Switched reluctance motor

Details Switched reluctance motor Switched reluctance motor

1995-11-29

1998-05-05

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 51, 310168, 310264, H02K 1910, H02K 122

Patent

active

057479127

ABSTRACT:
A switched reluctance motor has a rotor disposed in an annular stator and formed mainly of a stack of iron plates. The rotor has pole protrusions that face the stator. The pole protrusions have weak magnetic portions provided therein. Each weak magnetic portion has a shape elongated from a leading outer point to a tailing inner point, or a shape that has a base side extending a leading outer point to a tailing inner point and that extends from the base side in the rotational direction and in the inward radial direction. The weak magnetic portions are formed of a material that has a weaker magnetism than the materials forming the other portions of the rotor.

REFERENCES:
patent: 2338525 (1944-12-01), Mason
patent: 2449506 (1948-09-01), Pollard
patent: 3956678 (1976-05-01), Byrne et al.
patent: 4496887 (1985-01-01), Ichihara et al.
patent: 4499407 (1985-02-01), MacLeod
patent: 4583015 (1986-04-01), Toshimitsu
patent: 4698537 (1987-10-01), Byrne et al.
patent: 5250867 (1993-10-01), Gizaw
patent: 5428257 (1995-06-01), Lurkens

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