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구지석(J. S. Gu),김대명(D. M. Kim),오성진,함영복(Y. B. Ham),김성동(S. D. Kim) 대한기계학회 2011 대한기계학회 춘추학술대회 Vol.2011 No.5
The radial piston pump has lots of advantage as followings; high operating pressure, compactness, high mechanical efficiency and so on. However this pump also has disadvantage that plunger type piston induce large friction due to sliding. In this study, the ball type piston pump was designed to decrease the friction loss on the plunger type piston pump. To confirm the decreasing of friction loss in the designed pump, The pressure and flow rate characteristics ware measured while the operation condition was changed. After that, the power efficiency of the pump was worked out at experimental data. From this result, the performance of small radial ball piston pump was confirmed.
회전날개 길이를 이용한 제로터 펌프의 용량에 관한 연구
김성동(S. D. Kim),김대명(D. M. Kim),구지석(J. S. Gu),오성진(S. J. Oh),함영복(Y. B. Ham) 유공압건설기계학회 2010 유공압건설기계학회 학술대회논문집 Vol.2010 No.10
It is hard and complex to analytically derive a formula for the volumetric-displacement of a Gerotor pump. An analytical method on the simple formula for calculating volumetric-displacement of a Gerotor pump is proposed in this work, which is relative easy and based upon using length of rotary teeth. The rotary teeth lengths mean the distances from axis of inner rotor or outer rotor to conatact points between inner and outer rotors. The proposed formula is verified through comparison with volumetric-displacement obtained from numerical CAD calculation.
김대명(D. M. Kim),구지석(J. S. Gu),오성진(S. J. Oh),함영복(Y. B. Ham),김성동(S. D. Kim) 대한기계학회 2011 대한기계학회 춘추학술대회 Vol.2011 No.5
A gerotor type volumetric displacement pump is suitable for oil or water hydraulics. For this reason, many researchers have been studied. A gerotor pump has been widely used in various fields. In this study, we were optimized rotor profile, based on an envelope of a family of curves, is proposed. The inf1uence of the circular tooth radius and the length of eccentricity on the configuration of a gerotor pump has been explored in this paper. Throughout the experiment, performance was verified and we describe the design and volumetric displacement characteristics about small-sized gerotor pump.
함영복(Y. B. Ham),구지석(J. S. Gu),김대명(D. M. Kim),김성동(S. D. Kim) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.11
The radial piston pump has lots of advantage as followings; high operating pressure, compactness, high mechanical efficiency and so on. However this pump also has disadvantage that plunger type piston induce large friction due to sliding. In this study, the ball type piston pump was designed to decrease the friction loss on the plunger type piston pump. To confirm the decreasing of friction loss in the designed pump, The pressure and flow rate characteristics ware measured while the operation condition was changed. After that, the power efficiency of the pump was worked out at experimental data. From this result, the performance of small radial ball piston pump was confirmed.
함영복(Y. B. Ham),김대명(D. M. Kim),구지석(J. S. Gu),오성진(S. J. Oh),김성동(S. D. Kim) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.11
A gerotor type volumetric displacement pump is suitable for oil or water hydraulics. For this reason, many researchers have been studied. A gerotor pump has been widely used in various fields. In this study, we were optimized rotor profile, based on an envelope of a family of curves, is proposed. The influence of the circular tooth radius and the length of eccentricity on the configuration of a gerotor pump has been explored in this paper. Throughout the experiment, performance was verified and we describe the design and volumetric displacement characteristics about gerotor pump.