COMBINED STANDARD FULL-FLOW FILTER AND MICRO PART-FLOW FILTER WITH VENTURI NOZZLE

摘要

Mechanical device having a hydraulic medium for operational use of the device, comprising a hydraulic medium collecting part (1) provided with standard filtering means (2), the device being provided with pumping means for feeding said hydraulic means from said collecting part (1) to within the device, a suction path (1,2,3) including said standard filter (2) being provided in the device so as to ensure the device to be fed with filtered hydraulic means, characterized in that the device is further provided with a micro-filter part (4), preferably comprising a so called high efficiency micro-filter, a venturi device (7) further being incorporated in said suction path between the said pumping means and the said standard filtering means (2), a relaying connection line (6) being provided, connecting a discharge opening (5) of said micro-filter part (4) with a low pressure zone (9) of said venturi means (7).