PARTICULATE FILTER
    10.
    发明申请
    PARTICULATE FILTER 有权
    颗粒过滤器

    公开(公告)号:US20090241495A1

    公开(公告)日:2009-10-01

    申请号:US12396117

    申请日:2009-03-02

    IPC分类号: B01D39/14 B01D39/20

    摘要: Disclosed is a particulate filter 10, which comprises a filter body 8 including a plurality of filter segments F1, F2 joined to each other by a joining material 7, wherein each of the filter segments includes a plurality of inflow cells each having a closed end on a downstream side in an exhaust-gas flow direction, and a plurality of outflow cells each having a closed end on an upstream side in the exhaust-gas flow direction. The filter segments include a first filter segment located in a central region of the particulate filter and designed to form each of the inflow cells to have an opening area approximately equal to that of each of the outflow cells, and a second filer segment located in at least a part of an outer peripheral region of the particulate filter and designed to form each of the inflow cells to have an opening area greater than that of each of the outflow cells. The present invention can keep the central region of the particulate filter from becoming overheated during a particulate-filter regeneration process, while suppressing a pressure loss.

    摘要翻译: 公开了一种微粒过滤器10,其包括过滤体8,其包括通过接合材料7彼此连接的多个过滤器段F1,F2,其中每个过滤段包括多个流入单元,每个流入单元各自具有封闭端 排气流动方向的下游侧,以及在排气流动方向的上游侧具有封闭端的多个流出电池。 过滤器段包括位于颗粒过滤器的中心区域中的第一过滤器段,并被设计成形成每个流入单元以具有与每个流出单元的开口面积大致相等的开口面积,以及位于 所述颗粒过滤器的外周区域的至少一部分被设计成形成每个所述流入单元以具有大于每个所述流出单元的开口面积。 本发明可以在颗粒过滤器再生过程中保持颗粒过滤器的中心区域变得过热,同时抑制压力损失。