Patents Issued in May 14, 2024
  • Patent number: 11982197
    Abstract: Device for distributing oil from a rolling bearing (8) for an aircraft turbine engine, comprising: —a rolling bearing (8), —an oil distributor ring (5) and —an annular track (26) of a dynamic seal (22), characterised in that it further comprises a nut (16) screwed on to a thread (5d) of the distributor ring and bearing axially against an axial end of the inner ring so as to clamp it axially, and in that the annular track is configured to bear axially against the distributor ring and comprises rotating locking elements (27) engaging with the additional elements (28) of the nut.
    Type: Grant
    Filed: March 22, 2021
    Date of Patent: May 14, 2024
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Christophe Marcel Lucien Perdrigeon, Didier Gabriel Bertrand Desombre, Regis Eugene Henri Servant
  • Patent number: 11982198
    Abstract: A component (1, 2) for supporting at least one bearing (3) for a turbine engine (10) comprising: two coaxial walls, internal (4) and external (5) walls respectively, defining a gas flow vein (6) between them and interconnected by a row of arms (7); an external ferrule (50) comprising an internal peripheral edge (51) connected to the external wall (5) and an external peripheral edge (52) connected to an external mounting flange (53); an internal ferrule (40) comprising an external peripheral edge (41) connected to the internal wall (4) and an internal peripheral edge (42) comprising an internal mounting flange (43); at least one of the ferrules (4, 5), which at the peripheral edge (41, 51) thereof is connected to the corresponding wall (4, 5), having a general shape which is corrugated about an axis (X-X) of the component (1, 2).
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: May 14, 2024
    Assignee: SAFRAN HELICOPTER ENGINES
    Inventors: Albert Josse, Lois Pierre Denis Vive, Jean-Maurice Casaux-Bic, Yvan Ludovic Lameignere
  • Patent number: 11982199
    Abstract: A turbocharger is provided with: a rotational shaft; a rolling bearing rotatably supporting the rotational shaft; an oil film damper disposed radially outward of an outer ring of the rolling bearing; and a housing having a first axial retaining portion and a second axial retaining portion, disposed adjacent to both ends of the oil film damper in the axial direction, respectively, for restricting movement of the outer ring in the axial direction. An axial end surface of the outer ring, or a facing surface of the first axial retaining portion or the second axial retaining portion facing the axial end surface of the outer ring has: a coefficient of static friction smaller than that of a portion of the housing excluding the first axial retaining portion and the second axial retaining portion; or has a recess where oil of the oil film damper can enter.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: May 14, 2024
    Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Yoshitomo Noda, Takuya Arakawa, Yosuke Dammoto, Shuichi Isayama, Hiroaki Takeuchi
  • Patent number: 11982200
    Abstract: A component configured for use in a gas turbine engine, including: a wall portion formed from sheet metal and extending between two end portions, the wall portion being stamped with a plurality of instances of a pre-defined three dimensional shape structured to increase a stiffness of the wall portion in a direction normal to the wall portion, each instance of the plurality of instances of the pre-defined three dimensional shape being orientated at 90 degrees with respect to each other adjacent instance of the plurality of instances, wherein the three dimensional shape has a pair of curved distal peripheral end portions that are at opposite ends of the three dimensional shape and each pair of curved distal peripheral end portions are connected to each other by a pair of opposing concave peripheral portions that curve towards each other at a mid-section.
    Type: Grant
    Filed: June 23, 2023
    Date of Patent: May 14, 2024
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Krzysztof Gajowniczek, Pawel Helmecki
  • Patent number: 11982201
    Abstract: An engine assembly defining an axial direction (A) and including a gearbox, an engine core including at least one rotor, and a flexible coupling shaft having a first end and a second end along the axial direction (A). The first end of the flexible coupling shaft is connected to the engine core and the second end of the flexible coupling shaft is connected to the gearbox. A damper system is positioned at the second end of the flexible coupling shaft. The damper system is configured to reduce vibrations to the flexible coupling shaft during operation of the engine assembly.
    Type: Grant
    Filed: December 15, 2021
    Date of Patent: May 14, 2024
    Assignee: GE AVIO S.R.L.
    Inventors: Marco Garabello, Simone Iurlaro, Salvatore Garofalo, Alessio Gargioli, Giuseppe Argentieri
  • Patent number: 11982202
    Abstract: A rotor disc has diametrically outer surfaces, a diametrically inner surface, a plurality of blade root grooves recessed diametrically inward from the diametrically outer surfaces and aligned in a circumferential direction, and a plurality of hole groups formed in each of the plurality of blade root grooves and aligned in the circumferential direction. Each of the plurality of hole groups has a hole including a cooling orifice penetrating from the diametrically inner surface through to the diametrically outer surface. The width of each of the plurality of hole groups in the circumferential direction is greater than the width of each of the plurality of hole groups in an axial direction and smaller than a minimum gap among gaps between the plurality of hole groups in the circumferential direction.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: May 14, 2024
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Kazuki Kitagawa, Shinya Hashimoto
  • Patent number: 11982203
    Abstract: A method comprises: flowing a potted component in a liquid state over a tip of an airfoil, the tip of the airfoil having a coating disposed thereon, the coating comprising a metal plating and a plurality of protrusions, each protrusion in the plurality of protrusions extending from the metal plating; allowing the potted component to harden to form a hardened potted component; and removing the hardened potted component from the tip of the airfoil.
    Type: Grant
    Filed: June 22, 2023
    Date of Patent: May 14, 2024
    Assignee: RTX CORPORATION
    Inventors: Ron I. Prihar, Tracy A. Propheter-Hinckley
  • Patent number: 11982204
    Abstract: A turbomachine part or assembly of parts includes a first blade and a second blade, and platform from which the first blade and the second blade extend, The platform has, between a pressure side of the first blade and a suction side of the second blade a non-axisymmetric surface defining at least one fin, and a transverse section of the fin is asymmetric. The transverse section includes a first and a second oblique faces joining at a dorsal edge, the first oblique face is oriented toward the pressure side of the first blade, the second oblique face is oriented toward the suction side of the second blade, and the first oblique face has a steeper slope than the second oblique face.
    Type: Grant
    Filed: January 19, 2021
    Date of Patent: May 14, 2024
    Assignee: SAFRAN
    Inventors: William Henri Joseph Riera, Gabriel Jacques Victor Mondin
  • Patent number: 11982205
    Abstract: An airfoil for a turbine engine having a spar assembly. The spar assembly including a composite spar, a metallic hub, and a composite body. The metallic hub can receive a portion of the composite spar at an interior surface to define an overlapping region. The composite body is located at the overlapping region.
    Type: Grant
    Filed: February 20, 2023
    Date of Patent: May 14, 2024
    Assignee: General Electric Company
    Inventors: Nitesh Jain, Abhijeet Jayshingrao Yadav, Balaraju Suresh, Nicholas Joseph Kray
  • Patent number: 11982206
    Abstract: A method of cooling a vane of a turbine is provided. The turbine includes an airfoil, an outer shroud disposed at an outer radial end of the airfoil and an inner shroud, the airfoil including a plurality of air channels extending along the radial direction of the turbine, the air channels comprising a first air channel and a second air channel. A cooling air is caused to flow inside the first air channel to cool the first air channel, then cool one of the outer shroud and the inner shroud. A cooling air is caused to flow inside the second air channel to cool the second air channel, then cool the other one of the outer shroud and the inner shroud.
    Type: Grant
    Filed: March 11, 2022
    Date of Patent: May 14, 2024
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Satoshi Mizukami, David Allen Flodman, Satoshi Hada
  • Patent number: 11982207
    Abstract: A method for repairing a tip portion of a turbine component having a structural defect is provided. The method includes removing a damaged section in turbine component with a structural defect in a tip portion of the turbine component. A pre-sintered preform is provided including a first portion having a first composition and a second portion having a second composition. The pre-sintered preform is configured to mate with an upper surface of a remaining portion of the turbine component. The method also includes applying the pre-sintered preform to the upper surface, wherein the PSP comprises a superalloy material and a braze material. The PSP and the remaining portion of the turbine component are subjected to a brazing process to melt the braze material and fill in the structural defect.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: May 14, 2024
    Assignee: Siemens Energy, Inc.
    Inventors: Atul L. Navale, James A. Yarbrough, Somesh J. Ghunakikar, Ivan F. Oliver Vargas
  • Patent number: 11982208
    Abstract: An impeller includes a metallic inducer portion and a polymeric exducer portion connected to the metallic inducer portion. The metallic inducer portion includes an inducer hub, inducer blades attached to the inducer hub, and an inducer coupling on an end of the inducer hub. The polymeric exducer portion includes an exducer hub, exducer blades attached to the exducer hub, and an exducer coupling on an end of the exducer hub. The exducer coupling connects to the inducer coupling.
    Type: Grant
    Filed: October 7, 2022
    Date of Patent: May 14, 2024
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Viktor Kilchyk, Brent J. Merritt
  • Patent number: 11982209
    Abstract: A blade for an aircraft gas turbine engine includes, in a longitudinal direction, a blade root, a shank and an aerofoil body, the aerofoil body extending in the longitudinal direction between the shank and a blade tip and in a transverse direction between a leading edge made of metal material and a trailing edge. The blade includes a blade core made of composite material having a three-dimensional woven fibrous reinforcement forming the blade root, the shank and a part of the aerofoil body. The blade also includes a skin made of composite material having a two-dimensional woven fibrous reinforcement surrounding the aerofoil body part of the blade core, the skin being interposed between the leading edge made of metal material and a front edge of the aerofoil body part of the blade core to define a thinned leading edge portion, the skin including one or more two-dimensional woven plies.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: May 14, 2024
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Clément Pierre Postec, Thomas Alain De Gaillard, Teddy Fixy, Eddy Keomorakott Souryavongsa
  • Patent number: 11982210
    Abstract: A gas turbine engine has transition ducts. Between two adjacent transition ducts there are transition side grooves that extend in a radial direction. A side seal is radially inserted into the transition side grooves. The side seal resiliently engages the transition side grooves to accommodate a thermo-mechanical stress that develops between the two adjacent transition ducts.
    Type: Grant
    Filed: January 13, 2022
    Date of Patent: May 14, 2024
    Assignee: Siemens Energy Global GmbH & Co. KG
    Inventor: Anthony L. Schiavo
  • Patent number: 11982211
    Abstract: Systems, methods, and control systems for a switching rocker arm assembly are disclosed. A switching rocker arm (10) engages a valve (29), the switching rocker arm (10) is movable by contact with a cam (60) having a lift portion (59) and a base circle (58). The switching rocker arm (10) comprises an inner arm (20), an outer arm (12) pivotably secured to the inner arm (20) and having a latch bore, and a latch pin (28) selectively movable between a first position where the latch pin (28) does not contact the inner arm (20), and a second position wherein the latch pin (28) contacts the inner arm (20). A solenoid assembly (500) is energized while the rocker arm is in contact with the lift portion (59) of the cam. The solenoid assembly is direct-acting and overhead and is calibratable with respect to the rocker arm.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: May 14, 2024
    Assignee: Eaton Intelligent Power Limited
    Inventors: Andrei D. Radulescu, Andrew Lee
  • Patent number: 11982212
    Abstract: A hollow engine valve includes a shaft portion and an umbrella portion of which diameter is enlarged to form an umbrella shape to be provided on a base end of the shaft portion, a cooling material being enclosed in a hollow portion that is at least formed inside the shaft portion. The shaft portion comprises a first shaft portion in a tip end side, a second shaft portion that is provided in a base end side to have an outer diameter larger than that of the first shaft portion, and a stepped portion formed by a difference in the outer diameters between the first and second shaft portions. A wall thickness of the stepped portion is larger than that of the second shaft portion.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: May 14, 2024
    Assignee: FUJI OOZX INC.
    Inventors: Takaaki Kumagai, Koji Kushima
  • Patent number: 11982213
    Abstract: The present disclosure discloses a lubricating method of a lubrication system of an engine. A first check valve unidirectionally leading to an oil chamber is arranged between a crankshaft chamber and the oil chamber; a first lubricating oil circuit that communicates the oil chamber and the cam chamber is arranged in the crankcase, and the cam chamber is communicated with an upper rocker arm chamber through a tappet hole; an oil pipe connected to the first lubricating oil circuit is arranged in the oil chamber; when the pressure in the crankshaft chamber is increased, the first check valve is opened, engine oil enters the oil chamber from the crankshaft chamber; and the pressure in the oil chamber is increased accordingly, the engine oil enters the first lubricating oil circuit and the cam chamber through the oil pipe for lubricating the cam chamber.
    Type: Grant
    Filed: December 29, 2022
    Date of Patent: May 14, 2024
    Assignee: YONGKANG PUYUAN TOOLS CO., LTD.
    Inventor: Quanyu Hu
  • Patent number: 11982214
    Abstract: An oil inlet of a motor communicates with a first end of an oil pump through a first passage. A first oil sump of the motor communicates with a second end of the oil pump through a second passage. When the oil pump is rotating, a port at the first end is an oil outlet of the oil pump, and a port at the second end is an oil inlet of the oil pump. The first end of the oil pump communicates with a second oil sump through a third passage with a first valve. The second end of the oil pump communicates with the second oil sump through a fourth passage with a second valve. In this way, when the oil pump is reversing, coolant may be input into a motor cavity and accumulate in the motor cavity, so as to cool motor components in an immersion manner.
    Type: Grant
    Filed: May 24, 2023
    Date of Patent: May 14, 2024
    Assignee: Huawei Digital Power Technologies Co., Ltd.
    Inventors: Jiangang Wang, Chaoqiang Wu, Hongbing Liu, Jun Chen, Hu Zhong
  • Patent number: 11982215
    Abstract: An exhaust device for an internal combustion engine includes an exhaust manifold including branch pipe portions respectively connected to cylinders of the internal combustion engine in which exhaust strokes are executed at different timings, and a collecting pipe portion to which the branch pipe portions are collected and connected at a downstream side of the branch pipe portions, a catalyst provided at a downstream side of the collecting pipe portion in the exhaust manifold, an exhaust pipe provided at a downstream side of the catalyst, a sensor detecting a state of exhaust gas and provided in the exhaust pipe, and a connecting wall portion connecting the catalyst and the exhaust pipe and extending in a different direction with respect to a first central axis of the catalyst along a flow direction of the exhaust gas.
    Type: Grant
    Filed: December 22, 2022
    Date of Patent: May 14, 2024
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN TAKAOKA CO., LTD.
    Inventors: Noriyuki Yamanaka, Takahisa Koishikawa, Tomo Asano
  • Patent number: 11982216
    Abstract: An internal combustion engine emissions reduction system in which a emissions passing through a second catalyst element having a second catalyst function are mixed with emissions passing through a first catalyst element having a first catalyst function.
    Type: Grant
    Filed: December 6, 2022
    Date of Patent: May 14, 2024
    Inventor: David A Endrigo
  • Patent number: 11982217
    Abstract: An internal combustion engine, ICE, system for a vehicle includes an ICE operable on hydrogen; an exhaust gas aftertreatment system, EATS, arranged in an exhaust gas circuit downstream the ICE, said EATS having at least one NOx reduction device and/or a particulate filter, and an exhaust gas water recovery, EWR, system arranged at least partly downstream the EATS in the exhaust gas circuit, said EWR system having at least a primary exhaust cooler and a water separator; a waste heat recovery, WHR, system for providing a rankine cycle, said WHR system being arranged to transport a working fluid, WF, through the primary exhaust cooler of the EWR system; a low temperature coolant circuit in fluid communication with an exhaust condenser of the EWR system; and a water management system arranged to collect water from the EWR system and transport water to at least one combustion chamber of the ICE.
    Type: Grant
    Filed: June 7, 2023
    Date of Patent: May 14, 2024
    Assignee: VOLVO TRUCK CORPORATION
    Inventors: Lennart Andersson, Fredrik Rahm
  • Patent number: 11982218
    Abstract: An oxidation catalyst composite for abatement of exhaust gas emissions from a lean burn engine is provided, the catalyst composite including a carrier substrate having a length, an inlet end and an outlet end, and an oxidation catalyst material coated on the carrier substrate. The oxidation catalyst material can include a first layer and a second layer. The first layer can include a first oxygen storage component that includes ceria and is impregnated with a palladium (Pd) component and a second component including one or more of magnesium (Mg), rhodium (Rh), and platinum (Pt). The second layer can include a refractory metal oxide component impregnated with platinum (Pt) and palladium (Pd), wherein the ratio of Pt to Pd is in the range of about 0:10 to about 10:0.
    Type: Grant
    Filed: January 6, 2022
    Date of Patent: May 14, 2024
    Inventors: Shiang Sung, Patrick William McCanty, Markus Koegel, Susanne Stiebels
  • Patent number: 11982219
    Abstract: A multi-stage mixer includes a multi-stage mixer inlet, a multi-stage mixer outlet, a first flow device, and a second flow device. The multi-stage mixer inlet is configured to receive exhaust gas. The multi-stage mixer outlet is configured to provide the exhaust gas to a catalyst. The first flow device is configured to receive the exhaust gas from the multi-stage mixer inlet and to receive reductant such that the reductant is partially mixed with the exhaust gas within the first flow device. The first flow device includes a plurality of main vanes and a plurality of main vane apertures. The plurality of main vane apertures is interspaced between the plurality of main vanes. The plurality of main vane apertures is configured to receive the exhaust gas and to cooperate with the plurality of main vanes to provide the exhaust gas from the first flow device with a swirl flow.
    Type: Grant
    Filed: November 29, 2022
    Date of Patent: May 14, 2024
    Assignee: CUMMINS EMISSION SOLUTIONS INC.
    Inventors: Z. Gerald Liu, Apoorv Kalyankar, Achuth Munnannur, Niklas M. Schmidt, Roy W. Detra, Mihai Chiruta
  • Patent number: 11982220
    Abstract: Provided is a thermos-valve connecting body with which attachment work is simplified by integrating a plurality of thermos-valves. The thermos-valve includes: a housing; a thermos-element that includes a temperature-sensing unit that senses the temperature of a coolant, that opens and closes one flow path in accordance with the temperature of the coolant, and that is housed inside the housing; and a connecting part formed on the housing and attached to another thermos-valve. The thermos-valve connecting body enables one thermos-valve to be attached to a connecting part of the other thermos-valve by the connecting part formed on the housing, and the one thermos-valve and the other thermos-valve to be formed integrally.
    Type: Grant
    Filed: September 9, 2021
    Date of Patent: May 14, 2024
    Assignee: NIPPON THERMOSTAT CO., LTD.
    Inventor: Noriyasu Yajima
  • Patent number: 11982221
    Abstract: A centrifugal compressor includes: a housing including an intake flow path; a compressor impeller arranged in the intake flow path; an accommodation chamber formed upstream of the compressor impeller in a flow of intake air in the housing; a movable member arranged in the accommodation chamber; and an annular path formed in the housing, the annular path being connected to an outside of the housing, a heating medium supplied from the outside of the housing flowing through the annular path, at least a part of the annular path being located between the accommodation chamber and a leading edge of the compressor impeller.
    Type: Grant
    Filed: September 13, 2023
    Date of Patent: May 14, 2024
    Assignee: IHI Corporation
    Inventors: Atsushi Yonemura, Ryota Sakisaka, Kazuaki Nakamura
  • Patent number: 11982222
    Abstract: A wastegate valve device according to at least one embodiment is a wastegate valve device disposed on a bypass passage bypassing a turbine of a turbocharger arranged on an exhaust gas passage of an engine, including: a valve seat surface formed at an outlet of the bypass passage; and a wastegate valve body which includes a support arm supported rotatably about an axis and a valve body supported by the support arm, the valve body being configured to come into and out of contact with the valve seat surface in accordance with rotation of the support arm. In the wastegate valve device according to at least one embodiment, the valve seat surface is inclined with respect to a direction orthogonal to an axial direction of the bypass passage, as viewed from a direction of the above-described axis.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: May 14, 2024
    Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Kunihiro Tomikawa, Toru Hoshi, Takeshi Yasoshima, Naoto Tashiro
  • Patent number: 11982223
    Abstract: Methods and systems are provided for a turbocharger. In one example, a method includes adjusting one or more of a wastegate position and a position of vanes with operation of a turbocharger to reach a desired turbocharger speed via a controller. The method further includes adjusting engine operating parameters to reach the desired turbocharger speed.
    Type: Grant
    Filed: January 16, 2023
    Date of Patent: May 14, 2024
    Assignee: TRANSPORTATION IP HOLDINGS, LLC
    Inventors: Thomas Lavertu, Adam Klingbeil, James Robert Mischler
  • Patent number: 11982224
    Abstract: A crank mechanism for the use in an in-line boxer engine has at least two diametrically opposed cylinders, that has a crankshaft and the respective pistons as well as connecting rods for each cylinder of the in-line boxer engine, with the connecting rods cooperatively connecting the pistons with the crankshaft. Each of the connecting rods encompasses a respective piston connecting portion, at one end having bushings accepting a gudgeon pin. At the other end, the central connecting rod has a one-piece crankshaft bearing portion for the crankpin whereas the forked connecting rod has a crankshaft bearing portion with two spaced limbs resultant in bifurcated crankshaft bearing portions for the crankpin. The crankshaft possesses a cylindrical central middle crankpin, that is eccentric towards the crankshaft, onto which a cylindrical outer crank pin is immediately attached at each side without crank webs.
    Type: Grant
    Filed: October 26, 2022
    Date of Patent: May 14, 2024
    Inventor: Hendrik Pressmar
  • Patent number: 11982225
    Abstract: A hybrid drive system has two sources of driving power: a non-combustion drive system to provide mechanical torque and rotation to a driveshaft, and an opposed-piston, internal combustion engine configured to provide energy for the non-combustion drive system.
    Type: Grant
    Filed: March 6, 2023
    Date of Patent: May 14, 2024
    Assignee: Achates Power, Inc.
    Inventors: Fabien G. Redon, Ashwin A. Salvi
  • Patent number: 11982226
    Abstract: An exhaust pipe is fixed to an internal combustion engine. A proximal end of a sensor guide is fixed to the exhaust pipe. A lead extends from an exhaust gas temperature sensor through the inside of the sensor guide to the outside of the sensor guide. The lead is fixed to a body of a vehicle outside the sensor guide. A distal end of the sensor guide is located forward of the proximal end.
    Type: Grant
    Filed: June 13, 2023
    Date of Patent: May 14, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Daisuke Torii
  • Patent number: 11982227
    Abstract: Methods and systems are provided for a Brayton cycle system. In one example, a system for an air Brayton cycle includes a chamber that can receive a first energy source and a second energy source, a turbocharger, and a motor/generator coupled to a shaft of the turbocharger between a compressor and a turbine.
    Type: Grant
    Filed: January 27, 2023
    Date of Patent: May 14, 2024
    Assignee: TRANSPORTATION IP HOLDINGS, LLC
    Inventor: Christopher Homison
  • Patent number: 11982228
    Abstract: The present disclosure provides pumped heat energy storage systems that can be used to store and/or extract electrical energy. A pumped heat energy storage system of the present disclosure can store energy by operating as a heat pump, whereby net work input can be used to transfer heat from the cold side to the hot side. A working fluid of the system is capable of efficient heat exchange with heat storage fluids on a hot side of the system and on a cold side of the system. Such pumped energy storage systems can be beneficially integrated with steam plants to provided heating to the steam cycle.
    Type: Grant
    Filed: August 12, 2021
    Date of Patent: May 14, 2024
    Assignee: MALTA INC.
    Inventors: Benjamin R. Bollinger, Bao Truong, Michael Geyer, Frederick Redell
  • Patent number: 11982229
    Abstract: A compact inlet design including a single bulkhead and/or an acoustic panel extending into nacelle lip region for noise reduction.
    Type: Grant
    Filed: August 9, 2021
    Date of Patent: May 14, 2024
    Assignee: The Boeing Company
    Inventors: Holly J. Thomas, Brian L. Riedel, Alexandre D. Curaudeau, David W. Foutch, Steve G. Mackin
  • Patent number: 11982230
    Abstract: A thermal management system for an aircraft comprises a first gas turbine engine, a first thermal bus, a first heat exchanger, and a chiller. The first thermal bus comprises a first heat transfer fluid, with the first heat transfer fluid being in fluid communication, in a closed loop flow sequence, between the first gas turbine engine, the first heat exchanger, and the chiller. Waste heat energy generated by the first gas turbine engine, is transferred to the first heat transfer fluid. The chiller is configured to lower a temperature of the first heat transfer fluid prior to the first heat transfer fluid being circulated through the gas turbine engine. The first heat exchanger is configured to transfer the waste heat energy from the first heat transfer fluid to a dissipation medium.
    Type: Grant
    Filed: August 14, 2023
    Date of Patent: May 14, 2024
    Assignee: ROLLS-ROYCE plc
    Inventors: Paul R Davies, David A Jones, Alexander T Joyce, Richard G Mochrie
  • Patent number: 11982231
    Abstract: A core structure for a providing a cooling passage in a gas turbine engine includes a core body that has a first cooling passage core. The first cooling passage core has a first width in a chord-wise direction near a first wall. A second width in the chord-wise direction near a second wall. A third width in the chord-wise direction between the first and second walls. The third width being smaller than the first and second widths to form an hourglass shape.
    Type: Grant
    Filed: March 7, 2023
    Date of Patent: May 14, 2024
    Assignee: RTX CORPORATION
    Inventor: Brandon W. Spangler
  • Patent number: 11982232
    Abstract: A turbine engine heat exchanger has: a manifold having a first face and a second face opposite the first face; a plurality of first plates along the first face, each first plate having an interior passageway; and a plurality of second plates along the second face, each second plate having an interior passageway. A first flowpath passing through the interior passageways of the first plates, the manifold, and the interior passageways of the second plates.
    Type: Grant
    Filed: January 23, 2023
    Date of Patent: May 14, 2024
    Assignee: RTX Corporation
    Inventors: James F. Wiedenhoefer, Russell J. Bergman, William P. Stillman, Patrick M. Hart
  • Patent number: 11982233
    Abstract: A propulsion system is provided and includes a solid hydride storage unit from which gaseous hydrogen fuel is drawn, an engine comprising a combustion chamber and a piping system to draw the gaseous hydrogen fuel from the solid hydride storage unit, the piping system being interposed between the solid hydride storage unit and the combustion chamber. The combustion chamber is receptive of the gaseous hydrogen fuel drawn from the solid hydride storage unit by the piping system and is configured to combust the gaseous hydrogen fuel to drive an operation of the engine.
    Type: Grant
    Filed: October 28, 2022
    Date of Patent: May 14, 2024
    Assignee: RTX CORPORATION
    Inventor: Steven M. O'Flarity
  • Patent number: 11982234
    Abstract: A heat exchanger, has: a heat exchanger core having an inlet, an outlet, at least one first conduit connecting the inlet to the outlet, and at least one second conduit in heat exchange relationship with the at least one first conduit; a bypass conduit connecting the inlet to the outlet while bypassing the at least one first conduit; and a valve in communication with the bypass conduit and having: a valve member movable between a closed position in which fluid communication through the valve and via the bypass conduit is blocked and an open position in which fluid communication through the bypass conduit and through the valve is permitted, the valve member defining an auxiliary passage, and a thermal fuse overlapping the auxiliary passage and blocking fluid communication through the valve member via the auxiliary passage, the thermal fuse having a melting temperature above a predetermined temperature of the fluid.
    Type: Grant
    Filed: February 13, 2023
    Date of Patent: May 14, 2024
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Kashif Mohammed, Benjamin Renaud
  • Patent number: 11982235
    Abstract: Disclosed is a fuel system for a gas turbine engine having a core exhaust and a combustion section. The system comprises a fuel pump for fluid communication with a fuel reservoir; a driving turbine for driving the fuel pump; and an air feed to drive the driving turbine, the air feed being fluidly connectable to the core exhaust of the gas turbine engine. Also disclosed is a fuel system comprising: a fuel pump for fluid communication with a fuel reservoir; a fuel line from the fuel pump for fluid communication with the combustion section of the gas turbine engine; and an air feed to a heat exchanger, the air feed being fluidly connectable to the core exhaust of the gas turbine engine, wherein the fuel line is in thermal communication with the air feed within a heat exchanger.
    Type: Grant
    Filed: March 10, 2023
    Date of Patent: May 14, 2024
    Assignee: Rolls-Royce plc
    Inventor: Jonathan E. Holt
  • Patent number: 11982236
    Abstract: A titanium-based component having a high heat capacity surface. The high heat capacity surface prevents or inhibits titanium fires. The component is titanium-based, forming the substrate, and includes a high heat capacity surface overlying the titanium substrate. A diffusion barrier is intermediate the titanium-based substrate and the high heat capacity surface. The diffusion barrier is non-reactive with both the titanium-based substrate and the high heat capacity surface. The system eliminates the formation of detrimental phases due to diffusion between the applied high heat capacity surface and the titanium substrate. The high heat capacity material has a coefficient of thermal expansion compatible with the coefficient of thermal expansion of the titanium-based substrate.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: May 14, 2024
    Assignee: General Electric Company
    Inventors: Alan Glenn Turner, Andrew Philip Woodfield, Leonardo Ajdelsztajn, Laura Cerully Dial
  • Patent number: 11982237
    Abstract: An embodiment of a torch igniter for a combustor of a gas turbine engine comprises a combustion chamber oriented about an axis, a cap defining an axially upstream end of the combustion chamber and oriented about the axis, a tip defining an axially downstream end of the combustion chamber, a structural wall coaxial with and surrounding the igniter wall, an outlet passage defined by the igniter wall within the tip, and a cooling system. The cooling system comprises an air inlet formed within the structural wall, a first flow path disposed between the structural wall and the igniter wall, and an aperture extending through the igniter wall transverse to the flow direction. The aperture directly fluidly connects the first flow path to the combustion chamber.
    Type: Grant
    Filed: November 9, 2022
    Date of Patent: May 14, 2024
    Assignee: Collins Engine Nozzles, Inc.
    Inventors: Jason Ryon, Lev Alexander Prociw
  • Patent number: 11982238
    Abstract: A gas turbine engine may include a high speed spool, a low speed spool, a first epicyclic gear system, and a second epicyclic gear system. Generally, the high speed spool mechanically connects a high pressure turbine to a high pressure compressor, and the low speed spool mechanically connects a low pressure turbine to at least one of a fan and a prop via the first epicyclic gear system and to a low pressure compressor via the second epicyclic gear system, according to various embodiments. The first epicyclic gear system and the second epicyclic gear system may include a common sun gear shaft.
    Type: Grant
    Filed: August 4, 2022
    Date of Patent: May 14, 2024
    Assignee: RTX CORPORATION
    Inventors: William G. Sheridan, Michael E. McCune
  • Patent number: 11982239
    Abstract: A bleed air control system is configured to vary the air pressure at the inlet of a gas turbine engine. The bleed air control system includes a first gas turbine engine configured to provide bleed air, a second gas turbine engine acting as an auxiliary power unit, and a bleed air control system configured to selectively provide bleed air from the first gas turbine engine to the second gas turbine engine.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: May 14, 2024
    Assignee: Rolls-Royce North American Technologies Inc.
    Inventors: Timothy Unton, Kirk C. Lefort, Paul K. Johnson, Andrew J. Eifert
  • Patent number: 11982240
    Abstract: An internal combustion engine assembly comprising a fuel reformer, a combustion chamber and a controller. The fuel reformer comprises a first channel and a second channel, a portion of the second channel being adjacent to a portion of the first channel to facilitate heat exchange between the first and second channels. The first channel comprises a catalyst selected to reform ammonia to hydrogen and nitrogen. The first channel is configured to receive ammonia, pass the ammonia over the catalyst and output a first mixture comprising ammonia, hydrogen and nitrogen. The composition of the first mixture depends on a first reformer temperature of the first channel. The combustion chamber is configured to receive the first mixture from the fuel reformer; to receive an oxidant; to combust the first mixture in the oxidant to produce heat and a first product; and to output the first product. The second channel of the fuel reformer is configured to receive the first product.
    Type: Grant
    Filed: April 17, 2023
    Date of Patent: May 14, 2024
    Assignee: Perkins Engines Company Limited
    Inventors: David M. Heaton, Mark J. Kennedy
  • Patent number: 11982241
    Abstract: Methods and systems are provided for a multi-fuel engine. In one example, a method includes adjusting a substitution ratio based on an intake manifold temperature. The method further including adjusting the intake manifold temperature to increase the substitution ratio.
    Type: Grant
    Filed: December 22, 2021
    Date of Patent: May 14, 2024
    Assignee: TRANSPORTATION IP HOLDINGS, LLC
    Inventors: Thomas Michael Lavertu, Adam Edgar Klingbeil, Eric Dillen
  • Patent number: 11982242
    Abstract: A determination method of opening characteristics of a fuel injector in an internal combustion engine comprising a knock sensor capable of generating a signal representative of vibrations. The knock sensor is used to determine the opening characteristics of the fuel injector. The determination method comprises acquiring the knock sensor signal over a predetermined measurement window synchronised on an injection control signal; and analysing the sensor signal over the measurement window in order to determine a first alternation of a first wave train and to determine the local maximum of the first alternation. The fuel injection is controlled based on the opening characteristic of the injector determined based on this local maximum.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: May 14, 2024
    Assignee: PHINIA DELPHI LUXEMBOURG SARL
    Inventors: Stéphane Randazzo, Cédric Bourgeois
  • Patent number: 11982243
    Abstract: A controller is used in an internal combustion engine provided with an EGR device recirculating some of exhaust gas flowing in an exhaust passage to an intake passage as EGR gas. The EGR device includes an EGR passage and an EGR valve. The controller includes a CPU that controls opening and closing of the EGR valve. The CPU executes determining process of determining whether the temperature of the internal combustion engine is about the same as the outside air temperature, and an axis displacement eliminating process of opening and closing the EGR valve when it is determined that the temperature of the internal combustion engine is about the same as the outside air temperature in the determining process during the operation stop of the internal combustion engine.
    Type: Grant
    Filed: April 17, 2023
    Date of Patent: May 14, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Keiichi Sato
  • Patent number: 11982244
    Abstract: This disclosure relates generally to emissions treatment devices including aftertreatment devices that may be utilized with internal combustion engines and, more particularly, to methods and systems for controlling in-cylinder dosing (ICD) and preventing fuel to oil dilution. A method of operating an engine converting an amount of heat needed for regenerating an aftertreatment device into a cam-stroke fueling strategy. The method further includes determining a number of the engine's cylinders to be active cylinders for introducing dosing fuel and calculating a total dosing fuel apportionment of the dosing fuel for each of the active cylinders based on the cam-stroke fueling strategy. A number of dosing shots per injector for each of the active cylinders can be calculated based on the total dosing fuel apportionment and an amount of dosing fuel is apportioned for each dosing shot according to the cam-stroke fueling strategy.
    Type: Grant
    Filed: December 16, 2022
    Date of Patent: May 14, 2024
    Assignee: Caterpillar Inc.
    Inventors: Michael Edward Sattler, Daniel Reese Puckett
  • Patent number: 11982245
    Abstract: A control apparatus for an internal combustion engine configured to perform control to remove a combustible residue adhered to an exhaust path of the internal combustion engine includes one or more processors and one or more memories communicatively coupled to the one or more processors. The one or more processors are configured to: obtain information on an exhaust temperature at a predetermined position in the exhaust path during operation of the internal combustion engine; determine whether the exhaust temperature or a predetermined reference temperature obtained based on the exhaust temperature has exceeded a threshold; and, when the exhaust temperature or the reference temperature has exceeded the threshold, increase an amount of oxygen to be supplied to the exhaust path to forcibly combust the combustible residue.
    Type: Grant
    Filed: May 30, 2023
    Date of Patent: May 14, 2024
    Assignee: SUBARU CORPORATION
    Inventor: Takumi Inaba
  • Patent number: 11982246
    Abstract: Methods and systems are provided for controlling fueling and mitigating knock in internal combustion engines, such as multi-fuel engines. In one example, a method may include monitoring a frequency of knock events corresponding to one or more engine cylinders, and dynamically increasing a substitution ratio while the frequency of knock events is less than a maximum action threshold. In some examples, the method may further include actively adjusting one or more engine operating conditions to decrease the substitution ratio responsive to a severity of knocking in the one or more engine cylinders being greater than or equal to a threshold severity.
    Type: Grant
    Filed: October 6, 2021
    Date of Patent: May 14, 2024
    Assignee: TRANSPORTATION IP HOLDINGS, LLC
    Inventors: Jacob Kenneth Pedder, James Robert Mischler