A serial piezoelectric gas pump with variable chamber height

Ji, Jiajian; Qian, Chaoping; Chen, Song; Wang, Chenyang; Kan, Junwu; Zhang, Zhonghua

doi:10.1016/j.sna.2021.112912

Cited by 4 publications

(1 citation statement)

References 18 publications

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“…Therefore, the performance of the pump is the best when the inlet and outlet diameters are 0.4 mm and 1.2 mm, respectively. The upper chamber height has little influence on the displacement of the PE actuator because the space above the actuator is substantially larger than the amplitude of the actuator 28 . However, the gas flowrate increases from 50 to 57 mL/min and decreases to 54.8 mL/min when the upper chamber height increases from 0.8 to 1.3 mm (Fig.…”

Section: Structural Optimization Of the Piezoelectric Micropumpmentioning

confidence: 99%

Analytical and experimental study of a valveless piezoelectric micropump with high flowrate and pressure load

Xuan

et al. 2023

Microsyst Nanoeng

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Miniaturized gas pumps based on electromagnetic effect have been intensively studied and widely applied in industries. However, the electromagnetic effect-based gas pumps normally have large sizes, high levels of noises and high power consumption, thus they are not suitable for wearable/portable applications. Herein, we propose a high-flowrate and high-pressure load valveless piezoelectric micropump with dimensions of 16 mm*16 mm*5 mm. The working frequency, vibration mode and displacement of the piezoelectric actuator, the velocity of gas flow, and the volume flowrate of the micropump are analyzed using the finite element analysis method. The maximum vibration amplitude of the piezoelectric actuator reaches ~29.4 μm. The output gas flowrate of the pump is approximately 135 mL/min, and the maximum output pressure exceeds 40 kPa. Then, a prototype of the piezoelectric micropump is fabricated. Results show that performance of the micropump is highly consistent with the numerical analysis with a high flowrate and pressure load, demonstrated its great potential for wearable/portable applications, especially for blood pressure monitoring.

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Section: Structural Optimization Of the Piezoelectric Micropumpmentioning

confidence: 99%