This paper presents course of research on ferro-fluidal seals used in water. The tests were carried out fora hydrophobic magnetic fluid and specially selected profiles of sealing lips at various linear velocitiesin sealing unit. Though the tests were preliminary their results showed that the research on application of magnetic fluids to seals working in liquid environment should be continued. From the point of view ofdevelopment of ring drives the most important advantage of ferro-fluidal seals is their smallest drag ascompared with seals of other types
Faculty of Ocean Engineering and Ship Technology, Gdansk University of Technology, Narutowicza 11/12, 80-952 Gdansk, Poland
Bibliografia
1. B. M. Berkovsky: Magnetic fluids engineering applications, Oxford University Press, Oxford-New York-Tokyo,1993.
2. Z. Szydło, W. Ochoński, B. Zachara: Experiments on magnetic fluid rotary seals operating under vacuum conditions, Tribotest Journal, 2005 vol. 11 no. 4.J. Kurfess, H.K. Müller: Sealing Liquids with Magnetic Fluids,Journal of Magnetism and Magnetic Materials 85, 1990.
3. Z. Szydło, L. Matuszewski: Ring driving unit – preliminary investigations on optimization of ferro-fluidal seals and drives(in Polish).
4. W. Ochoński, Z. Szydlo, B. Zachara: Experimental study of frictional characteristics of magnetic fluid shaft seals, Proc. Int. Tribology Conf., Nagasaki, Japan (2000)