Electric two-motor drive

Details Electric two-motor drive Electric two-motor drive

1978-09-29

1981-06-02

Weldon, Ulysses

Electricity: motive power systems

Alternating current commutating motors

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

310133, 310134, 318244, 318738, 318 34, H02K 2364

Patent

active

042713803

ABSTRACT:
An induction and universal (commutator) motor combination which share a common lamination core and are supplied by a single-phase line. The stator and rotor are provided with multiple poles and phase windings. A winding system for at least one rotor phase winding is common to commutator motor as well as induction motor operation. A lap winding is connected to a commutator, said lap winding having a coil span corresponding approximately to a single pole pitch of the commutator motor stator winding and corresponding as well to an uneven integral multiple of the coil span of the multi-pole induction motor stator winding. The invention finds particular application in regard to drives for automatic washing machines.

REFERENCES:
patent: 1742112 (1929-12-01), Welsch
patent: 3250976 (1966-05-01), McEntire

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