Cooling apparatus for an AC generator

Details Cooling apparatus for an AC generator Cooling apparatus for an AC generator

1996-09-26

1998-02-10

Dougherty, Thomas M.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 54, 310 58, 310 64, H02K 524

Patent

active

057172625

ABSTRACT:
A cooling apparatus is provided for an AC generator, particularly for a transverse-flow generator having a stator with at least one armature winding, as well as a rotor disposed opposite the armature winding. Collector rings are secured to a carrier disk attached to a rotor shaft. The collector rings have a plurality of polarized magnets and magnetizable collector elements in alternating sequence disposed therein. At least one cooling channel through which a coolant can flow is provided in the vicinity of the carrier disk. The cooling channel is separated from the carrier disk only by a channel cover which has a minimal thickness and by the air gap between the rotor and the stator.

REFERENCES:
patent: 2345850 (1944-04-01), Winther
patent: 2407504 (1946-09-01), Martin
patent: 2473259 (1949-06-01), Potts
patent: 2922056 (1960-01-01), Jaeschke
patent: 4168445 (1979-09-01), Hatch
patent: 4227102 (1980-10-01), Rozenfeld et al.
patent: 4275323 (1981-06-01), Hatch
patent: 4757224 (1988-07-01), McGee et al.
patent: 4973868 (1990-11-01), Wust
patent: 5051641 (1991-09-01), Weh
patent: 5289072 (1994-02-01), Lange
patent: 5557153 (1996-09-01), Zimmermann
patent: 5606946 (1997-03-01), Data et al.

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