The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 07, 2013
Filed:
Jan. 11, 2010
Applicants:
Feng Liang, Troy, MI (US);
Michael W. Degner, Novi, MI (US);
Alfredo R. Munoz, Ann Arbor, MI (US);
Wen Ouyang, Ann Arbor, MI (US);
Inventors:
Feng Liang, Troy, MI (US);
Michael W. Degner, Novi, MI (US);
Alfredo R. Munoz, Ann Arbor, MI (US);
Wen Ouyang, Ann Arbor, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02K 1/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electric machine having a stator surrounding a rotor with an air gap therebetween. The stator has slots in its inner margin for accommodating stator coil windings. Stator teeth defined by the slots have irregular shapes to modify a variable flux flow pattern in the air gap to reduce harmonic torque components with minimal effect on an average value of rotor torque.