Rotary electric machine with reduced torque ripple
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United States of America Patent
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Apr 6, 2010
Grant Date -
Jun 7, 2007
app pub date -
Nov 8, 2006
filing date -
Dec 2, 2005
priority date (Note) -
Expired
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Abstract
The present invention relates to a rotary electric machine comprising: a concentrated winding stator having teeth and coils placed on the teeth, the teeth having end faces that are convex towards the rotor; and a rotor comprising an armature defining a cylindrical surface and permanent magnets, the permanent magnets having inside faces that are cylinder portions matching the shape of the cylindrical surface of the armature, and outside faces that are plane and that face towards the stator.
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