A channel is formed as an asymmetric diffuser-shaped channel having a narrow channel on a diffuser inlet side and a wide channel on a diffuser outlet side. The narrow channel is communicated with a variable volume chamber which is provided therein with a piezoelectric element. Vibration generated by actuation of the piezoelectric element causes a pressure variation of a fluid in the variable volume chamber to generate a nozzle flow which in turn causes a smooth flow of the fluid from the wide channel to the narrow channel.
申请公布号
US8210830(B2)
申请公布日期
2012.07.03
申请号
US20060997126
申请日期
2006.07.10
申请人
MIYAZAKI KOJI;TANAKA SEIICHI;SHIMOOKA HIROYUKI;TSUKAMOTO HIROSHI;KYUSHU INSTITUTE OF TECHNOLOGY