A Study on High-Output Resonance-Driven Piezoelectric Micropumps Using Active Check Valves

Autor:	Kazuhiro Yoshida, Shinichi Yokota, Jung-Ho Park, Takeshi Seto, Chikara Ishikawa, Kunihiko Takagi
Rok vydání:	2004
Předmět:	Engineering business.product_category General Computer Science Check valve business.industry Acoustics Electrical engineering Micropump Resonance Piezoelectricity Bi directional flow Piezoelectric actuators Electrical and Electronic Engineering business Shuttle valve
Zdroj:	Journal of Robotics and Mechatronics. 16:171-177
ISSN:	1883-8049 0915-3942
DOI:	10.20965/jrm.2004.p0171
Popis:	A novel high-output resonance-driven piezoelectric micropump using two active check valves in place of conventional passive check valves used in inlet and outlet is proposed. It actively controls opening/closing of check valves using piezoelectric actuator synchronizing with expansion/contraction of pump chamber. A prototype micropump is fabricated with an effective size of 17×8×1mm3. When tap water is used as the working fluid, pumping characteristics of the fabricated pump are experimentally investigated using an adequate timing control for valve opening/closing. From experimental results, it is ascertained that optimal values of the phase shift for the voltage to drive the pump chamber to realize a miniaturized but powerful micropump are 15° in inlet check valve and 195° in outlet. Based on obtained results, a sheet active shuttle valve that has a unified valve body for inlet and outlet check valves is newly proposed. A micropump with an effective size of 10×10×10mm3is fabricated and the basic characteristics are experimentally investigated.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::806813db86fb2a92b9cef00218e2c03d https://doi.org/10.20965/jrm.2004.p0171 Zobrazit plný text záznamu