- 专利标题: Exhaust gas purifying filter and method of manufacturing the same
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申请号: US10156062申请日: 2002-05-29
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公开(公告)号: US06887826B2公开(公告)日: 2005-05-03
- 发明人: Mamoru Nishimura , Mikio Ishihara , Yoshitsugu Ogura
- 申请人: Mamoru Nishimura , Mikio Ishihara , Yoshitsugu Ogura
- 申请人地址: JP Aichi-Pref. JP Aichi-ken
- 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: JP Aichi-Pref. JP Aichi-ken
- 代理机构: Nixon & Vanderhye P.C.
- 优先权: JP2001-162664 20010530
- 主分类号: B01D39/14
- IPC分类号: B01D39/14 ; B01D39/00 ; B01D39/20 ; B01D46/00 ; B01D46/24 ; B01D53/94 ; B01J32/00 ; B01J35/04 ; B01J35/10 ; C04B38/00 ; C04B38/02 ; C04B38/04 ; F01N3/022 ; F01N3/035 ; B01J21/00
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.
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