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:
Nov. 22, 2011
Filed:
Mar. 14, 2006
Marc Chaineux, Stuttgart, DE;
Bernd Christner, Huelben, DE;
Nicholas Fekete, Stuttgart, DE;
Berthold Keppeler, Owen, DE;
Markus Paule, Korb, DE;
Marc Chaineux, Stuttgart, DE;
Bernd Christner, Huelben, DE;
Nicholas Fekete, Stuttgart, DE;
Berthold Keppeler, Owen, DE;
Markus Paule, Korb, DE;
Daimler AG, Stuttgart, DE;
Abstract
In a device and a method for removing nitrogen oxides from the exhaust of an internal combustion engine which is operated predominantly with an excess of air, the internal combustion engine is assigned an exhaust system having a nitrogen oxide reduction catalytic converter which comprises two catalytic converter parts, whose reducing agent filling levels can be determined. Metering of a reducing-agent-containing additive into the exhaust gas of the internal combustion engine takes place as a function of the reducing agent filling level of the first catalytic converter part and/or of the second catalytic converter part.