Electromagnetically Actuated Valveless Micropump in Polymer-Technology

Description

n this contribution the design and the implementation of a low-cost and easy-to-manufacture recipro- cating micropump is presented. The pump uses electromagnetic actuation with hydrodynamic nozzle- diffuser valves comprising no moving parts. First, the idea and the principle of membrane-based recipro- cating micropumps are introduced. Then, considerations are discussed how to design the electrodynamic actuator which was devised for applications with planar coils using a neodymium permanent magnet and a highly permeable iron-cobalt alloy core. Furthermore, a theoretical investigation of the nozzle- diffuser valves including an optimization to achieve maximum flow rates is presented. It was possible to find a solution where the optimum opening angle of the diffuser can be expressed as a function only depending on the dimensionless Reynolds number Re. Theoretical results are discussed and compared to experimental data.

Period	29 Jun 2010
Event title	The 12h Mechatronics Forum Biennial International Conferernce
Event type	Conference
Location	SwitzerlandShow on map