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Evaluation of the ratios of the main indicators of the dry sealing of the cylinder-piston group of internal combustion engines using a solid lubricant

Nuralin Beket, Kuanyshev Murat, Murzagaliev Akhmet, Kaukarov Altynbek, Utebayev Isatai

Transport Problems

2022

T. 17, z. 3

99--110

This article presents the results of a study of an alternative method for reducing friction losses in the cylinder-piston group of internal combustion engines based on an experimental installation, taking into account changes in the real state of the working surfaces of the mating parts of the piston ring-cylinder pair depending on the operating time. The factors with a progressive effect on the operation of engine friction units as they wear out are studied, and the degree of their influence on wear is estimated. A model of the friction unit of a cylinder-piston group (piston-piston ring pair) of an internal combustion engine based on a solid antifriction material operating without the use of a lubricating fluid is developed and investigated. Comparative results of determining the wear indicators of sealing rings by various methods of wear control are presented. A method for predicting the resource and the real state of the engine is proposed.