发明名称 |
EXHAUST GAS PURIFICATION DEVICE FOR INTERNAL COMBUSTION ENGINE |
摘要 |
An exhaust gas purification device which purifies exhaust gas in first and second exhaust gas passages (20A 20B) extending from an internal combustion engine is equipped with: a convergence passage (22) extending from the area of convergence of the first and second exhaust gas passages; a first sub NOx catalyst (25A) provided in the first exhaust gas passage; a second sub NOx catalyst (25B) provided in the second exhaust gas passage; a main NOx catalyst (26) provided in the convergence passage; a first addition unit (30A) that adds an ammonia source with a first additive amount upstream from the first sub NOx catalyst so as to supply urea water to the first sub NOx catalyst; and a second addition unit (30B) that adds an ammonia source with a second additive amount upstream from the second sub NOx catalyst so as to supply urea water to the second sub NOx catalyst. |
申请公布号 |
IN4782CHN2014(A) |
申请公布日期 |
2015.09.18 |
申请号 |
IN2014CHENP4782 |
申请日期 |
2014.06.24 |
申请人 |
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI;TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
TOSHIOKA SHUNSUKE;FUKUDA KOICHIRO;NAKAYAMA SHIGEKI |
分类号 |
F01N3/08;B01D53/86;B01D53/94 |
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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