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    Filter medium for turbine and methods of using and producing the same
    4.
    发明授权
    Filter medium for turbine and methods of using and producing the same 有权
    涡轮过滤介质及其使用和生产方法

    公开(公告)号：US06808553B2

    公开(公告)日：2004-10-26

    申请号：US10166739

    申请日：2002-06-12

    申请人： Eizou Kawano ,  Takuya Maeoka

    发明人： Eizou Kawano ,  Takuya Maeoka

    IPC分类号： B01D2905

    CPC分类号： B01D39/1692 ,  B01D39/163 ,  Y10S55/05

    摘要： The present invention is to provide a filter medium for a turbine in which contamination is less likely to be caused in the turbine, and an increase in pressure loss is suppressed. One form of this filter medium includes a porous polytetrafluoroethylene (PTFE) membrane and an air-permeable supporting member. The air-permeable supporting member has a fiber diameter of not more than 15 &mgr;m. This filter medium is used by disposing the air-permeable supporting member on an upstream side of the porous PTFE membrane with respect to air flow passing through the filter medium toward the turbine. Another form of the filter medium of the present invention includes a porous PTFE membrane, a first air-permeable supporting member, and a second air-permeable supporting member.

    摘要翻译： 本发明提供一种用于涡轮机的过滤介质，其中不太可能在涡轮机中引起污染，并且抑制了压力损失的增加。 该过滤介质的一种形式包括多孔聚四氟乙烯（PTFE）膜和透气性支撑构件。 透气性支撑构件的纤维直径不大于15μm。 通过将透气性支撑构件设置在多孔PTFE膜的上游侧，相对于通过过滤介质的气流朝向涡轮而使用该过滤介质。 本发明的过滤介质的另一形式包括多孔PTFE膜，第一透气性支撑构件和第二透气性支撑构件。