Heat exchange – Structural installation
Patent
1993-08-18
1994-12-27
Ford, John K.
Heat exchange
Structural installation
417368, 4174232, 4174238, 110162, 454 16, 454 18, 310 89, 4152141, F23L 1700
Patent
active
053756517
ABSTRACT:
A draft inducer blower motor mounting and cooling construction comprising an electric motor including a housing having openings therein and a rotor mounted on a shaft, a fan blade fixed on the shaft and interposed between the motor and the draft inducer blower, and a heat shield interposed between the motor housing and the fan blade. The heat shield is fastened to the electric motor and to the housing of the inducer blower and has portions spaced from the blower housing. The heat shield further preferably includes a portion surrounding at least a part of the motor housing such that rotation of the fan blade draws cooling air through the electrical motor and about the housing of the electric motor and thereafter radially outwardly between the heat shield and the inducer blower housing to cool the electric motor and the shaft end bearing nearest the inducer housing. In another form, the portion surrounding the motor may be eliminated.
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Ford John K.
Magnetek Universal Electric
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