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    • 8. 发明申请
    • MULTI-STAGE FLUID FILTER ASSEMBLY WITH FILTRATION MEMBRANE
    • 带过滤膜的多级流体过滤器组件
    • US20140131264A1
    • 2014-05-15
    • US13674289
    • 2012-11-12
    • WHIRLPOOL CORPORATION
    • GINGER ELAYNE PATERAMARK M. SENNINGER
    • C02F1/44C02F9/00B01D36/02
    • C02F1/444B01D36/02C02F1/003C02F9/00C02F9/005C02F2101/20C02F2201/003C02F2201/006C02F2303/14C02F2307/10
    • A multi-stage, coaxially configured, fluid filter assembly includes a first filter stage, a second filter stage, and a porous filtration membrane. The first filter stage has a coarse medium spaced in a volume between an outer surface and an inner surface thereof, such that fluid may come into operative contact with the coarse medium to remove first stage materials from the fluid. The second filter stage is coaxially spaced within the first stage and is configured to receive fluid from the first filter stage. A moderate medium in the second filter stage is configured to remove second stage materials from the fluid. The porous filtration membrane is engaged with the inside surface of the second filter stage and has fine pores for filtering small particles from the fluid. The first and second stage materials are suspended away from the filtration membrane to filter the small particles.
    • 多级同轴配置的流体过滤器组件包括第一过滤器阶段,第二过滤器阶段和多孔过滤膜。 第一过滤台具有在外表面和内表面之间以体积分隔的粗介质,使得流体可以与粗介质操作接触以从流体中移除第一级材料。 所述第二过滤器级在所述第一级中同轴间隔开并且构造成从所述第一过滤级接收流体。 第二过滤器阶段中的中等介质构造成从流体中除去第二阶段材料。 多孔过滤膜与第二过滤器台的内表面接合,并且具有用于从流体中过滤小颗粒的细孔。 将第一和第二阶段材料从过滤膜中悬浮以过滤小颗粒。