Exhaust aftertreatment filter with particulate distribution pattern
    5.
    发明公开
    Exhaust aftertreatment filter with particulate distribution pattern 有权
    过滤器Teilchenverteilung zur Nachbehandlung von Abgasen

    公开(公告)号:EP1260683A1

    公开(公告)日:2002-11-27

    申请号:EP02011275.1

    申请日:2002-05-22

    申请人: Fleetguard, Inc.

    IPC分类号: F01N3/022 B01D46/24 C04B38/00

    摘要: An exhaust aftertreatment filter and method is provided for filtering engine exhaust. Varying cell size is provided to spread trapped contaminant particulate along a distribution pattern reducing heat concentration and the risk of melting during regeneration, to minimize hot-spot meltdown otherwise caused by high density concentration of trapped particulate during regeneration. Cell size is varied by varying volume and/or height and/or width and/or length. Tapering of cells is also provided to change the cross-sectional area from the upstream to the downstream end.

    摘要翻译: 排气后处理过滤器和方法用于过滤发动机排气。 提供不同的电池尺寸以沿着分布图案扩散捕获的污染物颗粒,从而降低热量浓度和再生期间熔化的风险,以最大限度地减少由再生期间被捕获的颗粒的高密度浓度引起的热点熔化。 细胞大小通过变化体积和/或高度和/或宽度和/或长度而变化。 还提供细胞的锥形以改变从上游到下游端的横截面积。