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:
Jun. 23, 2009
Filed:
Apr. 21, 2008
Frank Duvinage, Kirchheim, DE;
Christian Goerigk, Korb, DE;
Arno Nolte, Stuttgart, DE;
Markus Paule, Korb, DE;
Henning Sander, Ludwigsburg, DE;
Frank Duvinage, Kirchheim, DE;
Christian Goerigk, Korb, DE;
Arno Nolte, Stuttgart, DE;
Markus Paule, Korb, DE;
Henning Sander, Ludwigsburg, DE;
Daimler AG, Stuttgart, DE;
Abstract
An exhaust-gas purification unit for purifying the exhaust gas from an internal combustion engine which is preferably operated in lean-burn mode, in particular a diesel engine used in motor vehicles, has a particulate filter and a SCR catalytic converter arranged in the exhaust pipe in succession in the direction of flow, and a reducing-agent supply. Ammonia can be added to the exhaust gas from the internal combustion engine on the entry side of the SCR catalytic converter by the reducing-agent supply. The exhaust-gas purification unit includes a hydrogen-generating unit for enriching the exhaust gas from the internal combustion engine with the hydrogen which it generates.