| 摘要 |
<p>A liquid filter apparatus, for connection to inlet and outlet liquid lines, including a mounting holder (2) and a removable filter within the holder. The filter unit (20) includes bottom and top end caps (22, 26) with a core tube (46) and a concentric outer tube (30) extending between the end caps (22, 26). A filter element (40) between the core tube (46) and the outer tube stands on radial ribs (23) extending upward from the bottom end cap (22) and is spaced from the top end cap by similar radial ribs (23) extending downward from the top end cap (26), these ribs creating radial flow channels above and below the filter element (40). The filter element (40) is a wound spiral of filter material (43) and separator (41) forming a plurality of axial flow channels (42, 44). Some of these axial flow channels (42, 44) are open at the top to receive liquid from the top radial flow channel and closed at the bottom, and some of the axial flow channels (42, 44) are closed at the top and open at the bottom to discharge liquid into the bottom radial flow channel. Filter action is by radial flow, through the filter material (43) from the open-top channels (42) to the open-bottom channels (44). The holder (2) includes upper and lower mounting plates (4, 8) and tie rods (10) between them to releasably hold the unit together and to permit removal and replacement of the filter. Means (29) are provided to vent air from the system.</p> |
