Increasing the operating time of tractor diesel internal combustion engines at agro-industrial complex enterprises

Abstract

The issue of reducing the operating time of parts of the fuel system of automotive diesel internal combustion engines is discussed. The relevance of increasing the operating time of the internal combustion engines of tractors operated in the agro-industrial complex is emphasized. The need to reduce wear and increase the operating time of diesel fuel system parts is discussed. A method of increasing the operating time of fuel system components is presented. The author points out that one of the ways to increase the operating time of tractor internal combustion engines is to improve the performance properties of diesel fuels. The objective is to increase the operating time and ensure the service life of precision pairs of diesel injector nozzles by improving the performance properties of fuels. The research goal is to evaluate the influence of the performance properties of diesel fuel with an additive based on vegetable oils (tall oil and linseed oil) on the wear process of parts of injector nozzles of diesel internal combustion engines. The PTLM additive is presented as an anti-wear additive that ensures an increase of the operating time of the fuel system of diesel engines of tractors and combines under agricultural conditions. A procedure for assessing the wear of precision parts of injector nozzles is presented. The nominal concentration of the additive in diesel fuel has been determined; its use ensures the least weight wear of the injector nozzle valve. A method for studying the dynamics of part wear of the FD-22 injector nozzle carried out on the KI-921M fuel stand is described. The results of engineless bench comparative tests of atomizers operating with commercial and experimental fuels are presented. Regression models of the wear rate of injector nozzle parts on the concentration of the PTLM additive in the fuel were obtained. A cause-and-effect relationship was found for increase of weight wear intensity with increased concentration of the PTLM additive in diesel fuel.