FILTER APPARATUS
    105.
    发明申请
    FILTER APPARATUS 审中-公开

    公开(公告)号:US20180050285A1

    公开(公告)日:2018-02-22

    申请号:US15557514

    申请日:2016-01-12

    Abstract: Disclosed is a filter apparatus comprising a filter housing having a filter head (3) and a filter bowl (7), which housing accommodates a filter element that separates a non-filtrate side (15) from a filtrate side (17), and comprising a differential pressure measurement device (59), which indicates at least a blockage of the filter element during filtration operation and which has a measurement piston (91) that is guided in a measurement housing (88) in a longitudinally displaceable manner, an end face (90) of which piston being subjected to the instantaneous pressure of the non-filtrate side (15), and the opposite end face of the piston being subjected to the instantaneous pressure of the filtrate side (17), each instantaneous pressure passing into the measurement housing (88) via at least one conduit (57, 61, 65, 89). The invention is characterised in that at least a section (57, 61) of the conduit is arranged in an element cap (43) of the filter element.

    FILTER ASSEMBLY
    109.
    发明申请
    FILTER ASSEMBLY 审中-公开

    公开(公告)号:US20170203237A9

    公开(公告)日:2017-07-20

    申请号:US14511485

    申请日:2014-10-10

    Abstract: A filter assembly includes a filter body; a central support for the filter body; an opening provided in each of upper and lower ends of the filter body for receiving a respective end of the central support; and a disposable filter cartridge housed within the filter body for receiving a filter member for filtering contaminates. The filter member is arranged for fluid flow in a radial direction from a first side of the filter member to a second side of the filter member. The disposable filter cartridge includes an impermeable wall that extends axially through the filter member adjacent the second side thereof to protect the second side of the filter member during replacement of the disposable filter cartridge. The impermeable wall is defined by a hollow cylinder which is axially aligned with the openings provided in the upper and lower ends of the filter body.

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