公开(公告)号：US11571762B2

公开(公告)日：2023-02-07

申请号：US16684921

申请日：2019-11-15

Applicant: Rolls-Royce Corporation ,  Rolls-Royce North American Technologies Inc.

Inventor： Matthew Gold ,  Greg Lopshire ,  Raymond Xu ,  Carl Russo

IPC: B23K1/00 ,  B23K37/00 ,  B23K35/02

Abstract: A printing method for selectively depositing braze powders on a surface comprises extruding a filament from a nozzle moving relative to a surface, where the filament comprises a flowable carrier mixed with a braze powder. As the nozzle moves, the filament is deposited on the surface in a predetermined pattern defined by the motion of the nozzle relative to the surface; thus, the braze powders are deposited at one or more predetermined locations on the surface.

公开(公告)号：US20230028380A1

公开(公告)日：2023-01-26

申请号：US17380370

申请日：2021-07-20

Applicant: Rolls-Royce North American Technologies Inc.

Inventor： Christopher Argote ,  Aaron King

IPC: F01D21/00 ,  F01D17/16

Abstract: A method of maintaining at least one gas turbine engine includes monitoring a compressor of the gas turbine engine. The compressor includes a compressor case at least partially defining a flow path, a plurality of stages and a vane actuator system configured to move at least one of the stages. The vane actuator system includes a vane mover having one or more slots formed therein and configured to actuate the at least one stage. The vane mover may be replaced after the gas turbine engine has experienced engine degradation.

公开(公告)号：US11554536B2

公开(公告)日：2023-01-17

申请号：US17098110

申请日：2020-11-13

Applicant: Rolls-Royce Corporation ,  Rolls-Royce North American Technologies, Inc.

Inventor： Quinlan Yee Shuck ,  Scott Nelson ,  Raymond Ruiwen Xu ,  Brandon David Ribic ,  Matthew R. Gold

IPC: B29C64/118 ,  B33Y70/00 ,  B29C64/245 ,  B29C64/295 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y80/00 ,  B29L31/08

Abstract: A method may include fused filament fabricating a fused filament fabricated component by delivering a softened filament to selected locations at or adjacent to a build surface. The softened filament may include a sacrificial binder and a powder including a shape memory alloy (SMA). The method also may include removing substantially all the sacrificial binder from the fused filament fabricated component to leave an unsintered component; and sintering the unsintered component to join particles of the SMA and form an SMA component.

公开(公告)号：US20220416266A1

公开(公告)日：2022-12-29

申请号：US17358597

申请日：2021-06-25

Applicant: Rolls-Royce North American Technologies, Inc.

Inventor： Patrick Gore

IPC: H01M8/04029 ,  H01M8/18

Abstract: A system includes a flow battery and a temperature control system. The flow battery is configured to thermally manage a thermal load. In some embodiments, the flow battery is also configured to electrically power the thermal load. The temperature control system is configured to cool electrolyte in the flow battery in response to the thermal load being inactive.

公开(公告)号：US20220372931A1

公开(公告)日：2022-11-24

申请号：US17880221

申请日：2022-08-03

Applicant: Rolls-Royce North American Technologies, Inc.

Inventor： Ryan C. Humes

IPC: F02K3/02 ,  F02C7/18 ,  F01D15/00 ,  F04D1/00 ,  F01D5/00 ,  F04D29/44

Abstract: A compressor adapted for use in for a gas turbine engine includes a diffuser and a housing. The diffuser is arranged circumferentially around an axis and includes a fore plate, an aft plate spaced apart axially from the fore plate to define a flow path therebetween, and a plurality of vanes that extend between the fore plate and the aft plate. The housing is arranged circumferentially about the axis and located adjacent the diffuser.

公开(公告)号：US20220349308A1

公开(公告)日：2022-11-03

申请号：US17857560

申请日：2022-07-05

Applicant: Rolls-Royce North American Technologies Inc.

Inventor： Douglas David Dierksmeier ,  Michael A. Karam

IPC: F01D5/04 ,  F01D5/02 ,  F01D25/12

Abstract: 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.

公开(公告)号：US11466855B2

公开(公告)日：2022-10-11

申请号：US16851782

申请日：2020-04-17

Applicant: Rolls-Royce North American Technologies Inc. ,  Rolls-Royce Corporation

Inventor： Ted J. Freeman ,  Aaron D. Sippel

IPC: F23R3/00 ,  F23R3/60

Abstract: A combustor adapted for use in a gas turbine engine includes a combustor shell comprising metallic materials. The combustor shell is formed to define an internal space. The combustor further includes a heat shield mounted to an axially aft surface of the combustor shell within the internal space and a combustor liner arranged to extend along inner surfaces of the combustor shell within the internal space. The combustor liner cooperates with the heat shield to define a combustor chamber.

公开(公告)号：US11440677B2

公开(公告)日：2022-09-13

申请号：US16193467

申请日：2018-11-16

Applicant: Rolls-Royce Corporation ,  Rolls-Royce North American Technologies, Inc.

Inventor： Dawn Kay Andrus ,  Daniel John Bitz ,  Richard Joseph Skertic

IPC: B64D45/00 ,  B64D31/04 ,  B64D31/06 ,  F02D41/30

Abstract: A system is described that includes a controllable component of an engine configured to regulate fuel flow to the engine, a digital control unit configured to control the engine by at least communicating with the controllable component of the engine, and a protection component configured to disable communication between the digital control unit and the controllable component of the engine. The system further includes an analog control unit configured to control the engine by at least communicating with the controllable component of the engine in response to the protection component disabling communication between the digital control unit and the controllable component of the engine.

公开(公告)号：US11437813B2

公开(公告)日：2022-09-06

申请号：US16180940

申请日：2018-11-05

Applicant: Rolls-Royce North American Technologies Inc.

Inventor： Michael P. Dougherty

IPC: B64D31/02 ,  B64D27/24 ,  H02J1/14 ,  H02P5/46 ,  H02P7/00 ,  H02P29/40 ,  H02J1/10 ,  H02J7/14 ,  B64D27/10 ,  B64D27/02 ,  H02P101/30

Abstract: Control logic for a power sharing system on a hybrid propulsion aircraft, utilizing parallel multiple control loops outputting difference commands which provide bumpless transfer between control loops without integrator wind up or reset logic, allowing for efficient load distribution between electric generators and batteries powering electric motors.

公开(公告)号：US11420279B2

公开(公告)日：2022-08-23

申请号：US16684958

申请日：2019-11-15

Applicant: Rolls-Royce Corporation ,  Rolls-Royce North American Technologies Inc.

Inventor： Matthew Gold ,  Greg Lopshire ,  Carl Russo

IPC: B23K1/005 ,  B23K1/00 ,  B23P15/04 ,  B23K1/20 ,  B22F7/04 ,  B22F3/105

Abstract: A method for selectively adhering braze powders to a surface comprises applying a binder material to a surface, depositing a braze powder on the binder material, and then directing a laser beam onto the braze powder while the laser beam moves along a predetermined path relative to the surface. The laser beam selectively heats the braze powder and the binder material along the predetermined path such that the binder material is removed and the braze powder is sintered and bonded to the surface. Thus, a braze deposit is formed at one or more predetermined locations on the surface. After forming the braze deposit, excess braze powder and binder material, that is, the braze powder and binder material not selectively heated by the laser, are removed from the surface.