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:
Oct. 05, 2004
Filed:
Jul. 22, 2002
Kiyomi Nakakita, Aichi-gun, JP;
Takayuki Fuyuto, Aichi-gun, JP;
Kazuhisa Inagaki, Aichi-gun, JP;
Yoshihiro Hotta, Aichi-gun, JP;
Kazuhiro Akihama, Aichi-gun, JP;
Minaji Inayoshi, Aichi-gun, JP;
Ichiro Sakata, Aichi-ken, JP;
Other;
Abstract
A state of combustion in a combustion chamber is controlled by stratifying an intake gas charge within the combustion chamber, so as to reduce amounts of harmful substances left in exhaust gas. A direct-injection type internal combustion engine in which a fuel is injected into the combustion chamber and which is arranged to stratify the intake gas charge within the combustion chamber ( ) such that intake gases of different compositions exist in a central portion ( ) of the combustion chamber including a position of the fuel injection, and in a peripheral portion of the combustion chamber, upon initiation of combustion of the fuel at a point of time near a terminal period of a compression stroke. The intake gases of different compositions may be intake gases having different concentrations of a specific component such as recirculated exhaust gas and the fuel.