Fan hub assembly for effective motor cooling

Details Fan hub assembly for effective motor cooling Fan hub assembly for effective motor cooling

2007-07-17

2007-07-17

Koczo, Jr., Michael (Department: 3746)

Pumps

Motor driven

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

C310S062000

Reexamination Certificate

active

10675342

ABSTRACT:
An electrically powered axial-flow fan has a hub to house the motor and support the fan blades. Small blades or vanes on the inside of the hub function as a radial-flow blower to draw cooling air through cooling ports on the electric motor housing. The vanes inside the hub cooperate with a flange surrounding the motor to form a low pressure chamber under the hub to improve cooling flow through the motor. This motor cooling air flow is then ejected into the exhaust stream of the axial-flow fan.

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