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Single-Nozzle Micropumps

[+] Author Affiliations
X. Y. Huang, S. S. Wang, C. Yang

Nanyang Technological University, Singapore

Paper No. ICNMM2009-82038, pp. 717-721; 5 pages
  • ASME 2009 7th International Conference on Nanochannels, Microchannels, and Minichannels
  • ASME 2009 7th International Conference on Nanochannels, Microchannels and Minichannels
  • Pohang, South Korea, June 22–24, 2009
  • Conference Sponsors: Nanotechnology Institute
  • ISBN: 978-0-7918-4349-9 | eISBN: 978-0-7918-3850-1
  • Copyright © 2009 by ASME


We demonstrate a new design of valveless micropump with a single nozzle and driven by piezoelectric disk. The nozzle is formed by a planar channel with an acoustic resonator profile, and the pump is fabricated by lamination of layers made of polymethyl-methacrylate (PMMA) and dry adhesives. Both experimental characterization and numerical simulation show that pump works well at low frequency in terms of relatively high pressure head and flowrate. Moreover, the pumping flow direction can be altered by simply adding buffer areas at the inlet and outlet. The pump is suitable for microfluidic integrations.

Copyright © 2009 by ASME
Topics: Nozzles , Micropumps



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