Two pole permanent magnet rotor construction method

Details Two pole permanent magnet rotor construction method Two pole permanent magnet rotor construction method

1986-12-22

1988-05-03

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

29736, 310 42, 310156, H02K 1502

Patent

active

047410949

ABSTRACT:
A two pole permanent magnet rotor which utilizes a single cylindrical two pole permanent magnet mounted between two end pieces and surrounded by a retaining hoop. The cylindrical two pole permanent magnet, which is made of high energy product material, is "straight through" diametrically magnetized to provide a sinusoidal air gap flux distribution which eliminates losses due to harmonics. The cylindrical two pole permanent magnet may be made of a plurality of smaller magnet blocks which are stacked and machined to form cylindrical configuration.

REFERENCES:
patent: 3513341 (1970-05-01), Gratzmuller
patent: 4433261 (1984-02-01), Nashiki et al.
patent: 4562641 (1986-01-01), Mosher et al.
patent: 4587450 (1986-05-01), Otaki
patent: 4617726 (1986-10-01), Denk

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