Manipulate microfluid with an integrated butterfly valve for micropump application

Tang, Zhiyong; Shao, Xiufeng; Huang, Jianze; Yao, Jinrong; Ding, Guifu

doi:10.1016/j.sna.2020.111965

Cited by 5 publications

(3 citation statements)

References 34 publications

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“…However, electromagnetic actuators can provide driving force at low voltage, and Huawei Yu et al proposed a magnetically driven micropump [ 7 ]. An electromagnetic actuator provides several paramount benefits for a micropump which have a low actuating voltage, fast response time, high field energy density, and wider operational range [ 8 ]. However, it has the disadvantage of a large volume and a complicated manufacturing process.…”

Section: Introductionmentioning

confidence: 99%

High-Efficiency 3D-Printed Three-Chamber Electromagnetic Peristaltic Micropump

Chen

Miao²,

Lu³

et al. 2023

Micromachines

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This paper describes the design and characteristics of a three-chamber electromagnetic-driven peristaltic micropump based on 3D-printing technology. The micropump is composed of an NdFeB permanent magnet, a polydimethylsiloxane (PDMS) film, a 3D-printing pump body, bolts, electromagnets and a cantilever valve. Through simulation analysis and experiments using a single chamber and three chambers, valved and valveless, as well as different starting modes, the results were optimized. Finally, it is concluded that the performance of the three-chamber valved model is optimal under synchronous starting conditions. The measurement results show that the maximum output flow and back pressure of the 5 V, 0.3 A drive source are 2407.2 μL/min and 1127 Pa, respectively. The maximum specific flow and back pressure of the micropump system are 534.9 μL/min∙W and 250.4 Pa/W, respectively.

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Section: Introductionmentioning

confidence: 99%

High-Efficiency 3D-Printed Three-Chamber Electromagnetic Peristaltic Micropump

Chen

Miao²,

Lu³

et al. 2023

Micromachines

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“…They can quickly switch between different operating states and achieve instantaneous fluid control. This characteristic is crucial in applications requiring rapid response and real-time adjustment, with broad prospects in microfluidic transport fields such as medical microinfusion [ 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 ], fuel cells [ 19 , 20 , 21 , 22 , 23 , 24 ], cooling systems [ 25 , 26 , 27 , 28 , 29 ], micromanipulation [ 30 , 31 ], and surface coating of fan blades [ 32 ]. In recent decades, researchers have extensively studied piezoelectric pumps and incorporated them into their products.…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of a Cardioid Flow Tube Valveless Piezoelectric Pump for Medical Applications

Wang,

Zhang,

Gui

et al. 2023

Sensors

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Piezoelectric pumps play an important role in modern medical technology. To improve the flow rate of valveless piezoelectric pumps with flow tube structures and promote the miniaturization and integration of their designs, a cardioid flow tube valveless piezoelectric pump (CFTVPP) is proposed in this study. The symmetric dual-bend tube design of CFTVPP holds great potential in applications such as fluid mixing and heat dissipation systems. The structure and working principle of the CFTVPP are analyzed, and flow resistance and velocity equations are established. Furthermore, the flow characteristics of the cardioid flow tube (CFT) are investigated through computational fluid dynamics, and the output performance of valveless piezoelectric pumps with different bend radii is studied. Experimental results demonstrate that CFTVPP exhibits the pumping effect, with a maximum vibration amplitude of 182.5 μm (at 22 Hz, 100 V) and a maximum output flow rate of 5.69 mL/min (at 25 Hz, 100 V). The results indicate that a smaller bend radius of the converging bend leads to a higher output flow rate, while the performance of valveless piezoelectric pumps with different diverging bends shows insignificant differences. The CFTVPP offers advantages such as a high output flow rate, low cost, small size for easy integration, and ease of manufacturing.

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“…The common desired characteristics of these pumping systems include (i) flow control, (ii) a wide range of flow rates, (iii) an appropriate back pressure and ideally (iv) low-cost. Some micro pumps employ moving mechanical parts, typically an oscillating diaphragm actuated by a number of mechanisms, including hand power [10,11], electrostatic [12], electromagnetic [13][14][15][16], piezoelectric [17][18][19], thermo-pneumatic [20] forces or rotary motion of vanes and gears [21]. Even though diaphragms made of soft material are utilized most of the time, [12][13][14][15][16][17][18][19]22], thermoplastic elastomers were also implemented, which enabled production of the device by common mass production techniques [23,24].…”

Section: Introductionmentioning

confidence: 99%