EXHAUST EMISSION CONTROL DEVICE

An exhaust emission control device has a particulate filter 5 incorporated in an exhaust pipe to capture particulates in exhaust gas 3, a selective reduction catalyst 6 arranged downstream of the particulate filter 5 to selectively react NO x with ammonia even in the presence of oxygen and urea wate...

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Bibliographische Detailangaben
Hauptverfasser:	KOWADA, MINORU, TORISAKA, HISAKI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING 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 TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	An exhaust emission control device has a particulate filter 5 incorporated in an exhaust pipe to capture particulates in exhaust gas 3, a selective reduction catalyst 6 arranged downstream of the particulate filter 5 to selectively react NO x with ammonia even in the presence of oxygen and urea water addition means 12 capable of adding urea water as reducing agent between the catalyst 6 and the filter 5. At least a bent 13, 14 is formed in a passage which guides the exhaust gas 3 from the urea water addition means 12 to the selective reduction catalyst 6.