Electric motor

Details Electric motor Electric motor

2009-03-31

2010-12-28

Le, Dang D (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S012260

Reexamination Certificate

active

07859159

ABSTRACT:
An electric motor having a stator and a mover is disclosed. The stator has excitation coils of three phases, and the mover is movable relative to the stator. The mover has an opposed surface facing the excitation coils. Field poles or protrusions are provided on the opposite surface. The field poles or the protrusions extend helically about the axis of the mover. Each excitation coil extends helically in the same direction as the field pole or the protrusion about the axis of the mover so as to face the field pole or the protrusion.

REFERENCES:
patent: 4123691 (1978-10-01), Seilly
patent: 5715504 (1998-02-01), Sahay
patent: 7176590 (2007-02-01), Fujimoto
patent: 54-149806 (1979-11-01), None
patent: 60-210158 (1985-10-01), None
patent: 07-298596 (1995-11-01), None

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