Abstract
In order to improve the output performance of the elastic valve piezoelectric pump, the relationship between the output performance and the disc parameters was studied. Firstly, the structure and working principle of the elastic valve piezoelectric pump were introduced. Secondly, by analyzing the flow resistance of the discs, the flow rate equation of the piezoelectric pump was derived. Finally, the influence of the geometric parameters of the discs on the flow rate was studied through several experiments. The results show that the pump can realize the free transition between valved state and valveless state by adjusting the frequency. When the initial angle is 12°, the length is 5 mm and the height is 1.9 mm, the maximum flow rate of the pump can reach 78 mL/min. Reducing the length, increasing the height, or choosing the proper initial angle can increase the flow rate. Because the pump can realize the self-adaptive transformation of valved and valveless according to the vibrator driving frequency, the application field of the piezoelectric pump can be expanded.
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Acknowledgements
This work was supported by the Graduate-Ability-Promotion Plan of Guangzhou University under Grant 2019GDJC-M20 and Guangdong Basic and Applied Basic Research Foundation under Grant 2019B1515120017. The authors also gratefully acknowledge the helpful comments and suggestions of the reviewers, which have improved the presentation.
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Huang, W., Lai, L., Chen, X. et al. Influence of disc parameters on output performance of elastic valve piezoelectric pump. Microsyst Technol 27, 3049–3057 (2021). https://doi.org/10.1007/s00542-020-05076-1
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DOI: https://doi.org/10.1007/s00542-020-05076-1