RESOURCE-SAVING RUN-IN OF INTERNAL COMBUSTION ENGINES AT USE OF OIL MODIFYING ADDITIVES

Abstract

Using the example of the cold stage of running-in of a D-245 diesel engine on a running-brake stand KI-2139B at a crankshaft speed of the engine being run in within 700±10 min^–1, it was established that the use of additives to lubricating oils allows reducing the break-in time by 1,5 times. Cold running-in of diesel engines at a repair facility using M-10G2 oil with the SURM KV additive containing 3,2–3,4% at a supply oil temperature of 55–65 °C requires a duration of 60 minutes. The use of the SURM KV additive makes it possible to obtain compression pressures during cold running that are the same as during hot running at idle using the basic technology. The exclusion of the hot running-in mode at idle speed from the technological process of running-in diesel engines is justified. The economic effect of introducing special additives into the lubricant during running-in of internal combustion engines is to reduce its time and reduce fuel consumption.