Tribology and Lubricants

Korean Tribology Society (한국트라이볼로지학회)
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Analysis of Check Valve Seal for CNG Vehicle Fuel Supply Line

CNG차량의 연료공급라인용 Check Valve Seal의 거동해석

  • 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)
  • 유재찬 (경상대학교 기계항공공학부) ;
  • 여경모 (경상대학교 기계항공공학부) ;
  • 강병루 (㈜파카하니핀커넥터) ;
  • 박태조 (경상대학교 기계항공공학부)
  • Published : 2006.12.31
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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

References

  1. Gas Research Institute,'NGV Check Valve / Fueling Receptacle Performance,' GRI Technical Report, GRI-97-0369, 1997
  2. 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 https://doi.org/10.1016/j.ijheatfluidflow.2005.03.011
  3. MARC User's Manual, Ver.2005 R2, MSC Software Inc
  4. FLUENT, FLUENT 6.0 Manual, 2002
  5. 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 https://doi.org/10.1016/j.triboint.2004.02.002
  6. Banerjee, R., et al., 'CFD Simulation of Critical Components in Fuel Filling Systems,' SAE Paper 2002-01-0573, 2002
  7. 여경모, 박태조, 송명길, 강병루, 'CNG차량의 연료공급라인용 Check Valve내의 유동해석,' 대한기계학회 춘계학술대회논문집, pp.159-163, 2006

Cited by

  1. 회전체 동역학 및 트라이볼로지 요소의 연구동향 vol.11, pp.1, 2008, https://doi.org/10.5293/kfma.2008.11.1.100