A VALVELESS DIFFUSER NOZZLE-BASED FLUID PUMP

Authors
STEMME E STEMME G
Citation
E. Stemme et G. Stemme, A VALVELESS DIFFUSER NOZZLE-BASED FLUID PUMP, Sensors and actuators. A, Physical, 39(2), 1993, pp. 159-167
Citations number
13
Categorie Soggetti
Engineering, Eletrical & Electronic","Instument & Instrumentation
Journal title
Sensors and actuators. A, Physical → ACNP
ISSN journal
09244247
Volume
39
Issue
2
Year of publication
1993
Pages
159 - 167
Database
ISI
SICI code
0924-4247(1993)39:2<159:AVDNFP>2.0.ZU;2-W
Abstract
A new valveless fluid pump has been designed and tested. The pump cons ists of two fluid diffuser/nozzle elements on each side of a chamber v olume with an oscillating diaphragm. The vibrating diaphragm produces an oscillating chamber volume, which together with the two fluid-flow- rectifying diffuser/nozzle elements, creates a one-way fluid flow. A m icropump prototype with a chamber diameter of 19 mm with conical diffu ser/nozzle elements has been built and tested. The maximum liquid flow rate is 16 ml/min and the maximum pump pressure is 2 m H2O. The pump frequency is of the order of 100 Hz.