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The reliability of diesel engines is mainly determined by the reliability of operation parts of the cylinder-piston group and crank mechanism. High-quality cleaning of engine oil during operation of mechanical impurities, provided filters coarse, fine filter and centrifugal filter, reduces the rate of wear and tear. The results of simulation of a centrifugal filter to assess its efficiency and the quality of screenings of particles of different sizes in the process of exploitation.

Cleaning of engine oil from contaminating particles and products of wear of parts is an integral part of reliable operation of friction parts of locomotive diesels. The presence of solid particles in the oil leads to abrasive wear of the parts, and as a result reduces their resourceability. Onboard cleaning systems used on locomotives are not able to carry out fine-dispersed cleaning of engine oil. It is proposed to use an external stationary installation of centrifugal cleaners, which will increase the efficiency of cleaning and clarification of engine oil in the planned types of repair and maintenance of locomotives.