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:
Feb. 22, 2011
Filed:
Aug. 29, 2008
Katsuhiko Takeuchi, Chiryu, JP;
Kouji Ishizuka, Aichi-ken, JP;
Manabu Tsujimura, Anjo, JP;
Denso Corporation, Kariya, JP;
Abstract
A fuel injection system designed to learn the quantity of fuel sprayed actually from a fuel injector into an internal combustion engine. When the engine is placed in a given learning condition, the system works to spray different quantities of the fuel for different injection durations in sequence to the engine through the fuel injector to collect a plurality of data on the quantity of the fuel sprayed actually from the fuel injector. The system analyzes the corrected data to determine an injection characteristic of the fuel injector, which may have changed from a designer-defined basic injection characteristic of the fuel injector, and uses the injection characteristic in calculating an injection duration or on-duration for which the fuel injector is to be opened to spray a target quantity of fuel.