| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an exhaust emission control device adapted for suppressing deterioration of fuel consumption, and making added fuel react in a post-treatment device from a relatively low temperature zone. <P>SOLUTION: The exhaust emission control device is provided with a pair of NOx storage reducing catalysts 5A and 5B in an exhaust pipe 4 as the post-treatment device requiring addition of fuel, and a fuel adding device 23 for adding fuel into exhaust gas 3 on the upstream sides of the respective NOx storage reducing catalysts 5A and 5B. This device also includes an additive tank 14 independent of a fuel tank 20 for supplying light oil 19 as fuel to a diesel engine 1, and is configured so as to supply kerosene 18 from the additive tank 14 to the fuel adding device 23 through a supply line 15. <P>COPYRIGHT: (C)2007,JPO&INPIT |
