OIL FILTER FOR INTERNAL COMBUSTION ENGINE Russian patent published in 1996 - IPC

FIELD: cleaning oil in lubrication system of internal combustion engines. SUBSTANCE: oil filter has housing 1 with cover 2 inside which central hollow rod 3 with bypass valve 4 is mounted. One end of central rod is screwed into bush secured in lower portion of housing and other end is provided with hexahedral head 6. Housing is provided with holes for supply of oil and mounting of sensor showing pressure of oil in settled dirt drain system. Bypass valve 4 is located in upper portion of central rod. Central rod has five rows of holes; upper row of holes is located above bypass valve. Secured on central rod is filter element made in form of cloth 22 wound on perforated cylinder 18 in layers and reinforced with flexible member over outer diameter. Filter element is mounted in housing at clearance "S" between inner diameter of housing and outer diameter of central rod which does not exceed 2.5 mm. Used as filter material are textile waste of recycling. EFFECT: enhanced efficiency. 2 cl, 2 dwg