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. 13, 2007
Filed:
Jan. 09, 2004
Klaus Binder, Deizisau, DE;
Josef Günther, Affalterbach, DE;
Andreas Hertzberg, Stuttgart, DE;
Brigitte Konrad, Blaustein, DE;
Bernd Krutzsch, Denkendorf, DE;
Heinz-jost Ölschlegel, Notzingen, DE;
Stefan Renfftlen, Eislingen, DE;
Dirk Voigtländer, Korntal-Münchingen, DE;
Michel Weibel, Stuttgart, DE;
Marko Weirich, Mannheim, DE;
Günter Wenninger, Stuttgart, DE;
Rolf Wunsch, Malsch, DE;
Klaus Binder, Deizisau, DE;
Josef Günther, Affalterbach, DE;
Andreas Hertzberg, Stuttgart, DE;
Brigitte Konrad, Blaustein, DE;
Bernd Krutzsch, Denkendorf, DE;
Heinz-Jost Ölschlegel, Notzingen, DE;
Stefan Renfftlen, Eislingen, DE;
Dirk Voigtländer, Korntal-Münchingen, DE;
Michel Weibel, Stuttgart, DE;
Marko Weirich, Mannheim, DE;
Günter Wenninger, Stuttgart, DE;
Rolf Wunsch, Malsch, DE;
DaimlerChrysler AG, Stuttgart, DE;
Abstract
An internal combustion engine includes an exhaust-gas aftertreatment device, and an operating method is for operating the internal combustion engine. The internal combustion engine is operable with a lean mixture and a rich mixture, the internal combustion engine having an exhaust-gas aftertreatment device, which includes a nitrogen oxide storage catalytic converter and a particle filter. When lean exhaust gas flows through the nitrogen oxide storage catalytic converter, it removes nitrogen oxides from the exhaust gas by storing them, and, when reducing exhaust gas flows through the nitrogen oxide storage catalytic converter, it produces ammonia through reduction of stored and/or supplied nitrogen oxides and releases it to the exhaust gas. Downstream from the nitrogen oxide storage catalytic converter, the exhaust-gas aftertreatment device includes a SCR catalytic converter, which reduces nitrogen oxides contained in the exhaust gas, using ammonia produced by the nitrogen oxide storage catalytic converter.