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:
Jul. 01, 2014
Filed:
Mar. 26, 2012
Masanao Kagami, Kariya, JP;
Ryo Umeyama, Kariya, JP;
Yoshiyuki Nakane, Kariya, JP;
Kabushiki Kaisha Toyota Jidoshokki, Aichi, JP;
Abstract
An accommodating recess (A,B) has a magnet accommodating portion (A,B) for accommodating a permanent magnet (A,B) and a cavity (A,B), which is located at the q-axis side of the magnet accommodating portion. The cavity opens through a rotor outer circumferential surface (). A starting point (PaPb) of an outer cavity forming surface (A,B) is located on the rotor outer circumferential surface. The outer cavity forming surface intersects either a magnetic pole surface or an imaginary extended plane (A,B) of a magnetic pole facing surface (A,B). The rotor outer circumferential surface () includes portions of an imaginary annular line (E). A starting point (PaPb) of the outer cavity forming surface (A,B) is located between the d-axis and an intersection point (Qa, Qb) between the imaginary annular line and the imaginary extended plan of the magnetic pole facing surface.