Commutator motor useful for driving automatic washers

Details Commutator motor useful for driving automatic washers Commutator motor useful for driving automatic washers

1979-09-21

1982-04-06

Truhe, J. V.

Electricity: motive power systems

Alternating current commutating motors

Universal or a.c.-d.c. motors

318244, 318733, 318738, H02K 2364, H02P 736

Patent

active

043238319

ABSTRACT:
A commutator motor can be set to different speeds by changing the external circuit connections between the single phase AC supply line and the stator field winding. The field winding is distributed in slots over at least part of the circumference of the stator bore and the field winding connection is switched, when going from a lower to a higher speed, in such a way that the axis of the stator field is rotated in the direction of rotation of the motor. For improved performance, the number of excitation turns may also be changed, simultaneously with the rotation of the field axis. The motor is particularly useful for automatic washing machine drives having a universal motor.

REFERENCES:
patent: 4271380 (1981-06-01), Bradler et al.

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