%A CHENG Guang-ming, LI Peng, YANG Xiao-dong, KAN Jun-wu %T Design for piezoelectric pump with active valve %0 Journal Article %D 2007 %J Journal of Drainage and Irrigation Machinery Engin %R 10.3969/j.issn.1674-8530.2007.05.001 %P 1-4 %V 25 %N 5 %U {http://zzs.ujs.edu.cn/pgjx/CN/abstract/article_1373.shtml} %8 2007-09-25 %X The working principle of piezoelectric pump with active and passive valves were demonstrated.The differences between the two were compared.The potential uses of piezoelectric pump with active valve was described as well. Based on the working principle,the piezoelectric pump with active valve was designed and fabricated which used the piezoelectric vibrators as the prime mover and the inlet and outlet valves.The driving signal of piezoelectric pump was also studied.Finally,the performance of the designed pump was tested.The results show that the maximum flow rate of the designed pump is 40 ml/min and output pressure is 12.25 kPa.piezoelectric pump;piezoelectric vibrator;active valve;passive valve