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Exhaust gas purification device for an internal combustion engine, and a catalyst loading method of a catalyst is supported on the particulate filter in the exhaust gas purification apparatus
Exhaust gas purification device for an internal combustion engine, and a catalyst loading method of a catalyst is supported on the particulate filter in the exhaust gas purification apparatus
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机译:用于内燃机的排气净化装置和催化剂的催化剂装载方法被支撑在排气净化装置中的颗粒过滤器上。
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摘要
PROBLEM TO BE SOLVED: To remove fine particles collected by a particulate filter completely from the particulate filter.;SOLUTION: The exhaust gas purification apparatus for internal combustion engine is provided with the particulate filter 10 having an exhaust gas flow-in passage 20 and an exhaust gas flow-out passage 21 which are formed by being divided by a partition wall composed of a porous material and constituted so that an exhaust gas flowing-in to the exhaust gas flow-in passage is passed through fine pores 25 of the partition wall 24 and flows-out to the exhaust gas flow-in passage. A 1st catalytic layer 26 having a support composed of a porous material and a catalyst supported on the support is formed on the wall surface of the partition wall and wall surfaces with which the fine pores are formed to be divided. A 2nd catalytic layer 27 having a support which has fine pores each having a larger porosity than that of the partition wall and a larger average fine pore diameter than that of the fine pores of the partition wall and a catalyst supported on the support is formed on the 1st catalytic layer formed on the wall surface of the partition wall with which the exhaust gas flow-in passage is formed to be divided.;COPYRIGHT: (C)2003,JPO
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