Dual section exhaust aftertreatment filter and method
    2.
    发明授权
    Dual section exhaust aftertreatment filter and method 有权
    双段排气后处理过滤器及方法

    公开(公告)号:US06776814B2

    公开(公告)日:2004-08-17

    申请号:US09851300

    申请日:2001-05-08

    IPC分类号: B01D2952

    摘要: An exhaust aftertreatment filter (100) is provided for internal combustion engine exhaust, and includes an axially extending cylindrical filter roll (106) having pleated filter media (110) defining a plurality of axially extending flow channels (130), and having a first open-flow section (142) with open flow channels (140), and a second filtering section (148) with alternately sealed flow channels (136, 138) forcing exhaust to flow through (158) the pleated filter media (110). A core section (142) aides filter regeneration by providing an exothermic reaction. A combination catalytic converter and filter includes a first catalytic section (142) treated with a catalyst, and a second filter section (148) with alternately sealed flow channels (136, 138).

    摘要翻译: 提供了用于内燃机排气的排气后处理过滤器(100),并且包括具有限定多个轴向延伸的流动通道(130)的褶状过滤介质(110)的轴向延伸的圆柱形过滤辊(106),并且具有第一开口 具有开放流动通道(140)的流动部分(142)和具有交替密封的流动通道(136,138)的第二过滤部分(148),迫使排气流过(158)打褶的过滤介质(110)。 核心部分(142)通过提供放热反应来过滤再生。 组合催化转化器和过滤器包括用催化剂处理的第一催化部分(142)和具有交替密封的流动通道(136,138)的第二过滤部分(148)。