EXHAUST EMISSION CONTROL DEVICE OF ENGINE

PROBLEM TO BE SOLVED: To increase an exhaust performance in regeneration while securing the regeneration efficiency of a filter. SOLUTION: When a DPF is forcibly regenerated, a fuel is supplied to an oxidation catalyst using a cylinder post injection when an engine is under low load or rotated at lo...

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Bibliographische Detailangaben
Hauptverfasser:	KURATA KAZUO, KOGA TOKUYUKI, TAKEUCHI TOSHIHIRO, NAKAZAWA SATOSHI, HATAKE MICHIHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES 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 HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION STEAM ENGINES SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To increase an exhaust performance in regeneration while securing the regeneration efficiency of a filter. SOLUTION: When a DPF is forcibly regenerated, a fuel is supplied to an oxidation catalyst using a cylinder post injection when an engine is under low load or rotated at low speeds and using only an exhaust pipe fuel adding valve when the engine is under high load and rotated at high speeds. The recirculation of exhaust gas by an EGR device is restricted during the regeneration by the cylinder post injection. COPYRIGHT: (C)2010,JPO&INPIT