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. 08, 2004
Filed:
Sep. 18, 2002
Matsuharu Abo, Inakadate, JP;
Koji Onishi, Hitachinaka, JP;
Hiroshi Fujii, Tokyo, JP;
Mamoru Fujieda, Tomobe, JP;
Junichi Yamaguchi, Tokai, JP;
Yoshiyuki Tanabe, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A control apparatus for a direct injection engine having an intake valve, an exhaust valve and a fuel injection valve for injecting fuel directly into a cylinder of the engine and in which fuel injection by the fuel injection valve is performed during intake stroke or during compression stroke of the engine, has combustion stabilizing device for stabilizing combustion in the cylinder. The combustion stabilizing device has next operation mode determination device for selecting either an operation mode of recovering the combustion stability by fuel injection during intake stroke or an operation mode of recovering the combustion stability by fuel injection during compression stroke when a deteriorated state of combustion is detected in fuel injection during compression stroke.