公开(公告)号：US11542021B2

公开(公告)日：2023-01-03

申请号：US17197708

申请日：2021-03-10

Applicant: ROLLS-ROYCE PLC

Inventor： Richard Harwood ,  Kalyani G. Menon ,  Joseph Palmer ,  Ivan Popovic

IPC: H02P23/14 ,  H02P5/74 ,  B64D27/24 ,  B63H21/20 ,  B61C5/00 ,  B63H21/17 ,  B64D27/02 ,  H02J7/34 ,  H02J3/02 ,  H02J50/10 ,  H02J3/00 ,  H02J3/46 ,  B64D27/10

Abstract: An aircraft propulsion system includes at least first and second electrical generators, each being configured to provide electrical power to a respective first and second AC electrical network. The system further comprises at least first and second AC electrical motors directly electrically coupled to a respective AC network and coupled to a respective propulsor, and a DC electrical network electrically coupled to the first and second AC networks via respective first and second AC to DC converters, and to a further electrical motor, the further electrical motor being coupled to a propulsor.

公开(公告)号：US10974836B2

公开(公告)日：2021-04-13

申请号：US15684265

申请日：2017-08-23

Applicant: ROLLS-ROYCE PLC

Inventor： Richard Harwood ,  Kalyani G Menon ,  Chloe Jo Palmer ,  Ivan Popovic

IPC: H02P25/02 ,  H02P27/16 ,  B60L50/13 ,  B64D27/24 ,  B63H21/20 ,  H02P5/74 ,  B61C5/00 ,  B63H21/17 ,  B64D27/02 ,  H02J3/46 ,  H02J3/00 ,  H02J7/34 ,  H02J3/02 ,  B64D27/10

Abstract: An aircraft propulsion system (10) comprises at least first and second electrical generators (15a, 15b), each being configured to provide electrical power to a respective first and second AC electrical network (16a, 16b). The system (10) further comprises at least first and second AC electrical motors (19a, 19b) directly electrically coupled to a respective AC network (16a, 16b) and coupled to a respective propulsor (4), and a DC electrical network electrically coupled to the first and second AC networks (16a, 16b) via respective first and second AC to DC converters (17a, 17b), and to a further electrical motor 19c), the further electrical motor (19c) being coupled to a propulsor (4).

公开(公告)号：US10450074B2

公开(公告)日：2019-10-22

申请号：US15205648

申请日：2016-07-08

Applicant: ROLLS-ROYCE plc

Inventor： Rory D. Stieger ,  Ivan Popovic

IPC: B64D13/02 ,  B64D13/06 ,  F02C6/08 ,  F02C7/08 ,  F02C7/277 ,  B64D27/16 ,  B64D41/00 ,  F01D15/10 ,  F02C3/13 ,  F02C9/18 ,  H02K7/18

Abstract: An aircraft pneumatic system includes a main gas turbine engine including a main compressor, a recuperated auxiliary gas turbine engine including a core compressor having an inlet in fluid communication with a main compressor bleed of the main gas turbine engine and an environmental control system inlet in fluid communication with the main compressor bleed of the main gas turbine engine. The environmental control system includes a compressor driveable by power provided by the auxiliary gas turbine engine.