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:
Aug. 26, 2014
Filed:
Apr. 15, 2011
Mirko Arnold, Hannover, DE;
Stephan Siemund, Pattersen, DE;
Attilio Siani, Hannover, DE;
Knut Wassermann, Princeton, NJ (US);
Mirko Arnold, Hannover, DE;
Stephan Siemund, Pattersen, DE;
Attilio Siani, Hannover, DE;
Knut Wassermann, Princeton, NJ (US);
BASF Corporation, Florham Park, NJ (US);
Abstract
Exhaust systems and components are suitable for use with gasoline engines to capture particulates and to reduce gaseous emissions, where three-way conversion (TWC) catalysts located on a particulate filters are provided. Coated particle filters having washcoat loadings in the range of 1 to 4 g/ftresult in minimal impact on back pressure while simultaneously providing TWC catalytic activity and particle trapping functionality to meet increasingly stringent regulations such as Euro 6. Sufficient to high levels of oxygen storage components (OSC) are also delivered on and/or within the filter. The filters can have a coated porosity that is substantially the same as its uncoated porosity. The TWC catalytic material can comprise a particle size distribution such that a first set of particles has a first dparticle size of 7.5 μm or less and a second set of particles has a second dparticle size of more than 7.5 μm.