公开(公告)号：US20230159174A1

公开(公告)日：2023-05-25

申请号：US17456501

申请日：2021-11-24

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

Inventor： Riggs Baxter ,  Peter Laux ,  Mathew Hill ,  John Timothy Alt

IPC: B64D27/24 ,  H02J7/00

CPC classification number: B64D27/24 ,  H02J7/0013 ,  B64D2221/00

Abstract: An example system includes one or more battery modules, a battery module of the one or more battery modules comprising: a cylindrical pressure vessel; a cooling channel extending axially through the cylindrical pressure vessel; and one or more battery packs within the cylindrical pressure vessel, a battery pack of the one or more battery packs comprising a plurality of battery cells radially distributed about the cooling channel.

公开(公告)号：US20230125918A1

公开(公告)日：2023-04-27

申请号：US17973609

申请日：2022-10-26

Applicant: Rolls-Royce Deutschland Ltd & Co KG ,  Rolls-Royce plc

Inventor： Matthew THOMSON ,  Romek OTT ,  Igor SIKORSKI ,  Sabina HEYEN

IPC: F02C7/18 ,  F23R3/04 ,  F23R3/16 ,  F23R3/42

Abstract: A combustion chamber assembly includes a through hole on the combustion chamber wall bounded on an outer side of the wall by a hole edge and a combustion chamber shingle having a collar bounding a mixing air hole on the outer side of the wall and protruding with a first collar portion beyond the hole edge on the outer side of the wall. A cooling air opening is formed on an inner circumferential surface of a duct portion of the mixing air hole adjoining the first collar portion and extending in the direction of a combustion space, the cooling air opening leading into a cooling air duct which extends through the duct portion and via which cooling air is guided out of the mixing air hole in a direction of a hot side of the shingle facing the combustion space.

公开(公告)号：US11635000B1

公开(公告)日：2023-04-25

申请号：US17560697

申请日：2021-12-23

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

Inventor： Jack Moody ,  Jerry Layne ,  Jeffrey F. Rhodes ,  Brett Barker ,  Eric Koenig

IPC: F01D9/00 ,  F01D25/12 ,  F01D9/04

Abstract: An endwall may be disposed at one end of a vane assembly. The endwall may comprise an endwall spar and a coversheet on the hot surface of the endwall spar. The endwall may further comprise a cooling fluid channel between the hot surface of the endwall spar and the cold surface of the coversheet. The cooling fluid channel may include a cooling fluid inlet disposed in the endwall spar, and a cooling fluid outlet. The cooling fluid outlet may be formed at an angle with the axis of the endwall spar. A plurality of pedestals may be disposed on the hot surface of the endwall spar extending into the cooling channel. The pedestals may be formed at an angle with the axis of the endwall spar to direct a cooling fluid.

公开(公告)号：US20230093658A1

公开(公告)日：2023-03-23

申请号：US17448661

申请日：2021-09-23

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

Inventor： Matthew T. Kush ,  Michael Wood ,  Scott Nelson ,  Joseph Peter Henderkott

IPC: F01D5/18 ,  B23K1/00 ,  B22F5/04 ,  B22F10/22 ,  B33Y80/00

Abstract: A method for forming a component for a gas turbine engine may include forming a first portion of the component that includes a cast metal or metal alloy, forming a second portion of the component that includes presintered preform defining at least one support structure, positioning the second portion on the first portion to define an assembly such that the first portion and the second portion define at least one cooling channel therebetween, and heating the assembly to join the first portion and the second portion and form the component.

公开(公告)号：US11603993B2

公开(公告)日：2023-03-14

申请号：US17848798

申请日：2022-06-24

Applicant: ROLLS-ROYCE plc ,  ROLLS-ROYCE DEUTSCHLAND LTD & CO KG

Inventor： Luca Tentorio ,  Imon-Kalyan Bagchi

IPC: F23R3/34 ,  F23R3/14 ,  F02C7/36

Abstract: A lean burn combustor includes a plurality of lean burn fuel injectors, each including a fuel feed arm and a lean burn fuel injector head with a lean burn fuel injector head tip, wherein the lean burn fuel injector head tip has a lean burn fuel injector head tip diameter, the lean burn fuel injector head including a pilot fuel injector and a main fuel injector, the main fuel injector being arranged coaxially and radially outwards of the pilot fuel injector; and a combustor chamber extending along an axial direction for a length and including a radially inner annular wall, a radially outer annular wall, and a meter panel defining the size and shape of the combustor chamber, wherein the combustor chamber includes primary and secondary combustion zones. A ratio of the combustor chamber length to the lean burn fuel injector head tip diameter is less than 5.

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：US20230015929A1

公开(公告)日：2023-01-19

申请号：US17856575

申请日：2022-07-01

Applicant: ROLLS-ROYCE PLC ,  ROLLS-ROYCE DEUTSCHLAND LTD & CO KG

Inventor： Michael R SMITH ,  Imon-Kalyan BAGCHI

IPC: F23R3/28

Abstract: A lean burn fuel spray nozzle comprises: a lean burn fuel spray nozzle head comprising a pilot fuel injector with a pilot fuel injector outlet and a main fuel injector with a main fuel injector outlet; a feed arm adapted to feed pilot fuel from pilots pipework to the pilot fuel injector through a pilot fuel circuit and feed main fuel from mains pipework to the main fuel injector through a main fuel circuit; and a switching device comprising a switching valve adapted to switch between a Main On position, wherein the main fuel injector is in fluid communication with the mains pipework such that main fuel is sprayed through the main fuel injector outlet, and a Main Off position, wherein the main fuel injector outlet is not in fluid communication with the mains pipework such that main fuel is prevented to flow through the main fuel injector.

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：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.