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    Particulate filters and methods of filtering particulate matter
    4.
    发明授权
    Particulate filters and methods of filtering particulate matter 有权
    颗粒过滤器和颗粒物过滤方法

    公开(公告)号：US08444752B2

    公开(公告)日：2013-05-21

    申请号：US12604014

    申请日：2009-10-22

    申请人： Douglas Munroe Beall ,  Achim Karl-Erich Heibel ,  Pushkar Tandon

    发明人： Douglas Munroe Beall ,  Achim Karl-Erich Heibel ,  Pushkar Tandon

    IPC分类号： B01D46/00 ,  B01D50/00 ,  B01D24/00 ,  B01D39/00 ,  B01D39/06 ,  B01D39/14 ,  B01D39/20

    CPC分类号： B01D46/2474 ,  B01D46/2425 ,  B01D46/2451 ,  B01D46/2459 ,  B01D46/2466 ,  B01D46/247 ,  B01D2046/2492 ,  B01D2046/2496

    摘要： A particulate filter may comprise an inlet end, an outlet end, and a plurality of parallel channels disposed and configured to flow fluid from the inlet end to the outlet end, the channels being defined by a plurality of porous walls configured to trap particulate matter. The particulate filter may define at least one filtration region including a first group of channels and at least one bypass region including a second group of channels, wherein at least some of the channels in the first group of channels are plugged at an end thereof, wherein the channels in the second group of channels are unplugged, and wherein greater than or equal to about 70% of the plurality of parallel channels are plugged at an end thereof.

    摘要翻译： 微粒过滤器可以包括入口端，出口端和多个平行的通道，其布置和构造成将流体从入口端流出到出口端，通道被构造成捕获颗粒物质的多个多孔壁限定。 微粒过滤器可以限定至少一个包括第一组通道的过滤区域和至少一个包括第二组通道的旁路区域，其中第一组通道中的至少一些通道在其末端被堵塞，其中 第二组通道中的通道被拔出，并且其中大于或等于大约70％的多个并行通道在其末端被堵塞。

    Partial wall-flow filter and diesel exhaust system and method
    6.
    发明申请
    Partial wall-flow filter and diesel exhaust system and method 审中-公开
    部分壁流式过滤器和柴油机排气系统及方法

    公开(公告)号：US20080120968A1

    公开(公告)日：2008-05-29

    申请号：US11605895

    申请日：2006-11-29

    申请人： Douglas Munroe Beall ,  Achim Karl-Erich Heibel ,  Pushkar Tandon

    发明人： Douglas Munroe Beall ,  Achim Karl-Erich Heibel ,  Pushkar Tandon

    IPC分类号： F01N3/022 ,  F01N3/023

    CPC分类号： F01N3/035 ,  F01N3/021 ,  F01N3/0222 ,  F01N3/0231 ,  F01N3/031 ,  F01N13/009 ,  F01N13/0093 ,  F01N2330/06 ,  F01N2340/04

    摘要： A exhaust system and method for venting exhaust from an engine, such as a diesel engine, through an exhaust line coupled to the engine includes a first particulate filter disposed in the exhaust line and “close-coupled” with the engine, and a second particulate filter spaced a distance (d) from the first filter. The first particulate filter is “close-coupled” so that it operates in a passive regeneration mode to a greater extent than the second particulate filter. The first particulate filter may be a partial wall-flow filter including some plugged and some open channels. Some of the plugged channels may be plugged adjacent to an inlet end and others may be plugged adjacent to an outlet end. A partial wall-flow filter is also described having some unplugged flow-through channels and some plugged channels wherein some plugged channels are located adjacent to the inlet end and some are located adjacent to the outlet end.

    摘要翻译： 排气系统和方法，用于通过与发动机相连的排气管线从诸如柴油发动机的发动机排放废气，其包括设置在排气管中并与发动机“紧耦合”的第一颗粒过滤器和第二颗粒 过滤器与第一个过滤器间隔一段距离（d）。 第一颗粒过滤器是“紧耦合”的，使得其以比第二微粒过滤器更大的程度在被动再生模式下操作。 第一颗粒过滤器可以是包括一些堵塞和一些开放通道的部分壁流过滤器。 一些堵塞的通道可以在入口端附近堵塞，而其它通道可以在出口端附近堵塞。 还描述了部分壁流式过滤器具有一些未堵塞的流通通道和一些堵塞通道，其中一些堵塞的通道邻近入口端定位，一些堵塞通道邻近出口端定位。