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Article

Research on a Piezoelectric Pump with Flexible Valves

School of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou 510006, China
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Author to whom correspondence should be addressed.
Academic Editors: Jörg Wallaschek, Jens Twiefel and Yongke Yan
Appl. Sci. 2021, 11(7), 2909; https://doi.org/10.3390/app11072909
Received: 28 December 2020 / Revised: 14 March 2021 / Accepted: 17 March 2021 / Published: 24 March 2021
Imitating the structure of the venous valve and its characteristics of passive opening and closing with changes in heart pressure, a piezoelectric pump with flexible valves (PPFV) was designed. Firstly, the structure and the working principle of the PPFV were introduced. Then, the flexible valve, the main functional component of the pump, was analyzed theoretically. Finally, an experimental prototype was manufactured and its performance was tested. The research proves that the PPFV can achieve a smooth transition between valved and valveless by only changing the driving signal of the piezoelectric (PZT) vibrator. The results demonstrate that when the driving voltage is 100 V and the frequency is 25 Hz, the experimental flow rate of the PPFV is about 119.61 mL/min, and the output pressure is about 6.16 kPa. This kind of pump can realize the reciprocal conversion of a large flow rate, high output pressure, and a small flow rate, low output pressure under the electronic control signal. Therefore, it can be utilized for fluid transport and pressure transmission at both the macro-level and the micro-level, which belongs to the macro–micro combined component. View Full-Text
Keywords: piezoelectric pump; flexible valve; valve; valveless piezoelectric pump; flexible valve; valve; valveless
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MDPI and ACS Style

Huang, W.; Lai, L.; Chen, Z.; Chen, X.; Huang, Z.; Dai, J.; Zhang, F.; Zhang, J. Research on a Piezoelectric Pump with Flexible Valves. Appl. Sci. 2021, 11, 2909. https://doi.org/10.3390/app11072909

AMA Style

Huang W, Lai L, Chen Z, Chen X, Huang Z, Dai J, Zhang F, Zhang J. Research on a Piezoelectric Pump with Flexible Valves. Applied Sciences. 2021; 11(7):2909. https://doi.org/10.3390/app11072909

Chicago/Turabian Style

Huang, Weiqing, Liyi Lai, Zhenlin Chen, Xiaosheng Chen, Zhi Huang, Jietao Dai, Fan Zhang, and Jianhui Zhang. 2021. "Research on a Piezoelectric Pump with Flexible Valves" Applied Sciences 11, no. 7: 2909. https://doi.org/10.3390/app11072909

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