发明名称 |
ABGASREINIGER FÜR VERBRENNUNGSMOTOR |
摘要 |
In an internal combustion engine, a first exhaust passage (22a) and second exhaust passage (22b) branched from an exhaust passage (21) are provided. An NOx storing reduction catalyst (23a, 23b) and a particulate filter (24a, 24b) are arranged in each exhaust passage (22a, 22b). For example, when NOx should be released from the NOx storing reduction catalyst (23a) in the first exhaust passage (22a), fuel is added from a fuel addition valve (32) in the state with exhaust gas allowed to flow into only the first exhaust passage (22a), while when the added fuel sticks to the NOx storing reduction catalyst (23a), the first exhaust control valve (26a) is temporarily closed and the exhaust gas is made a rich air-fuel ratio. |
申请公布号 |
DE602006021561(D1) |
申请公布日期 |
2011.06.09 |
申请号 |
DE20066021561T |
申请日期 |
2006.04.28 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
KAMOSHITA, SHINJI;ITABASHI, SHIGERU;NIIMI, KUNIAKI;ODA, TOMIHISA;HIROTA, SHINYA |
分类号 |
F01N3/08;B01D53/94;B01J23/58;F02D9/04 |
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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