Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1990-10-31
1992-01-07
Wong, Peter S.
Electrical generator or motor structure
Dynamoelectric
Rotary
41742314, H02K 522
Patent
active
050794647
ABSTRACT:
A motor includes a tubular steel frame with a stator unit fixedly mounted therein and spaced from the frame ends. Spaced bearing frames are secured within the tubular frame and support a rotor unit within the stator unit and in the bearing frames. One or both bearing frames are spaced from the tubular frame ends, and define corresponding auxiliary compartments. In a motor pump unit, an end plate closes one end and defines a control compartment. The pump housing closes the opposite end and forms a fan and drip compartment within the frame. The frame has openings in the drip compartment to by-pass pump water leakage from the motor compartment. A fan in the fan compartment provides motor cooling. Motor controls such as power connectors, a centrifugal start switch unit, electronic timers, and the like are mounted within the control compartment to form a self-contained motor. The motor compartment and various auxiliary compartments can be formed within the frame by appropriate securing of the bearing frames and internal walls in the tubular frame. Thus, two and three compartment motors are formed with one or more internal wall structures secured directly to the motor frame.
REFERENCES:
patent: 4172695 (1979-10-01), Uesugi
patent: 4491752 (1985-01-01), O'Hara et al.
patent: 4517481 (1985-05-01), Breining
patent: 4614904 (1986-09-01), Yamazaki et al.
patent: 4777393 (1988-10-01), Peot
patent: 4841183 (1989-06-01), Dohogne et al.
patent: 4961018 (1990-10-01), Akhter
patent: 5006743 (1991-04-01), King et al.
King James L.
Lykes Robert E.
A. O. Smith Corporation
Rebsch D. L.
Wong Peter S.
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