Diesel engine exhaust emission control system

A diesel engine exhaust emission control system includes, in an exhaust pipe 3 of a diesel engine 2, a first cleaner 4 and a second cleaner 5 installed sequentially from the diesel engine 2 side. The first cleaner 4 includes Pt particles having an average particle size d1 of ≤ 10 nm, CeO2, and a zeo...

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Bibliographische Detailangaben
Hauptverfasser:	KIKUCHI, MASAHIRO, TOKUSHIMA, KIMIHIRO, ONODERA, KOUTA, HOSOGAI, SEIICHI, TERADA, KAZUHIDE
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 MANUFACTURE OR TREATMENT OF NANOSTRUCTURES MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES MECHANICAL ENGINEERING NANOTECHNOLOGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES STEAM ENGINES THEIR RELEVANT APPARATUS TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	A diesel engine exhaust emission control system includes, in an exhaust pipe 3 of a diesel engine 2, a first cleaner 4 and a second cleaner 5 installed sequentially from the diesel engine 2 side. The first cleaner 4 includes Pt particles having an average particle size d1 of ≤ 10 nm, CeO2, and a zeolite. The second cleaner 5 includes Pt particles having an average particle size d2 of ≥ 15 nm, and a zeolite. Thus, it is possible to sufficiently clean up NOx throughout the entire exhaust gas temperature region.