Multi-directional switching valve chip with the rotary mechanism (2nd report, proposal of automatic switching mechanism using the solenoid)

Tadahiro Hasegawa, Kenichiro Nakashima, Fumiyuki Omatsu, Koji Ikuta

Research output: Contribution to journalArticle


We have developed the 10-way micro switching valve chip for micro dispenser system. This chip succeeded to switch ten outlets from one inlet without dead volume under high leakage pressure (> 700 kPa). The valve was operated manually to confirm the switching principle with the rotary mechanism. As the next step, the micro solenoid drive switching valve chip was developed for simple and quick operation. Positioning and detection of present location at the outlet were achieved with the latch mechanism without necessity of positioning. To build the solenoid into the chip, the valve design parameters (the height of the silicon rubber ring and the compression force to the rotor) affecting the valve performance (the leakage pressure and the rotation force of the rotor) were optimized.

Original languageEnglish
Pages (from-to)2101-2107
Number of pages7
JournalNihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
Issue number7
Publication statusPublished - 2007 Jul 1



  • 10-way micro switching valve
  • Automatic switch
  • Biochemical IC family
  • Micro-TAS
  • Rotary mechanism

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

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