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:
Apr. 27, 2004
Filed:
Oct. 03, 2002
Takanori Ueda, Susono, JP;
Takeshi Okumura, Susono, JP;
Shigeo Furuno, Fuji, JP;
Satoshi Iguchi, Mishima, JP;
Kazuhiro Akihama, Aichi, JP;
Masahiro Taki, Aichi, JP;
Satoshi Yamazaki, Aichi, JP;
Other;
Abstract
A fuel injector ( ) and spark plug ( ) are arranged in a combustion chamber ( ) of an internal combustion engine. By forming by stratification a self-ignitable preliminary air-fuel mixture in the combustion chamber ( ), a spatial distribution is given to the density of the preliminary air-fuel mixture in the combustion chamber ( ). Part of the preliminary air-fuel mixture formed in the combustion chamber ( ) is ignited by the spark plug ( ) to cause combustion by flame propagation, then the remaining preliminary air-fuel mixture is successively made to self-ignite and burn with a time lag. The ignition timing is set so that the ratio of the preliminary air-fuel mixture made to burn by self-ignition becomes more than a predetermined lower limit and less than a knocking generation limit.