attached to the second end of the substrate, the acoustic sensor configured to transmit acoustic waves and receive reflected acoustic waves; and

a processor electrically connected to the acoustic sensor, the processor operable to determine a condition of the drill bit cutter based on at least one of a phase difference and a frequency difference between a transmitted acoustic wave and a received acoustic wave of the acoustic sensor.

US Pat. No. 11,111,731

TECHNIQUES FOR FORMING INSTRUMENTED CUTTING ELEMENTS AND AFFIXING THE INSTRUMENTED CUTTING ELEMENTS TO EARTH-BORING TOOLS AND RELATED APPARATUSES AND METHODS

Baker Hughes Oilfield Ope...


1. A method of making an earth-boring tool comprising one or more instrumented cutting elements, the method comprising:placing a cutting element partially within a pocket extending into a body of an earth-boring tool, the cutting element comprising:a first hole extending over a first distance partially through the cutting element from a back side of the cutting element opposite a cutting face of the cutting element toward the cutting face, the first hole comprising a first maximum diameter;
a second hole extending over a second, shorter distance partially through the cutting element from the back side of the cutting element toward the cutting face, the second hole comprising a second, larger maximum diameter, the second hole in fluid communication with the first hole; and
an extension comprising a passageway extending through the extension located at least partially within the second hole, the passageway in fluid communication with the first hole;

affixing the cutting element in the pocket; and
inserting a thermocouple through the passageway and into the first hole after affixing the cutting element in the pocket.

US Pat. No. 11,111,730

DOWNHOLE ADJUSTABLE DRILL BITS

Halliburton Energy Servic...


14. A method of adjusting a characteristic of a drill bit, the method comprising:while operating the drill bit within a wellbore, moving an adjustable cutter blade and a gauge pad in opposite radial directions, with respect to a longitudinal axis of the bit head, on a side of a bit head of the drill bit by moving the adjustable cutter blade and the gauge pad in a same axial direction, with respect to the longitudinal axis of the bit head, and wherein moving the adjustable cutter blade and the gauge pad in the same axial direction comprises axially moving an actuator block coupled to the adjustable cutter blade and the gauge pad, with respect to the longitudinal axis of the bit head.

US Pat. No. 11,111,729

MULTI-INDENTER HAMMER DRILL BITS AND METHOD OF FABRICATING

MINCON INTERNATIONAL LIMI...


1. A method of fabricating a down-the-hole hammer multi-indenter drill bit for use in down-the-hole hammer drilling of a hole, the drill bit including a plurality of indenters arranged on a drilling surface of a bit face, the method comprising:defining a drill bit face area;
defining a number of drill bit indenters;
defining a total area of the drill bit indenters,
wherein a ratio, expressed as a percentage, of total indenter area to bit face area provides a value KPI1 (Key Performance Indicator 1), and a ratio, expressed as a percentage, defined by (the total area the drill bit indenters/the number of indenters)/(bit face area), provides a value KPI2 (Key Performance Indicator 2); and
using the equationKPI2<=1.353×10?6(KPI1)5?1.527×10?4(KPI1)4+6.586×10?3(KPI1)3?1.301×10?1(KPI1)2+1.185(KPI1)?3.960

to constrain a relationship between KPI1 and KPI2.

US Pat. No. 11,111,728

SUPER HARD CONSTRUCTIONS AND METHODS OF MAKING SAME

Element Six (UK) Limited,...


1. A super hard construction comprising:a substrate comprising a peripheral surface, an interface surface and a longitudinal axis extending in a plane; and
a super hard material layer formed over the substrate and having an exposed outer surface, a peripheral surface extending therefrom and an interface surface;
wherein the interface surface of the substrate comprises:
one or more projections arranged to project from the interface surface in a first direction along the longitudinal axis; the one or more projections being spaced from the peripheral surface of the substrate; and
a peripheral flange extending between a peripheral side edge and the interface surface, the peripheral flange being inclined at an angle of between around 5 degrees to around 30 degrees to a plane substantially perpendicular to the plane through which the longitudinal axis extends and directed away from the plane substantially perpendicular to the plane through which the longitudinal axis extends in a second direction opposite the first direction; wherein the flange is spaced from the peripheral side edge by a shoulder portion, the shoulder portion extending a radial distance of between around 0.2 to around 0.8 mm from the peripheral side edge in a plane substantially perpendicular to the plane through which the longitudinal axis of the substrate extends.

US Pat. No. 11,111,727

HIGH-POWER LASER DRILLING SYSTEM

Saudi Arabian Oil Company...


13. A method of using a system for stimulating a hydrocarbon-bearing formation, the method comprising the steps of:passing, through one or more optical transmission media, a raw laser beam generated by a laser generating unit at an origin of an optical path comprising the one or more optical transmission media;
delivering the raw laser beam to an optical assembly positioned within a wellbore; manipulating the raw laser beam with the optical assembly to output a substantially rectangular beam offset from a central axis of the optical assembly; and
rotating the optical assembly about the central axis to rotate and deliver the substantially rectangular beam to the formation to drill a substantially circular hole in the formation, where a diameter of the hole is greater than a diameter of the raw laser beam.