Filter with preferential fluid affinity
    17.
    发明授权
    Filter with preferential fluid affinity 有权
    过滤器具有优先的流体亲和力

    公开(公告)号:US06422395B1

    公开(公告)日:2002-07-23

    申请号:US09480748

    申请日:2000-01-10

    IPC分类号: B01D3916

    摘要: A filter is composed of filter media having the following characteristics in combination: a) the filter media has a greater affinity for the filtered fluid than for contaminants in the fluid, and wherein the work of adhesion between the filter media and the contaminants is less than the work of adhesion between the filter media and fluid, and wherein the filter media is preferentially wetted by the fluid relative to the contaminants; b) the filter media is composed of fibers having a defined surface area ratio facilitating fewer attachment sites for contaminants, and, in the case of cleanable reusable filters, facilitating cleansing backwash of the cleanable reusable filter by cleansing fluid along a reverse flow backflush path; c) the filter media has a thickness of 0.025 to 0.075 inch, 0.7 to 2.0 millimeters; d) the face area of the filter media is maximized by pleating the filter media and forming the pleated filter media into an annulus having an inner circumference and an outer circumference and having at least five pleats per inch along the inner circumference; e) the filter media is optionally provided with both upstream and downstream support layers preventing collapse of the thin surface filter media during both filtration and backwash, the support layers being pleated annular screens sandwiching the pleated filter media therebetween, the inner portions of the pleats of the downstream support layer screen adjacent the inner circumference preventing blinding.

    摘要翻译: 过滤器由具有以下特性组合的过滤介质组成:a)过滤介质对过滤流体的亲和力大于流体中的污染物,并且其中过滤介质和污染物之间的粘附作用小于 过滤介质和流体之间的粘合作用,并且其中过滤介质相对于污染物优先被流体润湿; b)过滤介质由具有限定的表面积比的纤维组成,促进污染物的附着位置较少,并且在可清洁的可重复使用的过滤器的情况下,通过沿逆流反冲路径清洗流体来促进清洁可再利用过滤器的反冲洗; c)过滤介质的厚度为0.025至0.075英寸,0.7至2.0毫米; d)过滤介质的面部区域通过打褶过滤介质而最大化,并将褶皱过滤介质形成为具有内圆周和外圆周的环形区域,并且沿着内圆周具有至少五个褶皱/英寸; e)过滤介质任选地设置有上游和下游支撑层,防止在过滤和反冲洗期间薄表面过滤介质的破裂,支撑层是将褶皱过滤介质夹在其间的打褶环形筛,褶皱的内部 下游支撑层屏幕邻近内周防止盲法。

    Filter with pressure sensor mounted in housing end
    18.
    发明授权
    Filter with pressure sensor mounted in housing end 失效
    过滤器安装在外壳端的压力传感器

    公开(公告)号:US5858224A

    公开(公告)日:1999-01-12

    申请号:US819296

    申请日:1997-03-18

    IPC分类号: B01D29/21 B01D35/143

    CPC分类号: B01D29/21

    摘要: A fluid filter (10) includes a housing (14), a mounting head (16), a filter element (34), and a pressure sensor (54) mounted to the housing (14) and having a high pressure port (58) communicating with the high pressure side (36) of the filter element (34) and having a low pressure port (60) communicating with the low pressure side (38) of the filter element (34) to sense the pressure drop across the filter element.

    摘要翻译: 流体过滤器(10)包括壳体(14),安装头(16),过滤元件(34)和安装到壳体(14)并具有高压端口(58)的压力传感器(54) 与过滤元件(34)的高压侧(36)连通并且具有与过滤元件(34)的低压侧(38)连通的低压端口(60),以感测过滤元件 。

    Apparatus and method for in situ cleaning of oil filter
    19.
    发明授权
    Apparatus and method for in situ cleaning of oil filter 失效
    滤油器原位清洗装置及方法

    公开(公告)号:US5462679A

    公开(公告)日:1995-10-31

    申请号:US122382

    申请日:1993-09-16

    IPC分类号: B01D27/00 B01D29/21 B01D29/66

    摘要: A reusable oil filter adapted to filter oil used in an engine includes a housing operatively connected to the engine, filter media disposed within the housing, a singular backwashing inlet operatively connected on the housing and an oil drain operatively connected with the housing. Pressurized air delivered through the backwashing inlet forces filtered oil to backflow through the filter media displacing contaminated oil from the filter media and creates an air-oil foam for further cleaning the filter media while the housing remains connected to the engine.

    摘要翻译: 用于过滤发动机中使用的油的可重复使用的油过滤器包括可操作地连接到发动机的壳体,设置在壳体内的过滤介质,可操作地连接在壳体上的单一反冲洗入口和与壳体可操作地连接的排油口。 通过反冲洗入口输送的加压空气迫使过滤的油通过过滤介质回流,从而将污染的油从过滤介质移出,并且在壳体保持连接到发动机的同时产生空气 - 油泡沫以进一步清洁过滤介质。