- 专利标题: Method of operating a system comprising a diesel engine and catalyst for exhaust gas purification
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申请号: US10558142申请日: 2004-05-18
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公开(公告)号: US20070006570A1公开(公告)日: 2007-01-11
- 发明人: Jurgen Gieshoff , Martin Votsmeir , Stephan Malmberg , Egbert Lox , Thomas Kreuzer
- 申请人: Jurgen Gieshoff , Martin Votsmeir , Stephan Malmberg , Egbert Lox , Thomas Kreuzer
- 申请人地址: DE 63457 Hanau-Wolfgang
- 专利权人: UMICORE AG & CO. KG
- 当前专利权人: UMICORE AG & CO. KG
- 当前专利权人地址: DE 63457 Hanau-Wolfgang
- 优先权: DE103232478 20030522
- 国际申请: PCT/EP04/05360 WO 20040518
- 主分类号: F01N3/00
- IPC分类号: F01N3/00 ; F01N7/00
摘要:
The invention relates to a method and an apparatus of operating a drive system comprising an engine and an exhaust gas purification unit containing a catalyst, where the engine emits an exhaust gas having an exhaust gas temperature and the catalyst has a catalytic activity for the purification of the exhaust gas. In the method, an aging-induced decrease in the catalytic activity of the catalyst is compensated at least part of the time by increasing the exhaust gas temperature of the engine.