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. 02, 2013
Filed:
Aug. 20, 2010
Stephan Eckhoff, Alzenau, DE;
Wilfried Mueller, Karben, DE;
Joerg-michael Richter, Frankfurt a. M., DE;
Stefan Franoschek, Nettetal, DE;
Martin Votsmeier, Luetzelsachen Stadt Weinheim, DE;
Stephan Eckhoff, Alzenau, DE;
Wilfried Mueller, Karben, DE;
Joerg-Michael Richter, Frankfurt a. M., DE;
Stefan Franoschek, Nettetal, DE;
Martin Votsmeier, Luetzelsachen Stadt Weinheim, DE;
Umicore AG & Co. KG, Hanau-Wolfgang, DE;
Abstract
The present invention relates to an exhaust-gas aftertreatment system which comprises a preferably catalytically active particle filter (wall-flow filter) which is followed in turn by a throughflow monolith (flow-through monolith) which is preferably provided with a catalytically active function. Both components have the same storage functions for gaseous substances present in the exhaust gas of internal combustion engines. The system is suitable in particular for the simultaneous removal of particles and pollutants from the exhaust gas of both predominantly lean-operated internal combustion engines and also of internal combustion engines operated predominantly with a stoichiometric air/fuel mixture. Likewise described is a process for the production and the use of such a system for exhaust-gas aftertreatment.