公开(公告)号：US11152844B2

公开(公告)日：2021-10-19

申请号：US16548032

申请日：2019-08-22

Applicant: ROLLS-ROYCE plc

Inventor： Paul R Miller ,  Stephen M Husband ,  Alexander C Smith ,  Charalampos Manolopoulos ,  Matteo Iacchetti

IPC: H02K55/04 ,  H02K3/02 ,  H02K3/14 ,  H02K3/42 ,  H02K7/18 ,  B64D27/24 ,  B64D27/02

Abstract: An electric machine including a stator having a fully non-magnetic core and stator windings formed of a non-superconducting transposed conductor to reduce eddy current losses. It further includes a rotor having a fully non-magnetic core and superconducting windings or superconducting magnets which produce a magnetic field for interaction with the stator windings. A cryogenic cooling system is arranged to cool the stator windings to reduce conduction losses in the stator windings.