Synchronous motor with permanent magnets included in a rotor

Details Synchronous motor with permanent magnets included in a rotor Synchronous motor with permanent magnets included in a rotor

1995-07-11

1998-11-17

Dougherty, Thomas M.

Electrical generator or motor structure

Dynamoelectric

Rotary

310261, 310162, H02K 124, H02K 2114

Patent

active

058380868

ABSTRACT:
A synchronous motor including permanent magnets inserted in a rotor, said permanent magnets having azimuth positions within said rotor and having radial magnetization, said rotor co-operating with a stator so as to define an air gap, said rotor and said stator being defined by poles, wherein flux produced by said permanent magnets propagates within the rotor along a first magnetic path F3 situated between said poles, said first magnetic path F3 having a reluctance lying in the range 0.5 times to 10 times the reluctance offered to the flux produced by said permanent magnets and propagating via said air gap.

REFERENCES:
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patent: 4476408 (1984-10-01), Honsinger
patent: 4682067 (1987-07-01), Oudet
patent: 4922152 (1990-05-01), Gleghorn et al.
patent: 5097166 (1992-03-01), Mikulic
patent: 5223759 (1993-06-01), Shimoda et al.
patent: 5650680 (1997-07-01), Chula
Robert C. Weast, Ed., CRC Handbook of Chemistry and Physics; p. E-108, 1983.
John D. Jackson, Classical Electrodynamics, pp. 820 and 821, 1975.

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