Browse > Article
http://dx.doi.org/10.9725/kstle.2006.22.6.329

Analysis of Check Valve Seal for CNG Vehicle Fuel Supply Line  

Yoo, Jae-Chan (Dept. of Mechanical and Aerospace Engineering, Gyeongsang National University)
Yeo, Kyeong-Mo (Dept. of Mechanical and Aerospace Engineering, Gyeongsang National University)
Kang, Byeong-Roo (Parker Hannifin Connector Ltd.)
Park, Tae-Jo (Dept. of Mechanical and Aerospace Engineering, Gyeongsang National University)
Publication Information
Tribology and Lubricants / v.22, no.6, 2006 , pp. 329-334 More about this Journal
Abstract
In CNG (Compressed natural gas) fuel supply line, whose main components are receptacle and check valve are used to charge high pressure gas to the tank of NGV (Natural gas vehicle). It is reported that the seal is separated occasionally form valve seat and results in blockage of gas flow. In this paper, MARC is used to investigate the reasons of seal separation and suggest design improvements. The static gas pressure distributions acting on the seal which calculated using FLUENT are considered to investigate accurate seal deformation behaviors. Deformed seal shapes are obtained for various amounts of seal interference and its location, gas pressure distributions and Young's modulus of the rubber used. The results showed that the reasons of seal separation problems are verified theoretically, and suggested examples of new design method. Therefore the present numerical methods can be applied in designing and performance analysis of rubber seals adopted in high pressure fluid machineries.
Keywords
CNG; check valve; seal; numerical analysis; MARC; FLUENT;
Citations & Related Records
연도 인용수 순위
  • Reference
1 MARC User's Manual, Ver.2005 R2, MSC Software Inc
2 Nikas, G. K. and Sayles, R.S., 'Nonlinear Elasticity of Rectangular Elastomeric Seals and its Effect on Elastohydrodynamic Numerical Analysis,' Tribology lnt.,VoI. 37, pp. 651-660, 2004   DOI   ScienceOn
3 여경모, 박태조, 송명길, 강병루, 'CNG차량의 연료공급라인용 Check Valve내의 유동해석,' 대한기계학회 춘계학술대회논문집, pp.159-163, 2006
4 Gas Research Institute,'NGV Check Valve / Fueling Receptacle Performance,' GRI Technical Report, GRI-97-0369, 1997
5 Banerjee, R., et al., 'CFD Simulation of Critical Components in Fuel Filling Systems,' SAE Paper 2002-01-0573, 2002
6 Gato, L. M. C. and Henriques, J. C. C.,'Dynamic Behaviour of High-pressure Natural-gas Flow in Pipelines,' Int. J. of Heat and Fluid Flow, Vol. 26, pp.817-825, 2005   DOI   ScienceOn
7 FLUENT, FLUENT 6.0 Manual, 2002