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:
May. 13, 2008
Filed:
Dec. 05, 2006
Yoshiki Hayakawa, Kuwana, JP;
Yoshiki Hayakawa, Kuwana, JP;
Denso Corporation, Kariya, Aichi-pref., JP;
Abstract
An accumulator fuel injection system working to energize fuel injectors to inject fuel at a sequence of injection timings into an internal combustion engine and also to control a fuel pump to feed the fuel to an accumulator at a sequence of controlled times for compensating for the amount of the fuel flowing out of the accumulator under feedback control. When having found a failure in operation of at least one of the fuel injectors, the system alters a mode of the feedback control to decrease the amount of fuel fed to the accumulator at one of the sequence of the controlled times which is at a selected interval away from one of the sequence of the injection timings at which the at least one of the fuel injectors is to be energized, thereby ensuring a steady balance between the amounts of fuel flowing into and out of the accumulator.