DE3923985

A soot burn-off filter including a monolithic filter block made of porous ceramic with a multiplicity of channels which extend in the direction of flow of the exhaust gases of a combustion engine. The channels are sealed alternately at the ends by plugs and are separated from one another by porous p...

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Bibliographische Detailangaben
Hauptverfasser: TIEFENBACHER, GERD., 7300 ESSLINGEN, DE, LANGER, HANS-JOACHIM., 7148 REMSECK, DE, STROHMER, ERWIN., 7069 BERGLEN, DE, NUNNEMANN, FRIEDHELM., 7057 WINNENDEN, DE, SCHUSTER, HANS-DIETER., 7060 SCHORNDORF, DE
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A soot burn-off filter including a monolithic filter block made of porous ceramic with a multiplicity of channels which extend in the direction of flow of the exhaust gases of a combustion engine. The channels are sealed alternately at the ends by plugs and are separated from one another by porous partition walls. The partition walls are provided with a catalytic coating and have an increased flow resistance in a region at the downstream end of the filter, the partition walls in this region being of gastight design and the catalytic coating of the partition walls ending in a region upstream of the gastight region of the partition walls.