FRONT FAN RETENTION IN DUAL INTERNAL FAN ALTERNATOR

摘要

An alternator has a pole segment with a collar, an axially outward surface, and at least one key extending radially outward from the collar along the surface. A fan has a keying slot extending radially outward from a center ring, and a fan body including protrusions. The fan is mounted to the segment whereby the collar fits inside the ring and the key fits inside the keying slot, and the fan is welded to the segment at the protrusions. A method includes securing a fan to a pole segment by mating a radially-extending key formed on the segment to a keying slot of the fan and by welding the fan to the segment.

主权项

1. An alternator having a center axis, comprising:
a pole segment having a collar, a plurality of claw poles, an axially outward segment surface connecting the claw poles, and at least one key extending radially outward from the collar along the segment surface; a fan having an inside diameter formed as a ring, a keying slot positioned radially outward from the ring, a plurality of blades, and a fan body connecting the blades and including a plurality of protrusions; wherein the fan is mounted to the segment so that the collar fits inside the ring and the key fits inside the keying slot, and wherein the fan is welded to the segment at the protrusions.