EXHAUST GAS PURIFICATION DEVICE FOR DIESEL ENGINE

PURPOSE:To improve regeneration efficiency of a filter trap, prevent damage and meeting of the filter trap, and improve durability thereof by arranging a regenerating burner on an upstream side of the filter trap, and also arranging an exhaust gas backflow cover 13a on the down stream side of the fi...

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Bibliographische Detailangaben
Hauptverfasser:	SHIOI AKIHIRO, SHIMADA MASAKICHI, KOKUBO KAKURO
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS
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Beschreibung
Zusammenfassung:	PURPOSE:To improve regeneration efficiency of a filter trap, prevent damage and meeting of the filter trap, and improve durability thereof by arranging a regenerating burner on an upstream side of the filter trap, and also arranging an exhaust gas backflow cover 13a on the down stream side of the filter trap so as to cover it. CONSTITUTION:During normal operation of an engine, a damper 17 closes a bypass tube 19, and particulates in exhaust gas is captured by a filter trap 13. The exhaust gas having passed through the filter trap 13 flows backward through an inner face of a backflow cover 13a along the filter trap 13. Since an outer peripheral portion of the filter trap 13 is heated, the filter trap 13 is evenly heated. The filter trap is evenly heated in a radial direction at the time of purification of the exhaust gas and regeneration thereof, so that the particulates are combusted substantially perfectly. It is thus possible to improve regeneration efficiency of the filter trap, prevent damage and melting loss of the filter trap, and improve durability thereof.