• Proceedings of the KSME Conference
• /
• 2005.11a
• /
• pp.200.2-200.2
• /
• 2005

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
• /
• 2011.10a
• /
• pp.48-49
• /
• 2011

• Proceedings of the Korean Society of Precision Engineering Conference
• /
• 2004.10a
• /
• pp.250-253
• /
• 2004

This study deals with the microvalve, which is composed of the multilayer bender type PZT actuator, actuator controller and microvalve body. The object of this study is to develope the microvalve with multilayer bender type PZT actuator. In order to achieve this object, prototype PZT actuator and microvalve were suggested and manufactured. Also, the performance of this model was evaluated through the experiments.

• Transactions of The Korea Fluid Power Systems Society
• /
• v.2 no.3
• /
• pp.6-11
• /
• 2005

A household gas valve is used for flow control of LPG(Liquefied Petroleum Gas) or LNG(Liquefied Natural Gas) of which pressure is about $200mmH_2O(\fallingdotseq\;0.0196[bar])$. Currently, two kinds of valves such as rotary type and button type are widely used in many applications. But, these valves have some problems that they are not controllable and reliable. Piezo actuation combined with modem microelectronics provides a reliable, quiet, low energy, infinitely adjustable gas valve. In this paper, gas valve using piezo actuator which are bimorph and a circle type was studied. Also, Prototype for gas valve was manufactured and characteristics of the prototype gas valve were analyzed.