Synchronous electric motor with magnetised rotor and method of manufacturing this motor
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United States of America Patent
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-
Sep 12, 1989
Grant Date -
N/A
app pub date -
Aug 6, 1987
filing date -
Dec 6, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A synchronous electric motor includes least one flat annular rotor part, magnetized so as to present at least one series of magnetic poles arranged along a flat annular zone of the rotor part. The rotor part is fixed by at least one rotor-supporting part on a shaft of the motor. The motor shaft is mounted for rotation with respect to at least one stator assembly which includes at least two stator parts. The stator parts include pole parts arranged so as to form, in their assembly, an air-gap in which are disposed the magnetic poles of the rotor part. At least one electric control coil being coupled with one or more of the pole parts.
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