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. 18, 2008
Filed:
May. 02, 2005
Applicants:
Yue Yun Wang, Columbus, IN (US);
Jerilyn Tsai, Columbus, IN (US);
Inventors:
Yue Yun Wang, Columbus, IN (US);
Jerilyn Tsai, Columbus, IN (US);
Assignee:
Cummins, Inc., Columbus, IN (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 3/00 (2006.01); F01N 3/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A system is provided for regenerating an exhaust gas aftertreatment component of an internal combustion engine. The system is operable to determine an output torque of the engine, and to supply a single quantity of fuel to the engine after combustion of a main quantity of fuel if the output torque is greater than a torque threshold, and to otherwise supply a first quantity of fuel to the engine near an end of combustion of the main quantity of fuel followed by supplying a second quantity of fuel after combustion of the main quantity of fuel.