US Patent 9035522 Permanent magnet machine with different pole arc angles
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Patent abstract
An internal permanent magnet machine has multiple rotor sections, each section having multiple rotor laminations. Permanent magnets are placed asymmetrically in lamination openings to attenuate oscillations in torque caused by harmonic components of magnetic flux. Asymmetry is achieved by placing adjacent permanent magnets or magnet sets on the rotor periphery with different rotor magnetic pole arc angles.
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Patent Inventor Names
Feng Liang0
Franco Leonardi0
Michael W. Degner0
Wei Wu0
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US Patent 09035522 Permanent magnet machine with different pole arc angles US Patent 9035522 Permanent magnet machine with different pole arc angles
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Patent Number
09035522
Patent Number
9035522
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US Patent 09035522 Permanent magnet machine with different pole arc angles
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Is a
Patent jurisdiction
Patent number
09035522
Date of patent
May 19, 2015
Patent application number
14010208
Date Filed
August 26, 2013
Patent primary examiner
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