FILTER

[Problem] To provide a filter capable of ensuring processing efficiency by a catalyst without any loss in performance relating to PM trapping efficiency. [Solution] The present invention provides a filter comprising a substrate and a catalytic substance provided within the substrate, wherein the sub...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	SUMIYA, Satoshi
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION STEAM ENGINES THEIR RELEVANT APPARATUS TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	[Problem] To provide a filter capable of ensuring processing efficiency by a catalyst without any loss in performance relating to PM trapping efficiency. [Solution] The present invention provides a filter comprising a substrate and a catalytic substance provided within the substrate, wherein the substrate comprises a plurality of cells forming gas flow paths and having a gas inflow-side end portion and an outflow-side end portion, and a plurality of porous partition walls defining the cells, the end portions of at least some of the cells being closed off, and the void occupancy of the catalytic substance within the pores of the partition walls is 10% or less.