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.

Date of Patent:
Sep. 10, 2013

Filed:

Apr. 29, 2009
Applicants:

Hirofumi Ueda, Wako, JP;

Akira Odajima, Wako, JP;

Inventors:

Hirofumi Ueda, Wako, JP;

Akira Odajima, Wako, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/40 (2006.01); F02D 29/02 (2006.01); F02D 41/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A control system for an internal combustion engine having at least one fuel injection valve for injecting fuel in a combustion chamber of the engine. A main injection and a pilot injection are performed through the at least one fuel injection valve, the pilot injection being performed before the main injection. A demand output of the engine is temporarily reduced upon a request for reducing an output of the engine. The output of the engine is reduced when the demand output is reduced. A control of the pilot injection corresponding to a state where the demand output is not reduced is performed when the demand output is reduced.


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