公开(公告)号：US20200227966A1

公开(公告)日：2020-07-16

申请号：US16720463

申请日：2019-12-19

Applicant: ROLLS-ROYCE plc

Inventor： Giles E. HARVEY ,  Paul A. SMEETON ,  Ellis F H CHONG

IPC: H02K3/28 ,  B64D27/24 ,  B64C11/46 ,  B64D35/02

Abstract: A vehicle propulsion system comprises a first propulsor and a second propulsor. The first and second propulsors are coupled to an electric machine comprising a stator and first and second rotors. Each of the first and second rotors are electromagnetically coupled to the stator. The first rotor is coupled to the first propulsor and the second rotor is coupled to the second propulsor.

公开(公告)号：US20240213842A1

公开(公告)日：2024-06-27

申请号：US18532196

申请日：2023-12-07

Applicant: ROLLS-ROYCE plc

Inventor： Paul A. SMEETON

IPC: H02K3/30 ,  H02K3/42 ,  H02K3/493

CPC classification number: H02K3/30 ,  H02K3/42 ,  H02K3/493

Abstract: There is provided an electrical machine comprising: a rotor at least partially disposed within a rotor chamber; a stator core coaxially arranged with the rotor chamber; and a stator sleeve. The stator sleeve is annular and is positioned between the stator core and the rotor chamber. The stator sleeve comprises a magnetic material having a relative permeability of at least and an intrinsic coercivity no greater than 1 kAm−1.