发明名称 |
EXHAUST EMISSION CONTROL DEVICE FOR ENGINE |
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 |
申请公布号 |
JP2006070710(A) |
申请公布日期 |
2006.03.16 |
申请号 |
JP20040251470 |
申请日期 |
2004.08.31 |
申请人 |
NISSAN DIESEL MOTOR CO LTD;TOKYO ROKI CO LTD |
发明人 |
HONDA KOTARO;KANETANI ISAMU;AMAMIYA TOMOKO;SHIRAI DAISUKE;HIRAMOTO HITOSHI;YAMADA HISAFUMI |
分类号 |
F01N3/08;B01D53/94;F01N3/24;F01N3/28 |
主分类号 |
F01N3/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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