Reverse flow cooling for fan motor

Details Reverse flow cooling for fan motor Reverse flow cooling for fan motor

2007-03-05

2010-10-26

Kramer, Devon C (Department: 3746)

Pumps

Motor driven

Including means utilizing pump fluid for augmenting cooling,...

C417S369000, C417S423500, C417S423800

Reexamination Certificate

active

07819641

ABSTRACT:
An air mover, such as a cooling fan, comprises a motor and an impeller which is driven by the motor to generate a flow of air through a flowpath. The motor comprises at least one inlet opening and at least one outlet opening, each of which is in fluid communication with the flowpath. In operation of the air mover, a pressure difference between the inlet and outlet openings causes a portion of the flow of air to flow into the inlet opening, through the motor and out the outlet opening to thereby cool the motor.

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