Patent ID: 11929646
Assignee: SAFRAN ELECTRICAL & POWER
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B | IPC B  H

Claim 11:
12. A method of manufacturing a rotor for an electric machine for an aircraft, the method comprising the steps of:
providing a hollow tube forming a shaft portion;
providing a core pack portion, comprising a plurality of poles;
providing a back iron portion;
wherein an internal diameter of the shaft portion is reduced in a back iron region which is longitudinally aligned, along a rotation axis, with the core pack portion; and
assembling the rotor such that the core pack portion and the back iron portion are disposed around the shaft portion, and the back iron portion and the shaft portion provide a path for magnetic flux to flow between adjacent poles of the core pack portion;
wherein each of the shaft portion, the core pack portion and the back iron portion comprise a soft magnetic material.