No-back synchronous motor drive

Details No-back synchronous motor drive No-back synchronous motor drive

1976-10-14

1979-08-28

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

192 8R, H02K 710

Patent

active

041662261

ABSTRACT:
The present invention provides a permanent magnet type of synchronous a.c. motor embodying an improved form of no-back by which the motor upon being energized is caused to start from rest invariably in the predetermined direction of rotation.
Furthermore, the motor is capable of satisfactory operation in a wider range of angular positions of the motor shaft than prior motors, and it is inherently more sensitive to initiate the direction of rotation correctly than devices of the prior art.

REFERENCES:
patent: 2865479 (1958-12-01), Hungerford
patent: 2934188 (1960-04-01), Bremer
patent: 3427485 (1969-02-01), Dotto
patent: 3576240 (1971-04-01), Nicholson
patent: 3797614 (1974-03-01), McCay
patent: 3975652 (1976-08-01), Hammond

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