Eddy current coupling having rotating and non-rotating flux path

Details Eddy current coupling having rotating and non-rotating flux path Eddy current coupling having rotating and non-rotating flux path

1980-11-03

1983-04-05

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 96, H02K 4902

Patent

active

043792421

ABSTRACT:
An eddy current coupling has rotating and non-rotating flux paths to use the rotating portions as both magnetic and mechanical members, reduce physical dimensions of the coupling, and improve heat dissipation from the coil.
The coupling (10) has an inductor (20) mounted on the input shaft. A magnetic rotor (22) is mounted on the output shaft with poles (30, 32) spaced from the inductor. A field coil (36) is positioned radially inwardly from the rotor and generates a flux, causing torque transmission between the inductor and rotor.
A stationary field coil support (38) is mounted in proximity to the rotor poles for providing a stationary flux return path between the poles. The support is positioned with respect to the rotating element of the coupling, so that these elements may provide a rotating flux return path in parallel with the stationary flux path of the support.

REFERENCES:
patent: Re27337 (1972-04-01), Jaeschke
patent: 2817029 (1957-12-01), Jaeschke
patent: 2838702 (1958-06-01), Winther
patent: 2855527 (1958-10-01), King
patent: 3012160 (1961-12-01), Sturzenegger
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patent: 3372292 (1968-03-01), Lynch et al.
patent: 3389278 (1968-06-01), Jaeschke
patent: 3423615 (1969-01-01), Patton
patent: 3486052 (1969-12-01), Jaeschke
patent: 3742270 (1973-06-01), Jaeschke
patent: 3996485 (1976-12-01), Jaeschke

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