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http://dx.doi.org/10.9725/kstle.2008.24.3.140

Theoretical research of Static Characteristics of Bump Floating Ring Seal  

Kim, Kyoung-Wook (Dept. of Mechanical Engineering, Korea University)
Chung, Jin-Taek (Dept. of Mechanical Engineering, Korea University)
Kim, Chang-Ho (Korea Institute of Science and Technology)
Lee, Young-Bok (Korea Institute of Science and Technology)
Publication Information
Tribology and Lubricants / v.24, no.3, 2008 , pp. 140-146 More about this Journal
Abstract
The floating ring seal which is used in the high pressure turbo pump is frequently used in the oxidizer pump and the fuel pump of the turbo pump of the liquid propulsion rocket, because it is able to minimize clearance to decrease the leakage flow rate. But, the floating ring seal has a tendency to increase instability in decreasing eccentricity ratio. To complement this weakness, it is devised bump floating ring seal which is inserted bump in the outer surface. It has various experiment results. But the theoretical study of the bump floating ring seal didn't investigated yet. In this paper, we analyse about static characteristics of bump floating ring seal, compared previous experimental results. To analyze the characteristic of bump floating ring seal, we coupled perturbation method of floating ring seal and FEM of bump foil.
Keywords
bump foil; bump floating ring seal; eccentricity ratio;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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