Magnetically assisted stepping motor

Details Magnetically assisted stepping motor Magnetically assisted stepping motor

1987-06-23

1989-05-02

Salace, Patrick R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 12, H02K 124, H02K 2138

Patent

active

048271640

ABSTRACT:
A stepping motor with toothed stator poles and toothed rotor poles is magnetically enhanced by locating permanently magnetized inserts in the spaces between the stator teeth and magnetizing the inserts transverse to the direction of movement of the rotor and substantially transverse to the direction in which the teeth extend. In a hybrid motor with a split and axially magnetized rotor, the inserts are magnetized to oppose the magnetization of the rotor. In a variable reluctance motor with an unmagnetized rotor, inserts are placed in both rotor and stator and magnetized to aid each other. Linear motors use either configuration.

REFERENCES:
patent: 4190779 (1980-02-01), Schaeffer
patent: 4581553 (1986-04-01), Moczala
patent: 4712028 (1987-12-01), Horber
patent: 4713370 (1987-12-01), Mastromattei
patent: 4728830 (1988-03-01), Gamble
patent: 4758756 (1988-07-01), Pouillange

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