Digitally-controlled driving power supply for dual-active-valve piezoelectric pump

Sun, Yeming; Wang, Junyao

doi:10.1007/s00542-018-4101-1

Cited by 16 publications

(3 citation statements)

References 13 publications

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“…The pump delivered a flow rate of 3.4 cc s −1 at 1 kHz actuation frequency. Yeming and Junyao worked on a digitally-controlled driving power supply for a dual-activevalve piezoelectric pump [26]. The active valves in the design are composed of valve diaphragms, rectangular piezoelectric vibrators, guide rods and supporting frames.…”

Section: Introductionmentioning

confidence: 99%

Design, development, and testing of active valve piezo-hydraulic pump

Nayak,

Rao

2024

J. Micromech. Microeng.

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Valves play a major role in rectifying the fluid flow through piezo-hydraulic pumps, which may be active or passive. Passive valves operate due to changes in the fluid pressure whereas active valves are operated through control signals. This paper presents a novel design of an active valve chamber assembly for a piezo-hydraulic pump. It is a novel design since none of the research publications has addressed the application of a Flexurally amplified piezoelectric actuator (FAPA) for valve actuation in active valve chamber assembly. The piezo-hydraulic pump design is done using Solid Edge design software. FAPA’s are used for pumping and valve actuation. Structural analysis with experimental verification for the valve chamber component is presented. The valve opening and the pumping displacement are mathematically modeled in MATLAB Simulink software. Also, mathematical simulations for pump flow rates at different actuation frequencies and voltage are discussed. The piezo-hydraulic pump components are fabricated and assembled with the actuators. Experimental investigations on the flow rate performance of the active valve piezo-hydraulic pump are carried out with changing frequency and voltage amplitude of actuators. The interpretation of results is done by comparing the experimental and simulation results. During experiments, the pump delivered a maximum flow rate of 4.5mL/min at 140V when actuated at 0.25Hz actuation frequency.

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Section: Introductionmentioning

confidence: 99%

Design, development, and testing of active valve piezo-hydraulic pump

Nayak,

Rao

2024

J. Micromech. Microeng.

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“…Based on their working principles and structures 11 , PE micropumps can be classified into piezoelectric peristaltic pumps, valve-based PE pumps, and valveless PE pumps 12 , 13 . The PE peristaltic pumps have complex structures and rely on multiple vibrators to realize the creep effect in the flow direction.…”

Section: Introductionmentioning

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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“…The existing check valve can be divided into an active valve and a passive valve. The structure of the active valve is complex, and difficult to control (Yeming and Junyao, 2018). The passive valve is simple and widely used.…”

Section: Introductionmentioning

confidence: 99%

Development of a novel piezoelectric-actuated inertial pump using bionic valve

Ding

Chen

et al. 2021

Journal of Intelligent Material Systems and Structures

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Sampling fluids from the small-diameter deep pipeline is a challenging problem. In this paper, a very simple, piezoelectric-actuated inertial pump (PIP) is developed using a bionic valve to solve these problems. The PIP consists of simple components, including a cantilever beam piezoelectric actuator, a hard tube, and a bionic valve made of silicone. The fluid is driven by the inertial force generated in the vibration process of the tube. A new bionic valve inspired by a heart valve has been designed which has the advantages of small flow resistance and large flow area. The authors described the working principle of PIP in detail, established the flow characteristics model of the bionic valve, and used COMSOL Multiphysics to analyze the characteristics of the bionic valve. By comparing the response characteristics of the bionic valve with different tilt angles, the optimal Angle was obtained. Finally, the experimental and simulation results were compared, and the basic performance of PIP was tested. The experimental results showed that: When the tilting angle was 45° and the valve hole diameter was 6 mm, when the voltage was 98 V and the frequency was 24.5 Hz, the maximum output flow of the piezoelectric pump was 170.25 ml/min.

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Digitally-controlled driving power supply for dual-active-valve piezoelectric pump

Cited by 16 publications

References 13 publications

Design, development, and testing of active valve piezo-hydraulic pump

Design, development, and testing of active valve piezo-hydraulic pump

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

Development of a novel piezoelectric-actuated inertial pump using bionic valve

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