Analysis and experimental study on oil leakage from fluid bearing
by N. Hishida, T. Hirayama, M. Hashimoto, T. Matsuoka, H. Yabe
International Journal of Surface Science and Engineering (IJSURFSE), Vol. 4, No. 2, 2010

Abstract: The fundamental characteristics of the taper seal used to prevent oil leakage from fluid bearings were analysed theoretically and investigated experimentally. The three-dimensional flow field was theoretically analysed using numerical fluid dynamics, and the profile of the oil meniscus was calculated using the balance between the pressure field and surface tension. The oil meniscus was experimentally investigated using a micro-focus laser microscope. Three triggers for oil leakage were identified: the oil contact angle on the sleeve surface becoming excessive, the convex portion of the meniscus profile extending beyond the edge of the sleeve, and cavitation occurring in the oil.

Online publication date: Fri, 18-Dec-2009

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