Synchronous electric machine

Details Synchronous electric machine Synchronous electric machine

2006-09-19

2006-09-19

Nguyen, Tran (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S156530, C310S156560

Reexamination Certificate

active

07109624

ABSTRACT:
A synchronous electric machine includes a stator and a rotor. The stator is provided with teeth, which are wound around to establish electromagnetic fields. The rotor is provided with permanent magnets to generate magnetic fields, so that the rotor can rotate by interaction of the magnetic fields of the windings and the permanent magnets of the magnets. At least one pair of the permanent magnets is dislocated by a predetermined angle from positions where the permanent magnets is arranged at even pitch, and the predetermined angle being set to reduce electromagnetic excitation force acting on said teeth.

REFERENCES:
patent: 5811904 (1998-09-01), Tajima et al.
patent: 5818139 (1998-10-01), Yamagiwa et al.
patent: 6008559 (1999-12-01), Asano et al.
patent: 6133662 (2000-10-01), Matsunobu et al.
patent: 2003/0193253 (2003-10-01), Arimitsu et al.
patent: 2001-0359266 (2001-12-01), None

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