РЕЗУЛЬТАТЫ ИССЛЕДОВАНИЙ ПО ОПРЕДЕЛЕНИЮ РАЦИОНАЛЬНОГО СПОСОБА УДАЛЕНИЯ ЗАГРЯЗНЕНИЙ ИЗ МОТОРНОГО МАСЛА БЕЗ ЕГО СЛИВА ИЗ СИСТЕМЫ СМАЗКИ

Abstract

Contaminants are formed in diesel internal combustion engines of tractors during operation under the influence of high temperatures and loads on the parts of the cylinder-piston group, which then enter the engine oil, which affects the service life of the oil and the characteristics of the machine-tractor unit. An important measure that affects the contamination of parts and the service life of the oil is flushing the lubrication system during routine replacement of used oil. However, for a number of well-known objective and subjective reasons, this technological method is practically not carried out under real operating conditions. Resource-saving technology for flushing the lubrication system with motor oil running in the tractor engine was developed at TSTU. A number of technological methods for cleaning oil from contaminants and resins under the influence of chemical reagents added to the oil, followed by idling the engine, have been developed. The dependences of changes in contamination, base number, viscosity and color of the oil on the cleaning method, the concentration of the addition of urea, monoethanolamine, and isopropanol reagents were obtained. It has been determined that the addition of isopropanol can increase the flash point of the oil. The dependences of the change in base number and viscosity on the concentration of monoethanolamine with isopropanol in the oil have been established. The rational concentration for adding this additive is 2–3% of the oil volume. It was determined that the color of the oil changes from 9 to 4 points per unit. CNT. Research on the use of finely dispersed contaminants as a separating agent and coagulant has established that 3% vol. carbamide dissolved in ammonium hydroxide allows you to get the best result. Research in this area will be continued and requires confirmation in a wide range of oils and the technological state of tractor engines.