Eddy current coupling having stepped rotor and coil support

Details Eddy current coupling having stepped rotor and coil support Eddy current coupling having stepped rotor and coil support

1982-04-26

1987-07-28

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Rotary

H02K 4902

Patent

active

046833927

ABSTRACT:
An eddy current coupling has a field coil (42) for magnetically coupling an inductor drum (26) and rotor (28). The thickness of the supporting arm (48) for the coil increases in a step-wise manner in a direction away from the end of the arm. The diameter of the adjacent portions (30) of the rotor is reduced in a corresponding manner to provide a plurality of air gaps (54a, 54b, 54c) across which the flux passes in radial directions. The flux passage and heat removal characteristics of the coupling are enhanced.

REFERENCES:
patent: 3150276 (1964-09-01), Moyer
patent: 3167674 (1965-01-01), Woodward, Jr.
patent: 3198975 (1965-08-01), Fisher

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