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:
Sep. 30, 2014
Filed:
Oct. 17, 2008
Kenji Hiramoto, Owariasahi, JP;
Hideo Nakai, Nisshin, JP;
Eiji Yamada, Owariasahi, JP;
Norimoto Minoshima, Kariya, JP;
Masahiro Seguchi, Obu, JP;
Kenji Hiramoto, Owariasahi, JP;
Hideo Nakai, Nisshin, JP;
Eiji Yamada, Owariasahi, JP;
Norimoto Minoshima, Kariya, JP;
Masahiro Seguchi, Obu, JP;
Kabushiki Kaisha Toyota Chuo Kenkyusho, Aichi, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Kabushiki Kaisha Toyota Jidoshokki, Kariya, JP;
Denso Corporation, Kariya, JP;
Abstract
A plurality of salient poles projecting toward a stator are arranged on a rotor core along the circumferential direction while being spaced apart from each other, and rotor windings are wound around these salient poles. The rotor windings are short-circuited through diodes, respectively; and when currents rectified by the diodes flow through the rotor windings, the salient poles are magnetized to produce a magnet where the magnetic pole is fixed. The width θ of each salient pole in the circumferential direction is smaller than a width corresponding to an electric angle of 180° of the rotor, and the rotor windings are wound around each salient pole by short-pitch winding.