PROBLEMS OF STARTING A COLD DIESEL ENGINE
The problem of starting a diesel internal combustion engine (ICE) of transport and technological machines for the Republic of Tuva is especially urgent. This article provides an overview of devices that facilitate starting a cold diesel engine at low ambient temperatures. Anumber of factors affect engine starting performance at low temperatures. For example, low temperature affects the condition of the battery, as a result of which the characteristics of the electric starting system (starter) deteriorate. Or, a sharp increase in the torque of resistance to rotation of the crankshaft of the engine during start-up due to an increase in the viscosity of the oil with a decrease in the air temperature. And since the diesel engine has a high compression ratio, the resistance to cranking of the crankshaft by the starting devices accompanies an increase in the load on the starter during cold start in conditions of thickened grease. Dry friction between touching parts is also possible, since the thickened oil is not fed through the supply channels for a long time. This is all the result of a low ambient temperature. The number of devices and methods to facilitate starting a diesel engine is extensive and therefore the choice of one or another device in each case is determined by the operating conditions, economic factors and design features of the engine itself.