Compact fan

Details Compact fan Compact fan

1981-01-22

1983-08-23

Gluck, Richard E.

Pumps

Motor driven

Motor within rotary pumping member

310 72, F04B 3504, H02K 1100

Patent

active

044001401

ABSTRACT:
The fan comprises a fan housing surrounding a fan wheel which is coaxial with the fan's drive motor. The drive motor is a permanent-capacitor induction motor with squirrel-cage rotor, the stator of which includes a main winding and an auxiliary winding, the former energized directly from a one-phase A.C. power source, the latter energized through the intermediary of a capacitor, the capacitor serving to produce a second or auxiliary phase of energization for the sake of a rotating stator field. In order that the capacitor not consume valuable space within the fan, especially in the case of a small fan, the capacitor is a wound capacitor of generally annular overall configuration, mounted coaxial with the drive motor radially outward of the drive motor.

REFERENCES:
patent: 1545422 (1925-07-01), Graichen
patent: 1894724 (1933-01-01), Apple
patent: 2032129 (1936-02-01), Jackson et al.
patent: 3011083 (1961-11-01), Jacob
patent: 3362627 (1968-01-01), Papst
patent: 3700358 (1972-10-01), Papst et al.

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