| 摘要 |
PROBLEM TO BE SOLVED: To provide an exhaust emission control device for an internal combustion engine formed that the discharge part and the duct collection part 7 of the exhaust emission control device are separately situated to stabilize discharge at the discharge part and the control efficiency of exhaust gas can be improved. SOLUTION: The discharge part 30 and a dust collection part 70 are situated separately into the upper stream side and the downstream side of a flow passage 6, a distance between electrodes 3 can be arbitrarily set to stabilize discharge. The dust collection part 70 consists of a conductive material 7 having a plurality of gap-form spaces through which exhaust gas passes and is fixed at an earth electric potential. By electrifying PM by the discharge part 30, PM is attracted to the surface of the conductive material 7 for trapping. In purification of a gaseous pollutant (NOx), in the discharge part 30 and the dust collection part 70 carrying a catalyst, radical and active gas generated from the discharge part 30 are brought into contact with exhaust gas for purification. |
