公开(公告)号：US12018621B1

公开(公告)日：2024-06-25

申请号：US18234657

申请日：2023-08-16

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

Inventor： Robert W. Heeter ,  Daniel E. Molnar, Jr. ,  Michael S. Krautheim

IPC: F02C9/22 ,  F01D17/14 ,  F02K3/06 ,  F04D29/54

CPC classification number: F02C9/22 ,  F01D17/141 ,  F02K3/06 ,  F04D29/542 ,  F05D2220/36 ,  F05D2240/12 ,  F05D2240/14

Abstract: A fan case assembly adapted for use with a gas turbine engine includes a case at extends circumferentially at least partway about an axis of the gas turbine engine and a plurality of vanes. The case is formed to define a channel that extends circumferentially at least partway about the axis. The plurality of vanes are arranged in the channel and spaced apart circumferentially about the axis.

公开(公告)号：US12012997B2

公开(公告)日：2024-06-18

申请号：US17930192

申请日：2022-09-07

Applicant: Rolls-Royce Corporation

Inventor： Joseph D. Black

IPC: F16D13/66 ,  F16D13/30 ,  F16D13/72

CPC classification number: F16D13/30 ,  F16D13/66 ,  F16D13/72

Abstract: In some examples, a cone clutch assembly includes an inner cone member rotationally coupled to a first shaft, the inner cone member defining a first friction surface, and an outer cone member rotationally coupled to a second shaft, the outer cone member defining a second friction surface opposing the first friction surface. The inner cone member and outer cone member are configured to be selectively engage and disengaged from each other. When the inner cone member is engaged with the outer cone member, the first friction surface of the inner cone member frictionally engages the second friction surface of the outer cone member such that rotational motion is transferred between the inner cone member and the outer cone member. The inner surface of the inner cone member opposing the first friction surface includes at least one groove configured to receive a cooling fluid during operation of the cone clutch assembly.

公开(公告)号：US12011763B2

公开(公告)日：2024-06-18

申请号：US17453460

申请日：2021-11-03

Applicant: Rolls-Royce Corporation

Inventor： Quinlan Yee Shuck

IPC: B22F3/105 ,  B22F5/00 ,  B22F5/04 ,  B22F7/06 ,  B23K9/02 ,  B23K9/09 ,  B23K11/00 ,  C22C1/04 ,  H01F41/02 ,  H05B3/00 ,  H05B3/60 ,  H05B6/10

CPC classification number: B22F3/105 ,  B22F7/064 ,  B23K9/0213 ,  B23K9/091 ,  B23K11/00 ,  B23K11/002 ,  H01F41/0253 ,  H05B3/0004 ,  H05B3/60 ,  H05B6/101 ,  B22F2003/1053 ,  B22F5/009 ,  B22F5/04 ,  B22F2999/00 ,  C22C1/0433 ,  B22F2999/00 ,  B22F5/009 ,  B22F7/064 ,  C22C1/0433 ,  B22F2003/1051

Abstract: A system may include a current source; a first metal or alloy component with a first major surface electrically coupled to the current source; a second metal or alloy component with a second major surface electrically coupled in series to the first component and the current source via an external electrical conductor, where the first and second major surfaces are positioned adjacent to each other to define a joint region; a metal or alloy powder disposed in at least a portion of the joint region; and a controller. The controller may be configured to cause the current source to output an alternating current that conducts through the first component and the second component to induce magnetic eddy currents, magnetic hysteresis, or both within at least a portion of the metal or alloy powder disposed in at least the first portion of the joint region.

公开(公告)号：US12006874B2

公开(公告)日：2024-06-11

申请号：US17651021

申请日：2022-02-14

Applicant: Rolls-Royce Corporation

Inventor： Benedict N. Hodgson ,  Jeff Higbie

IPC: F02C7/24 ,  B33Y10/00 ,  B33Y80/00 ,  G10K11/162

CPC classification number: F02C7/24 ,  B33Y10/00 ,  B33Y80/00 ,  G10K11/162 ,  F05D2220/32 ,  F05D2260/96 ,  F05D2300/603

Abstract: In some examples, acoustic panels (such as for gas turbine engines) and techniques for forming acoustic panels. In some examples, the acoustic panel including a coversheet including an outer face, an inner face, and a plurality of apertures extend from the outer face to the inner face. The acoustic panel also includes a 3D-printed support layer including a lattice structure formed at least partially of a polymer, the lattice structure defining a plurality of cells of the support layer, wherein a first side of the support layer is coincident with the inner face of the coversheet.

公开(公告)号：US20240139844A1

公开(公告)日：2024-05-02

申请号：US18051237

申请日：2022-10-31

Applicant: Rolls-Royce Corporation

Inventor： Monica Sy Munoz ,  Damon Ward ,  Rusty M. Garner

IPC: B23H3/06 ,  B23H7/24 ,  B23H7/32

CPC classification number: B23H3/06 ,  B23H7/24 ,  B23H7/32 ,  B23H2300/12

Abstract: In some examples, pulsed electrochemical machining (pECM) system, including an pECM tool comprising a tool body, the tool body comprising an electrode defining a working surface configured to oppose a workpiece during a pECM process; an electrolyte system configured to supply electrolyte to an interelectrode gap between the working surface of the electrode and a target surface of the workpiece; and a power supply configured to generate a pulsed direct current between the one or more electrodes of the pECM tool and the workpiece during the pECM process. The electrode includes an oxidation resistant layer defining at least a portion of the working surface, and a diamond-like carbon coating that defines another surface of the electrode.

公开(公告)号：US11970985B1

公开(公告)日：2024-04-30

申请号：US18234654

申请日：2023-08-16

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

Inventor： Robert W. Heeter ,  Daniel E. Molnar, Jr. ,  Jonathan M. Rivers ,  Michael S. Krautheim

IPC: F01D17/14 ,  F02C9/22 ,  F04D29/52 ,  F04D29/54 ,  F04D29/68

CPC classification number: F02C9/22 ,  F01D17/141 ,  F04D29/526 ,  F04D29/542 ,  F04D29/68

Abstract: A gas turbine engine includes a fan and a fan case assembly. The fan includes a fan rotor configured to rotate about an axis of the gas turbine engine and a plurality of fan blades coupled to the fan rotor for rotation therewith. The fan case assembly extends circumferentially around the plurality of fan blades radially outward of the plurality of the fan blades.

公开(公告)号：US11946414B2

公开(公告)日：2024-04-02

申请号：US17553700

申请日：2021-12-16

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

Inventor： Robert W. Heeter ,  Christopher D. Hall ,  Daniel E. Molnar, Jr.

IPC: F02C7/045 ,  F02K1/82 ,  G10K11/168 ,  G10K11/172

CPC classification number: F02C7/045 ,  F02K1/827 ,  G10K11/168 ,  G10K11/172 ,  F05D2220/323 ,  F05D2260/963 ,  F05D2300/121 ,  F05D2300/603 ,  F05D2300/612

Abstract: An acoustic panel for a gas turbine engine, includes a panel body, a panel-body cover, and a support bracket. The panel body is configured to dampen vibrations caused by the gas turbine engine. The forward support bracket is configured to mount the acoustic panel to portions of the gas turbine engine.

公开(公告)号：US20240056007A1

公开(公告)日：2024-02-15

申请号：US17819527

申请日：2022-08-12

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

Inventor： Peter Schenk ,  Erik A. Munevar ,  Rigoberto J. Rodriguez

IPC: H02P9/08 ,  F02C7/268

CPC classification number: H02P9/08 ,  F02C7/268 ,  H02P2101/25

Abstract: An example system includes a power electronics system; a starter electrically connected to the power electronics system and configured to start a gas-turbine engine of an aircraft; and an energy storage system electrically connected to the power electronics system and configured to provide direct current (DC) electrical energy to the power electronics system, wherein the power electronics system is configured to deliver alternating current (AC) electrical energy to the starter to start the gas-turbine engine using the DC electrical energy from the energy storage system and AC electrical energy sourced from an AC electrical bus of the aircraft.

公开(公告)号：US11885225B1

公开(公告)日：2024-01-30

申请号：US18101568

申请日：2023-01-25

Applicant: Rolls-Royce Corporation

Inventor： Ted J. Freeman ,  Aaron D. Sippel ,  David J. Thomas

IPC: F01D11/08 ,  F01D25/24

CPC classification number: F01D11/08 ,  F01D25/246 ,  F05D2240/11 ,  F05D2300/6033

Abstract: A turbine shroud assembly includes a carrier segment, a blade track segment, and a retainer. The carrier segment is formed to include an attachment-receiving space. The blade track segment includes a shroud wall and attachment flanges that extends radially outward from the shroud wall into the attachment-receiving space of the carrier segment. The retainer couples the blade track segment to the carrier segment.

公开(公告)号：US11879343B2

公开(公告)日：2024-01-23

申请号：US17412220

申请日：2021-08-25

Applicant: Rolls-Royce Corporation

Inventor： Christopher D. Hall ,  William B. Bryan ,  Daniel E. Molnar, Jr.

IPC: F01D17/16 ,  F01D17/02 ,  F04D29/56 ,  F01D9/04

CPC classification number: F01D17/162 ,  F01D17/02 ,  F01D9/041 ,  F04D29/563 ,  F05D2220/32 ,  F05D2240/12 ,  F05D2270/05 ,  F05D2270/101 ,  F05D2270/304 ,  F05D2270/334

Abstract: A fan assembly includes a fan duct, an inlet fan, an outlet guide vane assembly, and a control system. The inlet fan includes fan blades adapted to rotate about a central axis to force fan exit air toward an aft end of the fan duct. The outlet guide vane assembly is located in the fan duct downstream of the inlet fan and is configured to adjust a direction of the fan exit air. The outlet guide vane assembly includes a plurality of guide vanes that extend radially relative to the central axis and are configured to rotate to a first vane-pitch angle. The control system is configured to rotate the guide vanes redirect the fan exit air, vary a pressure downstream of the fan inlet, minimize intake flow distortion experienced by the inlet fan, reduce inlet fan vibratory response and/or improve fan operability margins.