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公开(公告)号：US08210830B2
公开(公告)日：2012-07-03
申请号：US11997126
申请日：2006-07-10
IPC分类号： F04B17/00
CPC分类号： F04B43/046 , F04B53/1077
摘要： 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.
摘要翻译： 通道形成为在扩散器入口侧具有窄通道的非对称扩散器形状的通道和扩散器出口侧的宽通道。 窄通道与设置有压电元件的可变容积室连通。 通过致动压电元件产生的振动导致可变容积室中的流体的压力变化，以产生喷嘴流，这又导致流体从宽通道平滑流动到窄通道。
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公开(公告)号：US20100158720A1
公开(公告)日：2010-06-24
申请号：US11997126
申请日：2006-07-10
CPC分类号： F04B43/046 , F04B53/1077
摘要： A valveless micropump for transforming a pressure variation of fluid in a volume variation chamber (8) into an oscillatory flow of fluid (10) by means of a piezoelectric element (7), making the fluid (10) to flow smoothly in channels (5, 6). A channel (2) is formed as an asymmetric diffuser-shaped channel (12) having a narrow channel (5) on the diffuser inlet (3) side and a wide channel (6) on the diffuser outlet (4) side, and the volume variation chamber (8) provided with the piezoelectric element (7) is communicated with the narrow channel (5). Vibration generated by applying a voltage to the piezoelectric element (7) causes a pressure variation of the fluid in the volume variation chamber (8) to generate a nozzle flow. The fluid (10) is made to flow smoothly from the wide channel (6) to the narrow channel (5) by the nozzle flow.
摘要翻译： 一种无阀微型泵，用于通过压电元件（7）将体积变化室（8）中的流体的压力变化转换成流体（10）的振荡流，使流体（10）在通道（5） ，6）。 通道（2）形成为在扩散器入口（3）侧具有窄通道（5）和扩散器出口（4）侧上的宽通道（6）的不对称扩散器形状的通道（12），并且 设置有压电元件（7）的体积变化室（8）与窄通道（5）连通。 通过向压电元件（7）施加电压产生的振动导致体积变化室（8）中的流体的压力变化产生喷嘴流。 流体（10）通过喷嘴流动从宽通道（6）平滑地流动到窄通道（5）。
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