| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an exhaust emission control method and an exhaust emission control system usable even in small-sized cars, capable of efficiently promoting the vaporization and diffusion of a depurative at a short distance in an exhaust pipe, and enabling the depurative to reach an exhaust emission control device in a uniformized state. <P>SOLUTION: In this exhaust emission control method, the depurative F consumed in the exhaust emission control device 10 disposed in the exhaust passage 4 of an internal combustion engine E is supplied into the exhaust passage 4 on the upstream side more than the exhaust emission control device 10 by an exhaust pipe inside injection device 13 and mixed with exhaust gases G. A shielding member 14 is installed in the exhaust passage 4. The depurative F is jetted to the downstream side of the shielding member 14 to promote the pulverization of the depurative F. <P>COPYRIGHT: (C)2008,JPO&INPIT |
