Results 21 to 30 of about 6,715 (145)

Computational Fluid Dynamic Analysis of Flow Rate Performance of a Small Piezoelectric-Hydraulic Pump

open access: yesApplied Sciences, 2021
This paper investigates the transient flow rate performance of small piezoelectric-hydraulic pumps. In a previous study, a small piezoelectric hydraulic pump was designed and developed to be applicable to the braking systems of small- and medium-sized ...
Phuc Nguyen Anh   +2 more
doaj   +1 more source

A High-Performance Piezoelectric Micropump with Multi-Chamber in Series

open access: yesApplied Sciences, 2022
Based on the multi-chamber series structure, a piezoelectric micropump with high output performance is proposed in this paper. The proposed micropump is composed of the circular unimorph piezoelectric vibrator, the cantilever check valve, and the pump ...
Xiaopeng Liu   +5 more
doaj   +1 more source

A Dual-Inlet Pump with a Simple Valves System

open access: yesMicromachines, 2023
To ameliorate the deficient output flow performance of the piezoelectric pumps with cantilever valves, a dual-inlet pump with a simple valves system is proposed.
Le Wang, Junming Liu, Xin Wang, Si Chen
doaj   +1 more source

Backstepping Sliding-Mode Control of Piezoelectric Single-Piston Pump-Controlled Actuator

open access: yesActuators, 2021
A piston piezoelectric (PZT) pump has many advantages for the use of light actuators. How to deal with the contradiction between the intermittent oil supplying and position control precision is essential when designing the controller.
Bin Wang, Pengda Ren, Xinhao Huang
doaj   +1 more source

Development and application of a diaphragm micro-pump with piezoelectric device [PDF]

open access: yesMicrosystem Technologies, 2007
In this study, a new type of thin, compact, and light weighed diaphragm micro-pump has been successfully developed to actuate the liquid by the vibration of a diaphragm. The micro-diaphragm pump with two valves is fabricated in an aluminum case by using highly accurate CNC machine, and the cross-section dimension is 5mm x 8mm. Both valves and diaphragm
Ma, H. K.   +5 more
openaire   +4 more sources

Flow pulsation reduction of a single-piston piezoelectric pump based on elastic cavity group and unloading valve

open access: yesAdvances in Mechanical Engineering, 2021
A piston piezoelectric (PZT) pump has many advantages for the use of light actuators. How to deal with the contradiction between the piston amount and oil delivery quality is an essence when designing the pump.
Bin Wang, Nanyue Xu, Rongfei Yang
doaj   +1 more source

Design and Experimental Verification on Characteristics of Valve-Less Piezoelectric Pump Effected by Valve Hole Spacing

open access: yesIEEE Access, 2019
Valve-less piezoelectric pumps possess the advantages of simple structure and absence of electromagnetic interference, which has accordingly drawn widespread attention. In this paper, in order to improve the performance of valve-less piezoelectric pumps,
Jiajian Ji   +6 more
doaj   +1 more source

Design of a Piezoelectric Pump Driven by Inertial Force of Vibrator Supported by a Slotted Beam

open access: yesMachines, 2022
This paper introduces the design, manufacture, dynamic analysis, and experimental results of a piezoelectric pump driven by the inertial force of a vibrator supported by a slotted beam. The piezoelectric vibrator is composed of a mass block, displacement
Yong Zhang   +3 more
doaj   +1 more source

The effect of surface wettability on the performance of a piezoelectric membrane pump

open access: yesAIP Advances, 2018
In this paper, we studied the effect of surface wettability on the bubble tolerance of a piezoelectric membrane pump, by applying the super-hydrophilic or super-hydrophobic surface to the key elements on the pump. Wettability for the flow passage surface
Jiantao Wang   +5 more
doaj   +1 more source

A Novel Artificial Pancreas: Energy Efficient Valveless Piezoelectric Actuated Closed-Loop Insulin Pump for T1DM

open access: yesApplied Sciences, 2020
The objective of this work is to develop a closed-loop controlled insulin pump to keep the blood glucose level of Type 1 diabetes mellitus (T1DM) patients in the desired range.
Alp Kaçar   +2 more
doaj   +1 more source

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