New Combined Centrifuge for Cleaning the Working Fluids of Hydraulic Drives from Mechanical Contaminations

The contamination of the working fluid in the hydraulic drives of machines can exceed the permissible values by several times, while the actual time between failures of hydraulic units is significantly lower than the standard. This indicates the need to improve the processes of cleaning the working fluids of hydraulic drives of machines and equipment from mechanical contaminants, for which it is necessary to improve the means of cleaning. Based on this, a new design centrifuge with a hydrojet rotor rotation drive is developed, in which a synergistic combination of several different ways to increase work efficiency was used to increase the efficiency and quality of cleaning the working fluid. A theoretical substantiation of the main parameters of the new centrifuge is made, a prototype is made, its experimental studies and production tests are carried out, some results of which are given in this paper. Because of the experiments, graphical functional dependences of the parameters of the centrifugation process on the main influencing factors are obtained, indicating the high efficiency of the new centrifuge and its ability to reduce the wear of hydraulic units. In addition, the experiments showed a satisfactory accuracy of the obtained theoretical dependencies. Production tests of a prototype of the new centrifuge confirmed the results of laboratory studies and the high efficiency of its operation. The use of a new centrifuge in a hydraulic drive can have a positive economic effect. The new centrifuge can also be used to remove mechanical impurities from a wide variety of technical liquids in various machine and equipment systems.