Аңдатпа
In modern conditions of operation of cars, especially in megacities, a significant proportion of modes are low loads and idling. Operation in such modes is accompanied by increased specific fuel and lubricant consumption, increased specific emissions of toxic compo nents of exhaust gases, etc. There are a number of methods and means of increasing the efficiency of idling and low load modes. Today, one of the promising methods for solving the problem of increasing efficiency and reducing the concentration of toxic products in exhaust gases at partial loads and idling is the method of cylinder shutdown with valve timing control. The study of indicator and specific performance indicators of the internal combustion engine was carried out using a method that allows determining the impact of switching off any number of cylinders on the power and fuel economy indicators of the engine. Due to the shutdown of cylinders from 1 to 3, an increase in the average indicator pressure by 10.5% was recorded. Due to the increase in the average indicator pressure in the cylinders, the indicator efficiency increases. The shutdown of cylinders in the Honda V6 engine with an engine capacity of 3.5 liters from 1 to 3 leads to an increase in the indicator efficiency of up to 10.5%. According to the results of the study of the effective performance indicators of the Honda V6 engine with a volume of 3.5, it was found that the average effective pressure is 0.981 MPa, the specific effective fuel consumption is 0.260, and the effective efficiency is 0.3142, and they remain practically unchanged.