Influence of the air pressure and oil amount to the temperature of the high-speed bearings lubricated by oil mist

Purpose The purpose of this paper is to improve the lubrication and remove as much as possible of the heat generated in the bearing assembly, embedded in the jet engine. Design/methodology/approach To determine the necessary values of the air pressure and oil amount, an experimental approach is used...

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Bibliographic Details
Published inIndustrial lubrication and tribology Vol. 74; no. 3; pp. 335 - 341
Main Authors Stanković, Miloš, Kolarević, Nenad, Davidovic, Nikola, Miloš, Marko
Format Journal Article
LanguageEnglish
Published Bradford Emerald Publishing Limited 29.03.2022
Emerald Group Publishing Limited
Subjects
Antiwear additives
Ball bearings
Bearings
Compressed air
Elastohydrodynamic lubrication
Heat
High speed
Jet engines
Lubricants & lubrication
Lubrication
Lubrication research
Oil mist
Parameters
Temperature
Velocity
Viscosity
Oil mist lubrication
Air-pressure/oil-amount ratio
High-speed bearings lubrication
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Summary:Purpose The purpose of this paper is to improve the lubrication and remove as much as possible of the heat generated in the bearing assembly, embedded in the jet engine. Design/methodology/approach To determine the necessary values of the air pressure and oil amount, an experimental approach is used. For that purpose, a custom made test rig is developed. Findings Less amount of oil makes better lubrication conditions, reflected in the smaller temperature of the bearings. Concerning the air pressure, too high and too low air pressure deteriorates the lubrication parameters. An optimum value should be determined experimentally. The influence of oil amount is remarkably bigger than the influence of air pressure. Originality/value This experimental investigation provides an easy and fast way to improve the high-speed bearings lubrication parameters.
ISSN:0036-8792
1758-5775
DOI:10.1108/ILT-06-2021-0222