Journal of the Korean Society of Manufacturing Technology Engineers (한국생산제조학회지)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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Design and Fabrication of PZT Disc Actuated Micro Pump for Bio-Applications (I): Optimal Design of Ring-shaped Flab Valve Module

바이오용 압전디스크방식 마이크로 펌프 설계 및 제작(I) -링형 플랩밸브 모듈의 최적설계-

  • 김형진 (강원대학교 기계메카트로닉스공학과 대학원) ;
  • 서영호 (강원대학교 기계메카트로닉스공학과) ;
  • 김병희 (강원대학교 기계메카트로닉스공학과)
  • Received : 2011.07.08
  • Accepted : 2011.12.29
  • Published : 2012.06.15
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Abstract

Though a micro pump is a crucial element in miniaturized bio-fluidic systems or drug delivery systems, it has some intrinsic disadvantages such as backward flow, pulsation of flow, low repeatability and producibility, and high cost. To overcome these limitation, a PZT disc actuated micro pump including a novel ring-shaped multi-flap check valve is introduced. To enhance the performance of the micro pump, the static behaviour of flap valve module and the micro fluidic behavior of fluids are numerically modelled and analyzed. As results of the numerical analysis, the optimal dimension and configuration of the ring-shaped multi flap valve are $1{\times}0.05$ mm and 2 (inlet side)${\times}1$ (outlet side) type. The obtained maximum flow rates and flow resolution are about 90 ml/min and 30 ${\mu}l$/stroke respectively.

Keywords

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