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.:

US 8771139 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 08, 2014

Filed:

Jun. 18, 2008
Applicants:

Yukihiko Ideshio, Susono, JP;

Hideaki Komada, Gotenba, JP;

Takashi Ohta, Susono, JP;

Inventors:

Yukihiko Ideshio, Susono, JP;

Hideaki Komada, Gotenba, JP;

Takashi Ohta, Susono, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60W 10/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

A power transmission unit, including: an engine; a plurality of speed change gear pairs, each having a different gear ratio, and to which a power outputted from the engine is transmitted; an output member outputting the power transmitted from any of the selected speed change gear pair; a differential mechanism, which has three rotary elements performing a differential action, and in which a first rotary element of the three rotary elements is connected with the engine; and an electric motor, connected with a second rotary element of the three rotary elements. The plurality of speed change gear pairs include a first gear pair connected with the first rotary element and the output member, and a second gear pair connected with a third rotary element of the three rotary elements and the output member.


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