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:
Feb. 26, 2013
Filed:
May. 04, 2010
Gabriel Salanta, Ann Arbor, MI (US);
Timothy Jackson, Dexter, MI (US);
Henry Sullivan, Northville, MI (US);
Adam J. Kotrba, Laingsburg, MI (US);
Gabriel Salanta, Ann Arbor, MI (US);
Timothy Jackson, Dexter, MI (US);
Henry Sullivan, Northville, MI (US);
Adam J. Kotrba, Laingsburg, MI (US);
Tenneco Automotive Operating Company Inc., Lake Forest, IL (US);
Abstract
An emissions system for reducing nitrogen oxides in engine exhaust includes an emissions catalyst having an inlet adapted to receive an exhaust from the engine. A fuel tank is adapted to provide fuel for combustion within the engine. A first injector is operable to inject fuel into the exhaust upstream of the catalyst. A second injector is operable to inject supplemental reductant from a supplemental reductant tank into the exhaust upstream of the catalyst. A controller is operable to control the first and second injectors and vary the supply of fuel and supplemental reductant into the exhaust to reduce nitrogen oxides within the exhaust.