期刊论文详细信息
ROBOMECH Journal
Optimization of orifice position in particle-excitation valve for proportional flow control
Tomomi Yamaguchi1  Daisuke Hirooka1  Naomichi Furushiro1  Koichi Suzumori2  Takefumi Kanda3 
[1] Department of Mechanical Engineering, Kansai University;Graduate School of Engineering, Tokyo Institute of Technology;Graduate School of National Science and Technology, Okayama University;
关键词: Proportional flow control valve;    Pneumatic valve;    Pneumatic actuator;    PZT;    Flow control valve;   
DOI  :  10.1186/s40648-017-0093-3
来源: DOAJ
【 摘 要 】

Abstract This paper reports an improvement of the particle-excitation flow control valve. The valve that we have designed in previous reports can control air flow, using particle excitation by piezoelectric resonance, and has the following advantages: small size, lightweight, high response and continuous airflow control. However, in our previous models, the relationship between the driving voltage and the flow quantity was nonlinear. In this report, we improved the valve to realize proportional flow control. The valve consists of the orifice plate, that has some orifices, and steel particles to seal the orifices and piezoelectric transducer. It controls air flow by the voltage applied to the transducer. For proportional flow control, it is important to adjust the orifice position adequately. In this report, we optimized the orifice position, considering resonance condition of the valve. We designed the experimental prototype using a bolt-clamped Langevin type transducer and decided orifice position. And we evaluated its vibration properties and flow-rate characteristics. The experimental results showed that our designed prototype can proportionally control airflow.

【 授权许可】

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