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. 09, 2010
Filed:
Jan. 29, 2007
Svetlana Mikhailovna Zemskova, Edelstein, IL (US);
Julie Marie Faas, Peoria, IL (US);
Christie Susan Ragle, Havana, IL (US);
Matthew Owen Stefanick, Peoria, IL (US);
Ronald Graham Silver, Peoria, IL (US);
Svetlana Mikhailovna Zemskova, Edelstein, IL (US);
Julie Marie Faas, Peoria, IL (US);
Christie Susan Ragle, Havana, IL (US);
Matthew Owen Stefanick, Peoria, IL (US);
Ronald Graham Silver, Peoria, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
An exhaust emission control system for an internal combustion engine is disclosed. The exhaust emission control system has a first passageway and a second passageway disposed to receive exhaust in parallel. The exhaust emission control system also has a valve arrangement configured to regulate the flow of exhaust to the first and second passageways, and at least one sensor configured to sense a parameter indicative of a constituent of the exhaust. The at least one sensor generates a signal corresponding to the sensed parameter. The exhaust emission control system also has a controller in communication with the valve and the at least one sensor. The controller is configured to affect operation of the valve in response to the signal.