Investigation of Gas Blow-by Through Turbocharger Sealing System Using Advanced Computational Simulations
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Date
2024-11-06
Authors
Novotný, Pavel
Vacula, Jiří
Kudláček, Petr
Kocman, František
0000-0002-7513-2345Advisor
Referee
Mark
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MDPI
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Abstract
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.
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Peer-reviewed
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en