公开(公告)号：US10018060B2

公开(公告)日：2018-07-10

申请号：US14661805

申请日：2015-03-18

Applicant: ROLLS-ROYCE PLC

Inventor： Caner Hasan Helvaci ,  Brian Guy Cooper

IPC: F01D9/04 ,  G06F17/50

CPC classification number: F01D9/041 ,  F05D2220/32 ,  F05D2230/10 ,  F05D2240/129 ,  G06F17/5086

Abstract: A computer-based method of designing a guide vane formation is provided. The vane formation is for use in a gas turbine engine which has a cascade of circumferentially arranged identical guide vane formations. The vane formation has radially inner and radially outer chordal seals. The method allows the elimination of “saw-tooth” leakage gaps between inner chordal seals of neighboring vane formations and between outer chordal seals of neighboring vane formations even when the inner and outer chordal seals are axially offset from each other.

公开(公告)号：US10012112B2

公开(公告)日：2018-07-03

申请号：US14844576

申请日：2015-09-03

Applicant: ROLLS-ROYCE PLC

Inventor： Edward Alexander Walters ,  Matthew John Willshee ,  Rachel Moore

IPC: F01D25/24 ,  F01D25/28 ,  F02C7/20 ,  F02C7/32

CPC classification number: F01D25/28 ,  F01D25/24 ,  F02C7/20 ,  F02C7/32 ,  F05D2220/32 ,  F05D2240/20 ,  F05D2240/35 ,  F05D2250/322 ,  F05D2260/4031 ,  F05D2300/603 ,  Y02T50/672

Abstract: Apparatus for mounting a component in a gas turbine engine, the apparatus comprising: a casing for a gas turbine engine, the casing including a flange; a first connector to connect a component of the gas turbine engine to the casing at a first location adjacent to the flange; and a second connector to connect the component of the gas turbine engine to the casing at a second location adjacent to the flange.

公开(公告)号：US10012111B2

公开(公告)日：2018-07-03

申请号：US14844769

申请日：2015-09-03

Applicant: ROLLS-ROYCE PLC

Inventor： Andrew James Hurst ,  Mark John Simms

IPC: F01D11/08 ,  F01D25/24 ,  F01D5/02 ,  F01D9/02 ,  F01D25/28

CPC classification number: F01D25/246 ,  F01D5/02 ,  F01D9/02 ,  F01D11/08 ,  F01D25/28 ,  F05D2220/32 ,  F05D2240/10 ,  F05D2240/11 ,  F05D2250/61 ,  F05D2260/30

Abstract: A gas turbine, including: axially adjacent first and second components each having a gas path facing surface within an engine casing, inter-component cavity located between first and second components on the gas path outboard side, an axial-restrictor within the inter component cavity for restricting movement of the first or second component relative to at least one other first and second component or engine casing, wherein the axial-restrictor is radially located in the engine casing or other first and second component and includes a radially facing surface; a retaining element, including a body having circumferential length extending around the gas turbine engine and axial length extending between axially adjacent first and second components when in use; an obstructing portion between the radially facing surface of the axial-restrictor and opposing second radial surface of the other first or second component or engine casing to restrict radial movement of in use axial-restrictor.

公开(公告)号：US10006374B2

公开(公告)日：2018-06-26

申请号：US14688423

申请日：2015-04-16

Applicant: ROLLS-ROYCE PLC

Inventor： Alasdair Gardner ,  Arthur Laurence Rowe ,  Mark David Taylor ,  Nicholas Howarth

IPC: F02C9/22 ,  F01D17/16 ,  F02C9/20 ,  F02C9/54 ,  F02C6/00 ,  F02C7/36

CPC classification number: F02C9/22 ,  F01D17/162 ,  F02C6/00 ,  F02C7/36 ,  F02C9/20 ,  F02C9/54 ,  F05D2220/32 ,  F05D2220/76 ,  F05D2270/05 ,  F05D2270/06 ,  F05D2270/303 ,  F05D2270/304 ,  Y02T50/671

Abstract: An engine that has, in axial flow series, booster compressor, core compressor, combustion equipment, core turbine, and low-pressure turbine. Core turbine drives core compressor via an interconnecting high-pressure shaft. Low-pressure turbine drives booster compressor via an interconnecting low-pressure shaft. Low-pressure turbine also drives external load having a defined speed characteristic that dictates speed of the low-pressure turbine and booster compressor. Booster compressor has one or more rows of variable stator vanes. The method includes: scheduling variation in the angle of variable stator vanes as a function of speed of the booster compressor wherein the vanes open as booster compressor speed increases; measuring or setting one or more operational parameters which are determinative of temperature at entry to core turbine; and biasing scheduling of angle variation of variable stator vanes as a function of operational parameter(s) to reduce variation in temperature at entry to core turbine.

公开(公告)号：US10006372B2

公开(公告)日：2018-06-26

申请号：US14748787

申请日：2015-06-24

Applicant: ROLLS-ROYCE PLC

Inventor： Zahid M Hussain ,  Nityabh Mishra ,  Peter T Ireland

IPC: F02C7/25 ,  F01D17/10 ,  F02K3/075 ,  F02C7/042 ,  F02C9/18

CPC classification number: F02C7/25 ,  F01D17/105 ,  F02C7/042 ,  F02C9/18 ,  F02K3/075

Abstract: A ventilation inlet including a conduit (104) arranged to convey flow from a first flow zone to a second flow zone. The conduit has a mouth region (106) presenting to the first flow zone an entrance aperture to receive the flow therefrom. The conduit has a baffle (114) spanning a portion of the conduit to define a throat region (116), the throat region being narrower than the entrance aperture. The throat region (116) is movable along the conduit (104) to control the flow through the ventilation inlet.

公开(公告)号：US20180171819A1

公开(公告)日：2018-06-21

申请号：US15818968

申请日：2017-11-21

Applicant: ROLLS-ROYCE plc

Inventor： Paul M. HIELD

IPC: F01D17/16

CPC classification number: F01D17/162 ,  F01D5/145 ,  F01D5/146 ,  F04D29/563 ,  F05D2240/123 ,  F05D2240/124 ,  Y02T50/673

Abstract: There is disclosed a variable guide vane device for a gas turbine engine comprising first and second vanes arranged in axial flow series. The first and second vanes are spaced apart so as to define a radially extending slot for fluid flow therebetween.

公开(公告)号：US20180164250A1

公开(公告)日：2018-06-14

申请号：US15840617

申请日：2017-12-13

Applicant: ROLLS-ROYCE plc

Inventor： Chow Cher WONG ,  Waled HASSAN ,  David FAN ,  Sylvie J. CASTAGNE ,  Balasubramanian NAGARAJAN ,  Swaminathan ANNAMALAI

IPC: G01N27/87 ,  G01N27/90 ,  G01R1/067 ,  G01N27/02 ,  B24B49/10

CPC classification number: G01N27/87 ,  B24B49/10 ,  B24B49/105 ,  G01N27/02 ,  G01N27/025 ,  G01N27/90 ,  G01N27/9033 ,  G01N27/9046 ,  G01R1/067 ,  G01R1/07 ,  G01R27/2611

Abstract: An eddy current probe comprises a first planar coil, a second planar coil and a flexible substrate. The first coil comprises a first conductor having a spiral geometry, and the second coil comprises a second conductor having a spiral geometry. The first conductor is arranged concentrically with the second conductor, with the first conductor being juxtaposed with the second conductor, and the concentrically arranged first and second conductors are embedded within the flexible substrate.

公开(公告)号：US20180163637A1

公开(公告)日：2018-06-14

申请号：US15821505

申请日：2017-11-22

Applicant: ROLLS-ROYCE PLC

Inventor： Michael Griffiths

IPC: F02C9/26 ,  F23R3/34 ,  F02C7/22 ,  F02C7/232

CPC classification number: F02C9/263 ,  F02C7/22 ,  F02C7/222 ,  F02C7/232 ,  F02C7/236 ,  F02C9/34 ,  F05D2220/32 ,  F05D2240/35 ,  F23K2301/20 ,  F23R3/343 ,  F23R3/346 ,  Y02T50/671

Abstract: A fuel supply system includes a metering and splitting arrangement receiving a fuel flow and controllably meters and splits the received fuel flow into metered pilot and mains flows for injecting at injector pilot and mains fuel discharge orifices to perform combustor staging control. The system includes an ecology valve having a piston chamber and a piston slidably movable in the chamber between de-prime and re-prime positions, the chamber forming a fuel sink to one side of the piston which increases in volume when the piston moves to its de-prime position and reduces in volume when the piston moves to its re-prime position. The system includes an actuator for actuating the piston. The valve is fluidly connected to a mains fuel distribution for operating the piston to its de-prime position to remove the mains fuel from the injectors through the mains fuel distribution pipework and into the fuel sink.

公开(公告)号：US20180161934A1

公开(公告)日：2018-06-14

申请号：US15818921

申请日：2017-11-21

Applicant: ROLLS-ROYCE plc

Inventor： John H. BOSWELL

IPC: B23K26/342 ,  B33Y30/00 ,  B33Y50/02 ,  B23K26/354 ,  G05B19/4097

CPC classification number: B23K26/342 ,  B22F3/1055 ,  B22F2003/1056 ,  B22F2003/1057 ,  B22F2003/1059 ,  B22F2998/10 ,  B22F2999/00 ,  B23K26/354 ,  B29C64/295 ,  B29C64/30 ,  B29C64/35 ,  B29C64/379 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  B65G69/20 ,  C21D1/30 ,  C21D1/42 ,  C21D6/001 ,  C21D6/007 ,  C21D11/00 ,  C21D11/005 ,  C21D2241/02 ,  C22F1/10 ,  C22F1/183 ,  G05B19/4097 ,  G05B2219/35134 ,  G05B2219/49007 ,  Y02P10/24 ,  Y02P10/253 ,  Y02P10/295 ,  B22F3/005 ,  B22F2003/248 ,  B22F2203/11 ,  B22F5/04 ,  B65G69/00 ,  B22F5/009

Abstract: A method of manufacturing an article, the method comprising: controlling an additive manufacturing printer to build an article in a cavity of a build chamber from a powdered material, the build chamber being removable from the additive manufacturing printer and including one or more heaters configured to provide thermal energy to the cavity of the building chamber; and controlling the one or more heaters of the build chamber to heat the article to a predetermined temperature while building the article to prevent the article from cracking while the build chamber and the article are transferred from the additive manufacturing printer to a heater, the predetermined temperature being between the upper temperature of the ductility drop temperature range of the powdered material and the sintering temperature of the powdered material.

公开(公告)号：US09998062B2

公开(公告)日：2018-06-12

申请号：US15443991

申请日：2017-02-27

Applicant: ROLLS-ROYCE plc

Inventor： Sivakumar Nadarajan ,  Ellis F H Chong

IPC: H02H7/08 ,  H02P29/024 ,  H02K1/27 ,  H02K21/24

CPC classification number: H02P29/027 ,  H02K1/2793 ,  H02K1/28 ,  H02K7/10 ,  H02K21/026 ,  H02K21/028 ,  H02K21/029 ,  H02K21/24 ,  H02K2213/06 ,  H02K2213/09

Abstract: An axial flux permanent magnet machine including a pair of axially spaced first components. A second component positioned axially between and equidistant from the first components. Either the pair of first components or the second component is arranged to rotate about a shaft. A translation mechanism coupled to each of the first components. The translation mechanism configured to translate the first components axially away from the second component. Also a method of controlling an axial flux permanent magnet machine.