Multiple pole axial field electromagnetic devices

Details Multiple pole axial field electromagnetic devices Multiple pole axial field electromagnetic devices

1980-09-15

1983-07-19

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Rotary

H02K 122

Patent

active

043945970

ABSTRACT:
In accordance with the teachings of the present invention, a core element is provided for the rotor or stator of an axial field electromagnetic device such as a motor or generator. The core element of the present invention comprises a cylinder of annular cross section having two annular faces, an axial thickness separating the faces and a plurality of radial slots in one of the faces. In accordance with the present invention, the dimensions of the core element and the slots thereof are sized according to a predetermined relationship. As a result, an electromagnetic device utilizing the core elements of the present invention is more energy efficient, cheaper and lighter relative to electromagnetic devices of the prior art.

REFERENCES:
patent: 1605796 (1926-11-01), Tanzler
patent: 2356972 (1944-08-01), Chubbuck
patent: 2438629 (1948-03-01), Anderson
patent: 2469808 (1949-05-01), Aske
patent: 2550571 (1951-04-01), Litman
patent: 3567978 (1971-03-01), Parker
patent: 3591819 (1971-07-01), Laing
patent: 4187128 (1980-02-01), Billings et al.
patent: 4187441 (1980-02-01), Oney

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