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:
May. 19, 2009
Filed:
May. 18, 2005
Yue Yun Wang, Columbus, IN (US);
Wole C. Akinyemi, Columbus, IN (US);
Yue Yun Wang, Columbus, IN (US);
Wole C. Akinyemi, Columbus, IN (US);
Cummins Inc., Columbus, IN (US);
Abstract
A system and method for controlling soot regeneration in a catalyst soot filter ('CSF') of an exhaust system for a diesel engine by measuring the inlet temperature of a diesel oxidation catalyst ('DOC') coupled to the CSF, determining a target light off temperature for the DOC, injecting a first fuel amount into a cylinder of the engine to cause the DOC inlet temperature to approach the target light off temperature, measuring the CSF inlet temperature and pressure across the CSF, determining a target CSF inlet temperature for regeneration, injecting a second fuel amount for combustion in the DOC to cause the CSF inlet temperature to approach the target CSF inlet temperature.