发明名称 |
METHODS OF CONTROLLING REDUCTANT ADDITION |
摘要 |
<p>An exhaust system for a vehicular lean-burn internal combustion engine includes a NOx reduction catalyst, a source reductant, means (20) for contacting the catalyst with the reductant, means for sensing the temperature of the exhaust gas and/or the catalyst bed and means, when in use, for controlling reductant addition. The reductant addition control means supplies an amount of reductant to the catalyst at a rate corresponding to a measured temperature value of the exhaust gas and/or catalyst bed, which temperature value has been pre-determined to correlate, in use, with an amount of NOx in the exhaust gas.</p> |
申请公布号 |
EP1633959(B1) |
申请公布日期 |
2007.05.09 |
申请号 |
EP20040742996 |
申请日期 |
2004.06.18 |
申请人 |
JOHNSON MATTHEY PUBLIC LIMITED COMPANY |
发明人 |
ALLANSSON, EIVE, TORD, RONNY;ANDREASSON, ANDERS, KLAS;GOERSMANN, CLAUS, FRIEDRICH;LAVENIUS, MATS;TWIGG, MARTYN, VINCENT;WALKER, ANDREW, PETER |
分类号 |
F01N3/02;B01D53/90;B01D53/94;F01N3/023;F01N3/035;F01N3/08;F01N3/20;F01N9/00;F01N11/00;F01N13/02;F01N13/04;F02D41/14 |
主分类号 |
F01N3/02 |
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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