Results 1 to 10 of about 95 (85)
Development of PZT Actuated Valveless Micropump [PDF]
Sensors, 2018 A piezoelectrically actuated valveless micropump has been designed and developed. The principle components of this system are piezoelectrically actuated (PZT) metal diaphragms and a complete fluid flow system.
Fathima Rehana Munas +7 more
doaj +4 more sources
Actuators, 2023 The valveless micropump based on dual synthetic jets is a potential fluid pumping device that has the ability to transport fluid continuously. In order to improve the performance of this device, a novel valveless continuous micropump based on dual ...
Zhenbing Luo
exaly +3 more sources
Achieving Full Forward Flow of Valveless Piezoelectric Micropump Used for Micro Analysis System
Actuators, 2022 The valveless piezoelectric micropump has the advantages of simple structure, high precision and low cost, which can realize the directional transport of micro-fluid and wildly be applied in a micro analysis system. However, backflow at the outlet cannot
Weishan Chen, Biao Liu
exaly +3 more sources
An Electromagnetically-Actuated All-PDMS Valveless Micropump for Drug Delivery
Micromachines, 2011 This paper presents the fabrication process of a single-chamber planar valveless micropump driven by an external electromagnetic actuator. This micropump features a pair of micro diffuser and nozzle elements used to rectify the fluid flow, and an elastic
Farid Amirouche
exaly +3 more sources
Development of Diffuser/Nozzle Based Valveless Micropump
Journal of Fluid Science and Technology, 2008 A valveless micropump was realized with a diffuser/nozzle shaped channel and a variable volume actuator which produces an oscillating flow. One-way flow may be realized in the nozzle direction since the pressure loss in a nozzle channel is lower than ...
Koji Miyazaki +2 more
exaly +3 more sources
Fabrication of a Valveless Micropump With Polyimide Membrane
IEEJ Transactions on Sensors and Micromachines, 2010 A valveless/diffuser micropump with a thin polyimide membrane was designed, fabricated using surface micromachining and characterized. The micropump was actuated by deforming the membrane with alternating air pressure. The micropump chamber had the depth of 525 μm, and the diameter was 7 mm.
Yasushiro Nishioka +2 more
exaly +2 more sources
Modeling of Valveless Micropumps [PDF]
Numerical Heat Transfer, Part A: Applications, 2009 There are two difficulties encountered in modeling valveless micropumps using lumped-element methods. The pressure loss coefficient for fluidic diodes used in valveless pumps to rectify flow depends on the flow direction. A problem arises in choosing the proper loss correlation because the flow direction is not known a priori.
Yeng-Yung Tsui, Shin-En Wu
openaire +1 more source
Characterization of Electromagnetic Valveless Micropump [PDF]
TELKOMNIKA (Telecommunication Computing Electronics and Control), 2017 This paper presents an electromagnetically-actuated micropump for microfluidic application. The system comprises two modules; an electromagnetic actuator module and a diffuser module. Fabrication of the diffuser module can be achieved using photolithography process with a master template and a PDMS prepolymer as the structural material.
Rusli, M. Q. A. +2 more
openaire +3 more sources
Microsystems & Nanoengineering, 2023 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 ...
Jiafeng Ni +9 more
doaj +1 more source
High-Efficiency 3D-Printed Three-Chamber Electromagnetic Peristaltic Micropump
Micromachines, 2023 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
He Chen +4 more
doaj +1 more source