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. 12, 2001
Filed:
Oct. 29, 1999
Applicant:
Inventors:
Katsunori Takahashi, Saitama, JP;
Yoichi Tanaka, Shizuoka, JP;
Assignee:
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02F 7/00 ; F01M 1/300 ;
U.S. Cl.
CPC ...
F02F 7/00 ; F01M 1/300 ;
Abstract
A journal wall of an in-line four cylinder engine is provided with an oilway and bolt fastening sections. A center of a breathing hole punched in the journal wall avoids the oilway and the bolt fastening sections by being offset by a predetermined amount with respect to a center of a breathing hole formed in an adjacent journal wall. In this way, it is possible to make the diameter of the breathing hole sufficiently large to alleviate friction loss in the four cylinder engine without making the oilway complicated or shortening the bolt fastening sections.