A Novel Pumping Mechanism of Using Ultrasound Induced Pressure and Cavitations for Micro-Pump Development

利用超声波诱导压力和空化的新型泵送机制用于微型泵的开发

• 批准号: 24656151
• 负责人: NAKANISHI Tameo
• 金额: $ 2.58万
• 依托单位: Yamagata University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2012
• 资助国家: 日本
• 起止时间: 2012-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-24656151/
• 关键词: 超音波ポンプ; 揚水メカニズム; キャビテーション雲

We have developed a new pumping method of using ultrasound induced pressure differences and cavitations. An ultrasonic vibrating surface is fabricated at the bottom of a water tank. Standing waves of half wavelength are formed between the vibrating surface and the water surface. A vertical rising pipe of small inner diameter of 0.37mm is inserted in the water in a depth of 1/4 wavelength. Micro-bubble cloud is formed around the rising pipe inlet, which suppresses the negative pressure in the vibrating cycle and results in continuous pumping of water. The mechanisms and fundamental characteristics have been explored by experimental investigations. A pumping pressure of over 23kPa and a maximum flow rate of 10 ml/min were achieved. A prototype of micro-pump has been developed.

我们开发了一种利用超声波引起的压力差和空化的新泵送方法。在水箱底部制作超声波振动面。振动面与水面之间形成半波长的驻波。将一根内径为0.37mm的小垂直上升管插入水中1/4波长的深度。上升管入口周围形成微气泡云，抑制振动循环中的负压，从而实现连续抽水。通过实验研究探索了其机制和基本特征。泵压超过23kPa，最大流量为10ml/min。微型泵的原型已经开发出来。

项目成果

A Novel Pumping Mechanism of Using Ultrasound Induced Pressure and Cavitations

一种利用超声波诱导压力和空化的新型泵送机制

• 发表时间: 2013
• 作者: Tameo Nakanishi;Yuki Numazawa
• 通讯作者: Yuki Numazawa