公开(公告)号：US20220065171A1

公开(公告)日：2022-03-03

申请号：US17401647

申请日：2021-08-13

Applicant: ROLLS-ROYCE plc

Inventor： Richard G. STRETTON ,  Richard SHARPE

IPC: F02C7/36 ,  B64D13/02 ,  B64D27/10 ,  F02C9/18

Abstract: A gas turbine engine includes an engine core including a compressor, a combustor, and a turbine, the compressor being connected to the turbines through a respective shaft; and a cabin blower system comprising: an electric variator comprising a first electrical machine connected to a first shaft arranged along a first axis, a second electrical machine connected to a second shaft arranged along a second axis, and a power management system; a cabin blower comprising a compressor driven by a third shaft arranged along a third axis, the compressor comprising an air inlet and an air outlet; and a differential gearbox. The gas turbine engine further includes an accessory gearbox arranged within an accessory gearbox casing and adapted to drive the cabin blower system.

公开(公告)号：US20210246811A1

公开(公告)日：2021-08-12

申请号：US17169624

申请日：2021-02-08

Applicant: ROLLS-ROYCE plc

Inventor： Alan R. MAGUIRE ,  Richard SHARPE ,  Neil J. DAVIES

IPC: F01D25/20 ,  F01M1/02

Abstract: A system for supplying lubricant to a component of a gas turbine engine having a fan shaft is provided. The system includes a pump drivably couplable to the fan shaft for pumping lubricant to the component. The pump includes an inlet for receiving lubricant from a lubricant source, an outlet for outputting lubricant to the component and a swashplate movable between at least a first position and a second position. The system also includes a swashplate actuator for actuating the swashplate between the first position and the second position according to whether the fan shaft is rotating in a forward direction or a reverse direction opposite to the forward direction.

公开(公告)号：US20190233125A1

公开(公告)日：2019-08-01

申请号：US16239338

申请日：2019-01-03

Applicant: ROLLS-ROYCE plc

Inventor： Glenn A. KNIGHT ,  Richard SHARPE

IPC: B64D13/04 ,  F02C7/32 ,  F02C7/26 ,  F01D15/10 ,  F16H3/08 ,  F16H1/28 ,  F04D25/06

CPC classification number: B64D13/04 ,  B64D13/02 ,  F01D15/10 ,  F02C7/26 ,  F02C7/32 ,  F04D25/06 ,  F05D2220/323 ,  F05D2220/76 ,  F05D2260/40311 ,  F16H1/28 ,  F16H3/08

Abstract: An aircraft cabin blower system includes a transmission configured to receive mechanical power from a gas turbine engine in the form of a first transmission input; and an electrical circuit including a first electrical machine, a second electrical machine, and power management system, wherein, when operating in a blower mode, the first electrical receives mechanical power from the gas turbine engine and act as a generator to provide electrical power to the power management system, and the second electrical machine acts as a motor providing mechanical power to the transmission in the form of a second transmission input, the second electrical machine being driven by electrical power from the power management system. The transmission's output drives a cabin blower compressor when operating in the blower mode, a speed of the output of the transmission being determined by a function of a speed of the first and second transmission inputs.

公开(公告)号：US20220161932A1

公开(公告)日：2022-05-26

申请号：US17514399

申请日：2021-10-29

Applicant: ROLLS-ROYCE plc

Inventor： Richard SHARPE

IPC: B64D13/06 ,  F02C7/36

Abstract: Aircraft cabin blower systems and methods of operating aircraft cabin blower systems are provided. One aircraft cabin blower system comprises: a cabin blower compressor having a contactless bearing arrangement; a transmission having a transmission output arranged to drive the cabin blower compressor, a first transmission input arranged to receive mechanical power from a gas turbine engine, and a second transmission input; a reversible variator arranged to receive power from the gas turbine engine and to output mechanical power to the second transmission input, the reversible variator operable to output in both forward and reverse directions of rotation; and a controller configured to control an output speed and direction of rotation of the reversible variator.

公开(公告)号：US20170233080A1

公开(公告)日：2017-08-17

申请号：US15415568

申请日：2017-01-25

Applicant: ROLLS-ROYCE PLC

Inventor： Glenn A. KNIGHT ,  Alan R. MAGUIRE ,  Richard SHARPE

IPC: B64D13/00 ,  F01D13/00 ,  F01D17/16 ,  F02C7/32 ,  F02C7/277

CPC classification number: B64D13/00 ,  B64D13/04 ,  B64D2013/0696 ,  F01D13/00 ,  F01D17/16 ,  F02C7/26 ,  F02C7/277 ,  F02C7/32 ,  F05D2220/323 ,  F05D2260/406 ,  F05D2260/85 ,  Y02T50/44 ,  Y02T50/671

Abstract: An aircraft cabin blower system is described having a hydraulic circuit comprising a first hydraulic device and a second hydraulic device. The first hydraulic device is mechanically coupled to a cabin blower compressor and the second hydraulic device is arranged in use to be mechanically coupled to a spool of a gas turbine engine. The first hydraulic device is capable of performing as a hydraulic motor and the second hydraulic device is capable of performing as a hydraulic pump. When, in use, the system is operating in a cabin blower configuration, a driving force supplied by the spool of the gas turbine causes the second hydraulic device to pump liquid provided in the hydraulic circuit and thereby to drive the first hydraulic device, which in turn rotates the cabin blower compressor.

公开(公告)号：US20230304440A1

公开(公告)日：2023-09-28

申请号：US18183989

申请日：2023-03-15

Applicant: ROLLS-ROYCE plc

Inventor： Jonathan E. HOLT ,  Richard SHARPE

IPC: F02C7/224 ,  F02C7/32 ,  B64D13/02 ,  B64D37/30

CPC classification number: F02C7/224 ,  F02C7/32 ,  B64D13/02 ,  B64D37/30 ,  F05D2220/323 ,  F05D2240/36

Abstract: Disclosed is a fuel system for a gas turbine engine. The system comprises a fuel pump for fluid communication with a fuel reservoir; a driving turbine for driving the fuel pump; and a source of compressed air flow to drive the driving turbine. The source of compressed air may be the engine core, a dedicated fuel system compressor or the compressor of a cabin blower system.

公开(公告)号：US20190233124A1

公开(公告)日：2019-08-01

申请号：US16238841

申请日：2019-01-03

Applicant: ROLLS-ROYCE PLC

Inventor： Richard SHARPE ,  Glenn A KNIGHT

IPC: B64D13/02 ,  F04D13/02 ,  F04D27/00 ,  F04D29/05 ,  F02C7/275 ,  B64D41/00 ,  F02C7/32 ,  F01D15/10

Abstract: An aircraft cabin blower system includes: a transmission configured to receive mechanical power from a first part of a gas turbine engine in the form of a first transmission input; and an electrical circuit including a first electrical machine, a second electrical machine, and a power management system, wherein an output of the transmission is configured to drive a cabin blower compressor when operating in a blower mode, the first electrical machine being configured to receive mechanical power from a second part of the gas turbine engine and act as a generator to provide electrical power to the power management system, and the second electrical machine being configured to act as a motor providing mechanical power to the transmission in the form of a second transmission input, the second electrical machine being driven by electrical power from the power management system.

公开(公告)号：US20190233123A1

公开(公告)日：2019-08-01

申请号：US16238700

申请日：2019-01-03

Applicant: ROLLS-ROYCE PLC

Inventor： Richard SHARPE ,  Glenn A KNIGHT

IPC: B64D13/02 ,  F02C7/27 ,  B64D41/00 ,  F16H3/08 ,  F02C7/32

CPC classification number: B64D13/02 ,  B64D41/00 ,  F02C7/27 ,  F02C7/32 ,  F05D2260/4031 ,  F16H3/08

Abstract: A transmission for receiving mechanical power from a gas turbine engine; and a cabin blower compressor, an output of the transmission being configured to drive the cabin blower compressor; wherein the transmission has a variable gear ratio and the cabin blower compressor has a variable geometry, wherein variation of the gear ratio and the geometry provides a variable output of the cabin blower compressor.