公开(公告)号：US20180283206A1

公开(公告)日：2018-10-04

申请号：US15933423

申请日：2018-03-23

Applicant: ROLLS-ROYCE plc

Inventor： Kieran P. LUCEY ,  Stephen J. BENDALL

IPC: F01D21/04 ,  F01D5/02 ,  F02C7/06

CPC classification number: F01D21/045 ,  F01D5/026 ,  F01D21/08 ,  F02C7/06 ,  F04D29/044 ,  F04D29/053 ,  F05D2220/36 ,  F05D2240/60 ,  F05D2240/61

Abstract: A fan is mounted on a fan shaft which constitutes part of a mainline shaft assembly centered for rotation on an engine axis X-X of a gas turbine engine. When in operation, the fan rotates about the engine axis X-X. A stub-shaft is arranged radially outwardly and concentrically with the fan shaft and adjoins an upstream facing face of a bearing sleeve. A fan catcher arm extends from the stub-shaft through the bearing sleeve and joins a fan catcher ring arranged downstream of the bearing sleeve and having an upstream facing face arranged to abut against a downstream facing face of the bearing sleeve in the event of a fan blade-off. Immediately downstream of the fan catcher ring is formed a shaft end which is configured to couple with an axially adjacent end of a low pressure compressor shaft. Immediately downstream of the bearing sleeve is a shaft end configured to connect with a turbine shaft.

公开(公告)号：US20180282841A1

公开(公告)日：2018-10-04

申请号：US15946170

申请日：2018-04-05

Applicant: ROLLS-ROYCE PLC

Inventor： Mark C. HARDY ,  Roger C. REED ,  David CRUDDEN

IPC: C22C19/05 ,  F01D5/02 ,  F01D25/24 ,  F23R3/00 ,  F04D29/32

CPC classification number: C22C19/056 ,  C22C19/05 ,  F01D5/02 ,  F01D25/24 ,  F04D29/321 ,  F05D2220/32 ,  F05D2300/175 ,  F05D2300/177 ,  F23R3/002

Abstract: A nickel-base superalloy consisting of, by weight: 14.6% to 15.9% cobalt; 11.5% to 13.0% chromium; 0.8% to 1.2% iron; 0.2% to 0.60% manganese; 2.00% to 2.40% molybdenum; 3.30% to 3.70% tungsten; 2.90% to 3.30% aluminium; 2.60% to 3.10% titanium; 3.50% to 5.10% tantalum; 1.20% to 1.80% niobium; 0.10% to 0.60% silicon; 0.02% to 0.06% carbon; 0.010% to 0.030% boron; 0.05% to 0.11% zirconium; up to 0.045% hafnium; and the balance being nickel and impurities.

公开(公告)号：US10087779B2

公开(公告)日：2018-10-02

申请号：US15091053

申请日：2016-04-05

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

Inventor： Stephan Uhkötter ,  Ulrich Adamczewski ,  Jack Francis Colebrooke

IPC: F01D25/18 ,  F02C7/36 ,  F16H1/28 ,  F16H57/04 ,  F16L25/10 ,  F16L37/50 ,  F02C7/06

Abstract: A transfer coupling includes a static component and a rotatable component arranged concentrically, the static component including a first number of radially extending ports and the rotatable component having a second number of radially extending ports the radially extending ports arranged in a common circumferential plane wherein the ports are configured and arranged, in use, to homogenize a flow area for a fluid being transferred through the ports and thereby create a homogenous volume flow.

公开(公告)号：US20180274386A1

公开(公告)日：2018-09-27

申请号：US15935795

申请日：2018-03-26

Applicant: ROLLS-ROYCE plc

Inventor： Zahid M. HUSSAIN ,  Oliver TAYLOR-TIBBOTT

IPC: F01D21/14

CPC classification number: F01D21/14 ,  F01D17/105 ,  F02C3/04 ,  F02C7/00 ,  F05D2220/32 ,  F05D2240/14 ,  F05D2260/30 ,  F05D2260/606 ,  Y02T50/672

Abstract: A pressure relief arrangement for a gas turbine engine comprises a hinged door and a mount spaced from the door. An expandable structure is connected to the door and to the mount such that when the door hinges open the expandable structure expands.

公开(公告)号：US20180269760A1

公开(公告)日：2018-09-20

申请号：US15915229

申请日：2018-03-08

Applicant: ROLLS-ROYCE plc

Inventor： Joseph PALMER

IPC: H02K16/00 ,  H02P29/00 ,  B64C21/06

Abstract: An axial flux electrical machine comprises a first flux generating assembly, a second flux generating assembly, a shaft and a speed controller. The shaft has an axis of rotation. Each of the first flux generating assembly and the second flux generating assembly is rotationally located on the shaft in axial juxtaposition to one another, with the first flux generating assembly being axially separated from the second flux generating assembly by a separation distance. The speed controller is configured to modify a magnetic field generated by either of the first flux generating assembly and the second flux generating assembly so as to control a rotational speed of the electrical machine.

公开(公告)号：US20180264643A1

公开(公告)日：2018-09-20

申请号：US15914237

申请日：2018-03-07

Applicant: ROLLS-ROYCE plc

Inventor： Amir RABANI ,  David ALATORRE TRONCOSO

IPC: B25J9/06 ,  B25J9/16 ,  B25J13/08 ,  B25J18/06

CPC classification number: B25J9/065 ,  B25J9/1615 ,  B25J9/1694 ,  B25J13/08 ,  B25J13/085 ,  B25J13/087 ,  B25J18/06 ,  G01L1/20 ,  G01L5/0076

Abstract: Apparatus for enabling determination of a shape of at least a portion of a continuum robot, the apparatus comprising: a flexible cover defining a first end, a second end opposite to the first end, and a cavity for receiving at least a portion of a continuum robot therein; and a first elastic strain sensor coupled to the flexible cover and being configured to provide a first output signal associated with movement of the flexible cover.

公开(公告)号：US10077714B2

公开(公告)日：2018-09-18

申请号：US14935004

申请日：2015-11-06

Applicant: Rolls-Royce plc

Inventor： Randall D. Siders ,  Peter J. Schnoebelen ,  Brandon P. Williams ,  Neal Thomson ,  Philip E. O. Buelow ,  David H. Bretz

IPC: F02C7/32 ,  F23R3/14 ,  F23R3/34 ,  B23K33/00 ,  F02C7/22

CPC classification number: F02C7/22 ,  B23K33/006 ,  F23R3/14 ,  F23R3/28 ,  F23R3/343

Abstract: A fuel injector for a lean direct injection fuel nozzle has a pilot air swirler which sits radially outboard of a pilot fuel swirler radially outer wall. The air swirler is bounded on its radially outer side by joined wall portions. One wall portion extends axially and another wall portion converges radially. On the radially inwardly facing surface, the wall portions meet to provide a continuing wall surface of the air swirler which transitions from axial extension to radial convergence over a smooth radius. The curvature of this surface broadly mirrors the radially outwardly facing profile of the pilot fuel swirler radially outer wall. The axially extending wall portion is extended axially to form a first part of a join interface. The radially converging portion is extended in a radial direction to provide a second part of the join interface.

公开(公告)号：US20180252113A1

公开(公告)日：2018-09-06

申请号：US15907538

申请日：2018-02-28

Applicant: ROLLS-ROYCE plc

Inventor： Richard NORTHALL ,  Anthony J. RAE ,  Michael S. KRAUTHEIM ,  Alastair D. WALKER ,  Jonathan F. CARROTTE ,  Ian MARIAH

IPC: F01D9/04 ,  F01D5/14

Abstract: An annular array of turning vanes 200 is provided in a duct 100 of a gas turbine engine 10. The annular array of turning vanes 200 comprises aerodynamic vanes 220 and strut-vanes 240. The strut-vanes 240 have greater chord length and extend further axially downstream than the aerodynamic vanes 220. The leading edge of the strut-vanes 240 is upstream of the trailing edge of the aerodynamic vanes 220. The strut-vanes provide flow turning. The space to chord ratio of the aerodynamic vanes that are closest to the suction surface of a strut-vane is higher than the space to chord ratio of aerodynamic vanes that are closest to a pressure surface of the strut-vane. The arrangement allows the duct 100 to be axially short.

公开(公告)号：US20180231019A1

公开(公告)日：2018-08-16

申请号：US15894206

申请日：2018-02-12

Applicant: ROLLS-ROYCE plc

Inventor： Marco BARALE ,  Gabriel GONZALEZ-GUTIERREZ ,  Mark J. WILSON ,  Benedict PHELPS ,  Kashmir S. JOHAL ,  Nigel HS SMITH

IPC: F04D29/38 ,  F04D29/32

CPC classification number: F04D29/386 ,  F01D5/141 ,  F04D29/325 ,  F05D2220/36 ,  F05D2230/239 ,  F05D2240/303 ,  Y02T50/672 ,  Y02T50/673

Abstract: A fan blade for a gas turbine engine is provided with forward axial lean. The fan blade may have a substantially straight leading edge. The geometry of the fan blade results in a lower susceptibility to flutter, thereby allowing a gas turbine engine comprising such a fan blade to operate over a wider range of operating conditions.

公开(公告)号：US10050651B2

公开(公告)日：2018-08-14

申请号：US14730838

申请日：2015-06-04

Applicant: ROLLS-ROYCE PLC

Inventor： Huw L. Edwards ,  Max C Y Ong ,  Haydn A. Thompson

IPC: H04B1/10 ,  B63H5/125 ,  H04B7/02 ,  H04L1/04 ,  G01M15/00

Abstract: A marine propulsor comprises: a stationary part and a movable part which is movable relative to the stationary part; and a wireless communication system, comprising at least one transmitter which is disposed in the movable part and is configured to transmit an electromagnetic data signal and at least one receiver which is disposed in the stationary part and is configured to receive the electromagnetic data signal. The wireless communication system includes a diversity scheme for mitigating multipath distortion of the electromagnetic data signal between the at least one transmitter and the at least one receiver.