Correlation between Lube Oil HTHS and Techno-Economic Performance and Service Life of a Reciprocating Engine

Autor:	Alexander Yu. Shabanov, Alexey Zaitsev, Yury Galyshev, Anatolii Sidorov
Rok vydání:	2018
Předmět:	Engine power Automotive engine Viscosity Work (thermodynamics) business.product_category Petroleum engineering Internal combustion engine Mechanical Engineering Reciprocating engine Horsepower business Motor oil Mathematics
Zdroj:	International Review of Mechanical Engineering (IREME). 12:410
ISSN:	2532-5655 1970-8734
Popis:	This paper discusses the effect of lube oil high-temperature viscosity on performance indices of high-powered automotive engines (e.g., power, fuel economy and wear rate of friction pairs). Such engines are generally prone to departure from hydrodynamic friction mode in friction pairs, caused by high mechanical load and high lube oil temperature. In this case friction horsepower will depend not only on oil viscosity parameters, but also on properties of anti-wear and anti-friction additives, if any. Moreover, spread in high-temperature viscosity of motor oils belonging to the same SAE group may be great enough. This paper furnishes evidence of existence of optimum high-temperature viscosity level, at which fuel economy reaches its maximum. Dependence of optimum viscosity on engine power conditions is revealed. One of the tasks of this work is examination of how high-temperature viscosity (HTHS) of modern all-synthetic motor oils, belonging to various viscosity classes, correlates with friction and wear characteristics of a high-speed motorcar engine.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9949b66651d7adad77a394af47503b84 https://doi.org/10.15866/ireme.v12i5.14571 Zobrazit plný text záznamu