公开(公告)号：US20200080431A1

公开(公告)日：2020-03-12

申请号：US16128754

申请日：2018-09-12

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

Inventor： Sachin Dhiwar ,  Ted J. Freeman ,  Thomas Martin

IPC: F01D5/30 ,  F01D5/28 ,  F01D5/22

Abstract: A wheel assembly for a gas turbine engine includes a disk, a blade-attachment system, and a plurality of blades. The disk is configured to rotate about an axis during operation of the gas turbine engine. The blade-attachment system is configured to couple the plurality of blades with the disk for rotation therewith.

公开(公告)号：US10583931B2

公开(公告)日：2020-03-10

申请号：US14585888

申请日：2014-12-30

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

Inventor： Curtis H. Cline ,  Michael J. Armstrong

IPC: F02C6/14 ,  B64D31/12 ,  F02C7/32 ,  F02C9/48 ,  F01D15/10 ,  F02C7/36 ,  F02C9/00

Abstract: An integrated gas turbine engine, electrical power subsystem and thermal management subsystem for aerospace application includes a first motor/generator coupled to a low pressure (LP) shaft of the gas turbine engine, a second motor/generator coupled to a high pressure (HP) shaft of the gas turbine engine, and a system controller coupled to each of the gas turbine engine, a first motor generator and a second motor/generator, wherein the controller receives engine thrust demand and electrical power demand and is programmed to determine total system power demand and the amount of power sharing between the first motor/generator and the second motor/generator to meet thrust and electrical power demand.

公开(公告)号：US20200072125A1

公开(公告)日：2020-03-05

申请号：US16117756

申请日：2018-08-30

Applicant: Rolls-Royce North American Technologies Inc.

Inventor： Tony McKenney

IPC: F02C7/06 ,  F01D9/06 ,  F01D25/16 ,  F01D25/20

Abstract: An oil supply system includes an oil supply assembly in a turbine engine. The assembly includes scavenge cavity and an oil supply tube located in and protected by a strut in the turbine engine to supply oil to a bearing chamber.

公开(公告)号：US20200072066A1

公开(公告)日：2020-03-05

申请号：US16119388

申请日：2018-08-31

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

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

IPC: F01D9/04 ,  F01D25/24 ,  F01D25/00

Abstract: A vane assembly for a gas turbine engine is provided having an outer casing and an inner casing radially spaced apart from the outer casing. An airfoil extends radially between the outer casing and the inner casing. The airfoil includes a spar having an outer endwall positioned adjacent the outer casing and an inner endwall positioned adjacent the inner casing. A pressure side and a suction side extend between the inner endwall and the outer endwall. A ceramic matrix composite cover has a pressure side extending along the pressure side of the spar and a suction side extending along the suction side of the spar.

公开(公告)号：US20200072065A1

公开(公告)日：2020-03-05

申请号：US16119591

申请日：2018-08-31

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

Inventor： Aaron D. Sippel ,  Ted J. Freeman ,  Loic Fabries

IPC: F01D5/30 ,  F01D5/28

Abstract: A wheel assembly for a gas turbine engine includes a disk and a plurality of blades. The disk is configured to rotate about an axis during operation of the gas turbine engine. The blades each include a circumferentially extending root received in the disk and an airfoil that extends radially away from the root.

公开(公告)号：US20200072063A1

公开(公告)日：2020-03-05

申请号：US16119504

申请日：2018-08-31

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

Inventor： Aaron D. Sippel ,  Ted J. Freeman ,  Loic Fabries

IPC: F01D5/30

Abstract: A wheel assembly for a gas turbine engine includes a disk, a plurality of blades, and a platform system that includes a plurality of platforms and pins. The disk is configured to rotate about an axis during operation of the gas turbine engine. The blades each include a circumferentially extending root received in the disk and an airfoil that extends radially away from the root. The platforms are arranged around the wheel to define a flow path of the gas turbine engine and the pins extend into the platforms and the disk to couple the platforms with the disk.

公开(公告)号：US10577970B2

公开(公告)日：2020-03-03

申请号：US15264280

申请日：2016-09-13

Applicant: Rolls-Royce North American Technologies, Inc.

Inventor： Aaron P. Jennings

IPC: F01D25/14 ,  F01D11/10 ,  F01D11/08

Abstract: A turbine assembly for a gas turbine engine is disclosed herein. The turbine assembly includes a source of cooling air and a turbine shroud configured to extend around blades of a turbine stage and resist gasses from passing the blades without interaction with the blades. The turbine shroud includes a carrier segment comprising metallic materials and a blade track segment comprising ceramic matrix composite materials.

公开(公告)号：US10566120B2

公开(公告)日：2020-02-18

申请号：US15174002

申请日：2016-06-06

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

Inventor： Michael James Armstrong ,  Andrew Mark Bollman

IPC: H01F6/06 ,  H01F6/00

Abstract: A superconducting magnetic energy storage (SMES) device having a plurality of interwoven windings provides for alternative discharge paths for energy stored as magnetic fields in the windings in response to an open-circuit winding fault in one of the windings.

公开(公告)号：US10563522B2

公开(公告)日：2020-02-18

申请号：US14797916

申请日：2015-07-13

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

Inventor： David J. Thomas ,  Ted J. Freeman ,  Jeffrey A. Walston

IPC: F01D5/28 ,  F01D5/18 ,  F01D5/14

Abstract: Stationary vanes and rotating blades of a gas turbine engine are disclosed that include airfoils formed from ceramic matrix composite materials. The airfoils include at least one layer of ceramic-containing matrix material and ceramic-containing reinforcing fibers suspended in the matrix material. A core of the airfoils is surrounded by the at least one layer of ceramic-containing fiber/matrix material.

公开(公告)号：US20200047907A1

公开(公告)日：2020-02-13

申请号：US16600170

申请日：2019-10-11

Applicant: Rolls-Royce North American Technologies, Inc. ,  Bell Helicopter Textron Inc.

Inventor： Douglas Boyd ,  Brian Tucker

IPC: B64D31/06

Abstract: A multi-engine power system is described that includes at least a first engine and a second engine configured to jointly provided mechanical power to the multi-engine power system. The multi-engine power system further includes a controller configured to estimate a deterioration factor of the first engine. The controller is further configured to adjust, based on the deterioration factor of the first engine, a first amount of mechanical power being provided by the first engine to increase a service time of the first engine, and adjust, based on the first amount of mechanical power being provided by the first engine, a second amount of mechanical power being provided by the second engine to compensate for the adjustment to the first amount of mechanical power.