Patents Assigned to Rolls-Royce North American Technologies, Inc.
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Patent number: 12018581Abstract: A turbine wheel for a gas turbine engine including a compressor impeller and a radial inflow turbine integral to or attached to the compressor impeller is provided. A compressor turbine wheel including features to increase surface area of a surface of the compressor impeller and/or the radial inflow turbine and/or a passage to flow air between the compressor impeller and the radial inflow turbine is further provided. Methods for cooling radial inflow turbines integral to compressor impellers are further provided.Type: GrantFiled: July 5, 2022Date of Patent: June 25, 2024Assignee: Rolls-Royce North American Technologies Inc.Inventors: Douglas David Dierksmeier, Michael A. Karam
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Publication number: 20240200498Abstract: A combustor igniter port assembly is disclosed. The assembly may be installed in a combustor section of a gas turbine engine. The combustor igniter port assembly may include a combustor tower positionable to project radially outward from a combustor outer wall forming a radially outer surface of the combustor section. The combustor tower may be positionable on the combustor outer wall to encircle an aperture included in the combustor wall. The combustor tower may include a keeper on an inner wall of the combustor tower. The assembly may include a ferrule disposed radially outward from at least a portion of the combustor tower. The assembly may include a retention ring disposed within the keeper of the combustor tower. The retention ring may have elasticity to vary the diameter of the retention ring.Type: ApplicationFiled: December 16, 2022Publication date: June 20, 2024Applicant: Rolls-Royce North American Technologies Inc.Inventor: Kevin Sauer
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Patent number: 12012865Abstract: Methods for forming a blade for a gas turbine engine include altering the crystallographic texture of the blade in a discrete region relative to the surrounding locations of the blade to minimize flutter and/or mistune the blade by changing the natural frequency response of at least one mode of the blade.Type: GrantFiled: December 29, 2021Date of Patent: June 18, 2024Assignees: Rolls-Royce North American Technologies Inc., Rolls-Royce CorporationInventors: Michael Glavicic, Daniel E. Molnar, Jr., Matthew Jordan, Michael Meyer
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Publication number: 20240196525Abstract: A circuit board assembly may include a first printed circuit board having at least one trace plane. The trace plane may have a plurality of traces secured to a core material of the first printed circuit board. A security layer may be included, where the security layer at least partially covers the at least one trace plane such that the security layer forms at least one of a ground shield and an electromagnetic shield over the at least one trace plane. In some implementations, the security layer may be integral with a core material of the circuit board.Type: ApplicationFiled: December 12, 2022Publication date: June 13, 2024Applicants: Rolls-Royce North American Technologies Inc., Rolls-Royce CorporationInventors: Richard Joseph Skertic, John Joseph Costello
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Patent number: 12000292Abstract: A vane adjustment assembly includes a plurality of vanes, an annular ring coupled to the vanes, and a ring adjustment assembly. The ring adjustment assembly includes a base plate coupled to the ring and having a recess, a first collar removably arranged within the recess and having a cavity formed therein, a second collar removably arranged within the cavity, and a roller pin fixedly coupled to the second collar. The cavity is offset relative to the first collar and roller pin is offset relative to the second collar. The first collar can be selectively arranged at rotational positions within the recess and the second collar can be selectively arranged at rotational positions within the cavity such that the roller pin can be positioned at distinct positions each corresponding to a rotational position of the first collar and a rotational position of the second collar.Type: GrantFiled: December 30, 2022Date of Patent: June 4, 2024Assignee: Rolls-Royce North American Technologies Inc.Inventors: Ryan Humes, Andrew Eifert, Paulo Bazan
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Patent number: 12000590Abstract: A gas turbine engine including a compressor, a pressure-gain combustor, and a turbine is disclosed. The compressor compresses air drawn into the engine and delivers high pressure air to the pressure-gain combustor. In the pressure-gain combustor, fuel is mixed with the high pressure air and is ignited. Products of the combustion reaction in the pressure-gain combustor are directed into the turbine at a pressure greater than that of the air discharged by the compressor. In the turbine, work is extracted by actively cooled turbine blades to drive the compressor and, sometimes, an output shaft. In illustrated designs, some compressed air from the compressor is diverted around combustion in the combustor to provide active cooling for the turbine blades.Type: GrantFiled: July 31, 2023Date of Patent: June 4, 2024Assignee: Rolls-Royce North American Technologies Inc.Inventor: Timothy Unton
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Patent number: 12000297Abstract: A cooling system includes a nozzle guide vane endwall. The nozzle guide vane endwall includes a first wall and a second wall. The first wall includes a first opening that extends completely through the first wall into a primary flow path of a high-pressure turbine. The second wall includes a second opening and a third opening that extend completely through the second wall into an inner passageway of the nozzle guide vane endwall. The inner passageway is configured to direct a cooling fluid to the first opening and/or the second opening via at least the third opening. The first and second opening are configured to receive a plug or a probe.Type: GrantFiled: September 21, 2023Date of Patent: June 4, 2024Assignees: Rolls-Royce North American Technologies Inc., Rolls-Royce CorporationInventors: Jack Moody, Kevin P. Holley
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Patent number: 12000293Abstract: A vane adjustment assembly includes vanes, an annular ring coupled to the vanes, and a ring adjustment assembly. The adjustment assembly includes a base frame mounted on the ring and including a support body having a first cavity, a first collar removably arranged within the first cavity and having a second cavity formed therein, a second collar removably arranged within the second cavity, and a roller pin coupled to the second collar. The second cavity is offset relative to the first collar and the roller pin is offset relative to the second collar. The first and second collars can be selectively arranged at rotational positions within the first and second cavities such that the roller pin can be positioned at distinct roller pin positions each corresponding to a rotational position of the first collar and a rotational position of the second collar.Type: GrantFiled: December 30, 2022Date of Patent: June 4, 2024Assignee: Rolls-Royce North American Technologies Inc.Inventors: Ryan Humes, Andrew Eifert, Paulo Bazan
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Patent number: 11988151Abstract: Gas turbine engines include an engine frame defining an inner radial surface, a shaft rotatably mounted in the engine frame along a longitudinal axis, and an electric machine that includes a rotor coupled to the shaft and a stator coupled to the engine frame and defining an outer radial surface. In some gas turbine engines, the engine frame includes inlet and outlet fluid passages, each extending to a portion of the inner radial surface. The portion of the inner radial surface of the engine frame is spaced from the outer radial surface of the stator to form an annular fluid passage around the stator of an electric machine. The annular fluid passage is configured to direct a cooling fluid around the stator to remove heat from the stator. Some gas turbine engines include two or more positioning keys configured to fix the stator relative to the engine frame.Type: GrantFiled: March 7, 2023Date of Patent: May 21, 2024Assignee: Rolls-Royce North American Technologies, Inc.Inventors: Alan W. Smith, Sara Karaffa
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Patent number: 11982193Abstract: A vane adjustment assembly includes a plurality of vanes, an annular ring coupled to the vanes, and a ring adjustment assembly. The ring adjustment assembly includes a first inclined plate and a second inclined plate, the first inclined plate having an inclined surface facing a first inclined surface of the second inclined plate. A roller pin is coupled to a second inclined surface of the second inclined plate opposite the first inclined surface. The second inclined plate is adjustable in the circumferential direction such that the inclined surface of the first inclined plate and the first inclined surface of the second inclined plate slide against each other during adjustment of the second inclined plate so as to adjust an axial position and a circumferential position of the roller pin relative to the annular ring.Type: GrantFiled: December 30, 2022Date of Patent: May 14, 2024Assignee: Rolls-Royce North American Technologies Inc.Inventors: Ryan Humes, Andrew Eifert, Paulo Bazan
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Patent number: 11982239Abstract: 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: GrantFiled: December 17, 2021Date of Patent: May 14, 2024Assignee: Rolls-Royce North American Technologies Inc.Inventors: Timothy Unton, Kirk C. Lefort, Paul K. Johnson, Andrew J. Eifert
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Patent number: 11976569Abstract: In general, techniques are described for fused filament fabrication of abradable coatings. An additive manufacturing system comprising a substrate defining a major surface, a filament delivery device, and a computing device may be configured to perform various aspects of the techniques. The computing device may be configured to control the filament delivery device to deposit a filament on the substrate, the filament including a powder and a binder, wherein the binder is configured to be substantially removed from the filament and the powder includes a metal or alloy configured to be sintered to form an abradable layer.Type: GrantFiled: November 12, 2020Date of Patent: May 7, 2024Assignees: Rolls-Royce Corporation, Rolls-Royce North American Technologies, Inc.Inventors: Quinlan Yee Shuck, Scott Nelson, Raymond Ruiwen Xu, Brandon David Ribic, Matthew R. Gold
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Patent number: 11976564Abstract: A rotor assembly includes a first component, a second component, and a splined balance weight. The first component is arranged circumferentially around a central axis. The second component is arranged circumferentially around the central axis. The splined balance weight is located radially between the first component and the second component.Type: GrantFiled: March 30, 2023Date of Patent: May 7, 2024Assignee: Rolls-Royce North American Technologies Inc.Inventors: Eric Thurston, Jonathan Acker, Eric Engebretsen, Aaron Weishaar
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Patent number: 11977131Abstract: In some examples, an electrical power system includes a solid state power converter including a first set of switches on a source side of the solid state power converter and a second set of switches on a load side of the solid state power converter. The electrical power system also includes a power source connected to the source side of the solid state power converter and also includes a differential bus connected to the load side of the solid state power converter. The electrical power system further includes a controller configured to receive a first signal indicating a current at the source side and receive a second signal indicating a current at the load side. The controller is further configured to detect, based on a time derivative of the first signal and a time derivative of the second signal, a fault in the electrical power system.Type: GrantFiled: November 18, 2020Date of Patent: May 7, 2024Assignees: Rolls-Royce North American Technologies, Inc., Rolls-Royce Singapore Pte. Ltd.Inventors: Yu Yang, Chandana Jayampathi Gajanayake, David Loder, Amit Kumar Gupta
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Patent number: 11970973Abstract: An example system comprises an electric machine including a stator and a rotor, a cooling system configured to supply a cooling fluid to cool the electric machine, and a stator tube configured to contain the cooling fluid within a stator portion of the electric machine and prevent the cooling fluid from contacting the rotor.Type: GrantFiled: August 7, 2020Date of Patent: April 30, 2024Assignees: Rolls-Royce Corporation, Rolls-Royce Electrical Norway AS, Rolls-Royce North American Technologies, Inc.Inventors: Stephen Andrew Long, David Russell Trawick, Sean Morgan, Kolbeinn Kristjansson
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Patent number: 11970985Abstract: A gas turbine engine includes a fan and a fan case assembly. The fan includes a fan rotor configured to rotate about an axis of the gas turbine engine and a plurality of fan blades coupled to the fan rotor for rotation therewith. The fan case assembly extends circumferentially around the plurality of fan blades radially outward of the plurality of the fan blades.Type: GrantFiled: August 16, 2023Date of Patent: April 30, 2024Assignees: Rolls-Royce North American Technologies Inc., Rolls-Royce CorporationInventors: Robert W. Heeter, Daniel E. Molnar, Jr., Jonathan M. Rivers, Michael S. Krautheim
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Patent number: 11965528Abstract: A fan case assembly adapted for use with a gas turbine engine includes a case at extends circumferentially at least partway about an axis of the gas turbine engine and a plurality of vanes. The case is formed to define a plenum that extends circumferentially at least partway about the axis. The plurality of vanes are arranged in the plenum and spaced apart circumferentially about the axis to define a plurality of inlet openings in fluid communication with the plenum.Type: GrantFiled: August 16, 2023Date of Patent: April 23, 2024Assignees: Rolls-Royce North American Technologies Inc., Rolls-Royce CorporationInventors: Robert W. Heeter, Daniel E. Molnar, Jr., Jonathan M. Rivers
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Patent number: 11959669Abstract: Cooling systems and methods of operation are provided. The cooling system may include a two-phase pumped loop (TPPL). The two-phase pumped loop may include, a receiver, a pump downstream from the receiver, a heat load downstream from the pump, a TPPL tee downstream from the heat load, a TPPL check valve downstream from the TPPL tee, and a heat exchanger downstream from the TPPL check valve and upstream from the receiver. The cooling system may further include a vapor cycle system (VCS) loop. The vapor cycle system loop may include the receiver, a compressor downstream from a vapor outlet of the receiver, a compressor check valve downstream from the compressor and upstream of the heat exchanger, the heat exchanger, and the heat load downstream from a liquid outlet of the receiver.Type: GrantFiled: May 6, 2021Date of Patent: April 16, 2024Assignee: ROLLS-ROYCE NORTH AMERICAN TECHNOLOGIES INC.Inventors: Timothy Unton, Douglas J. Snyder, Christopher Banham
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Patent number: 11951528Abstract: The disclosure describes example systems and techniques for controlling microstructure of a superalloy substrate by controlling temperature during forging and using multiple die forging stages to formation of grain boundary phases of the superalloy, and components formed by such example systems and techniques. The method includes heating a substrate to within a forging temperature range. The substrate includes a nickel-based superalloy, and the forging temperature range is below an eta phase solvus temperature of the substrate. The method includes applying a plurality of die forging stages to the substrate to form a component preform. The method includes maintaining the substrate within the forging temperature range during application of the plurality of die forging stages and cooling the component preform.Type: GrantFiled: August 19, 2021Date of Patent: April 9, 2024Assignees: Rolls-Royce Corporation, Rolls-Royce North American Technologies, Inc.Inventors: Timothy Paul Fuesting, Gangshu Shen, Eugene Sun
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Patent number: 11946414Abstract: An acoustic panel for a gas turbine engine, includes a panel body, a panel-body cover, and a support bracket. The panel body is configured to dampen vibrations caused by the gas turbine engine. The forward support bracket is configured to mount the acoustic panel to portions of the gas turbine engine.Type: GrantFiled: December 16, 2021Date of Patent: April 2, 2024Assignees: Rolls-Royce Corporation, Rolls-Royce North American Technologies Inc.Inventors: Robert W. Heeter, Christopher D. Hall, Daniel E. Molnar, Jr.
