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:
Jul. 27, 2010
Filed:
Apr. 28, 2006
William L. Easley, Jr., Dunlap, IL (US);
Maarten Verkiel, Metamora, IL (US);
Aaron D. Strauser, Washington, IL (US);
James J. Driscoll, Dunlap, IL (US);
Wade J. Robel, Peoria, IL (US);
William L. Easley, Jr., Dunlap, IL (US);
Maarten Verkiel, Metamora, IL (US);
Aaron D. Strauser, Washington, IL (US);
James J. Driscoll, Dunlap, IL (US);
Wade J. Robel, Peoria, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
An exhaust treatment system is provided. The system may include a particulate trap configured to remove one or more types of particulate matter from an exhaust flow of an engine. The system may also include a catalyst configured to chemically alter at least one component of the exhaust flow. Further, the system may include an exhaust conduit configured to direct the exhaust flow from the engine to the particulate trap and the catalyst. In addition, the exhaust treatment system may include a heating system configured to maintain the temperature of the catalyst above a first predetermined temperature. The heating system may also be configured to periodically raise the temperature of the particulate trap above a higher, second predetermined temperature to thereby effectuate a regeneration of the particulate trap by oxidizing particulate matter accumulated in the particulate trap.