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:
Mar. 16, 2004
Filed:
Jul. 13, 2000
Brian G. McGee, Chillicothe, IL (US);
Caterpillar Inc, Peoria, IL (US);
Abstract
System and method for delivering multiple fuel injections to a cylinder of an engine based upon engine operating conditions, the control system including an electronic controller coupled to an electronically controlled fuel injector and a plurality of sensors for inputting certain signals representative of certain engine operating conditions, the controller being operable to output a fuel injection signal to the fuel injector to deliver a first fuel shot during the intake stroke and, in one embodiment, when the cylinder piston is positioned near top dead center during the intake stroke, a second fuel shot when the cylinder piston is positioned near top dead center during the compression stroke, and a third fuel shot when the cylinder piston is positioned near top dead center during the compression stroke. The first shot fuel quantity is preferably greater than the second shot fuel quantity but preferably less than the third shot fuel quantity.