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    • 5. 发明授权
    • Filter medium
    • 过滤介质
    • US08449642B2
    • 2013-05-28
    • US12669009
    • 2008-07-04
    • Inge SchildermansFrank VerschaeveJohan VandammeEddy Lambert
    • Inge SchildermansFrank VerschaeveJohan VandammeEddy Lambert
    • B01D39/14B01D24/00B01D39/06B01D50/00
    • F01N3/0226B01D39/06B01D39/2044B01D39/2051B01D2275/10B01D2275/305F01N2330/10Y02T10/20
    • A filter medium (100) having an inflow side (110) and an outflow side (120) defining a flow direction (190). The filter medium comprises at least n consecutive layers Lx of fiber media, x varying from 1 to n, n being more than or equal to 2. L1 (101) is the layer of the n consecutive layers closest to the inflow side of the filter medium and Ln (103) is the layer of the n consecutive layers closest to the -outflow side of the filter medium. For all layers Lx of the at least n consecutive layers, the ratio Hx/(kx*Ax) is substantially identical, wherein Hx is the average thickness of the layer Lx in flow direction, Ax is the average surface area of cross sections according to planes perpendicular to the flow direction, and kx is the permeability coefficient of this layer Lx. The fiber media of at least part of the layers of the filter medium comprises metal fibers.
    • 具有限定流动方向(190)的流入侧(110)和流出侧(120)的过滤介质(100)。 过滤介质至少包括n个连续的纤维介质层Lx,x从1变化到n,n大于或等于2.L1(101)是最靠近过滤器流入侧的n个连续层的层 介质和Ln(103)是最接近过滤介质的流出侧的n个连续层的层。 对于至少n个连续层的所有层Lx,比率Hx /(kx * Ax)基本上相同,其中Hx是流动方向上的层Lx的平均厚度,Ax是横截面的平均表面积,根据 垂直于流动方向的平面,kx是该层Lx的渗透系数。 过滤介质的至少部分层的纤维介质包括金属纤维。