公开(公告)号：US11905887B2

公开(公告)日：2024-02-20

申请号：US17988504

申请日：2022-11-16

Applicant: ROLLS-ROYCE plc

Inventor： Gareth E Moore ,  Paul R Davies ,  Stephen M Husband ,  David R Trainer ,  David P Scothern ,  Luke George ,  Douglas M M Herbert

IPC: F02C7/262 ,  F01D15/10

CPC classification number: F02C7/262 ,  F01D15/10 ,  F05D2220/323 ,  F05D2220/76 ,  F05D2260/85 ,  F05D2270/092 ,  F05D2270/093

Abstract: Multi-engine aircraft power and propulsion systems and methods of restarting an engine of a multi-engine aircraft during fight are provided. One such method comprises: determining a condition to the effect that a flame in the combustion equipment of the second gas turbine engine has been extinguished; responsive to the determination, supplying electrical power from the electrical energy storage system to one or more of the electric machines of the second gas turbine engine and operating said one or more electric machines as motors to limit a reduction in a speed of the one or more spools of the second gas turbine engine following extinguishment of the flame in its combustion equipment; and restarting the second gas turbine engine by relighting the combustion equipment of the second gas turbine engine.

公开(公告)号：US11073109B2

公开(公告)日：2021-07-27

申请号：US16569987

申请日：2019-09-13

Applicant: ROLLS-ROYCE plc

Inventor： Stuart Moss ,  Douglas M M Herbert

IPC: F02K3/075 ,  F02C3/113 ,  F02C7/32

Abstract: A gas turbine engine comprises a compressor having a plurality of blades mounted to a hollow, annular compressor drum. The compressor comprises an electric storage device mounted within the hollow compressor drum.