公开(公告)号：US11883927B2

公开(公告)日：2024-01-30

申请号：US17220318

申请日：2021-04-01

Applicant: ROLLS-ROYCE plc

Inventor： Karl S. Huckerby

IPC: B24B51/00 ,  B24B7/10 ,  G05B15/02 ,  G05B19/4097

CPC classification number: B24B51/00 ,  B24B7/10 ,  G05B19/4097 ,  G05B15/02 ,  G05B2219/32228 ,  G05B2219/37047 ,  G05B2219/45147

Abstract: A method of machining a surface of a component. The method comprises scanning the surface of the component to obtain scanned electronic 3D data representing the scanned surface of the component locating a surface defect of the scanned surface and identifying a defect region that surrounds and includes the surface defect, and providing electronic 3D data representing a patch having the desired shape of the defect region. The method also comprises transforming the patch to generate a tooling path for repairing the surface defect. The transformation comprising translating a plurality of nodes of the patch. The translation distance of each node based on the distance of that node from an origin node of the patch. The method further comprises machining the surface of the component according to the generated tooling path.

公开(公告)号：US20240025131A1

公开(公告)日：2024-01-25

申请号：US18220932

申请日：2023-07-12

Applicant: ROLLS-ROYCE PLC

Inventor： Christopher D. JONES ,  Robert C. BACKHOUSE ,  Adam J. BISHOP ,  Ian BUCK ,  Sarvesh DHIMAN

IPC: B29C70/22

CPC classification number: B29C70/222 ,  B29L2031/3076

Abstract: A woven composite component for an aerospace structure or machine, comprising: a compound member extending from a junction with a feeder member, a noodle element extending in a weft direction through the junction. The feeder member comprises first and second feeder portions either side of the junction, each feeder portion comprising warp tows extending towards the junction. There is a compound set of warp tows extending from the first and second feeder portions, each turning at the junction to define warp tows for the compound member. There is a crossing set of warp tows belonging to the compound set, the crossing set comprising warp tows from the first feeder portion and warp tows from the second portion which cross each other at the junction to pass around the noodle element. There is also disclosed a method of manufacturing a preform for a woven composite component.

公开(公告)号：US11879413B2

公开(公告)日：2024-01-23

申请号：US17940480

申请日：2022-09-08

Applicant: ROLLS-ROYCE plc

Inventor： Paul R Davies ,  Gareth E Moore ,  Stephen M Husband ,  David R Trainer ,  David P Scothern ,  Luke George

IPC: F02K3/06 ,  F01D15/10 ,  F02C7/141

CPC classification number: F02K3/06 ,  F01D15/10 ,  F02C7/141 ,  F05D2220/323 ,  F05D2220/36 ,  F05D2260/213 ,  F05D2260/606

Abstract: An aircraft gas turbine engine includes a heat exchanger module, and a core engine. The core engine includes an intermediate-pressure compressor, high-pressure compressor, and high and low-pressure turbines. The high-pressure compressor rotationally connects to the high-pressure turbine by a first shaft, and the intermediate-pressure compressor rotationally connects to the low-pressure turbine by a second shaft. The heat exchanger module fluidly communicates with the core engine by an inlet duct. The heat exchanger module includes a central hub and multiple heat transfer elements extending radially from the hub and spaced in a circumferential array, for heat energy transfer from a first fluid within the elements to an inlet airflow passing over a surface of the elements prior to airflow entry into an inlet to the core engine. The gas turbine engine further includes a first electric machine rotationally connected to the first shaft, and positioned downstream of the heat exchanger module.

公开(公告)号：US11879357B2

公开(公告)日：2024-01-23

申请号：US18067961

申请日：2022-12-19

Applicant: ROLLS-ROYCE plc

Inventor： Peter T. Ireland ,  John Coull ,  João António Coelho Vieira

IPC: F01D5/18 ,  F01D25/12

CPC classification number: F01D5/186 ,  F01D25/12 ,  F05D2220/32 ,  F05D2240/30 ,  F05D2240/304 ,  F05D2240/307 ,  F05D2260/202

Abstract: A turbine blade includes an aerofoil including a leading edge, a trailing edge, a first sidewall, a second sidewall, and an internal cooling circuit disposed within the aerofoil and configured to direct a cooling fluid within the aerofoil. The turbine blade includes at least one first recessed portion formed on the first sidewall proximal to a tip of the turbine blade. The first recessed portion is disposed proximal to and spaced apart from the trailing edge of the aerofoil. The first recessed portion includes a base surface, a first surface, and a second surface. The first recessed portion further includes at least one slot extending from the first surface to the internal cooling circuit. The slot is configured to allow a flow of the cooling fluid from the internal cooling circuit to the first recessed portion.

公开(公告)号：US20240021193A1

公开(公告)日：2024-01-18

申请号：US18038532

申请日：2021-11-09

Applicant: ROLLS-ROYCE PLC

Inventor： Muhannad Abdul Rahman ALOMARI ,  James Frederick Sebastian ARNEY ,  Stuart Brian MOSS

IPC: G10L15/16 ,  G10L15/06

CPC classification number: G10L15/16 ,  G10L15/063

Abstract: A method of training a neural network to generate conversational replies, the method including: providing a first dataset of stored phrases linked to form a plurality of conversational sequences; training the neural network to generate responses to input phrases using the first dataset; and using the trained neural network to generate a list of conversational replies in response to conversational inputs.

公开(公告)号：US20240017503A1

公开(公告)日：2024-01-18

申请号：US18215567

申请日：2023-06-28

Applicant: ROLLS-ROYCE PLC

Inventor： Christopher D. JONES ,  Ian BUCK ,  Sarvesh DHIMAN

IPC: B29C70/22

CPC classification number: B29C70/222 ,  B29K2677/00

Abstract: A manufacturing method comprises: providing a woven fabric comprising a plurality of reinforcing fibre tows and a plurality of thermoplastic polymer yarns woven together; and moulding the woven fabric in a heated mould to form a preform for a composite component.

公开(公告)号：US20240011636A1

公开(公告)日：2024-01-11

申请号：US18349275

申请日：2023-07-10

Applicant: ROLLS-ROYCE plc

Inventor： Lloyd D. MORSON ,  Julien DIGOUDE

IPC: F23R3/60 ,  F23R3/00

CPC classification number: F23R3/60 ,  F23R3/002

Abstract: A combustor casing component for a gas turbine engine which is manufactured as a single-piece. The combustor casing component has a combustor outer casing portion, an outlet guide vane outer case portion, a pre-diffuser portion, a plurality of outlet guide vanes, and an outlet guide vane inner case portion.

公开(公告)号：US20240011433A1

公开(公告)日：2024-01-11

申请号：US18215868

申请日：2023-06-29

Applicant: ROLLS-ROYCE plc

Inventor： Stephen J. BRADBROOK ,  William J. SMITH ,  Jonathan P. BRADLEY

IPC: F02C3/06

CPC classification number: F02C3/06 ,  F05D2220/36

Abstract: A novel configuration for axial flow gas turbine engine for aircraft has an engine core having a core length and including first turbine, axial compressor, and drive connecting the first turbine to the axial compressor, the engine core further including a second turbine, and a fan shaft connecting the second turbine to a fan located upstream of the engine core, the fan including a plurality of fan blades extending from a fan hub, the fan having a tip radius from 90 mm to 225 mm and wherein the ratio of fan tip radius to an engine length is 0.15 to 0.25. The engine may have 3, 4 or 5 compressor stages and a combustor volume (in litres) which when divided by the fan tip radius (in mm) is 0.015 to 0.083. The fan may be a multistage fan configured to permit an electric motor to be located within the fan hub diameter.

公开(公告)号：US11859765B2

公开(公告)日：2024-01-02

申请号：US17825329

申请日：2022-05-26

Applicant: ROLLS-ROYCE plc

Inventor： Robert C. Backhouse

IPC: F17C1/12

CPC classification number: F17C1/12 ,  F17C2203/012 ,  F17C2203/0607 ,  F17C2203/0631 ,  F17C2203/0673 ,  F17C2221/012 ,  F17C2260/013 ,  F17C2270/0189

Abstract: A storage tank for liquid hydrogen comprises first and second shells each constructed of laminate material, the second shell being disposed outwardly of the first shell with respect to the centre of the storage tank. The first and second shells are mechanically connected by a first plurality of pins each of which passes through at least some layers of the second shell and at least some layers of the first shell. The storage tank may be constructed using a simpler manufacturing process involving less tooling and fewer process steps than is the case for known tanks for storing liquid hydrogen. The storage tank has also has a lower mass and reduced thermal losses compared to tanks of the prior art. The plurality of pins allows for the shells to be thinner, and hence lighter, than similar shells in tanks of the prior art.

公开(公告)号：US11852185B2

公开(公告)日：2023-12-26

申请号：US17064895

申请日：2020-10-07

Applicant: ROLLS-ROYCE PLC

Inventor： David R Coles ,  Daniel Clark

IPC: F16B7/04 ,  F16B5/00

CPC classification number: F16B5/0088 ,  F16B7/0406

Abstract: A joint assembly joins first and second components about a common axis. The first component has a first end portion having a radially outwardly facing surface shaped to fit radially inside a second surface of a hollow second end portion of the second component to form an interface between the opposing first and second surfaces. The first and second surfaces have a concavity extending laterally with respect to the axis such that when the first and second surfaces are opposingly arranged the opposing concavities define a cavity at the interface. A retaining member is insertable into the cavity at the interface to prevent axial separation of the first and second components. One of the first and second end portions has a free end protrusion axially spaced from the concavity and the other of the first and second end portions has an axially extending recess arranged to receive the free end.