公开(公告)号：US20190112986A1

公开(公告)日：2019-04-18

申请号：US16124559

申请日：2018-09-07

Applicant: ROLLS-ROYCE plc

Inventor： Simon M. RUSTON ,  Rong YANG ,  Matthew FOX ,  Aniket Anand KULARNI

IPC: F02C9/18 ,  F02C3/04

Abstract: A pressure relief arrangement for a gas turbine engine comprises a hinged door and a mount. A plastically deformable member is provided between and coupled to the hinged door and the mount. The deformable member is configured to deform between a non-deformed state when the door is in a closed position and an elongated deformed state when the door is in an open position.

公开(公告)号：US20190101003A1

公开(公告)日：2019-04-04

申请号：US16110174

申请日：2018-08-23

Applicant: ROLLS-ROYCE plc

Inventor： Brynley CLARK

IPC: F01D5/14 ,  F01D5/34 ,  F01D9/04

Abstract: A method of forming a blade or vane for a gas turbine engine comprising: attaching a first outer layer to a first two-dimensional array of attachment areas on a first surface of an intermediate layer; attaching a second outer layer to a second two-dimensional array of attachment areas on a second surface of the intermediate layer opposite the first surface; and increasing a separation between at least a portion of the first and second outer layer to thereby deform the intermediate layer into a corrugated structure having corrugations in first and second directions.

公开(公告)号：US20190097429A1

公开(公告)日：2019-03-28

申请号：US16142021

申请日：2018-09-26

Applicant: ROLLS-ROYCE plc

Inventor： Graham P. BRUCE

IPC: H02J4/00 ,  H01B9/02 ,  B64D27/02

CPC classification number: H02J4/00 ,  B63H21/17 ,  B64D27/02 ,  B64D2027/026 ,  B64D2221/00 ,  H01B9/02

Abstract: The present disclosure concerns an electrical interconnect system for a vehicle such as an aircraft or marine/submarine vessel. Example embodiments include a vehicle comprising: a first electrical generator; a second electrical generator; an engine arranged to drive the first and second electrical generators; a first electrical distribution system connected to the first electrical generator and arranged to distribute electrical power within the vehicle, the first electrical distribution system comprising a transmission path and a return path; a second electrical distribution system connected to the second electrical generator, the second electrical distribution system comprising a transmission path and a return path; an electric motor configured to provide propulsion for the vehicle and connected to the second electrical generator via the second electrical distribution system, wherein the return path of the second electrical distribution system provides a portion of the return path of the first electrical distribution system.

公开(公告)号：US10239151B2

公开(公告)日：2019-03-26

申请号：US15184417

申请日：2016-06-16

Applicant: ROLLS-ROYCE plc

Inventor： Michael J Berry ,  Andrew R Walpole ,  Peter Wilson

IPC: B23K20/12 ,  B23K20/26 ,  F01D5/30 ,  B23K101/00

Abstract: A method linear friction welds a rotor blade to a disk. The method includes: providing a linear friction welding machine having disk tooling at which a disk is mounted, and further having blade tooling at which a blade is mountable; mounting a dummy blade at blade tooling, dummy blade carrying one or more first measurement devices which interact with mounted disk to measure position of dummy blade relative to disk; adjusting position and orientation of blade tooling relative to mounted disk until first measurement devices indicate that dummy blade is in a suitable alignment with disk to start linear friction welding a blade to disk; releasing dummy blade from blade tooling and mounting a production blade thereat; and linear friction welding the production blade to the disk with the blade tooling starting at adjusted position and orientation.

公开(公告)号：US10239132B2

公开(公告)日：2019-03-26

申请号：US14878349

申请日：2015-10-08

Applicant: ROLLS-ROYCE PLC

Inventor： James Robert Withey

IPC: B23C3/00 ,  B23C3/02 ,  F01D25/28 ,  F01D25/24 ,  F02C7/04 ,  B23Q11/00

Abstract: An attrition liner machining tool, configured to machine the surface of an attrition liner provided radially outward of a set of a plurality of fan blades in a gas turbine engine. The tool includes at least one rotating machine tool having a connector at a first end and a cutter at a second end. The connector is configured to rigidly connect to a rotating fan blade mount of the gas turbine engine that, in use of the gas turbine engine, supports the fan blades. The cutter is configured to machine the attrition liner. The at least one rotating machine tool is configured such that, when it is connected to said rotating fan blade mount of a gas turbine engine, the cutter is passed across the surface of the attrition liner when said rotating fan blade mount is rotated.

公开(公告)号：US20190084104A1

公开(公告)日：2019-03-21

申请号：US16106890

申请日：2018-08-21

Applicant: ROLLS-ROYCE plc

Inventor： Donka NOVOVIC ,  James KELSEY ,  David T. CURTIS

IPC: B23Q3/08 ,  B28D7/04 ,  C04B41/50 ,  C04B41/00

Abstract: A method of: (i) providing a mould, comprising a mould body and a mould cavity; (ii) positioning the workpiece within the mould cavity; (iii) providing a plurality of part locator rods, each rod being located in the mould body and protruding into the mould cavity, a distal end of each rod abutting against an outer surface of the workpiece; (iv) providing a fluid, the fluid filling a void defined between an outer surface of the workpiece and an internal surface of the mould cavity; (v) cooling the mould, workpiece and fluid to below a freezing point of the fluid; (vi) removing the workpiece encapsulated in frozen fluid, from the cavity, with the rods protruding from outer surface of frozen fluid; (vii) securing the encapsulated workpiece on a machine tool; and (viii) using the protruding part locator rods to position the workpiece on the machine tool in readiness for machining operation.

公开(公告)号：US20190072000A1

公开(公告)日：2019-03-07

申请号：US16100251

申请日：2018-08-10

Applicant: ROLLS-ROYCE plc

Inventor： Oliver JONES ,  Miles HAWKYARD ,  Adrian R. M. WALKER

IPC: F01D25/24 ,  F04D29/64 ,  F16B5/02

Abstract: A bush having a neck portion (33) for inserting into an aperture of one or both of two components to be fastened together, a radially extending shoulder portion (34) having a rear face (34a) adjacent the neck portion (33) an opposite front face (34b) and a radially outer face (34c) extending between the rear face (34a) and the front face (34b), one or more ventilation slots (36) provided in the rear face extending from a junction between the rear face (34a) and the neck portion (33) whereby, in use, to provide an escape route for air caught between the bush and a component.

公开(公告)号：US20190070660A1

公开(公告)日：2019-03-07

申请号：US16112910

申请日：2018-08-27

Applicant: ROLLS-ROYCE plc

Inventor： Adrian L. HARDING ,  David J. HUNT

IPC: B22D19/00 ,  F01D5/18 ,  B23P21/00

Abstract: A method of bi-casting a first component (10) to a second component (11), wherein the first component comprises a channel (13) having an opening at a surface of the component, the method comprising inserting a pin (12) into the channel (13) to a closure position to block a cross-section of said channel, positioning the first and second components to be adjacent such that at least one space is defined between the first and second components, pouring liquid bi-cast metal (15) into the at least one space between the first component and the second component such that the first component is joined to the second component by the bi-cast metal and the pin is secured in the closure position.

公开(公告)号：US10221768B2

公开(公告)日：2019-03-05

申请号：US14881722

申请日：2015-10-13

Applicant: ROLLS-ROYCE PLC

Inventor： Michael John Agg

IPC: F02C7/18 ,  F28D7/08 ,  F28D7/16 ,  F02C7/224 ,  F28D7/04 ,  F28D7/02 ,  F02C7/14 ,  B64D33/08 ,  B64D33/10 ,  F28D7/10 ,  F28F1/36 ,  F28F1/34 ,  F28F1/14 ,  F28F1/38 ,  F28F1/42 ,  F28F1/16 ,  F02C3/10 ,  F02C9/18 ,  F28D21/00

Abstract: A heat exchanger for use in high pressure environments, such as in a gas turbine engine, includes an outer casing, a tubular element within the outer casing and an inner sleeve within the tubular element. The tubular element has an outer surface and an inner surface. The outer casing and outer surface of the tubular element define a first annular passage through which a first fluid flow path extends. The inner sleeve and inner surface of the tubular element define a second annular passage through which a second fluid flow path extends. The first annular passage is sealed against the outer surface of the tubular element and the second annular passage is sealed within the inner surface of the tubular element.

公开(公告)号：US10221705B2

公开(公告)日：2019-03-05

申请号：US14856958

申请日：2015-09-17

Applicant: ROLLS-ROYCE PLC

Inventor： Christopher Benson

IPC: F01D5/32 ,  F01D5/30

Abstract: A slider for chocking a dovetail root of a blade of a gas turbine engine in a corresponding axially-extending slot in the rim of a disc. The slider, in use, is slidingly inserted in an axially-extending cavity formed in the base of the root and in the disc at the base of the slot to urge the blade radially outwardly and thereby mate flanks of the root to flanks of the slot. The slider is arc-shaped and the cavity is correspondingly arc-shaped. The normal to the plane of the arc of the arc-shaped cavity is substantially perpendicular to the engine axis such that, when inserted in the cavity, the slider also retains the root axially in the slot.