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http://dx.doi.org/10.9725/kstle.2010.26.4.240

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.)
Publication Information
Tribology and Lubricants / v.26, no.4, 2010 , pp. 240-245 More about this Journal
Abstract
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.
Keywords
engine main bearing; engine oil; fuel dilution; maximum oil film pressure; minimum oil film thickness;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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