Axial blower for cooling the condenser of an air conditioner

Details Axial blower for cooling the condenser of an air conditioner Axial blower for cooling the condenser of an air conditioner

1992-07-02

1993-08-17

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Ambient fluid or exhaust gas directed through hub, fairing...

416144, 415180, 417371, 310 62, F04D 2958

Patent

active

052363066

ABSTRACT:
An axial blower has a blower motor and a blower wheel. The blower motor includes a motor shaft; a motor housing; a front and a rear bearing cover attached to the motor housing; ventilating openings provided in the front bearing cover; and air outlet openings provided in the rear bearing cover. The blower wheel includes a hollow hub surrounding the rear side of the motor housing; a plurality of impellers affixed to the exterior of the hub and projecting therefrom; a plurality of vane-like ribs carried by the hub at the interior thereof for generating a cooling air stream flowing between the hub and the motor housing; a bell-shaped part forming an axial continuation of the hub and surrounding the front side of the motor housing, a bottom portion, a central opening in the bottom portion and a plurality of ventilating openings provided in the bottom portion. The ventilating openings are arranged in a circular array concentrically with the central opening. The cooling air stream passes through the ventilating openings in the front bearing cover, the outlet openings in the rear bearing cover and the ventilating openings in the bottom portion of the bell-shaped part. A mounting sleeve is firmly held in the central opening of the bottom portion and surrounds the motor shaft for fixedly securing the bell-shaped part to the motor shaft.

REFERENCES:
patent: 2573875 (1961-11-01), Riddiford
patent: 2951542 (1960-09-01), Stulen et al.
patent: 3385516 (1968-05-01), Omohundro
patent: 3449605 (1969-06-01), Wilson
patent: 3932070 (1976-01-01), Porter et al.
patent: 4476405 (1984-10-01), Komurasaki
patent: 4626720 (1986-12-01), Fukasaku et al.
patent: 4817455 (1989-04-01), Buxe

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