EXHAUST GAS TREATMENT DEVICE OF INTERNAL COMBUSTION ENGINE

PROBLEM TO BE SOLVED: To revise a discharge plug structure of an exhaust gas treatment device using corona discharge, to revise electric conduction control for recovering insulation performance, to effectively execute the recovery of the insulation performance of a discharge plug, and to improve emi...

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Bibliographische Detailangaben
Hauptverfasser:	UMEMOTO YUKI, SATAKE NOBUYUKI, MATSUI YOSHIHIKO
Format:	Patent
Sprache:	eng
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 MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROMSOLID MATERIALS OR FLUIDS MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS STEAM ENGINES TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To revise a discharge plug structure of an exhaust gas treatment device using corona discharge, to revise electric conduction control for recovering insulation performance, to effectively execute the recovery of the insulation performance of a discharge plug, and to improve emission control performance and energy efficiency.SOLUTION: In an aggregation part 1, the discharge plug 2 is attached to a cylindrical housing H being a grounding electrode, a first annular groove 32 is formed between an insulation insulator 3 and a high-voltage electrode 21, a second annular groove 42 is formed between an attachment metal fitting 4 and the aggregation part, and thus an electric leak is suppressed. An ECU 6 executes discharge control for electrifying and aggregating particular substances in a discharge space by controlling electric conduction to the discharge plug 2 from a high-voltage power supply P, and on the other hand, when the adhesion of PMs is detected, the ECU applies a high voltage at timing at which the oxygen density of the discharge space reaches prescribed density, and executes recovery control for oxidizing and removing the PMs by activating creeping discharge.