FILTERING ELEMENT Russian patent published in 1998 - IPC

FIELD: cleaning of fuel, oil and cooling liquid; food and chemical industries. SUBSTANCE: filtering element has framework in the form of tube with filtering material wound on it, two covers coupled to framework end faces and to filtering material. Framework tube has longitudinal ribs which form longitudinal channels. Clearances for communication of the above-indicated framework longitudinal channels with framework central channel are provided between framework end faces and internal setting end faces of covers. Stops made as cylindrical projections or radial ribs or circular stops are provided on internal setting end faces of covers. Diameter of stops exceeds diameter of internal surface of framework longitudinal channels. Edges of covers are made sloping. Filtering element joints feature high airtightness due to increased rigidity of framework and tight fitting of cover to filtering material. EFFECT: higher efficiency, cheap manufacturing process. 7 cl, 9 dwg