发明名称 |
Exhaust gas purifier for internal combustion engine |
摘要 |
The exhaust gas purifier includes a fuel addition valve, an NOx catalytic converter, and a catalyst loaded PM filter. The catalyst temperature of catalyst loaded PM filter is increased to a target temperature by adding fuel to the exhaust gas from fuel addition valve, whereby PM trapped on the filter is purified. When the NOx catalytic converter is deteriorated, the target catalyst temperature of catalyst loaded PM filter is changed to a value larger than the target catalyst temperature when the NOx catalytic converter is in a normal state. |
申请公布号 |
US7347043(B2) |
申请公布日期 |
2008.03.25 |
申请号 |
US20060397573 |
申请日期 |
2006.04.05 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
TAHARA JUN;SUGIYAMA TATSUMASA |
分类号 |
F01N3/00;B01D46/42;B01D53/94;F01N3/02;F01N3/023;F01N3/025;F01N3/029;F01N3/035;F01N3/08;F01N3/10;F01N3/20;F01N3/24;F01N3/28;F01N3/36;F01N13/02 |
主分类号 |
F01N3/00 |
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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