发明名称 |
Exhaust system of multi-cylinder internal combustion engine |
摘要 |
A plurality of upstream main exhaust passages extend from cylinders of an engine. A downstream main exhaust passage is connected to the upstream main exhaust passages. A main catalytic converter is mounted in the downstream main exhaust passage. A plurality of upstream bypass exhaust passages extend from the upstream main exhaust passages. Each upstream bypass exhaust passage has a sectional area smaller than that of the corresponding upstream main exhaust passage. A downstream bypass exhaust passage is connected to the upstream bypass exhaust passages and has a downstream end connected to the downstream main exhaust passage at a position upstream of the main catalytic converter. An auxiliary catalytic converter is mounted in the downstream bypass exhaust passage. A gas flow switching device is provided which is capable of forcing the exhaust gas from the cylinders of the engine to flow toward the upstream bypass exhaust passages when assuming a given operation position. |
申请公布号 |
EP1605145(A1) |
申请公布日期 |
2005.12.14 |
申请号 |
EP20050010888 |
申请日期 |
2005.05.19 |
申请人 |
NISSAN MOTOR COMPANY, LIMITED |
发明人 |
I, SUNGI;INOUE, TAKAO;NISHIZAWA, KIMIYOSHI;MITSUISHI, SHUNICHI |
分类号 |
F01N3/20;F01N13/02;F01N13/10;F02F1/24;F02M25/07 |
主分类号 |
F01N3/20 |
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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