ГАЗОДИНАМИЧЕСКОЕ СОВЕРШЕНСТВОВАНИЕ СИСТЕМЫ ВПУСКА АВТОМОБИЛЬНОГО ДВИГАТЕЛЯ ЗА СЧЕТ ПОПЕРЕЧНОГО ПРОФИЛИРОВАНИЯ КАНАЛОВ

The results of experimental research and numerical simulation of gas dynamics in the intake systems of different configuration in a car the internal combustion engine is presented. It is shown that the use in the intake system of pipes with profiled sections with cross sections in the shape of a square or an equilateral triangle leads to a significant change in the structure of the flow up to the slit valve and the engine cylinder. It also leads to a stabilization of the flow (reduction of dead zones) and to increase the volumetric flow of air (average 24 %) via the intake system of the piston internal combustion engine. The transverse profiling of the channels in the intake system can be used in the design of the gas-air paths of piston engines with a view to their gas-dynamic improvement.