Stator drain and electrical apparatus employing the same

Details Stator drain and electrical apparatus employing the same Stator drain and electrical apparatus employing the same

1990-06-19

1991-07-23

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 54, 310 58, H02K 916, H02K 900

Patent

active

050346393

ABSTRACT:
A stator drain supports stator windings and rotor bearings and permits fluid coolant for the rotor bearings to be drained outward past the stator windings from the bearings. The drain is formed of a non-metallic material and has an inner surface for supporting a bearing liner of the rotor bearings, a plurality of spaced openings for receiving stator windings and drain slots extending through the annular member at locations corresponding to spaces between the stator windings for draining the fluid coolant. The stator drain is useful in a dual permanent magnet generator, for example.

REFERENCES:
patent: 2476892 (1949-07-01), Mueller
patent: 2545335 (1950-03-01), Becker
patent: 4262224 (1981-04-01), Kofink et al.
patent: 4305031 (1981-12-01), Wharton
patent: 4311932 (1982-01-01), Olson
patent: 4514652 (1985-04-01), Olson
patent: 4644207 (1987-02-01), Catterfeld et al.
patent: 4654577 (1987-03-01), Howard
patent: 4728840 (1988-03-01), Newhouse
patent: 4745314 (1988-05-01), Nakano
patent: 4879484 (1989-11-01), Huss
patent: 4947639 (1990-08-01), Hibner et al.

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