Fan assembly

Details Fan assembly Fan assembly

1988-08-26

1989-09-12

Beha, Jr., William H.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 59, 310 60A, 310 63, 310227, H02K 500

Patent

active

048663204

ABSTRACT:
A fan assembly that includes an impeller driven by an electric motor. The housing for the impeller has an air intake opening and a pressure-side connection for the discharge of air, with the pressure-side connection being provided with an air inlet opening that communicates with an air conduit that in turn leads to the electric motor housing. Air that flows through the air conduit is supplied at least to the region of the commutator of the electric motor. The electric motor housing is provided with an air outlet opening for receiving air that has been supplied to the electric motor housing via the air conduit, with this air outlet opening being in flow communication with an underpressure region of the impeller remote from the pressure-side connection of the impeller housing.

REFERENCES:
patent: 3648086 (1972-03-01), Renner et al.
patent: 3891355 (1975-06-01), Hecht et al.
patent: 4120616 (1978-10-01), Dwyer et al.
patent: 4742257 (1988-05-01), Carpenter

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