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:
Sep. 07, 2010
Filed:
Jul. 21, 2006
Yuetao Zhang, Columbus, IN (US);
Daniel D. Wilhelm, Nashville, IN (US);
Joseph M. Brault, Columbus, IN (US);
Venkata Lakkireddy, Columbus, IN (US);
James A. Cramer, Columbus, IN (US);
Thomas A. Grana, Columbus, IN (US);
Yuetao Zhang, Columbus, IN (US);
Daniel D. Wilhelm, Nashville, IN (US);
Joseph M. Brault, Columbus, IN (US);
Venkata Lakkireddy, Columbus, IN (US);
James A. Cramer, Columbus, IN (US);
Thomas A. Grana, Columbus, IN (US);
Cummins Filtration, Inc., Nashville, TN (US);
Abstract
A system, method and computer operable code is disclosed for reducing HC and liquid accumulation in an exhaust gas treatment system. A timer is used to monitor the amount of time the system spends in either absorption mode or desorption mode. If the exhaust gas temperature at the inlet of a oxidation catalyst device is below an absorption threshold, the timer is instructed to count up. If the exhaust gas temperature is above a desorption threshold, the timer is instructed to count down. At a predetermined timer threshold value, the engine is instructed to enter a thermal management mode operable to reduce accumulation of HC and liquid in the exhaust gas management system.