INTERIOR PERMANENT MAGNET ELECTRIC ROTATING MACHINE
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United States of America Patent
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N/A
Issued Date -
Apr 3, 2014
app pub date -
Sep 19, 2013
filing date -
Sep 28, 2012
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An electric rotating machine comprises a stator adapted for receiving stator windings; a rotor rotatable relative to the stator; permanent magnets in the rotor forming magnetic poles; and apertures with a low permeability. Each aperture is for that portion of one of the permanent magnets located in a predetermined range which would generate magnetic flux lines in such directions as to cancel magnetic flux lines emanating from the stator in the neighborhood of a direct axis of one of the magnetic poles if the permanent magnet were located in the predetermined range.
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