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:
Jun. 14, 2011
Filed:
Jun. 10, 2008
Tetsuya Miura, Nishikamo-gun, JP;
Yoshiyuki Hisamatsu, Anjo, JP;
Tetsuya Miura, Nishikamo-gun, JP;
Yoshiyuki Hisamatsu, Anjo, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi-ken, JP;
Abstract
A rotating electric machine includes a stator having a plurality of winding phases formed by distributed winding, a rotor having a plurality of magnetic poles and an outer circumference facing the stator, a first groove formed in the outer circumference of the rotor, a second groove formed in a position opposite to reference magnetic poles closest to the first groove, of the magnetic poles, with respect to the first groove, and a protrusion positioned between the first groove and the second groove and defined by the first and second grooves, and a ratio of a width half the width of the protrusion in a circumferential direction of the rotor to a width of the first groove and the second groove in the circumferential direction of the rotor is not smaller than 0.37 and not greater than 6.