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:
Feb. 27, 2018
Filed:
Mar. 28, 2016
Toyota Jidosha Kabushiki Kaisha, Toyota-shi Aichi-ken, JP;
Eiji Yamada, Owariasahi, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Abstract
A magnet-free rotating electric machine provided with an annular rotor between an outer and inner stators. The annular rotor includes pairs of inner and outer salient poles along a circumferential direction of an annular rotor yoke portion. Each rotor coil is diagonally wound between an inner circumferential surface of the rotor yoke portion on a first side and an outer circumferential surface of the rotor yoke portion on a second side with the pair of inner and outer salient poles sandwiched therebetween. A rectifying device ensures that the magnetic polarities of the inner and outer salient poles magnetized by the current of the rotor coil induced by the excitation of the outer stator and the inner stator are opposite to each other and further that the NS magnetic pole directions of the adjacent pairs of inner and outer salient poles are opposite to each other.