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:
Sep. 20, 2005
Filed:
Jan. 14, 2005
Applicant:
Kanjo Arimatsu, Atsugi, JP;
Inventor:
Kanjo Arimatsu, Atsugi, JP;
Assignee:
Nissan Motor Co., Ltd., Yokohama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02F007/00 ;
U.S. Cl.
CPC ...
Abstract
A combustion chamber structure for an internal combustion engine is configured with a combustion chamber surface that has a recess disposed around at least a pair of intake openings. The recess defines a pair of intake opening formation surfaces surrounding the intake opening with a pair of steps formed between the combustion chamber surface and the intake opening formation surfaces. A connecting surface interconnects the intake opening formation surfaces. The connecting surface is also recessed from the combustion chamber surface to form a step therebetween and a communication space being formed between the intake openings.