FORGED POLE WHEEL FOR A MOTOR VEHICLE ALTERNATOR PROVIDED WITH INTERPOLAR PERMANENT MAGNETS

摘要

The pole wheel according to the invention is intended for the rotor of a Lundell rotating electric machine. The pole wheel is obtained entirely by forging and comprises a central core provided with a central bore in a central axis of the pole wheel intended to receive a shaft of the rotor, a plurality of pole teeth (10g, 11g) distributed in a regular manner at the circumference of the pole wheel and extending substantially parallel to the central axis of the pole wheel, and an annular part forming a plate and extending between the central core and parts forming bases of said pole teeth. According to the invention, the pole wheel comprises a plurality of reservoirs (105) provided in the parts forming bases of the pole teeth.