| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an exhaust emission control device of an engine for reducing exhaust resistance, while improving exhaust purification efficiency. <P>SOLUTION: This exhaust emission control device of the engine has a reducing catalyst 4 arranged in an exhaust system of the engine 1 and reducing and cleaning up nitrogen oxides in exhaust gas by a reducing agent, and an injection nozzle 12 for supplying the reducing agent to the exhaust upstream side of the reducing catalyst 4 in an exhaust pipe 2 of the exhaust system; and has a fin 8 arranged on the exhaust upstream side of the injection nozzle 12 by crossing the exhaust pipe 2 and generating a swirling flow to the exhaust gas passing through the exhaust pipe 2 in a central part; and has a partition plate 6 formed in a dotted shape in a peripheral area of the fin 8 and having an exhaust hole for making the exhaust gas flow out and a pipe 2a for constituting a part of the exhaust pipe 2, joined to the partition plate 6 by including the fin 8 inside and forming an exhaust gas introducing hole for introducing the exhaust gas flowing out of the exhaust hole of the partition plate 6 on a side surface in the vicinity of the fin 8. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
