Tribology and Lubricants

  • 제26권4호
  • /
  • Pages.240-245
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  • 2010
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  • 2713-8011(pISSN)
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  • 2713-802X(eISSN)
한국트라이볼로지학회 (Korean Tribology Society)
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경유 혼입을 고려한 엔진 메인 베어링의 유막거동에 관한 수치적 연구

Numerical Analysis on the Oil Film Behavior of Engine Main Bearing Considering Dilution of Diesel Fuel

  • Kim, Han-Goo (Research and Development Institute, Double Industrial Co., Ltd.)
  • 투고 : 2010.05.25
  • 심사 : 2010.07.16
  • 발행 : 2010.08.31
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초록

This paper describes the influence on engine main bearing behavior of the oil film when the fuel is diluted on a diesel engine equipped with DPF system. Oil film pressure and the thickness is calculated in accordance to the fuel dilution. The calculation is based on the numerical analysis of the engine main bearing. As a result, the engine oil viscosity decreased as the fuel dilution increased. This led the increment of the maximum oil thickness pressure. Verification of the minimum oil film thickness settlement by the engine gas pressure and the fuel dilution was confirmed. Destruction possibility of the engine main bearing was foreseen when the engine speed was 2000 rpm with the fuel dilution 15% and the 5W40 engine oil.

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참고문헌

  1. Shayler, P. J., Winborn, L. D. and Scarisbrick, A., "The Build-Up of Oil Dilution by Gasoline and the Influence of Vehicle Usage Pattern," SAE 2000-01-2838, 2000.
  2. Takumaru Sagawa, Hiroya Fujimoto and Kiyotaka Nakamura, "Study of Fuel Dilution in Direct-Injection and Multipoint Injection Gasoline Engines," SAE 2002-01-1647, 2002.
  3. Terrence F. Alger, Yiqum Huang, Matthew J. Hall and Ronald D. Matthews, "Liquid Film Evaporation Off the Piston of a Direct Injection Gasoline Engine," SAE 2001-01-1024, 2004.
  4. Naeim A. Henein, Inderpal Singh, Ming-Chia Lai, Lurun Zhong and Joong Sub Han, "Characteristics of a Common-Rail Diesel Injection System Under Pilot and Post Injection Modes," SAE Paper 2002-01-0218, 2002
  5. Sasa Bukovnik, Nicole Dorr, Valdas Caikal, Wilfried J. Bartz and Bernhard Loibnegger, "Analysis of Diverse Simulation Models for Combustion Engine Journal Bearings and the Influence of Oil Condition," Tribology International, Vol. 39, No. 8, pp. 820-826, 2006. https://doi.org/10.1016/j.triboint.2005.07.023
  6. 김한구, 김청균, "디젤유가 혼입된 엔진오일의 트라 이볼로지 특성에 관한 실험적 연구," 한국윤활학회지, 제21권, 제4호, pp. 159-164, 2005.
  7. Kim, C. K., Kim, H. G., Lee, B. K., Kim and T. H., "Experimental Study on the Viscosity Characteristics of Diluted Engine Oils with a Diesel Fuel," Proceeding of The Third Asia International Conference on Tribology, Vol. 1, pp. 1285-286. 2006.
  8. Song, B. H. and Park, T. S., "An Experimental Study of Characteristic Variation of Lubricating Oil Diluted by Post Injected Fuel for the Regeneration of CDPF and Its Effects on Engine Wear," Internal Combustion Engine Symposium, KSAE 20056111, 2005.
  9. Ryou Oinuma, Shuuji Takuma, Tooru Koyano and Masaaki Takiguchi, "Effects of Post Injection on Piston Lubrication in a Common Rail Small Bore Diesel Engine," SAE Paper 2005-01-2166, 2005.
  10. "AVL EXCITE User's Manual," Version 6.1, AVL, 2004.
  11. H. H. Priebsch and J. Krasser, "Simulation of the Oil Film Behaviour in Elastic Engine Bearing Considering Pressure and Temperature Dependent Oil Viscosity," 23rd Leeds-lyon Symposium on Tribology, 1996.
  12. Oliver Knaus, Bernhard Loibnegger, Hubert M. Herbst and Gudrun Kreuzwirth, "Einfluss von Strukturdynamik und elasto- hydrodynamischer Lagerung auf die Pleuelgestaltung," MTZ, Jahrgang, Vol. 63, pp. 546-554, 2002.
  13. Kim, C. K., Kim, H. G., Kim, M. K. and Kim, Y. G., "On the Oil Film Behaviors of Engine Bearing with a Crankshaft Misalignment," Proceeding of The Third Asia International Conference on Tribology, Vol. 1, pp. 217-218. 2006.