公开(公告)号：US20240229674A9

公开(公告)日：2024-07-11

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: F01D19/00 ,  F01D21/00

CPC classification number: F01D19/00 ,  F01D21/003 ,  F05D2260/80 ,  F05D2260/85

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：US20240133314A1

公开(公告)日：2024-04-25

申请号：US18488217

申请日：2023-10-16

Applicant: ROLLS-ROYCE plc

Inventor： David M. DONNELLY ,  Caroline L. TURNER ,  Derek S. WALL ,  Peter F. DOUGLAS

IPC: F01D19/00 ,  F01D21/00

CPC classification number: F01D19/00 ,  F01D21/003 ,  F05D2260/80 ,  F05D2260/85

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：US20210033031A1

公开(公告)日：2021-02-04

申请号：US16892589

申请日：2020-06-04

Applicant: ROLLS-ROYCE plc

Inventor： Caroline L. TURNER

IPC: F02C9/44

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, the first electric machine having a first maximum output power; a low-pressure (LP) spool comprising an LP compressor and a second electric machine driven by an LP turbine, the second electric machine having a second maximum output power; and an engine controller configured to identify a condition to the effect that the LP turbine is operating in an unchoked regime, and, in response to an electrical power demand being between zero and the first maximum output power, only extracting electrical power from the first electric machine to meet the electrical power demand.