| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an exhaust emission control device for efficiently forming an amount of ammonia corresponding to an NOx amount by using solid urea. <P>SOLUTION: An exhaust pipe 2 through which exhaust gas emitted from an diesel engine 1 circulates is provided with an oxidation catalyst 3, an SCR catalyst 4, and an oxidation catalyst 5. The exhaust pipe 2 is provided with a branch pipe 6 with its one end connected thereto on the upstream side of the oxidation catalyst 3 and a branch pipe 7 with its one end connected thereto between the oxidation catalyst 3 and the SCR catalyst 4. Other ends of the branch pipes 6, 7 are connected to a solid urea storage part 8. The solid urea 9 and a plurality of metal antennae 10 which are microwave absorbers are stored to contact with each other in the solid urea storage part 8. The solid urea storage part 8 is connected with a magnetron 13 which is a microwave generating device via a hole 12 partially formed at a side wall of the solid urea storage part 8. <P>COPYRIGHT: (C)2010,JPO&INPIT |
