公开(公告)号：US12215626B2

公开(公告)日：2025-02-04

申请号：US18488217

申请日：2023-10-17

Applicant: ROLLS-ROYCE plc

Inventor： David M. Donnelly ,  Caroline L. Turner ,  Derek S. Wall ,  Peter F. Douglas

IPC: F02C7/26 ,  F02C6/00 ,  F02C9/28 ,  F01D19/00

Abstract: There is provided a method of starting a gas turbine engine, comprising: selecting a baseline starting procedure of the gas turbine engine based on environmental data; receiving condition information for the gas turbine engine and/or for a starting system of the gas turbine engine, the condition information comprising at least one of: health information for the gas turbine engine and/or the starting system; maintenance information for the gas turbine engine and/or the starting system; and operation information relating to an expected future usage of the gas turbine engine. The method further comprises determining a predicted degradation profile for the gas turbine engine and/or the starting system based on the condition information; determining a starting procedure of the gas turbine engine by adapting the baseline starting procedure based on the predicted degradation profile; and controlling the gas turbine engine and/or the starting system according to the determined starting procedure.

公开(公告)号：US20210017914A1

公开(公告)日：2021-01-21

申请号：US16892472

申请日：2020-06-04

Applicant: ROLLS-ROYCE plc

Inventor： Caroline L. Turner

IPC: F02C9/48 ,  F01D15/10 ,  F01D21/14 ,  F02C6/00

Abstract: A gas turbine engine for an aircraft comprises a high-pressure (HP) spool comprising an HP compressor and a first electric machine driven by an HP turbine; a low-pressure (LP) spool comprising an LP compressor and a second electric machine driven by an LP turbine; and an engine controller configured to identify a condition to the effect that the engine is in an approach idle condition, and operate the first electric machine in a motor mode and operate the second electric machine in a generator mode to transfer power electrically from the LP spool to the HP spool to thereby reduce the LP spool rotational speed and increase the HP spool rotational speed.