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.

Date of Patent:
Apr. 09, 2013

Filed:

Jun. 19, 2007
Applicants:

Tomoaki Suzuki, Nagoya, JP;

Toshiaki Asada, Mishima, JP;

Makoto Ishikawa, Nishikamo-gun, JP;

Toshimitsu Shiba, Toyota, JP;

Kazuhito Sakai, Makinohara, JP;

Inventors:

Tomoaki Suzuki, Nagoya, JP;

Toshiaki Asada, Mishima, JP;

Makoto Ishikawa, Nishikamo-gun, JP;

Toshimitsu Shiba, Toyota, JP;

Kazuhito Sakai, Makinohara, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02N 11/00 (2006.01); F02N 15/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

A ring gear is formed by joining a race side-region formed body, a gear side-region formed body and an intermediate region formed body. Accordingly, it is possible to perform processing of an inner race portion of the race side-region formed body with none of the gear side-region formed body and the intermediate region formed body present. By causing the gear side-region formed body and the intermediate region formed body to absorb changes in design depending on the type of internal combustion engine, it is possible to standardize the size and the shape of the race side-region formed body for various engine types. Because the inner race portion, as well as a disposition surface and a contact surface for the seal rings are formed on the same race side-region formed body, it is possible to finish the surfaces with precise positional relationship.


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