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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.
윤동원(D. W. Yun),윤소남(S. N. Yun),박중호(J. H. Park),김칠성(C. S. Kim) 유공압건설기계학회 2010 유공압건설기계학회 학술대회논문집 Vol.2010 No.10
This paper presents the analysis on the proportional pressure control valve with large capacity for industrial use. Some theoretical and numerical analysis wa performed to design the proportional solenoid valve and a code has been developed for caculation for solenoid valve. To do this, analytical and numerical method was used. After several analysis, a real part for solenoid valve. To do this, analytical and numerical method was used. After several analysis, a rel part for solenoid valve are manufactured and some experiment for assembled solenoid valve was performed. The experiment reults show that the results from the developed program comes to nearly that of experiment.
윤동원(D. W. Yun),윤소남(S. N. Yun) 한국동력기계공학회 2008 한국동력기계공학회 학술대회 논문집 Vol.2008 No.11
This paper presents the characteristics of the proportional pressure control valve for industrial use. some theoretical and numerical analysis was performed to design the proportional solenoid valve. After several analysis, a real part for solenoid valve are manufactured and some experiment for assembled solenoid valve was performed. The experiment results show that the developed solenoid valve work properly.
윤소남(S. N. Yun),함영복(Y. B. Ham),박중호(J. H. Park),윤동원(D. W. Yun),허덕열(D. Y. Hur) 유공압건설기계학회 2010 유공압건설기계학회 학술대회논문집 Vol.2010 No.10
This paper presents a steady characteristics of a on-off solenoid valve for fuel cell systme. In this study, The air inlet valve_1, which means that this valve controls the air flow and direction of air inlet port in fuel cell system, was suggested and manufactured. In order to make the improved valve for fuel cell system, the structure analysis and magnetic field analysis were conduted. The experimental setup for solenoid performance measurement which has a force sensor and a displacement sensor was also manufactured. The steady state performances of fabricated solenoid valve for fuel cell were experimentd and analyzed. In this study, the response characteristics improvement draft of a solenoid actuator for the on-off solenoid valve for fuel cell also basically discussed.