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:
Oct. 03, 2006

Filed:

Dec. 19, 2005
Applicants:

Toru Oshita, Saitama, JP;

Toru Kisaichi, Saitama, JP;

Inventors:

Toru Oshita, Saitama, JP;

Toru Kisaichi, Saitama, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01L 1/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

A chain tensioner is in sliding contact with each cam chains in a pair of banks and each of cylinder heads of the pair of banks includes a tensioner lifter that abuts on a corresponding one of the two chain tensioners from a side opposite to the cam chains. Of the two tensioner lifters, a first tensioner lifter is disposed on a cylinder head of a first bank at a portion corresponding to an outside of two banks. A second tensioner lifter is disposed on a cylinder head of a second bank at a portion corresponding to an inside of the two banks. A distance between an upper end connection surface of the cylinder head of the first bank and the tensioner lifter is set to be smaller than a distance between an upper end connection surface of the cylinder head of the second bank and the other tensioner lifter.


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