公开(公告)号：US12017790B2

公开(公告)日：2024-06-25

申请号：US17061079

申请日：2020-10-01

Applicant: ROLLS-ROYCE PLC ,  ROLLS-ROYCE CORPORATION

Inventor： Daniel Swain ,  Rory D. Stieger ,  Mark D. Taylor

IPC: F02C3/08 ,  B64D27/10 ,  B64D41/00 ,  F02C6/00 ,  H02K11/33

CPC classification number: B64D41/00 ,  B64D27/10 ,  F02C3/08 ,  F02C6/00 ,  H02K11/33 ,  F05D2220/32 ,  F05D2220/50

Abstract: An auxiliary power unit (10) for an aircraft (1) comprises a gas turbine engine comprising an engine core (12). The engine core comprises a core compressor (14) and core turbine (18) coupled by a core shaft (24). The auxiliary power unit further comprises a load spool comprising a load compressor (30), a load turbine (20) and a permanent magnet electric machine (28), each being coupled by a load shaft (26). The load shaft (26) and core shaft (24) are configured to rotate independently of one another.