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. 11, 2003
Filed:
May. 15, 2001
Charles H. Dutart, Washington, IL (US);
Eric C. Fluga, Dunlap, IL (US);
Caterpillar Inc, Peoria, IL (US);
Abstract
An apparatus and method for causing a fuel injector to overcome its inherent fuel injection pressure threshold long enough to completely inject a predetermined volume of fuel during each fuel shot associated with a particular fuel injection event. The fuel injector is in electrical communication with an electronic controller for receiving control signals of pre-calculated timing and duration therefrom. Furthermore, the fuel injector is in mechanical communication with a cam follower. A camshaft has a cam profile in mechanical communication with the cam follower, the cam profile including at least one lobe operable to generate pressure within the fuel injector sufficient to overcome the fuel injection pressure threshold in predetermined intervals in conjunction with the control signal of the electronic controller.