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:
Aug. 03, 2004
Filed:
May. 16, 2003
Chris Stewart, Normal, IL (US);
Scott A. Chockley, Washington, IL (US);
Daniel R. Ibrahim, Bloomington, IL (US);
Keith Lawrence, Peoria, IL (US);
Jay Tomaseki, Gainsville, GA (US);
Junru H. Azam, Normal, IL (US);
Steven Ye Tian, Bloomington, IL (US);
Scott F. Shafer, Morton, IL (US);
Caterpillar Inc, Peoria, IL (US);
Abstract
A fuel injector includes a homogenous charge nozzle outlet set and a conventional nozzle outlet set controlled respectively, by first and second needle valve members. One of the needle valve members moves to an open position while the other needle valve member remains stationary for a homogeneous charge injection event. The former needle valve member stays stationary while the other needle valve member moves to an open position for a conventional injection event. One of the needle valve members is at least partially positioned in the other needle valve member. Thus, the injector can perform homogeneous charge injection events, conventional injection events, or even a mixed mode having both types of injection events in a single engine cycle.