发明名称 |
EXHAUST GAS PURIFIER FOR ENGINE |
摘要 |
The present invention is directed to defrost a reducing agent with cooling water of an engine and to prevent water scale from being deposited and accumulated on a cooling water pipe for circulating the cooling water. A frozen reducing agent is defrosted by being heated with cooling water of an engine. A cooling water pipe for guiding the cooling water to a reducing agent tank is provided with a cutoff valve. To defrost the reducing agent, the cutoff valve is opened. Even in the case where the reducing agent is not frozen, the cutoff valve is opened for a predetermined period after start of the cutoff valve to circulate the cooling water in the cooling water pipe. |
申请公布号 |
EP1806487(A4) |
申请公布日期 |
2010.06.30 |
申请号 |
EP20050785681 |
申请日期 |
2005.09.20 |
申请人 |
NISSAN DIESEL MOTOR CO., LTD. |
发明人 |
SATOU, HIROKAZU;NISHINA, MITSUHIRO |
分类号 |
F01N3/08;B01D53/94;F01N3/20;F01N3/28 |
主分类号 |
F01N3/08 |
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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