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윤소남 (S. N. Yun ),김동건 (D. G. Kim ),윤동원 (D. W. Yun ),신동우 (D. W. Shin ),김문곤 (M. G. Kim ) 한국동력기계공학회 2009 한국동력기계공학회 학술대회 논문집 Vol.2009 No.6
In this study, flow characteristics of the poppet valve for safety valve in electro-hydraulic proportional pressure control equipment were analyzed. A safety valve with a poppet which are applied in industrial field have some advantages like fast response and stable operation. But the displacement is very short and the flow path is very narrow because of above-mentioned roll. Tiny displacement affects the discharge coefficient and eddy flow directly. So, it is very important study to analyze the flow characteristics of the poppet valve in electro-hydraulic proportional pressure control equipment. In this study, flow field numerical analysis of the object poppet valve of which displacement is from 0.1 to 0.3mm was operated. And distribution characteristics of the flow pressure and velocity were analyzed.