Motor having concentric ring rotor

Details Motor having concentric ring rotor Motor having concentric ring rotor

1980-05-08

1982-11-23

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Rotary

310108, 310163, H02K 4900

Patent

active

043607535

ABSTRACT:
Motor, either synchronous or direct current, including at least one drive coil and including a magnetic rotor having at least two concentric rings of magnetic domains of alternating magnetic poles, with each succeeding rotor ring being of a larger diameter than the previous rotor ring. The drive coil is radially movable so as to be positioned over or adjacent to each of the rotor rings.

REFERENCES:
patent: 1844322 (1932-02-01), Golz
patent: 1946289 (1934-02-01), Lilienthal et al.
patent: 3576455 (1971-04-01), Ingenito
patent: 4224545 (1980-09-01), Powell

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