Email this article Calculation of the required minimum of a motor oil level on cylinder-piston group moving surfaces of the automotive diesel
- Authors: Putintsev S.V.1, Anikin S.A.2, Demenkova S.P.1, Strelnikova S.S.3
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Affiliations:
- Bauman Moscow State Technical University
- Military Academy of Space Defense n.a. G.K. Zhukov
- Mechanical Engineering Research Institute
- Issue: Vol 89, No 1 (2022)
- Pages: 53-65
- Section: Quality, reliability
- URL: https://journals.rcsi.science/0321-4443/article/view/100063
- DOI: https://doi.org/10.17816/0321-4443-100063
- ID: 100063
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Abstract
BACKGROUND: Theme of this article is actual because issues of the reliable and cost-effective opera-tion of augmented automotive piston engines are still not solved. An important aspect of solving the problem is rational oil supply of the cylinder-piston group.
AIMS: The purpose of this work is the required minimum motor oil level estimation for the hydrodynamic lubrication of the “cylinder-piston skirt” pair. There were set and solved the tasks of determining the volume of motor oil capable of filling: 1) cavities of the flat-topped surface of the cylinder; 2) a raised surface of the piston skirt and 3) the piston skirt clearance. The object of study is an automotive diesel.
METHODS: Three types of analytical determination of the total volume of the cavities of the rough surface and the piston skirt clearance were used as methods for estimation of a motor oil level.
RESULTS: It was found, that the estimation with the well known formula for oil volume (a method 1) gives the overevaluated result of oil level estimation, in comparison with methods 2 and 3, which taking into account the real geometry of cavities and roughness parameters. The advantage of method 3 was determened by criteria of generalization and of simplicity to apply. Using the method 3, the estimated volume of motor oil ensured the hydrodynamic lubrication mode of the “cylinder – piston skirt” pair of the object of study was obtained.
CONCLUSION: The analytical expressions obtained by method 3 can be recommended to optimize the piston engine lubrication systems for reducing the friction and wear losses as well as to minimize a risk of oil starvation and increased oil consumption through burning.
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##article.viewOnOriginalSite##About the authors
Sergey V. Putintsev
Bauman Moscow State Technical University
Author for correspondence.
Email: putintsev50@yandex.ru
ORCID iD: 0000-0002-3793-7273
SPIN-code: 3124-0375
Doctor of Engineering Sciences, Professor
Russian Federation, 5, 2-nd Baumanskaya, Moscow, 105005Sergey A. Anikin
Military Academy of Space Defense n.a. G.K. Zhukov
Email: s.a.anikin@mail.ru
candidate of Engineering Sciences, Associate Professor
Russian Federation, TverSofia P. Demenkova
Bauman Moscow State Technical University
Email: at-demenkov0@mail.ru
ORCID iD: 0000-0002-0846-3910
SPIN-code: 6835-5323
Bachelor of Engineering and Technology
Russian Federation, 5, 2-nd Baumanskaya, Moscow, 105005Sofya S. Strelnikova
Mechanical Engineering Research Institute
Email: sofya.s.strelnikova@yandex.ru
ORCID iD: 0000-0003-4787-4605
SPIN-code: 6332-1272
Junior Researcher
Russian Federation, MoscowReferences
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