| 摘要 |
<P>PROBLEM TO BE SOLVED: To effectively improve the purification ratio of NOx included in the exhaust in regard to an exhaust emission control device for an internal combustion engine. <P>SOLUTION: The exhaust emission control device for an internal combustion engine includes: an exhaust emission control catalyst 30 which is provided in an exhaust passage 14 of the internal combustion engine 10, adsorbs NOx included in the exhaust discharged from the internal combustion engine 10, generates NO<SB POS="POST">2</SB>by oxidizing the adsorbed NOx, and reduces and controls the generated NO<SB POS="POST">2</SB>by using supplied HC; a HC supplying means 34 which supplies HC as a reducing agent to the exhaust emission control catalyst 30; and a control means 40 which controls combustion of the internal combustion engine 10 so that the amount of CO included in the exhaust becomes larger than the amount of NOx. <P>COPYRIGHT: (C)2012,JPO&INPIT |
