公开(公告)号：US20230101578A1

公开(公告)日：2023-03-30

申请号：US17941374

申请日：2022-09-09

申请人： ROLLS-ROYCE PLC

发明人： Peter SWANN ,  Kevin M BRITCHFORD

IPC分类号： B64D27/10 ,  B64D27/24 ,  B64D31/00 ,  F02C6/00

摘要： An aircraft hybrid propulsion system (5) comprising an inboard gas turbine engine (10a, 10c) and an outboard gas turbine engine (10b, 10d), each comprising a propulsor (12a, 12b) and a respective electric machine (32a, 32b) coupled to one or more engine shaft (24a, 24b). An electrical interconnection (34) is provided between the electric machine (32a) of the inboard gas turbine engine (10a) and the electric machine (32b) of the outboard gas turbine engine (10b). A controller (36) is configured to transfer electrical power between the inboard gas turbine engine electrical machine and the outboard gas turbine engine electrical machine when a thrust setting change is selected.

公开(公告)号：US20230184179A1

公开(公告)日：2023-06-15

申请号：US17941358

申请日：2022-09-09

申请人： ROLLS-ROYCE plc

发明人： Peter SWANN ,  Kevin M BRITCHFORD

IPC分类号： F02C9/42 ,  F02C9/28

CPC分类号： F02C9/42 ,  F02C9/28 ,  F05D2220/323 ,  F05D2270/051 ,  F05D2270/333 ,  F05D2270/335 ,  F05D2270/71 ,  F05D2270/053 ,  B64D2027/026

摘要： An aircraft propulsion system comprises first and second thrust producing gas turbine engines. The system comprises a controller configured to determine a required overall propulsion system thrust level, and determine an engine core power level contribution from each aircraft gas turbine engine such that the overall propulsion system produces a minimum overall noise level and meets the required overall propulsion system thrust level. In meeting the minimum overall noise level, at least the first and second gas turbine engines are operated at different engine core power settings.