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    FILTERELEMENT, FILTER UND FILTERSYSTEM MIT RÜCKLAUFBYPASS
    2.
    发明公开
    FILTERELEMENT, FILTER UND FILTERSYSTEM MIT RÜCKLAUFBYPASS 审中-公开
    FILTERELEMENT，FILTER UND FILTERSYSTEM MITRÜCKLAUFBYPASS

    公开(公告)号：EP3197581A1

    公开(公告)日：2017-08-02

    申请号：EP15767481.3

    申请日：2015-09-23

    申请人： Mann+Hummel GmbH

    发明人： STRASSENBERGER, Norbert ,  TSCHEPE, Kathrin ,  WYHLER, Heiko ,  KOCKSCH, Christian ,  BANKS, Christopher ,  POSTEL, Martin ,  THALMANN, Christian ,  PFLÜGER, Frank ,  OPRISCH, Christine

    IPC分类号： B01D27/10 ,  B01D29/21

    CPC分类号： B01D35/1475 ,  B01D27/106 ,  B01D29/11 ,  B01D29/21 ,  B01D29/668 ,  B01D35/153 ,  B01D35/16 ,  B01D2201/167

    摘要： The invention relates to a filter (12) for filtering a medium, in particular an aqueous urea solution to be filtered. The filter (12) has a filter element (18) with a filter material (30). The medium can be pumped at least partly, preferably completely, out of the filter (12) without passing the filter material (30) such that dirt filtered out of the medium is not released from the filter material (30) and pumped out together with the medium. For this purpose, the filter (12), in particular the filter element (18), is provided with a non-return element (36) such that a flow of the medium from the unfiltered side (32) to the clean side (34) of the filter (12) is blocked but a flow of the medium from the clean side (34) to the unfiltered side (32) of the filter (12) is possible. The non-return element (36) is preferably designed in the form of a mushroom-shaped membrane (42). The membrane (42) is additionally anchored in a continuous recess (46) of the filter (12) preferably by a thickened portion (48) in the base part of the mushroom shape. The head part of the mushroom shape covers preferably at least one through-recess (38, 40) of the filter (12) for the flow of the medium from the clean side (34) to the unfiltered side (32).

    摘要翻译： 过滤元件具有过滤材料，所述过滤材料限定过滤元件的原始侧和清洁侧并且通过介质流过，以从原始侧过滤到干净侧。 在过滤材料上设置止回元件。 止回元件允许过滤介质从清洁侧返回到未处理侧，并防止未过滤介质从未处理侧流向清洁侧。 公开了具有这种滤波器元件的滤波器和滤波器系统。 过滤系统有一个泵，用于向过滤器供应要过滤的介质。