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윤소남(S. N. Yun),함덕용(D. Y. Ham),한유리(Y. Han),이근우(G. W. Lee),정병홍(B. H. Jeong) 한국동력기계공학회 2008 한국동력기계공학회 학술대회 논문집 Vol.2008 No.11
In this study, EEV(Electronic Expansion Valve) which is consist of a stepping motor, 3-stage reduction gear, a positioner and a poppet valve and controls the mass flow in air conditioning system was researched. The steady state characteristics of the convential type EEV were disscussed by experiment and various types of EEV were also analyzed through the FEM calculation method. From this study, new model with a double bellows structure for air conditioning system was suggested and the performance characteristics were also evaluated.