Fan with motor cooling and enhancement.

摘要

A fan (10) adapted to be driven by an electrical motor (12), the motor of the type having openings (14) to permit the flow of air therethrough to cool internal components of the motor. The fan comprising a cup-shaped hub (20) adapted to be driven by the motor and including a plurality of arcuately shaped webs (44,70) for inducing the flow through the motor and through a plurality of openings (40) formed in a axially extending wall (28) of the hub 20.