HIGH VOLUME SELF-CLEANING FILTER

摘要

The present invention relates to a filter unit (10), comprising a housing (12) having an inlet (14) and outlet (16) for fluid containing solid contaminants and a back-flush inlet (18) and back-flush outlet (20) for cleansing fluid. This housing (12) contains a substantially cylindrical filter element (22) which is coincident with housing (12). The filter element (22) has disposed within it a conduit (24), coincident with the filter element (22). the conduit (24) also has disposed along its surface cleansing members (28), which extend from the conduit (24) to the filter element (22) to allow the cleansing fluid to flow through the members (28) and into the conduit (24) and to the back-flush inlet (18).