Pressure Regulator for PZT Type Pneumatic Valve
This paper presents the characteristics of apneumatic valve which is 2-stage type and consists of apiezoelectric actuator, a controller, a poppet valve and a pressure regulator. Nominal flow of 50 lpm, maximum operating pressure of 0.9MPa and frequency response of 10Hz and over are required in this pneumatic valve, but the pressure regulator is needed because piezoelectric actuator has no ability to control the pressure of 0.9MPa directly. In this study, bimorph type PZT actuator of 25.2mm(L)×7.2 mm(W)×0.5 mm(H) with constant of-220×10-12CN-1 was proposed and investigated. Maximum operating force of 0.052 N and maximum displacement of 63 μm were gotten from the fabricated PZT actuator. From the analysis results, the orifice diameter of 0.6mm for a piezoelectric actuator was derived and then the pressure regulator which can be operated under 0.15 MPa easily was designed and manufactured. Performance and effects of design parameters were simulated by the Simulink of Matlab software, and the results show that the proposed pressure regulator is suitable for the pneumatic valve with a PZT actuator.
Pressure regulator PZT actuator Reducing pressure Solenoid actuator
So-Nam Yun Byung-Soon Ryu Chan-Soo Ryu Kyung-Woo Lee
Korea Institute of Machinery & Materials(KIMM), Daejeon, Korea Kyungwon Ferrite Ind. Co., Ltd, Gyeonggi, Korea
国际会议
北戴河
英文
86-89
2007-06-06（万方平台首次上网日期，不代表论文的发表时间）