Patent ID: 6396176
Filing Date: 2002-05-28
Classification: F04D,H02K

Abstract:
A fan for an electric motor, the electric motor including at least one air deflector, a stator, and a rotor assembly, the rotor assembly including a rotor core and a rotor shaft extending through the rotor core, said fan configured to attach to the electric motor rotor assembly, said fan comprising:a first shroud ring having a substantially circular shape; and a seal ring coupled to said first shroud ring to form a multi-component assembly, said seal ring extending from an outer surface of said first shroud ring, said seal ring comprising a body having a substantially cylindrical shape, said body comprising a first end and a second end, said body sized to provide a predetermined gap between an air deflector and said seal ring to minimize the flow of cooling air through a space between said first shroud ring and the air deflector.