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Experimental Investigation of the Influence of Chamber Geometry on Bearing Chamber Oil Leakage

Plehwe, Felix von; Brox, Benedikt 1; Schwitzke, Corina 1; Bauer, Hans-Jörg
1 Institut für Thermische Strömungsmaschinen (ITS), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

This paper presents experimental results identifying the influence of chamber geometry on the oil leakage behaviour of an aero engine bearing chamber. The varied geometrical parameters were the size of the bearing chamber, three different drip lip configurations, and a flinger. The position of the flinger was also varied to simulate mechanical and thermal distortions experienced during engine operations. Previous research has shown that the geometry of a bearing chamber influences the complex two phase flow inside it. This flow in turn influences the tendency of a bearing chamber to leak oil under adverse conditions. Since oil leakage from bearing chambers must be avoided for health and safety reasons, this knowledge is of great importance to the designer of a bearing chamber. The influence of the bearing chamber dimensions on oil leakage behaviour through seals has not yet been identified. The results of this work reveal a link between chamber geometry and leakage behaviour. The dependency of oil leakage rates for different chamber dimensions is also influenced by the investigated bearing chamber components. The complex interplay of these influencing factors was investigated and is described in detail.

DOI: 10.1115/GT2017-63561
Zitationen: 1
Zugehörige Institution(en) am KIT Institut für Thermische Strömungsmaschinen (ITS)
Publikationstyp Proceedingsbeitrag
Publikationsjahr 2017
Sprache Englisch
Identifikator ISBN: 978-0-7918-5077-0
KITopen-ID: 1000074154
Erschienen in Proceedings of the ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition, Charlotte, North Carolina, USA, June 26–30, 2017. Vol.: 1
Verlag The American Society of Mechanical Engineers (ASME)
Seiten V001T01A013 / 1-7
Bemerkung zur Veröffentlichung Paper No. GT2017-63561
Schlagwörter Bearing Chamber, Labyrinth Seal, Experimental, Leakage, Cabin Odour
Nachgewiesen in Scopus
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