Title: Electromagnetic coupling and cooling system therefor

Abstract: An electromagnetic coupling is provided of the type including a housing, a rotor member disposed in the housing, and an inductor drum means disposed in the housing and rotatable relative to the rotor member. A coil means electromagnetically couples the rotor member and the inductor drum means. The inductor drum means includes a generally cylindrical drum portion having a substantially uniform magnetic reluctance. The drum portion defines an outer, heat-dissipating surface which includes a plurality of circumferentially extending, heat-dissipating grooves spaced apart along the longitudinal axis of the drum portion. A means is included for directing cooling fluid into the housing to dissipate the heat generated in the inductor drum means, and a plurality of fluid-directing members are disposed on the cylindrical drum portion adjacent the heat-dissipating surface.

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Inventors: Jaeschke, Ralph L. (Kenosha, WI, US)

Application Number: 572697
Filing Date: 1975-04-28
Publication_date: 1976-12-07
Assignee: Eaton Corporation (Cleveland, OH)
Primary Class(es): 310/103 310/63, 310/105
Other Classes:
US Patent Ref:

2345850	Apr, 1944	Winther	310/52.
2745974	May, 1956	Oetzel	310/93.
3641375	Feb, 1972	Moyer	310/105.
3742270	Jun, 1973	Jaeschke	310/105.

Other Refs:
Primary Examiner: Duggan, Donovan F.
Assistant Examiner:
Attorney: Teagno & Toddy