发明名称 |
Exhaust gas cleaning device for reducing hydrocarbon emissions during cold start of combustion engines. |
摘要 |
The invention relates to an exhaust gas purification system for decreasing the emissions of hydrocarbons during the cold start of internal combustion engines. The exhaust gas purification system contains a hydrocarbon adsorber and a downstream catalyst system which can be composed of a single three-way catalyst or of a combination of oxidation, reduction and/or three-way catalysts in one or more beds. The hydrocarbon emissions during the cold start phase can be significantly decreased by using oxidation catalysts or three-way catalysts which, in comparison with conventional catalysts, have at least twice the loading of platinum and/or palladium.
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申请公布号 |
EP0601314(A1) |
申请公布日期 |
1994.06.15 |
申请号 |
EP19930116921 |
申请日期 |
1993.10.20 |
申请人 |
DEGUSSA AKTIENGESELLSCHAFT |
发明人 |
LINDNER, DIETER, DR.;LOX, EGBERT, DR.;ENGLER, BERND, DR.;OSTGATHE, KLAUS |
分类号 |
B01D53/72;B01D53/02;B01D53/04;B01D53/86;B01D53/94;F01N3/08;F01N3/20;F01N3/24;F01N13/02;F02B1/04;(IPC1-7):B01D53/36 |
主分类号 |
B01D53/72 |
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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