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http://dx.doi.org/10.9725/kstle.2005.21.4.159

Experimental Study on the Tribological Characteristics of Diluted Engine Oil by Diesel Fuel  

Kim, Han-Goo (Ssangyong Motor Company Research Center)
Kim, Chung-Kyun (Tribology Research Center, Hongik University)
Publication Information
Tribology and Lubricants / v.21, no.4, 2005 , pp. 159-164 More about this Journal
Abstract
An experimental study was conducted to evaluate characteristic variation of diluted engine oils in which contains diesel fuels and its tribological effects on engine components. In this study, diluted engine oils with $10\%,\;15\%,\;and\;20\%$ of initial fuel content rate have been used for measuring the viscosity reduction rate, blow-by gas increment rate, main gallery pressure reduction rate, and fuel content rate in engine oils. These parameters are strongly related to the tribological characteristics of key engine components. The kinematic viscosity of engine oils in which is contained by diesel fuels from $10\%\;to\;20\%$ in oils is decreasing to approximately $54\%$ of initial diluted fuel-oil volume ratios. The experimental results show that the distillated engine oil decrease the viscosity of engine oil and its oil film stiffness, and increase the wear rate of rubbing parts of engine components. Thus we recommend that the containing volume rate of fuels in engine oils should be restricted to $3\~4\%$ for a sophisticated Diesel engine and $5\~7\%$ for a standard one.
Keywords
diesel engine; PM(Particulate Matter); CDPF(Catalyzed Diesel Particulate Filter); blow-by gas; kinematic viscosity;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Matsuo, S., Takami, K. and Yamamoto, H., 'Influence of Properties of Diesel Fuel on Diesel Engine Performance,' JSAE, Vol. 58, No. 11, 2004
2 Shayler, P.J., Winborn, L.D. and Scarisbrick, A., The Build-Up of Oil Dilution by Gasoline and the Influence of Vehicle Usage Pattern, SAE2000-01-2838, 2000
3 Terrence Alger, Yiqum Huang, Matthew Hall and Ronald D. Matthews, 'Liquid Film Evaporation of the Piston of a Direct Injection Gasoline Engine,' SAE2001-01-1024, 2004
4 김홍석 외 6명, 'Peugeot 607 경유 승용차의 매연 여과장치 특성 분석,' Transaction of KSAE, Vol. 12, No. 3, pp. 66-74, 2004
5 Takumaru Sagawa, Hiroya Fujimoto and Kiyotaka Nakamura, 'Study of Fuel Dilution in Direct-Injection and Multipoint Injection Gasoline Engines,' SAE2002-01-1647, 2002