Proposal of pump using ultrasonic transducer and opposing surface

H. Shinada, Y. Ishino, M. Hara, D. Yamaguchi, M. Takasaki, T. Mizuno

Research output: Contribution to journalConference articlepeer-review


Conventional pumps include sliding parts and there is a limit of life time due to friction and wear. To solve this problem, a number of pumps using ultrasonic vibration have been proposed. In the present study, we found an occurrence of pump effect when an opposing block faces ultrasonically vibrating surface with small gap. According to the measurement results of gauge pressure, when circumference of the opposing block is tapered, fluid was discharged from the gap of two surfaces. On the other hand, when center of the block is tapered, fluid was sucked in the gap. This paper reports experimental results of the pump effect.

Original languageEnglish
Pages (from-to)76-79
Number of pages4
JournalPhysics Procedia
Publication statusPublished - 2015
Externally publishedYes
EventICU International Congress on Ultrasonics, ICU 2015 - Metz, France
Duration: May 11 2015May 14 2015


  • Opposing block
  • Squeeze film
  • Taper
  • Transducer
  • Ultrasonic pump

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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