Theory Analysis And Experiment Research On Spout Piezoelectric Micro-pump

The technology of water-jet propulsion is the special shipping moving forward form of making use of the applied force produced by the high speed fluid jetted form the water jet and pushing forward the ships.Because the water jet propulsion has a lot of characteristics, such as the strong ability of resisting vacuole, the small accessory bodies,the good protective function,the low noise,the simple and reliable drive jear ,the strong ability of suiting the varying duty, the good operating motion location .In the recent several decades the researches of the countries in the world develop a lot of studying work about all kinds of factorsof influencing the water-jet propulsion,and cause the technology of the water-jet propulsion greatly develop and improve .The piezoelectric pump is the new type fluid drive device of making use of piezoelectric element as the power supply .The piezoelectric pump has such characteristics as the compact structure ,no need of drive jear ,no interference of electromagnetic ,etc. For the past few years it gained wide concern in the development and application of the microminiature fluid transportation.The text firstly analyzes the recent situation of the piezoelectric body is driving and the wate-jet propulsion technology ,and then put forward that we can make the water-jet piezoelectric pump by using piezoelectric elements as the power supply ,and discuss the design idea of the new type piezoelectric driving water-jet propulsion device,and provide the theory evidence about the application of the piezoelectric driving system in the technology of the water-jet propulsion, and the exploiting of that in the new type of the microminiature water-jet propulsion device.PZT piezoelectric actuator body is used for energy conversion devices have a new drive, using the piezoelectric element produced more than 20 fluid pump on the end of the 1970s has carried out abroad, such as University, Qinghua University launched a domestic nuclear silicon micro-pump valve research. 1998 Jilin University, piezoelectric actuator technology research proposed in the piezoelectric pump fluid entrances and exits, no different cone valve piping based piezoelectric pump structure, and carry out the research work. Other universities have a piezoelectric pump research work, at home and abroad in the piezoelectric pump fluid is the main purpose of the transmission fluid, the pump output piezoelectric properties of the points is to improve the pump pressure and output flow and output of precision fluid control and affect the ability of the piezoelectric pump output. In this paper, and the pressure of the study was to use EFI pump driven by a piezoelectric pump driving cavity to pump out the liquid jet.