发明名称 |
EXHAUST EMISSION PURIFYING DEVICE FOR INTERNAL COMBUSTION ENGINE |
摘要 |
<p>An internal combustion engine in which a main SO x trap catalyst (11) able to trap SO x contained in exhaust gas is arranged in an engine exhaust passage, and the exhaust passage downstream of the main SO x trap catalyst (11) is divided into a main exhaust passage (13) and a bypass passage (14) bypassing the main exhaust passage (13). An NO x storage catalyst (15) is arranged in the main exhaust passage (13), and an auxiliary SO x trap catalyst (16) is arranged in the main exhaust passage (13) upstream of the NO x storage catalyst (15). Normally, the exhaust gas is made to flow in the main exhaust passage (13). When regenerating the main SO x trap catalyst (11), the exhaust gas is made to flow through the bypass passage (14).</p> |
申请公布号 |
EP2113645(B1) |
申请公布日期 |
2014.07.30 |
申请号 |
EP20080711880 |
申请日期 |
2008.02.18 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
TSUJIMOTO, KENICHI;HIROTA, SHINYA |
分类号 |
F01N3/08;B01D53/86;B01D53/94;B01J23/96;B01J38/02;F01N3/02;F01N3/20;F01N3/24;F01N3/28;F02D41/04 |
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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