Proceedings of the KSME Conference (대한기계학회:학술대회논문집)
- 2008.11b
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- Pages.3026-3031
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- 2008
A Numerical Analysis of Oil Separation Performance Classified by Oil Mist Diameter for Cyclone Oil Separator
실린더 헤드커버 내장형 오일분리 장치의 오일 직경별 분리효율에 관한 해석적 연구
Abstract
In conventional closed-loop crankcase ventilation systems, the lubrication oil had to be re-circulated to the intake manifold, in the form of oil mist mixed with the blow-by gas. This blow-by gas containing the engine lubricant oil affects on the engine problems and the exhaust emissions. A high-efficient oil separator is required to minimize consumption of engine oil and reduce harmful emissions. In the conventional oil separator of CI engines, it has good oil separation performance even though separator design is simple, due to lots of the blow-by gas. As the emission regulation becomes severe, the oil separator for SI engines is also required. But in SI engines, separator design should be optimized, due to small size of oil particles and little amount of blow-by gas. In this study, oil separation performance classified by diameter of oil mist in cylinder head cover internal model which has three cyclones and two baffle plates for SI engine is calculated with CFD methodology.