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. 24, 2014
Filed:
May. 20, 2011
Applicants:
Daisuke Gunji, Fujisawa, JP;
Yasuyuki Matsuda, Fujisawa, JP;
Gen Kimura, Fujisawa, JP;
Inventors:
Assignee:
NSK Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 3/72 (2006.01); F16H 37/06 (2006.01); B60K 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electric vehicle driving deviceincludes a first motor, a second motor, a first planetary gear mechanism, a second planetary gear mechanism, a clutch device, and a wheel bearing. The first planetary gear mechanismis a planetary gear device of single pinion type. The second planetary gear mechanismis a planetary gear device of double pinion type. The first motoris connected to a first sun gearand a second sun gear. The second motoris connected to a first ring gear. The clutch deviceis connected to a first carrier. A second carrieris connected to the first ring gear. A second ring gearis connected to the wheel bearing