Exhaust gas purifying filter and method of manufacturing the same
    2.
    发明公开
    Exhaust gas purifying filter and method of manufacturing the same 有权
    赫尔斯特朗赫斯特伦

    公开(公告)号:EP1245262A1

    公开(公告)日:2002-10-02

    申请号:EP02007022.3

    申请日:2002-03-27

    申请人: Denso Corporation

    摘要: An exhaust gas purifying filter that does not break and melt and has high capacity to remove particulate matter, and a method of manufacturing the same, are provided.
    The exhaust gas purifying filter 7 is made of a ceramic material in a honeycomb structure comprising introduction passages 2 for introducing exhaust gas that includes particulate matter emitted from an internal combustion engine, porous walls 5 that collect the particulate matter and exhaust passages 3 for exhausting the exhaust gas after the particulate matter has been removed therefrom, with the porous walls supporting a catalyst for oxidizing and removing the particulate matter, wherein the porosity of the porous wall is in a range from 55 to 80%, the mean pore size is in a range from 30 to 50 µm, and the total volume X of the pores included in the exhaust gas purifying filter and the volume Y of the pores that are not smaller than 100 µm satisfy the relation of inequality Y/X ≦ 0.05.

    摘要翻译: 提供一种不会破裂和熔融并且具有高容量去除颗粒物质的废气净化过滤器及其制造方法。 排气净化过滤器7由蜂窝结构体的陶瓷材料构成,其包括用于引入废气的引入通道2,所述排气通道包括从内燃机排出的颗粒物质,收集颗粒物质的多孔壁5和排出通道 颗粒物质已被除去之后的废气,其中多孔壁支撑用于氧化和除去颗粒物质的催化剂,其中多孔壁的孔隙率在55至80%的范围内,平均孔径为 30〜50μm的范围,排气净化用过滤器所包含的孔的总体积X和不小于100μm的孔的体积Y满足不等式Y / X <0.05的关系 。