Patent ID: 11863038
Assignee: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B  Y | IPC B  H

Claim 13:
14. A hybrid electric aircraft comprising:
an electric machine comprising:
a stator comprising:
at least two individual-tooth winding carriers, wherein two individual-tooth winding carriers of the at least two individual-tooth winding carriers are spaced apart from one another in a circumferential direction;
a dividing wall disposed between the two individual-tooth winding carriers;
a first individual-tooth winding mounted on a first individual-tooth winding carrier of the two individual-tooth winding carriers, the first individual-tooth winding comprising first turns spaced apart along the first individual-tooth winding carrier;
a second individual-tooth winding mounted on a second individual-tooth winding carrier of the two individual-tooth winding carriers, the second individual-tooth winding comprising second turns spaced apart along the second individual-tooth winding carrier;
a first cooling channel disposed between the first individual-tooth winding carrier and the dividing wall, wherein the first turns have first circumferential surfaces, respectively, within the first cooling channel; and
a second cooling channel disposed between the second individual-tooth winding carrier and the dividing wall, wherein the second turns have second circumferential surfaces, respectively, within the second cooling channel,

wherein the first cooling channel has a first cooling path configured to enable flow through a first gap, the first gap being between the first circumferential surfaces of the first turns and the dividing wall, and
wherein the second cooling channel has a second cooling path configured to enable flow through a second gap, the second gap being between the second circumferential surfaces of the second turns and the dividing wall.