AC generator

Details AC generator AC generator

1988-09-21

1991-05-28

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 52, 310 54, 310 58, H02K 900, H02K 132

Patent

active

050197339

ABSTRACT:
An excitation-type AC generator having stator and field coils cooled by a fluid passing through passageways within the rotating shaft of the rotor. The fluid, either engine oil or outside air, is drawn into a hole in the end of the rotating shaft, transported axially through a passageway in the shaft, then forced radially outward through channels in the rotating shaft into the areas surrounding the field and stator coils, absorbing the heat generated and eliminating any need for an externally mounted centrifugal fan.

REFERENCES:
patent: 3591816 (1971-07-01), Sakamoto
patent: 3742266 (1973-06-01), Heller et al.
patent: 4221982 (1980-09-01), Raver
patent: 4350908 (1982-09-01), Riffe
patent: 4757221 (1988-07-01), Kurihashi
patent: 4902922 (1990-02-01), Annouazzi

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