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. 19, 2013
Filed:
Mar. 30, 2010
Kevin Dean Sisken, Saline, MI (US);
Yi Liu, Northville, MI (US);
Kevin Dean Sisken, Saline, MI (US);
Yi Liu, Northville, MI (US);
Detroit Diesel Corporation, Detroit, MI (US);
Abstract
Method and apparatus for evaluating an ammonia conversion efficiency of an ammonia oxidation (AMOX) catalyst for reducing ammonia and hydrocarbons present in an exhaust gas stream. The AMOX associated with an exhaust gas after-treatment system has a selective catalytic reduction (SCR) catalyst for reducing nitrogen oxides (NO) present in the exhaust gas stream and a dosing system for introducing a reductant into the exhaust gas stream for reacting with the nitrogen oxides in the presence of the SCR catalyst. The AMOX catalyst is arranged downstream of the SCR catalyst.