EXHAUST GAS PURIFICATION DEVICE

An exhaust gas purification device according to the present invention is provided with: a substrate 10 of wall-flow structure having an inlet cell 12, an outlet cell 14 and a porous partition wall 16; an upstream catalyst layer 20 provided inside the partition wall 16 and disposed in an upstream por...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	NOMURA, Yasutaka, INODA, Satoru, MIYOSHI, Naoto, TAKEUCHI, Masahiko, SATO, Akemi, KURIYAMA, Junji
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:	An exhaust gas purification device according to the present invention is provided with: a substrate 10 of wall-flow structure having an inlet cell 12, an outlet cell 14 and a porous partition wall 16; an upstream catalyst layer 20 provided inside the partition wall 16 and disposed in an upstream portion, including an exhaust gas inflow end section, of the substrate 10; and a downstream catalyst layer 30 provided inside the partition wall 16 and disposed in a downstream portion, including an exhaust gas outflow end section, of the substrate 10. The downstream catalyst layer 30 contains a carrier, and Rh supported on the carrier. The upstream catalyst layer 20 contains a carrier, and Pd and/or Pt supported on the carrier.