Noise dampening means for a permanent magnet synchronous motor

Details Noise dampening means for a permanent magnet synchronous motor Noise dampening means for a permanent magnet synchronous motor

1975-08-07

1977-11-01

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310162, 310156, 29598, H02K 524

Patent

active

040567443

ABSTRACT:
Noise caused by axial rotor oscillation is reduced by reducing the rotor's oscillations. Such reduction of oscillation is provided by making one set of stator poles shorter than the other or by providing a magnetic attraction between the rotor and the motor housing.

REFERENCES:
patent: 2823327 (1958-02-01), Kohlhagen
patent: 3307056 (1967-02-01), Woolley
patent: 3333129 (1967-07-01), Kohlhagen
patent: 3719842 (1973-03-01), Kuntz
patent: 3894252 (1975-07-01), Miwa
patent: 3906264 (1975-09-01), Kuwako

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