Development of a piezoelectric pump with ball valve structure

Qing, Pan; Jiang, Haiyang; Huang, Ziliang; Huang, Bin; Li, Ruijun; Wang, Biao; Feng, Zhihong

doi:10.1177/1045389x21994179

Cited by 4 publications

(2 citation statements)

References 29 publications

(33 reference statements)

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“…The check valve is controlled by a separate piezoelectric piece to achieve electric opening and closing. Pan et al [15] proposed a piezoelectric hydraulic device with an active valve. The influence of the valve timing on the output performance is studied.…”

Section: Introductionmentioning

confidence: 99%

Design and research of a valve-based piezoelectric pump with low forward resistance and high reverse shutoff

Zhang

Wang

et al. 2023

J. Micromech. Microeng.

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This paper proposes, designs, manufactures and experimentally studies a wedge valve piezoelectric pump driven by a double displacement amplifier vibrator (DDAV). A novel wedge valve is designed, manufactured and analysed, and the static performance of the wedge valve is tested. The test results show that it has less forward resistance and high reverse shutoff. The DDAV and pump body are designed, and the test experimental platform is built. Results indicate that the static opening pressure of the wedge valve is 0.27 kPa, and the reverse shutoff pressure can reach 200 kPa. When the driving voltage is 700 Vpp and the driving frequency is 425 Hz, the maximum flow rate is 491.2 ml/min and the maximum output pressure is 160 kPa.

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Section: Introductionmentioning

confidence: 99%

Design and research of a valve-based piezoelectric pump with low forward resistance and high reverse shutoff

Zhang

Wang

et al. 2023

J. Micromech. Microeng.

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“…Active valves require an additional control unit and power consumption, while passive valves operate by the pressure difference across the valve. The output performances of piezoelectric pumps using passive valves are highly dependent on the design of the valves, and various types of passive valves have been proposed, such as the cantilever valve [ 29 , 30 ], umbrella valve [ 31 ], ball valve [ 32 ], and bridge valve [ 20 , 33 ].…”

Section: Introductionmentioning

confidence: 99%

Matching the Optimal Operating Mode of Polydimethylsiloxane Check Valves by Tuning the Resonant Frequency of the Resonator in a Piezoelectric Pump for Improved Output Performance

et al. 2022

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This paper proposes to improve the output performance of a piezoelectric pump by matching the resonant frequency of the resonator to the optimal operating mode of bridge-type polydimethylsiloxane (PDMS) check valves. Simulation analyses reveal that the side-curling mode of the PDMS valve is conducive to liquid flow and exhibits a faster frequency response compared with the first bending mode. The first bending resonant frequency of a beam-type piezoelectric resonator was tuned close to the side-curling mode of the PDMS valve by adjusting the weight of two mass blocks installed on both ends of the resonator, so that both the resonator and the valve could work at their best conditions. Experiments were conducted on a detachable prototype piezoelectric pump using PDMS valves with three different lengths. The results confirm that the peak flowrate at the resonant point of the pump reaches its maximum when the resonant frequencies between the resonator and the valve are matched. Maximum peak flowrates of 88 mL/min, 72 mL/min and 70 mL/min were achieved at 722 Hz, 761 Hz and 789 Hz, respectively, for diaphragm pumps using five-, four- and three-inlet-hole PDMS valves, under a driving voltage of 300 Vpp.

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Research of piezoelectric pump with a vortex linear valve structure

Yan,

Sun

2023

Physics of Fluids

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In this article, a piezoelectric pump with vortex shaped linear valve structure (PPVSLVS) is proposed on the basis of characteristics of flexible materials. Changes in the working state conversion between “valve-based” and “valve-less” of the PPVSLVS can be realized by adjusting driving conditions. The principle of the working state conversion between “valve-based” and “valve-less” of the PPVSLVS is elaborated for the design of the structure of the PPVSLVS. The prototype of the PPVSLVS and the piezoelectric pump with cardiac valve-like structure is fabricated by 3D printing technique, and the corresponding experiments are also conducted. The experimental results demonstrate that the PPVSLVS is ascribed to be a valve-less piezoelectric pump when the driving voltage is less than 140 V, while the PPVSLVS is ascribed to be a valve-based piezoelectric pump when the driving voltage is above 140 V. When the working state of the PPVSLVS is converted from “valve-less” to “valve-based,” the pump flow rate of this pump will be changed from one peak to double peak. Simultaneously, when the driving voltage of the pump is 180 V at 12 Hz, the pump flow rate reaches a maximum value of 44.3 mL/min. Compared with the piezoelectric pump with a cardiac valve-like structure, under the same driving conditions, the pump flow rate of the PPVSLVS is remarkably increased. When the driving frequency is set as 12 and 24 Hz, the average pump flow rate is improved by 107% and 21.3%, respectively. The distance between the free ends of the valve will affect the working states and flow rate of the PPVSLVS. This study contributes to the application of piezoelectric pumps in artificial hearts.

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Development of a piezoelectric pump with ball valve structure

Cited by 4 publications

References 29 publications

Design and research of a valve-based piezoelectric pump with low forward resistance and high reverse shutoff

Design and research of a valve-based piezoelectric pump with low forward resistance and high reverse shutoff

Matching the Optimal Operating Mode of Polydimethylsiloxane Check Valves by Tuning the Resonant Frequency of the Resonator in a Piezoelectric Pump for Improved Output Performance

Research of piezoelectric pump with a vortex linear valve structure

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