| 发明名称 |
EXHAUST GAS PURIFICATION SYSTEM |
| 摘要 |
An exhaust gas purification system which can suppress a decrease in engine torque during a desulfurization process applied to a NOx storage reduction catalyst. The system includes a NOx storage reduction catalyst in an exhaust pipe of an engine, and a desulfurization process control unit that controls an amount of intake air introduced to the engine to enrich the exhaust gas, and performs a desulfurization process to the NOx storage reduction catalyst. The desulfurization process control unit is configured to gradually reduce an amount of intake air when the desulfurization process is commenced. |
| 申请公布号 |
US2016061077(A1) |
申请公布日期 |
2016.03.03 |
| 申请号 |
US201414781715 |
申请日期 |
2014.03.05 |
| 申请人 |
ISUZU MOTORS LIMITED |
发明人 |
SAKAMOTO Takayuki;NAGAOKA Daiji |
| 分类号 |
F01N3/08;F01N3/10;F02D41/00 |
主分类号 |
F01N3/08 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An exhaust gas purification system comprising:
a NOx storage reduction catalyst disposed in an exhaust pipe of an engine; and a desulfurization process control unit configured to control an amount of intake air introduced to the engine to bring an exhaust gas to a rich condition, and perform a desulfurization process to the NOx storage reduction catalyst, the desulfurization process control unit being configured to gradually reduce the amount of intake air when the desulfurization process is commenced. |
| 地址 |
Tokyo JP |
