Results 91 to 100 of about 191 (125)
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Pseudo-Resonance Phenomenon of Valveless Piezoelectric Pump
Journal of Fluids and Structures, 2023Tao Zou, Zhenzhen Gui, Jianhui Zhang
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Development and Performance Comparison of Valveless Piezoelectric Pumps With Asymmetrical Channels
Sensors and Actuators A: Physical, 2020Abstract The piezoelectric pumps are the power source of piezoelectric water cooling systems, and the output performances of the piezoelectric pump determine the overall characteristics of the water cooling system. In order to improve the output effectiveness of the valveless piezoelectric pump, a valveless piezoelectric pump with asymmetrical ...
Zhongjie Li, Jun Huang
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Research on the performance of a valveless piezoelectric pump with a herringbone bluffbody
Review of Scientific Instruments, 2023Aiming to improve the output performance of a valveless piezoelectric pump, this article presents a valveless piezoelectric pump with a herringbone bluffbody. The bluffbody is herringbone shaped and distributed in a tapered chamber. The tapered chamber and the bluffbody create a large reverse resistance in the chamber, thus effectively mitigating the ...
Dahai Yu +5 more
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Recent trends in structures and applications of valveless piezoelectric pump—a review
Journal of Micromechanics and Microengineering, 2022Abstract Piezoelectric actuator-driven valveless pump has been studied for a long time in theory and structure for the features of high precision, fast response, low power consumption, compact size, reliability for long-term use and high performance.
Yi Hou +5 more
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A Micromixer Driven by Two Valveless Piezoelectric Pumps With Multi-Stage Mixing Characteristics
Sensors and Actuators A: Physical, 2022Abstract A novel micromixer driven by the valveless piezoelectric pump with multi-stage mixing characteristics is proposed in this paper. Two valveless piezoelectric pumps are integrated into the micromixer, and the inlet and outlet microchannels of the micropumps are composed of the diffuser/nozzle tubes and Tesla tubes.
Xiaodong Sun, Liu Guojun, Luntao Dong
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Development of a valveless piezoelectric pump with vortex diodes
Journal of Micromechanics and Microengineering, 2019Abstract The cut-off capacity of the fluid diode determines the output performance of the valveless piezoelectric pump with flow resistance difference tubes. In this study, a valveless piezoelectric pump with vortex diodes is proposed, which utilizes the vortex diodes as internal valves with no moving parts.
Jun Huang +4 more
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Performance analysis of valveless piezoelectric pump with dome composite structures
Review of Scientific Instruments, 2019Valveless piezoelectric pumps are used in the field of drug delivery. However, the output performances are limited by severe reflux. This article is aimed at reducing the reflux and improving the output performances. We use different pressure loss coefficients in the forward and reverse directions and design dome composite structures within the chamber
Lipeng He +4 more
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Research on Double-Outlet Valveless Piezoelectric Pump With Fluid Guiding Body
Sensors and Actuators A: Physical, 2020Abstract In order to address the performance limitations of valveless piezoelectric pumps caused by backflow, a double-outlet valveless piezoelectric pump with a fluid guiding body to weaken liquid backflow energy has been designed. The pump chamber introduces a streamlined fluid guiding body incorporated with a double-outlet structure.
Lipeng He, Guangming Cheng
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A High Flow-Rate Single-Chamber Valveless Piezoelectric Pump With Airfoil Baffles
Sensors and Actuators A: Physical, 2023Jianhui Zhang
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Research on the valveless piezoelectric pump with Y-shape pipes
Frontiers of Mechanical Engineering in China, 2007A piezoelectric pump with its Y-shape elements is presented. Two Y-shape pipes are fixed outside the chamber serving as an inlet and outlet, with the chamber and a piezoelectric vibrator being the actor. The pump has the potential to be miniaturized and integrated.
Jianhui Zhang, Jizhuang Lu, Qixiao Xia
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