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. 15, 2009
Filed:
May. 11, 2006
Applicant:
Yutaka Kitamura, Tokyo, JP;
Inventor:
Yutaka Kitamura, Tokyo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kasiha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 1/22 (2006.01); H02K 1/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
The electric rotating machine includes a rotor and an armature. The rotor consists of a cylindrical part having a field winding and a claw-pole shaped magnetic pole part. A magnetic short-circuit mechanism is disposed between the magnetic pole parts adjacent each other in circumferential direction of a rotor core so as to cause a magnetic plate of a material of high magnetic permeability to move toward radial direction of the rotor core, thereby short-circuiting between N-pole and S-pole of a permanent magnet due to centrifugal force acting in accordance with rotation of the rotor.