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    • 9. 发明申请
    • FILTRATION MEDIA PACK, FILTER ELEMENTS, AND METHODS
    • 过滤介质包,过滤元件和方法
    • WO2009003119A9
    • 2008-12-31
    • PCT/US2008/068394
    • 2008-06-26
    • DONALDSON COMPANY, INC.ROCKLITZ, Gary, J.OUYANG, MingMATHEW, Anitha, M.ROGERS, Robert, MADAMEK, Daniel, E.
    • ROCKLITZ, Gary, J.OUYANG, MingMATHEW, Anitha, M.ROGERS, Robert, MADAMEK, Daniel, E.
    • B01D46/52
    • A filtration media pack is provided having a plurality of layers of single facer media. The layer of single facer media includes a fluted sheet, a facing sheet, and a plurality of flutes extending between the fluted sheet and the facing sheet and having a flute length extending from a first face of the filtration media pack to a second face of the filtration media pack. A first portion of the plurality of flutes are closed to unfiltered fluid flowing into the first portion of the plurality of flutes, and a second portion of the plurality of flutes are closed to unfiltered fluid flowing out of the second portion of the plurality of flutes so that fluid passing into one of the first face and the second face of the media pack and out the other of the first face and the second face of the media pack passes through media to provide filtration of the fluid. The filtration media pack can be provided with increased filtration media compared with commonly used z-media packs. Techniques for increasing the amount of filtration media available for filtration include increasing the flute density, reducing masking, adjusting flute width height ratio, increasing flute density, adjusting flute shape, and reducing plug length. Techniques for increasing performance while reducing initial pressure drop are also provided. A filter element containing the filtration media pack is provided, and the filter element includes a seal member extending around a periphery of the filtration media pack. A method for manufacturing a filtration media pack and a method for using a filtration media pack are provided.
    • 提供了具有多层单面介质的过滤介质包。 单面介质层包括凹槽片,面层片和在凹槽片和面层片之间延伸的多个凹槽,并且凹槽长度从过滤介质包的第一面延伸到第二面 过滤介质包。 所述多个凹槽的第一部分对流入所述多个凹槽的第一部分的未过滤流体是闭合的,并且所述多个凹槽的第二部分对从所述多个凹槽的第二部分流出的未过滤流体是闭合的 流入介质包的第一面和第二面中的一个并流出介质包的第一面和第二面中的另一个的流体通过介质以提供流体的过滤。 与常用的z-介质包相比,过滤介质包可以提供增加的过滤介质。 用于增加可用于过滤的过滤介质的量的技术包括增加槽纹密度,减少掩蔽,调整槽纹宽度高度比率,增加槽纹密度,调整槽纹形状以及减少插塞长度。 还提供了在降低初始压降的同时提高性能的技术。 提供包含过滤介质包的过滤元件,并且过滤元件包括围绕过滤介质包的周边延伸的密封构件。 提供了一种制造过滤介质包的方法和一种使用过滤介质包的方法。