Аннотация
This article reveals the influence of the main quality indicators and parameters of the hydrocarbon composition of the fuel on the power indicators of truck engines used in agriculture for transport work. Also, the possibility of improving the quality of fuel and improving the performance of the ZMZ-511 engine by using the methyl tret-butyl ether additive is reflected in more detail. Laboratory studies were carried out to determine the parameters of the hydrocarbon composition of gasoline samples taken at various gas stations in the city of Kostanay. The parameters of the studied samples of gasoline AI-92 and AI-92 with MTBE additive were determined, in particular, the main indicators of quality, content of water-soluble acids and alkalis, density, fractional composition and octane number. It has been established that all the studied indicators comply with the requirements of GOST. Research tests of the ZMZ-511 engine were carried out at the FWC-2 stand for running in and testing engines. It has been established that when working on a mixture of AI-92 gasoline with MTBE additive, with an increase in the crankshaft speed, the engine torque increases, and the engine power increases accordingly, the difference can be up to 2-3%. It is concluded that the mixture of fuel with MTBE additive will have a positive effect on the operation of trucks with this engine.