- 专利标题： Exhaust gas purifying filter and method of manufacturing the same
- 专利标题（中）： 赫尔斯特朗赫斯特伦
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申请号： EP02011961.6申请日： 2002-05-29
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公开(公告)号： EP1264971A1公开(公告)日： 2002-12-11
- 发明人: Nishimura, Mamoru , Ishihara, Mikio , Ogura, Yoshitsugu
- 申请人： Denso Corporation , TOYOTA JIDOSHA KABUSHIKI KAISHA
- 申请人地址： 1-1, Showa-cho Kariya-city, Aichi-pref., 448-8661 JP
- 专利权人： Denso Corporation,TOYOTA JIDOSHA KABUSHIKI KAISHA
- 当前专利权人： Denso Corporation,TOYOTA JIDOSHA KABUSHIKI KAISHA
- 当前专利权人地址： 1-1, Showa-cho Kariya-city, Aichi-pref., 448-8661 JP
- 代理机构： Leson, Thomas Johannes Alois, Dipl.-Ing.
- 优先权： JP2001162664 20010530
- 主分类号： F01N3/28
- IPC分类号： F01N3/28 ; C04B38/00 ; B01D46/24 ; B01J35/10 ; B01J35/04 ; F01N3/022
摘要：
The present invention provides an exhaust gas purifying filter that has an increased contact area, between a catalyst supported on the dividing walls of a honeycomb structural body and particulate matter deposited thereon, and can improve the capacity of the catalyst to oxidize the particulate matter, and a method of manufacturing the same.
According to the present invention, the exhaust gas purifying filter 1 comprising the honeycomb structural body 10 made of ceramic and the catalyst 2 supported on the surface of the dividing walls 11 of the honeycomb structural body 10 has void ratio, of the dividing wall 11 of the honeycomb structural body 10, in a range from 55 to 80%, and the proportion of surface pores is 20% or higher.
According to the present invention, the exhaust gas purifying filter 1 comprising the honeycomb structural body 10 made of ceramic and the catalyst 2 supported on the surface of the dividing walls 11 of the honeycomb structural body 10 has void ratio, of the dividing wall 11 of the honeycomb structural body 10, in a range from 55 to 80%, and the proportion of surface pores is 20% or higher.
公开/授权文献
- EP1264971B1 Method for manufacturing an exhaust gas purifying filter 公开/授权日：2008-04-02
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