发明名称 |
ENGINE EXHAUST EMISSION CONTROL DEVICE |
摘要 |
<p>It is determined that a reducing agent supply system is clogged, which is arranged on the downstream of a pump carrying out suction and pumping of a liquid reducing agent out of a reducing agent tank, when a reduction in a pressure of the liquid reducing agent remaining in the downstream of the pump and also in the upstream of a flow control valve by an amount equal to or more than a first predetermined pressure does not occur until a cumulative injection amount obtained by sequentially integrating an injection amount of the liquid reducing agent computed in real time based on engine operating conditions reaches a predetermined amount after the pump has been temporarily stopped.</p> |
申请公布号 |
EP2034147(A1) |
申请公布日期 |
2009.03.11 |
申请号 |
EP20070744952 |
申请日期 |
2007.06.08 |
申请人 |
NISSAN DIESEL MOTOR CO., LTD. |
发明人 |
KATOU, TOSHIKAZU;MATSUNAGA, HIDEKI |
分类号 |
F01N11/00;F01N3/20 |
主分类号 |
F01N11/00 |
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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