发明名称 |
EXHAUST GAS PURIFICATION DEVICE FOR INTERNAL COMBUSTION ENGINE |
摘要 |
An internal combustion engine in an engine exhaust passage of which a hydrocarbon feed valve (15) and an exhaust purification catalyst (13) are arranged. If the hydrocarbon feed valve (15) feeds hydrocarbons by a period of within 5 seconds, a reducing intermediate is produced inside the exhaust purification catalyst (13). This reducing intermediate is used for NO x purification processing. At the time of engine operation, the demanded produced amount of the reducing intermediate required for reducing the NO x is calculated. The amount of production of the reducing intermediate is made to become this demanded produced amount by control of the feed amount and feed period of hydrocarbons. |
申请公布号 |
EP2447488(B1) |
申请公布日期 |
2015.11.25 |
申请号 |
EP20100845964 |
申请日期 |
2010.08.30 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
UMEMOTO, KAZUHIRO;YOSHIDA, KOHEI;INOUE, MIKIO;BISAIJI, YUKI |
分类号 |
F01N3/08;B01D53/94;F01N3/36;F02D41/02 |
主分类号 |
F01N3/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|