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:
Nov. 11, 2014
Filed:
Jun. 24, 2011
Applicants:
Hoisan Kim, Dunlap, IL (US);
Mark F. Sommars, Sparland, IL (US);
Inventors:
Hoisan Kim, Dunlap, IL (US);
Mark F. Sommars, Sparland, IL (US);
Assignee:
Caterpillar Inc., Peoria, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M 57/02 (2006.01); F02M 63/00 (2006.01); F02M 47/02 (2006.01);
U.S. Cl.
CPC ...
F02M 47/027 (2013.01); F02M 63/0063 (2013.01); F02M 63/0015 (2013.01);
Abstract
A common rail single fluid injection system includes fuel injectors ramp shaped injection curves at both the front and back ends of an injection event. This is accomplished by including a check speed control device fixed in position within the check control chamber of a fuel injector. The check speed control device controls the speed of a check by restricting fuel flowing into and out of the check control chamber.