Investigation of Gas Blow-by Through Turbocharger Sealing System Using Advanced Computational Simulations

Gas blow-by flow through a turbocharger sealing system has a significant effect on lubricant consumption and the formation of particles. This paper presents an experimentally validated computational model to quantify the mass flow of gasses through a sealing system as a function of operating conditi...

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Bibliographic Details
Main Authors: Pavel Novotný, Jiří Vacula, Petr Kudláček, František Kocman
Format: Article
Language:English
Published: MDPI AG 2024-11-01
Series:Engineering Proceedings
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Online Access:https://www.mdpi.com/2673-4591/79/1/47
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Summary:Gas blow-by flow through a turbocharger sealing system has a significant effect on lubricant consumption and the formation of particles. This paper presents an experimentally validated computational model to quantify the mass flow of gasses through a sealing system as a function of operating conditions. The computational model is applied to a truck engine turbocharger and the results are verified experimentally. The results show that the gas blow-by is not only influenced by the geometrical parameters of the lubrication system but is controlled by the thermo-mechanical loading of the turbocharger, with a non-negligible influence of the radial dynamics of the rotor.
ISSN:2673-4591