Evaluation of the efficiency of diesel fuel with TFO additives on the example of precision interfaces of injection spray nozzles
The article discusses the possibility of using tall and flax oil (TFO) additives developed at the Department of Agricultural Engineering of Omsk State Agrarian University in order to improve the efficiency of diesel fuels by improving its lubricating properties. The reasons leading to a decrease in the efficiency of the spray nozzle, a loss of engine power and an increase in fuel consumption are presented. A decrease in the reliability of the fuel equipment of a diesel engine is described, the cause of which are the low operational properties of diesel fuel and contamination with abrasive impurities. The importance of problems related to the increase of the resources and maintenance of the working condition of spray nozzles is outlined. The question of the sensitivity of precision interfaces of injection spray nozzles to diesel fuel in presence of tall and flax oil (TFO) additives is analyzed. The following dependences are determined: the determination of the impact of factors which contribute to a change in fuel consumption through the precision interfaces of the spray nozzle; the forecast of changes in the hydraulic density of interfaces due to operating time. The purpose of this work is to determine the effect of TFO additives in diesel fuel on the durability of the precision interfaces of injection spray nozzles in diesel engines. The scientific novelty is represented by the study of the issue of the analytical determination of antiwear properties and increase in the efficiency of diesel fuel with TFO additive. The following results were obtained: a dependence allowing for the determination of the number of particles of abrasive impurities at a precise time; an equation determining the influence of factors on changes in consumption through precision interfaces; criteria for an experimental study of changes in fuel supply depending on the content of abrasive impurities in the fuel.