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. 12, 2010
Filed:
May. 13, 2008
Applicant:
Yasuo Hirata, Chita-gun, JP;
Inventor:
Yasuo Hirata, Chita-gun, JP;
Assignee:
Denso Corporation, Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 13/04 (2006.01); F02D 9/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A requested injection time InjT that is necessary for a fuel injector to inject a fuel per one combustion cycle is computed in response to variables of an accelerator manipulated by a driver. An injectable time InjMax per one combustion cycle is computed on the basis of an engine speed, and whether the requested injection time InjT is larger than the injectable time InjMax is determined. Then, when it is positively determined that the requested injection time InjT is larger than the injectable time InjMax, the fuel pump is subjected to load-up operation so as to increase a fuel feed pressure.