Patents Issued in April 25, 2024
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Publication number: 20240133311Abstract: A distributor for a turbine of a turbomachine. The distributor includes a radially inner platform, a blade and a root which is coated with a track made of an abradable material. According to the invention, the distributor includes a leakage gas reintroduction duct. The duct includes an inlet through the track made of an abradable material, an outlet opening through a downstream surface of the root, and a duct intermediate portion which extends from the inlet up to the outlet. The duct intermediate portion is orientated with a tangential component.Type: ApplicationFiled: February 14, 2022Publication date: April 25, 2024Applicant: SAFRAN AIRCRAFT ENGINESInventors: Jérôme Claude George LEMONNIER, Franck Davy BOISNAULT, Antoine Bruno VAN NOORT
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Publication number: 20240133312Abstract: A vane assembly includes vanes, an actuator assembly, and a controller. The vanes are configured to rotate about their pitch axes. The actuator assembly includes an annular ring arranged radially outward of the vanes and coupled to the vanes, a magnet arranged on the annular ring, and a stator arranged adjacent the magnet. The ring is configured to rotate the vanes about the pitch axes in response to rotation of the ring about the central axis and the stator is configured to selectively rotate the magnet and annular ring about the central axis. The controller controls movement of the ring via the stator and magnets in response to at least one of (i) at least one operating condition of the gas turbine engine, or (ii) at least one operating parameter of the at least one first vane.Type: ApplicationFiled: October 20, 2022Publication date: April 25, 2024Inventors: Timothy Unton, Andrew Eifert, Michael Moser
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Publication number: 20240133313Abstract: A vane assembly includes a casing, vanes, and an actuator assembly. The vanes are arranged within the casing and are rotatably coupled to the casing for rotation relative thereto and configured to rotate about their pitch axes. The actuator assembly is arranged radially outward of the casing and includes an annular ring surrounding the casing and coupled to the vanes, a magnet arranged on the ring, and a stator spaced apart from the magnet. The ring is configured to rotate the vanes about their pitch axes in response to rotation of the ring about the central axis and the stator is configured to selectively rotate the magnet and ring about the central axis. The stator is configured to create a magnetic field which causes annular movement of the ring via interaction with the magnet.Type: ApplicationFiled: October 20, 2022Publication date: April 25, 2024Inventors: Timothy Unton, Andrew Eifert, Michael Moser
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Publication number: 20240133314Abstract: There is provided a method of starting a gas turbine engine, comprising: selecting a baseline starting procedure of the gas turbine engine based on environmental data; receiving condition information for the gas turbine engine and/or for a starting system of the gas turbine engine, the condition information comprising at least one of: health information for the gas turbine engine and/or the starting system; maintenance information for the gas turbine engine and/or the starting system; and operation information relating to an expected future usage of the gas turbine engine. The method further comprises determining a predicted degradation profile for the gas turbine engine and/or the starting system based on the condition information; determining a starting procedure of the gas turbine engine by adapting the baseline starting procedure based on the predicted degradation profile; and controlling the gas turbine engine and/or the starting system according to the determined starting procedure.Type: ApplicationFiled: October 16, 2023Publication date: April 25, 2024Applicant: ROLLS-ROYCE plcInventors: David M. DONNELLY, Caroline L. TURNER, Derek S. WALL, Peter F. DOUGLAS
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Publication number: 20240133315Abstract: An integrally bladed rotor (IBR) for a gas turbine engine is provided. The IBR includes a hub, rotor blades that include a test blade, and at least one heating element. Each rotor blade has an airfoil with leading and trailing edges, suction side and pressure side surfaces, and a base end. The airfoil of the test blade includes at least one slot defining a void in the airfoil. The slot extends a lengthwise distance into the airfoil along a direction generally between the leading and trailing edges of the airfoil and terminates at a slot end surface. The airfoil includes at least one internal cavity extending lengthwise from the slot end surface. The heating element is disposed in the internal cavity and selectively produces thermal energy sufficient to heat the airfoil material proximate the internal cavity to a temperature at which the airfoil mechanical strength properties are decreased.Type: ApplicationFiled: October 20, 2022Publication date: April 25, 2024Inventors: Yongsheng Zhou, Brigitte Toljagic
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Publication number: 20240133316Abstract: A method for cleaning a steam system including an intermittent operation processing step and a commissioning processing step are executed. The intermittent operation processing step includes: a no-load operation step in which a gas turbine is operated with no load, with a steam stop valve and a bypass valve closed; during the no-load operation step, a pressure accumulating step in which steam is accumulated in a pressure accumulation region; and, after the pressure accumulating step, an intermittent blowing step in which the bypass valve is opened, and steam in the pressure accumulation region is allowed to flow into a condenser. The commissioning processing step includes: a commissioning step in which the gas turbine is commissioned with the steam stop valve closed and the bypass valve open; and a continuous blowing step in which steam from a waste heat recovery boiler is allowed to flow into the condenser.Type: ApplicationFiled: March 8, 2022Publication date: April 25, 2024Inventors: Tatsuki UEDA, Kazushige KUWAZURU, Daiki FUJIMURA, Motohiro GOSHIMA
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Publication number: 20240133317Abstract: A sensor includes a mount arranged along a sensor axis, an airfoil body fixed to the mount and having a first face and second face extending along the sensor axis, a heater element, and a temperature probe. The heater element and the temperature probe are positioned within the airfoil body and extend axially along the airfoil body. The airfoil body defines within its interior a pressure channel having an inlet segment extending between the heater element and the first face of the airfoil body to prevent ice formation and/or melt ice entrained within air traversing the pressure channel. Gas turbine engines, methods of removing ice or preventing ice formation, and methods of making sensors are also described.Type: ApplicationFiled: December 29, 2023Publication date: April 25, 2024Inventors: Andrew Holl, Scott Wigen, Robert Edward Sable, Scott D. Isebrand, Brian Boyd
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Publication number: 20240133318Abstract: A gas turbine engine, comprising a turbomachine and a housing at least partially encasing a portion of the turbomachine, the housing having an inner surface and defining in part a void between the inner surface and the portion of the turbomachine, the housing moveable relative to the portion of the turbomachine; and an engine component selectively coupled to the portion of the turbomachine or to the housing.Type: ApplicationFiled: October 24, 2022Publication date: April 25, 2024Inventors: Brian Lewis Devendorf, Arthur William Sibbach
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Publication number: 20240133319Abstract: A system for readying sub-critical and super-critical steam generator, a servicing method of the sub-critical and the super-critical steam generator and a method of operation of sub-critical and super-critical steam generator is provided. The steam generator includes a first auxiliary heating device disposed on at least one water-steam separator for heating the at least one water-steam separator, and/or a second auxiliary heating device disposed at least on a part of furnace top-end piping for heating the furnace top-end piping. The auxiliary heating devices are heating steam producing components of the steam generator and thus allowing to keep them above the temperature in which materials creating the steam producing components are brittle. The method includes recirculation of the water through the steam generator.Type: ApplicationFiled: October 18, 2022Publication date: April 25, 2024Applicant: GENERAL ELECTRIC TECHNOLOGY GMBHInventors: RALPH MAYER, WOLFGANG FRANZ DIETRICH MOHR
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Publication number: 20240133320Abstract: A combined cycle power plant (CCPP) is provided. The CCPP includes a gas turbine that has a compressor section, a combustion section, and a turbine section. The CCPP further includes a heat recovery steam generator (HRSG) that has a first economizer. The HRSG receives a flow of exhaust gas from the turbine section. The HRSG further includes a fuel heating system that has a fuel supply line and a high temperature heat exchanger disposed in thermal communication on the fuel supply line. The fuel supply line is fluidly coupled to the combustion section. The high temperature heat exchanger is fluidly coupled to the first economizer such that the high temperature heat exchanger receives water from the first economizer. The CCPP further includes a feedwater pump that is fluidly coupled to the high temperature heat exchanger.Type: ApplicationFiled: October 24, 2022Publication date: April 25, 2024Inventor: Raub Warfield Smith
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Publication number: 20240133321Abstract: An apparatus includes a closed gas system having: a working circuit in which a compressor for a working fluid, a first heat exchanger for heating the working fluid, an expander and a second heat exchanger for cooling the working fluid are arranged; a first pressurised gas tank and a first gas pipe which branches off from the working circuit between the compressor and the first heat exchanger and opens into the first pressurised gas tank; and a second gas pipe which branches off from the first pressurised gas tank and opens into the working circuit between the expander and the second heat exchanger. A method controls pressure in a closed gas system using the apparatus.Type: ApplicationFiled: July 14, 2020Publication date: April 25, 2024Applicant: Siemens Energy Global GmbH & Co. KGInventors: Carsten Graeber, Uwe Juretzek
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Publication number: 20240133322Abstract: A bidirectional latch pin assembly can comprise a housing portion comprising a latch port. A latch pin in the latch port can comprise a stepped nose extending from a body portion. The stepped nose can comprise a first step and a second step. A spring can be biased against a guide mounted in the latch port and the spring can be configured to bias the latch pin to a first position extending the first step out of the latch port. A first actuation assembly can be configured to move the latch pin to a second position extending the first step and the second step out of the latch port. A second actuation assembly can be configured to move the latch pin to a third position pulling the first step and the second step into the latch port. A switchable rocker arm and a valvetrain assembly can be formed therewith.Type: ApplicationFiled: March 7, 2022Publication date: April 25, 2024Inventors: Emanuele Raimondi, Nicola Andrisani
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Publication number: 20240133323Abstract: A method of transferring fluid in a motor system includes containing a first volume of fluid in a reservoir of a fluid container that is in fluid communication with a fluid receptacle of a motor and containing a second volume of fluid in the fluid receptacle. A first quantity of fluid is transferred from the fluid receptacle to the reservoir of the replaceable fluid container so as to mix the first quantity of fluid from the fluid receptacle with the volume of fluid in the reservoir of the replaceable fluid container A second quantity of fluid is transferred from the reservoir back to the fluid receptacle.Type: ApplicationFiled: October 8, 2020Publication date: April 25, 2024Inventors: Krishan Arora, Ross Alexander Dewhurst
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Publication number: 20240133324Abstract: A motor for a vehicle comprises: a motor housing; an oil sump mounted to the motor for oil to drain from the motor housing into the oil sump, a width of the oil sump being greater than a depth of the oil sump, the oil sump having an oil pickup for circulating the oil; and a valve member mounted at a pivot point inside the oil sump, the valve member enclosing an air cavity for buoyancy, wherein the valve member is configured to rotate about the pivot point due to being buoyed by the oil.Type: ApplicationFiled: October 18, 2023Publication date: April 25, 2024Inventors: Lukas Bartmann, Dimitri Bassis, Markus Hose
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Publication number: 20240133325Abstract: An engine device includes an exhaust gas purification device above a cylinder head through a support pedestal. The support pedestal has a flat portion on which the exhaust gas purification device is mounted, and a plurality of legs which protrude downward form the flat portion and are fixed to the cylinder head. The flat portion and the leg portion are formed integrally. Portions between the legs are each formed in an arch-shape.Type: ApplicationFiled: January 2, 2024Publication date: April 25, 2024Applicant: Yanmar Power Technology Co., Ltd.Inventors: Yu Matsui, Naotoshi Furukawa
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Publication number: 20240133326Abstract: Systems and methods for removing soot in an aftertreatment system are disclosed. A method includes: receiving data regarding an exhaust gas flow rate of exhaust gas; receiving data regarding a selective catalytic reduction (SCR) inlet temperature; determining an adsorption amount of soot in the exhaust aftertreatment system based on the exhaust gas flow rate of the exhaust gas and the SCR inlet temperature; comparing the adsorption amount of soot to a predefined adsorption amount limit; in response to the adsorption amount of soot exceeding the predefined adsorption amount limit; initiating an exhaust cleaning event to remove at least some accumulated soot in the exhaust aftertreatment system; receiving exhaust gas data during the exhaust cleaning event; determining a desorption amount of soot based on the exhaust gas data; comparing the desorption amount of soot to a predefined desorption limit; and ceasing the exhaust cleaning event based on the comparison.Type: ApplicationFiled: January 2, 2024Publication date: April 25, 2024Applicant: Cummins Inc.Inventors: Todd C. Bouws, Ankit Raghunath Lad, Joshua A. Lantz, Boopathi Singalandapuram Mahadevan, Ian W. McGiffen, Douglas A. Roxbury
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Publication number: 20240133327Abstract: An apparatus for the catalytic treatment of gas having a casing and a catalytic article within the casing wherein the catalytic article comprises a ceramic honeycomb monolith which hosts a metallic track containing at least one least one metal, metal alloy, or an inorganic oxide.Type: ApplicationFiled: November 30, 2023Publication date: April 25, 2024Inventors: Carlos FONTE, Gregory GREGORI, Nigel JONES, Chris MORGAN, Daniel OAKES, Timothy O'CONNELL
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Publication number: 20240133328Abstract: A method for operating a burner, comprising supplying a controlled quantity of combustion air to the burner, supplying a controlled quantity of fuel to the burner, igniting the air-fuel mixture in the burner, determining a pressure pulsation value in the exhaust gas downstream of the burner and/or in an air path upstream of the burner, and adjusting the quantity of combustion air and/or the fuel depending on the pressure pulsation value. Further proposed are a computing unit and a computer program product for performing such a method.Type: ApplicationFiled: October 17, 2023Publication date: April 25, 2024Inventors: Chao Zhang, Christian Disch, Erwin Schiele, Markus Deissler, Winfried Langer
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Publication number: 20240133329Abstract: A computer implemented method for controlling the operation of an engine system in a vehicle is provided. The engine system comprising an engine and an exhaust aftertreatment system for reducing at least NOx emissions of the exhaust gases from the engine using a reductant, the engine system comprising a plurality of engine system components configured to perform a plurality of NOx emission reducing activities.Type: ApplicationFiled: October 18, 2023Publication date: April 25, 2024Applicant: VOLVO TRUCK CORPORATIONInventors: Johan DAHL, Esteban GELSO
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Publication number: 20240133330Abstract: A catalyst support for induction heating includes: a honeycomb structure including a pillar shaped honeycomb structure portion having: an outer peripheral wall; and a partition wall disposed on an inner side of the outer peripheral wall, the partition wall defining a plurality of cells, each of the cells extending from an end face on an inlet side to an end face on an outlet side in a gas flow direction to form a flow path; a catalyst supported onto an interior of the partition wall; and at least one magnetic body provided within the honeycomb structure, wherein the catalyst support has a region A where the catalyst is not supported, at least on the end face side of the catalyst support on the inlet side in the gas flow direction, and wherein the magnetic body is arranged at least in the region A in the gas flow direction.Type: ApplicationFiled: January 2, 2024Publication date: April 25, 2024Applicant: NGK INSULATORS, LTD.Inventors: Yukio MIYAIRI, Masaaki MASUDA, Shuichi ICHIKAWA, Takuya ISHIHARA, Kai MATSUMOTO, Norihisa FUJIE, Yoichi AOKI
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Publication number: 20240133331Abstract: A catalyst support for induction heating includes: a honeycomb structure including a pillar shaped honeycomb structure portion having: an outer peripheral wall; and a partition wall disposed on an inner side of the outer peripheral wall, the partition wall defining a plurality of cells, each of the cells extending from an end face on an inlet side to an end face on an outlet side in a gas flow direction to form a flow path; a catalyst supported onto an interior of the partition wall; and at least one magnetic body provided within the honeycomb structure, wherein the catalyst support has a region A where the catalyst is not supported, at least on the end face side of the catalyst support on the inlet side in the gas flow direction, and wherein the magnetic body is arranged at least in the region A in the gas flow direction.Type: ApplicationFiled: January 3, 2024Publication date: April 25, 2024Applicant: NGK INSULATORS, LTD.Inventors: Yukio MIYAIRI, Masaaki MASUDA, Shuichi ICHIKAWA, Takuya ISHIHARA, Kai MATSUMOTO, Norihisa FUJIE, Yoichi AOKI
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Publication number: 20240133332Abstract: A filter abnormality determination system includes: an internal combustion engine having a plurality of cylinders; an exhaust passage connected to the internal combustion engine; a filter provided in the exhaust passage and opposed to the filter and outputting a detection value corresponding to an oxygen concentration in the exhaust gas; and a determination device, wherein the determination device includes a control unit that executes an imbalance control for controlling an air-fuel ratio of one of the plurality of cylinders to a value different from an air-fuel ratio of another of the plurality of cylinders; and a determination unit for determining whether the filter is abnormal based on a detection value of the sensor corresponding to an air-fuel ratio of an exhaust gas of the one cylinder during execution of the imbalance control.Type: ApplicationFiled: August 2, 2023Publication date: April 25, 2024Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Junpei SHOUJI
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Publication number: 20240133333Abstract: [Task] A task is to make a V-type engine compact while suppressing the decrease in the output thereof. [Solution] A V-type engine 1 includes an engine body (3) including a crankcase (7) configured to rotatably support a crankshaft (11), and a pair of cylinder banks (8, 9) extending from the crankcase (7), a pair of exhaust pipes (31, 32) connected to the pair of cylinder banks (8, 9), a catalyst pipe (34) connected to the pair of exhaust pipes (31, 32), and a catalyst (33) accommodated in the catalyst pipe (34), wherein each of the pair of exhaust pipes (31, 32) is connected to the catalyst pipe (34) on an upstream side of the catalyst (33) in an exhaust direction, and the catalyst pipe (34) is arranged adjacently to the pair of cylinder banks (8, 9).Type: ApplicationFiled: February 25, 2021Publication date: April 25, 2024Inventors: Sayaka YASOSHINA, Atsuki SUGIHARA, Mashu KURATA, Takahiro TSUCHIYAMA
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Publication number: 20240133334Abstract: The catalytic converter has a first catalyst case containing a catalyst for cleaning a fluid, a second catalyst case containing a catalyst for cleaning the fluid downstream of the first catalyst case, a sensor for detecting the fluid is attached, and a connecting portion connected between the first catalyst case and the second catalyst case, the cross-sectional area of the first flow path of the fluid in the connecting portion is smaller than the cross-sectional area of the second flow path of the fluid in the first catalyst case, the first flow path, the mounting position side of the sensor with respect to the second flow path, the displacement width of the opposite side facing the mounting position is provided so as to be larger than the displacement width.Type: ApplicationFiled: August 7, 2023Publication date: April 25, 2024Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Fumiya KURASHITA
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Publication number: 20240133335Abstract: An aircraft propulsion system and method of cooling the same are provided. The system includes a hydraulic pump, an intermittent IC engine, a hydraulic motor, an engine oil pump, and a cooling system. The intermittent IC engine drives the hydraulic pump. The hydraulic motor is powered by the hydraulic pump and drives a propulsor fan. The cooling system includes a first heat exchanger (AIR-EO HEX) and a second heat exchanger (EO-HF HEX). The AIR-EO HEX transfers heat between flows of engine oil and ambient air. The EO-HF HEX transfers heat between flows of engine oil and hydraulic fluid. The hydraulic pump provides motive force to cause the hydraulic oil to pass through the EO-HF HEX and back to the at least one hydraulic pump. The engine oil pump provides motive force to pass the engine oil to and through the AIR-EO HEX, the EO-HF HEX, and the intermittent IC engine.Type: ApplicationFiled: October 20, 2022Publication date: April 25, 2024Inventor: Richard Freer
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Publication number: 20240133336Abstract: The thermostat device has a housing, a valve body provided around the periphery of a thermo-element inserted inside the housing, and a frame that supports one end of a coil spring that biases the valve body, wherein the housing has a hollow body having an opening at one end, a pair of legs rising from the opening edge of the body, and a hooking portion protruding inwardly at the tip of the legs; the hooking portion has an engaged portion located in the center of the width direction of the legs and an auxiliary portion connected to the engaged portion and located at both ends of the width direction of the legs, wherein an end face of the root side of the legs in the engaged portion is located farther from the tip of the legs than an end face of the leg-root side in the auxiliary portion.Type: ApplicationFiled: November 11, 2021Publication date: April 25, 2024Inventors: Tetsuya NISHIMURA, Masayuki NUMATA
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Publication number: 20240133337Abstract: The present disclosure relates to an internal combustion engine, comprising: at least one cylinder; two charge-exchange ports per cylinder, a first charge-exchange port being an inlet port, and a second charge-exchange port being an outlet port; and one spark plug and one prechamber spark plug per each cylinder.Type: ApplicationFiled: February 9, 2022Publication date: April 25, 2024Inventors: Alexander Eichhorn, Alexander Hettinger
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Publication number: 20240133338Abstract: A turbocharging assembly is described. The turbocharging assembly includes a compressor having a compressor wheel and a turbine having a turbine wheel. The turbine wheel and the compressor wheel are mounted back-to-back on a shaft. The shaft is coupled to a power converter provided in front of the compressor wheel. Additionally, the turbocharging assembly includes a housing extension encasing the power converter. The housing extension is connected with a compressor housing. The power converter includes a rotor and a stator. The stator is mounted to the housing extension. Further, the turbocharging assembly includes a filter silencer arranged between the compressor and the power converter. Yet further, the turbocharging assembly includes a blower mounted to the shaft. The blower is arranged at a side of the power converter facing away from the compressor.Type: ApplicationFiled: March 4, 2022Publication date: April 25, 2024Inventor: Alessandro ZUCCHELLI
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Publication number: 20240133339Abstract: A propulsion unit including: a gas generator including a compressor, a combustion chamber, a turbine, at least two compressed-air propulsion modules, each propulsion module including: a fan, a compressed-air turbine configured to drive the rotation of the fan, a manifold allowing the respective turbines of the compressed-air propulsion modules to be supplied with compressed air, wherein the manifold is configured to collect and mix: at least a portion of the flow that has passed through the combustion chamber of the gas generator, typically as it leaves the turbine, and at least one bypass flow, the bypass flow being a flow of air which is not passed through the combustion chamber of the gas generator.Type: ApplicationFiled: October 13, 2020Publication date: April 25, 2024Applicants: INSTITUT SUPERIEUR DE L'AERONAUTIQUE ET DE L'ESPAC, SAFRAN, SAFRAN AIRCRAFT ENGINESInventors: Patrick GONIDEC, Miguel Angel AGUIRRE, Sébastien DUPLAA, Bernard ROBIC, Benoit RODRIGUEZ, Nicolas Jérôme Jean TANTOT
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Publication number: 20240133340Abstract: A combined gas turbine engine and hydrogen fuel cell system includes a hydrogen fuelled gas turbine engine, a cryogenic liquid hydrogen fuel tank, a first fuel offtake configured and arranged to divert a portion of hydrogen fuel from a main fuel conduit, a burner configured and arranged to burn the portion of hydrogen fuel diverted from the main fuel conduit, a heat exchanger configured and arranged to transfer heat from exhaust gasses produced by the burner to hydrogen fuel in the main fuel conduit, a second fuel offtake arranged to divert a portion of hydrogen fuel from the main fuel conduit downstream of the heat exchanger, and a hydrogen fuel cell configured and arranged to produce electric power using hydrogen fuel diverted from the second fuel offtake.Type: ApplicationFiled: October 12, 2023Publication date: April 25, 2024Applicant: ROLLS-ROYCE PLCInventors: Nicholas GRECH, Chloe J. PALMER, Jacopo TACCONI
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Publication number: 20240133341Abstract: A combined cycle power plant (CCPP) includes a heat recovery steam generator (HRSG) that includes a first economizer and a condensate supply line. The HRSG receives a flow of exhaust gas from the turbine section. The CCPP further includes a fuel heating system that has a fuel supply line and a high temperature heat exchanger. The fuel supply line is fluidly coupled to the combustion section. The high temperature heat exchanger is disposed in thermal communication on the fuel supply line. A high temperature input line fluidly couples the high temperature heat exchanger to the first economizer of the HRSG such that the high temperature heat exchanger receives water from the first economizer. A recirculation line fluidly coupling the high temperature heat exchanger to the condensate supply. A hydro turbine is disposed on the recirculation line.Type: ApplicationFiled: October 24, 2022Publication date: April 25, 2024Inventor: Raub Warfield Smith
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Publication number: 20240133342Abstract: A gas turbine engine including a rotating shaft and a bearing assembly. The bearing assembly is configured to support the rotating shaft. The bearing assembly has a first bearing and a second bearing. The first bearing is configured to support an axial load of the rotating shaft when a forward thrust of the rotating shaft is greater than ten percent. The second bearing is configured to support the axial load of the rotating shaft when a thrust of the rotating shaft is between ten percent forward thrust and ten percent aft thrust, inclusive of the end points.Type: ApplicationFiled: October 23, 2022Publication date: April 25, 2024Inventors: Ravindra Shankar Ganiger, Kudum Shinde, Surender Reddy Bhavanam, Weize Kang
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Publication number: 20240133343Abstract: A gas turbine engine fuel system includes a fuel offtake configured to divert a portion of hydrogen fuel from a main fuel conduit, a burner configured to burn the portion of hydrogen fuel diverted from the main fuel conduit, a heat exchanger configured to transfer heat from exhaust gasses produced by the burner to hydrogen fuel in the main fuel conduit and a power recovery device configured to extract power from exhaust gasses of the burner downstream of the heat-exchanger.Type: ApplicationFiled: October 12, 2023Publication date: April 25, 2024Applicant: ROLLS-ROYCE PLCInventors: Chloe J. PALMER, Jacopo TACCONI, Nicholas GRECH
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Publication number: 20240133344Abstract: A fire detection system for a gas turbine system including fire risk zones is provided. The system includes a pipe intake port proximate to each of the fire risk zones within a gas turbine system enclosure, and a manifold in fluid communication with the pipe intake port. A temperature sensor is positioned in the manifold upstream of a cooling system. The cooling system reduces a temperature of a gas flow in the manifold, allowing use of an aspirating smoke detector. An aspirating smoke detector, which is downstream of the cooling system, draws in the gas flow and detects smoke in the gas flow. A controller generates a first alarm in response to the temperature sensor detecting a temperature of the gas flow exceeding a temperature threshold, or a second alarm in response to the aspirating smoke detector detecting smoke in the gas flow.Type: ApplicationFiled: December 29, 2022Publication date: April 25, 2024Inventors: Rajan Prakash, Shivani Agarwal
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Publication number: 20240133345Abstract: A gas turbine engine defines an axial direction and a radial direction and comprises a turbomachine having an unducted primary fan, a core engine a combustor casing enclosing a combustor and defining an outer surface, a core cowl surrounding at least a portion of the core engine. The outer surface of the core cowl defines a peak cowl diameter (D) in the radial direction, and the outer surface of the combustor casing defines a maximum combustor casing diameter (d) along the radial direction. The core engine defines an overall core axial length (L) along the axial direction and an under-core cowl axial length (L1) along the axial direction. The gas turbine engine defines a core cowl diameter ratio (CDR) equal to the peak cowl diameter (D) divided by the maximum combustor casing diameter (d) and a core cowl length ratio (CLR) equal to the under-core cowl axial length (L1) divided by the overall core axial length (L). The CDR is between 2.7 and 3.5 and the CLR is between 0.25 and 0.50.Type: ApplicationFiled: October 24, 2022Publication date: April 25, 2024Inventors: Daniel John Oehrle, Randy M. Vondrell
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Publication number: 20240133346Abstract: An accessory gearbox for an aircraft turbine engine having a radial shaft connecting a high-pressure body of the turbine engine to a gear train having at least one mixed shaft coupled to a high-speed device. The accessory gearbox has a clutch system having a low-speed motor mounted thereon and configured to mate with the mixed shaft such that: in an engaged position of the clutch, the low-speed motor is coupled to the mixed shaft so as to drive the high-pressure body at low speed when the turbine engine is stationary and, in a disengaged position of the clutch, the low-speed motor is decoupled from the mixed shaft so as to be protected when the turbine engine is in operation.Type: ApplicationFiled: February 24, 2022Publication date: April 25, 2024Applicant: SAFRAN AIRCRAFT ENGINESInventor: Frédéric Dautreppe
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Publication number: 20240133347Abstract: A differential gearbox assembly for a turbine engine having a fan shaft and a drive shaft. The differential gearbox assembly includes an epicyclic gear assembly coupling the fan shaft to the drive shaft. The epicyclic gear assembly includes a sun gear, a planet gear constrained by a planet carrier, and a ring gear. The sun gear is coupled to the drive shaft and the planet carrier is coupled to the fan shaft. The sun gear, the planet gear, and the ring gear all rotate about the drive shaft. The differential gearbox assembly includes an electric machine assembly that includes an input coupled to the epicyclic gear assembly. The electric machine assembly provides mechanical power to the fan shaft through the epicyclic gear assembly.Type: ApplicationFiled: December 29, 2023Publication date: April 25, 2024Inventors: Ravindra Shankar Ganiger, Andrea Piazza, Gontla Nagashiresha, Bugra H. Ertas, Sanjeev Jha
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Publication number: 20240133348Abstract: A controller for a gas turbine engine comprises a fuel flow sensor interface for receiving input signals indicative of a fuel flow into a combustor, a power output sensor interface for receiving input signals indicative of power output of an electrical generator driven via the gas turbine engine, a bleed valve interface for providing an output signal to a bleed valve that controls bleed air to vent a compressor of the gas turbine engine, and memory having stored therein instructions for determining functionality of the bleed valve based on evaluating efficiency of the gas turbine engine when the output signal is issued. A method comprises sensing efficiency of a gas turbine engine in response to actuation of a compressor bleed valve, comparing the efficiency to baseline efficiency, and outputting indicia of a differential between the efficiency and the baseline efficiency as an indication of operability of the first bleed valve.Type: ApplicationFiled: October 18, 2022Publication date: April 25, 2024Inventor: Ruurd Vanderleest
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Publication number: 20240133349Abstract: An energy generator includes: an internal combustion engine; a power generator that is driven by the internal combustion engine to generate operating power; a communication interface that receives information given from working equipment; a supply interface that supplies the operating power to the working equipment; and circuitry configured to control at least one of the internal combustion engine and the power generator based on information given from the working equipment through the communication interface.Type: ApplicationFiled: February 17, 2021Publication date: April 25, 2024Inventor: Yoshimoto MATSUDA
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Publication number: 20240133350Abstract: The present disclosure relates to an internal combustion engine comprising at least one cylinder, four charge-exchange points per cylinder, wherein a first and a second charge-exchange port are each an inlet port, and wherein a third and a fourth charge-exchange port are each an outlet port, also comprising one spark plug and one prechamber spark plug per each cylinder.Type: ApplicationFiled: February 16, 2022Publication date: April 25, 2024Inventors: Alexander Eichhorn, Alexander Hettinger
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Publication number: 20240133351Abstract: A turbofan with a nacelle having a fixed structure, a mobile assembly bearing second blocking element and able to move between an advanced position and a withdrawn position, a set of deflectors able to move in translation between an advanced position and a withdrawn position, and an actuation system having a carriage, a blocking lever bearing first attachment element and able to move between a blocking position and a free position, and a transmission system configured to move the blocking lever from the blocking position to the free position when the mobile assembly reaches a tilting position between the advanced position and the withdrawn position.Type: ApplicationFiled: October 19, 2023Publication date: April 25, 2024Inventors: Michael BELIN, Lionel SILLIERES, Julie CAZALIS, Simon VANDERBAUWEDE, Samuel MAGNE
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Publication number: 20240133352Abstract: A Duplex Turbine Guide Vane (DTGV) assembly for a turbojet engine includes DTGVs arranged on a non-rotating guide vane ring configured to be positioned coaxially in apposition with a rotatable turbine wheel comprising turbine blades. Each of the DTGVs has an internal channel configured for receiving a gas and delivering the gas toward the turbine blades.Type: ApplicationFiled: October 8, 2023Publication date: April 25, 2024Inventors: John A Bossard, John L Bergmans
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Publication number: 20240133353Abstract: Provided is an engine device for which an increase in width can be suppressed due to the size of an EGR cooler. The engine device comprises: a cylinder block; a cylinder head; an exhaust manifold; and an EGR cooler. The cylinder head is disposed above the cylinder block. The exhaust manifold is disposed on one side surface of the cylinder head and circulates exhaust gas exhausted from the cylinder head. The EGR cooler is disposed below the exhaust manifold and cools EGR gas constituting a portion of the exhaust gas exhausted from the exhaust manifold.Type: ApplicationFiled: March 15, 2022Publication date: April 25, 2024Applicant: YANMAR HOLDINGS CO., LTD.Inventors: Masataka Uchibori, Hiroaki Naganawa
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Publication number: 20240133354Abstract: An engine system includes an internal combustion engine with two sets of cylinders, a turbocharger, two exhaust conduits providing fluid communication between the turbocharger and an exhaust of the cylinders, and an exhaust gas recirculation system including a recirculation valve. Two proportional exhaust valves are adapted to control a flow of exhaust gas in the two exhaust conduits. An actuator includes an output component operating the recirculation valve and the two exhaust valves. In a neutral position, the two exhaust valves are open and the recirculation valve is closed. A first movement of the output component, from its neutral position towards a first position, open the recirculation valve and close a first of the two exhaust valve. A second movement, from the first position and in the same direction as the first movement, close the second exhaust valve and hold open the recirculation valve and closed the first exhaust valve.Type: ApplicationFiled: October 12, 2023Publication date: April 25, 2024Inventor: Bauvir Laurent
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Publication number: 20240133355Abstract: A fuel injector and a nozzle for a fuel injector is provided. The nozzle includes at least one spray hole that is formed through a hardened nozzle body. The nozzle body is hardened again after forming the at least one spray hole to hardened the nozzle body along the at least one spray hole.Type: ApplicationFiled: September 27, 2023Publication date: April 25, 2024Inventors: Romaine O. Edwards, Frank Husmeier, Darin Bartholomew, Manoj M. Thete
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Publication number: 20240133356Abstract: A lubricated high pressure fuel pump assembly is provided, comprising a fuel pump, a sealed enclosure and a pump lubrication circuit. The fuel pump includes a pump drive shaft via which the fuel pump is configured to be mechanically driven. The sealed enclosure is configured to surround a first portion of the pump drive shaft, wherein the first portion is exterior to the fuel pump. The pump lubrication circuit comprises a lubricant reservoir and a lubricant pump configured to pump lubricant from the lubricant reservoir to the pump drive shaft. The sealed enclosure is configured to prevent fluid leakage from the fuel pump via the first portion of the pump drive shaft and the lubricant reservoir is configured to collect the lubricant from the pump drive shaft, such that the lubricant is retained within the lubricated high pressure fuel pump assembly.Type: ApplicationFiled: March 11, 2022Publication date: April 25, 2024Applicant: Caterpillar Motoren GmbH & Co. KGInventor: Robert GRAUMÜLLER
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Publication number: 20240133357Abstract: A system for altering the flow of liquids is provided for altering flow properties of a liquid using a system of pathways organized in sections of varying properties. The system for altering the flow of liquids may include a basin section, thruster component, alteration section, flow section, turbine section, conveyance section, first pathway, second pathway and liquid-driven turbine. A method for altering flow properties of a liquid using a system of pathways organized in sections of varying properties using the system for altering the flow of liquids is also provided.Type: ApplicationFiled: December 12, 2023Publication date: April 25, 2024Inventor: Ayman Shata
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Publication number: 20240133358Abstract: The present invention relates to a leading edge protection for a wind turbine blade, wherein a leading edge axis of the leading edge protection is configured to be fitted on at least part of a leading edge of a wind turbine blade and the leading edge protection is configured to extend between the leading edge and a first edge downstream a first side of the wind turbine blade as well as between the leading edge and a second edge downstream a second side of the wind turbine blade, wherein the leading edge protection comprises a first part and wherein the first edge is configured to be non-parallel with the leading edge of the wind turbine blade along the first part of the leading edge protection. The present invention further relates to a wind turbine blade comprising the leading edge protection and a wind turbine comprising the wind turbine blade.Type: ApplicationFiled: February 14, 2022Publication date: April 25, 2024Inventors: Andreas HERRIG, Horacio BULACIO, Hans MINNEE
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Publication number: 20240133359Abstract: A mastless vertical axis wind turbine that comprises a plurality of sails that rotate about a vertical axis under the influence of wind. A platform is connected to and in tension with the plurality of sails at one or more points about the bottom of the plurality of the sails. Also, an external frame is connected to and in tension with the plurality of sails at one or more points about the top of the plurality of the sails. The external frame itself comprises a plurality of legs that converge above the plurality of sails at a central point about the vertical axis of rotation and extend beyond the path swept by the plurality of sails. A coupling mechanism connects one or more of the plurality of legs to the plurality of sails and allows the sails to rotate about the vertical axis of rotation while the legs remain stationary.Type: ApplicationFiled: January 4, 2024Publication date: April 25, 2024Inventor: Steven C. Hench
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Publication number: 20240133360Abstract: The present disclosure relates to methods for protecting one or more components of a wind turbine during yawing of the wind turbine. The present disclosure further relates to wind turbines. A method for protecting one or more components of a wind turbine during yawing of the wind turbine comprises monitoring one or more parameters indicative of a yaw torque required to position a wind turbine rotor with respect to a prevailing wind direction, detecting that one or more of the parameters indicative of yaw torque reach or exceed a predetermined threshold, and in response to the detection, reducing load imbalance in the wind turbine rotor.Type: ApplicationFiled: October 22, 2023Publication date: April 25, 2024Inventor: Marc MAYMO GARRIDO