公开(公告)号：US10700580B2

公开(公告)日：2020-06-30

申请号：US15915229

申请日：2018-03-08

Applicant: ROLLS-ROYCE plc

Inventor： Chloe Jo Palmer

IPC: H02K16/00 ,  H02K21/24 ,  H02K1/27 ,  H02K21/02 ,  H02K1/22 ,  B64D27/24 ,  B64C21/00 ,  B64C21/06 ,  H02P29/00

Abstract: An axial flux electrical machine comprises a first flux generating assembly, a second flux generating assembly, a shaft and a speed controller. The shaft has an axis of rotation. Each of the first flux generating assembly and the second flux generating assembly is rotationally located on the shaft in axial juxtaposition to one another, with the first flux generating assembly being axially separated from the second flux generating assembly by a separation distance. The speed controller is configured to modify a magnetic field generated by either of the first flux generating assembly and the second flux generating assembly so as to control a rotational speed of the electrical machine.

公开(公告)号：US12037127B2

公开(公告)日：2024-07-16

申请号：US18184804

申请日：2023-03-16

Applicant: ROLLS-ROYCE plc

Inventor： Chloe Jo Palmer ,  Jacopo Tacconi

IPC: B64D37/30 ,  F02C3/20 ,  F02C7/22 ,  F02C9/40 ,  H01M8/04007 ,  B64D27/02 ,  B64D27/10 ,  B64D41/00 ,  F02C7/18 ,  H01M8/04082 ,  H01M8/04111

CPC classification number: B64D37/30 ,  F02C3/20 ,  F02C7/22 ,  F02C9/40 ,  H01M8/04074 ,  B64D27/026 ,  B64D27/10 ,  B64D2041/005 ,  F02C7/18 ,  F05D2260/232 ,  H01M8/04111 ,  H01M8/04208 ,  H01M2250/20

Abstract: A hydrogen-fuelled aircraft power system incorporates a gas turbine engine and a fuel cell, in which air supply and cooling of the fuel cell is integrated with the gas turbine engine to improve overall efficiency of the power system. The system may be part of a turbofan, turboprop or electric propulsion system for an aircraft.

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).