Research and development of commercially viable lubricants to intensify working life of marine diesel engines and cylinder piston group in internal combustion engines-Reference-Cited by-同舟云学术

Research and development of commercially viable lubricants to intensify working life of marine diesel engines and cylinder piston group in internal combustion engines

Published:2021-11-30 Issue:4 Volume:2021 Page:62-74
ISSN:2073-1574
Container-title:Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies
language:en
Short-container-title:

Author:

Chanchikov Vasiliy Aleksandrovich¹,Guzhvenko Ivan Nikolaevich¹,Andreev Alexandr Ivanovich¹,Shulimova Marina Aleksandrovna¹,Svekolnykov Sergey Aleksandrovich²

Affiliation:

1. Astrakhan State Technical University

2. LUKOIL-Astrakhanenergo

Abstract

The paper presents the results of studying the influence of variable characteristics of lubricating oils for marine diesel engines (concentration of layered friction modifier in lubricating oil, viscosity of lubricating oil, contact pressure in the friction zone) on the tribological parameters of parts of the cylinder-piston group of marine diesel engines. There are considered the aspects of increasing the reliability and wear resistance of the cylinder-piston group of marine diesel engines when a layered friction modifier is added to the base lubricating oil in a concentration of 1.5 vol.%. There have been carried out the comparative tribological studies of M-16G2CS lubricating oil including an additive based on molybdenum diselenide. Dependences of the wear of parts of the cylinder-piston group of a marine engine on different parameters of the studied lubricants are shown. The wear rate of experimental samples in conditions of variable characteristics of lubricants has been studied. According to the tribological studies of lubricants and structural materials, the tribological rating of lubricating compositions containing M16G2CS marine engine oil as a base and a layered friction modifier - molybdenum diselenide as a tribologically active additive was built. The test tool for the antiwear ability of lubricants is a friction machine of an original design with abraded samples according to the “ball-cylinder” contact scheme. Mechanical mixing of the lubricating medium of “oil + additive” type on the RPU-0.8-55A rotary-pulsating unit was one of the variable parameters in the tests. The tribological efficiency of the studied antiwear additive varies depending on the type of mixing of the additive solution before adding to the base lubricating oil and makes 13-54% (the difference in the diameter of the wear spot of the sample) for mechanical mixing, and for rotary-pulsation mixing - 45-56%.

Publisher

Astrakhan State Technical University

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