EXHAUST GAS PURIFYING DEVICE OF INTERNAL COMBUSTION ENGINE

摘要

PROBLEM TO BE SOLVED: To provide an exhaust gas purifying device of internal combustion engine with improved purifying efficiency, even in the lean running condition without bringing about deterioration in fuel consumption. SOLUTION: There is provided with an electrochemical catalyst 5 set in the exhaust system of an internal combustion engine 1, the electrochemical catalyst 5 contains an electron conductivity material and ion conductivity material, accelerates the oxidation reaction and reduction reaction with the ion and electron conduction and electrochemically purifies the exhaust gas in the exhaust system G.