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:
Sep. 23, 2014
Filed:
Feb. 23, 2012
Applicants:
Stefan Scherer, Stuttgart, DE;
Markus Gloeckle, Stuttgart, DE;
Tobias Pfister, Stuttgart, DE;
Inventors:
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/00 (2006.01); F01N 3/10 (2006.01); F01N 3/20 (2006.01); F01N 11/00 (2006.01); F01N 3/08 (2006.01); F02D 41/02 (2006.01); F01N 13/02 (2010.01);
U.S. Cl.
CPC ...
F01N 3/2066 (2013.01); F01N 3/106 (2013.01); F01N 13/02 (2013.01); F01N 11/00 (2013.01); F01N 3/0842 (2013.01); Y02T 10/47 (2013.01); F01N 2560/14 (2013.01); Y02T 10/24 (2013.01); F01N 2550/02 (2013.01); F02D 41/0275 (2013.01); F01N 2560/026 (2013.01);
Abstract
A method for operating an exhaust system of an internal combustion engine, wherein nitrogen oxide (NO) is reduced by use of a SCR catalytic converter and wherein the ageing state of the SCR catalytic converter is monitored, characterized in that during a temporally limited phase having a high proportion of nitrogen oxide (NO) in the exhaust gas, a conversion of said SCR catalytic converter is acquired and evaluated and the ageing state of said SCR catalytic converter is suggested therefrom.