Cylinder Compression Unevenness and Internal Combustion Engine Life

The dependence of indicators of reliability, efficiency and the degree of negative impact on the environment on the degree of uneven operation of cylinders in an internal combustion engine of motor vehicles is considered. The importance of controlling the uneven operation of the cylinders during the operation of the car is substantiated. A more accurate indicator for estimating the uneven operation of cylinders based on the results of the compression values measured in them is proposed. The results of analytical and experimental studies necessary to predict the life of an internal combustion engine based on the initial value of the coefficient of unevenness of the compression properties of the cylinders after the repair are presented. Recommendations are given for the built-in means of continuous piecemeal monitoring/diagnosis of the technical condition of cylinder piston groups of internal combustion engines.