发明名称 |
DISPOSITIF D'EPURATION DES GAZ D'ECHAPPEMENT POUR MOTEUR A COMBUSTION INTERNE |
摘要 |
The invention concerns a device for purifying an internal combustion engine exhaust gases comprising an internal combustion engine capable of consuming fuel with lean air-fuel mixture ratios, means for adsorbing NOx arranged in the engine exhaust line, said means being of the type which adsorb the NOx present in the exhaust gases in the presence of excess oxygen and which release the adsorbed NOx when the oxygen concentration of the exhaust gases decreases. The invention is characterised in that the NOx adsorbing means do not contain any composition capable of acting as NOx reducing catalyst and in particular no precious metal and a three-way catalyst is installed in the exhaust line downstream of the NOx adsorbing means.
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申请公布号 |
FR2793161(A1) |
申请公布日期 |
2000.11.10 |
申请号 |
FR19990005843 |
申请日期 |
1999.05.07 |
申请人 |
RENAULT |
发明人 |
BERT CHRISTIAN;GUYON MARC;MORAL NAJAT;BOULY CHRISTOPHE;PONTIER THIERRY;SARDA CHRISTIAN;BIRCHEM THIERRY;FRITZ ARNO;HEDOUIN CATHERINE;SEGUELONG THIERRY |
分类号 |
B01D53/94;B01J20/02;B01J20/04;B01J20/06;B01J23/02;B01J23/10;B01J23/34;B01J37/02;C01G25/00;(IPC1-7):B01D53/04;B01J20/08;B01J20/28;B01D53/92;C01F17/00 |
主分类号 |
B01D53/94 |
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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