Umicore Ag & Co Kg

Manuel Gensch

Martin Foerster

Naina Deibel

Antje Oltersdorf

Jan Schoenhaber

Juergen Koch

Wolfgang Hasselmann

Benjamin Barth

Sascha Zoelle

Jürgen Koch

Wolfgang Hasselman

The invention relates to a wall-flow filter, to a method for the production and the use of the filter for reducing harmful exhaust gases of an internal combustion engine. The wall-flow filter was produced by exposing the filter at least twice successively to a powder-gas aerosol.

Particle filter with a plurality of coatings

The present invention relates to a method for producing a coated wall-flow filter. The wall-flow filter is coated with a powder aerosol.

Method for coating a wall-flow filter

The invention relates to a wall-flow filter as a particle filter with catalytically active coatings in the channels which are closed in a gas-tight manner at the opposing closed ends of the channels A at the first end, wherein the inlet region of the filter is additionally supplied with a dry powder-gas aerosol which contains metal compounds with a high melting point (such as the metal oxides Al2O3, SiO2, FeO2, TiO2, ZnO2, etc. for example) and which is to simultaneously improve the catalytic activity and the degree of filtration efficiency with respect to the exhaust gas back-pressure.

Catalytically active particle filter with a high degree of filtration efficiency

The invention relates to a method for producing a wall-flow filter for removing fine particulate solids from gases, and to the use thereof for cleaning exhaust gases of an internal combustion engine. The invention also relates to a correspondingly produced exhaust-gas filter having a high filtration efficiency.

High-filtration efficiency wall-flow filter

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Aschaffenburg, Germany

Manuel Gensch