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. 26, 2016
Filed:
Dec. 12, 2014
General Electric Company, Schenectady, NY (US);
James Kristopher von der Ehe, Delafield, WI (US);
Maruthi Narasinga Rao Devarakonda, Waukesha, WI (US);
Dennis John Spaulding, Waukesha, WI (US);
GENERAL ELECTRIC COMPANY, Schenectady, NY (US);
Abstract
A system includes a controller configured to compare a nitrogen oxides (NO) concentration within treated exhaust gases from a combustion engine after flowing through a first catalyst assembly and a second catalyst assembly relative to a NOthreshold value, to determine a change in Oconcentration within the treated exhaust gases between the first and second catalyst assemblies upstream of a location of oxidant injection into the treated exhaust gases, and to adjust an air-fuel ratio of the combustion engine based on the change in Oconcentration in the treated exhaust gases if the NOconcentration is greater than the NOthreshold value.