The valve stem and the valve seat are separated under the effect of the driving mechanism when dispensing; the space formed when the valve stem departed from the valve seat is filled by fluid under the effect of the feeding pressure; after that, compressed air is released; under the action of the stroke and preloading governor mechanism, the fluid around the valve stem and in the valve seat flows to the nozzle with a certain speed; finally when the valve stem and the valve seat are fully contacted and closed, the fluid stops flowing to the nozzle; the fluid flowing out of the nozzle is separated from the fluid in the valve seat to form the droplet with a certain speed.
点胶时，在驱动机构的作用下阀杆与阀座分离，流体在供料压力作用下填充由阀杆离开阀座形成的间隙，接着压缩空气释放，在行程和预压调节机构的作用下阀杆周围以及阀座内流体以一定速度流向喷嘴，最后当阀杆和阀座完全接触闭合时，流体停止向喷嘴流动，流出喷嘴的流体与阀座内流体分离，形成具有一定速度的液滴。
The hardware circuit includes the signal gathering of gasoline nozzle, gasfired pressure, water temperature and oxygen sensor, multi-oscillator conjuncted with 555 timer, and also the designing of extending and driving circuit of singlechip periphery program memory.
其硬件电路包括汽油喷嘴信号、燃气压力信号、水温信号、氧传感器信号、点火信号和转速信号的采集；以及555定时器接成的多谐振荡器、单片机外围程序存储器的扩展和驱动电路的设计。
The experimental results indicate that the location of the driving nozzle and the convergent section angle has an obvious influence on the maximal mass flow rate of the conveyed material, and this effect has relation to the back pressure of the pneumatic conveying system.
试验研究结果表明，气体喷嘴位置和收缩段的收缩角对气固喷射器的最大固体输送量均有较大的影响。
The separation distance between the nozzle and the resonance tube and the feed pressure of the driving gas were the main considerations. The validity of N-S equations, the distribution of flow parameters and aerodynamic force and the relation between axial force and separation distance have been analyzed.
实验中主要考虑喷嘴与谐振管间的分离距离以及供气压力的变化。分析了流场参数分布、气动力分布特性及轴向力随分离距离变化情况。
An ejector test facility was established to investigate the multi-nozzle supersonic ejector performance, and hot rocket exhaust gases were used as primary and secondary driving fluids.
建立了多喷嘴超声速引射器试验台，采用燃气作为一、二次流驱动工质对多喷嘴超声速引射器进行了试验研究，重点考察了引射器的压力匹配问题。
Multi-objective Optimization for the Driving Mechanism of an Axial-symmetric Vectoring Exhaust Nozzle
轴对称推力矢量喷管驱动机构的多目标优化设计研究
Setting up the configuration bifurcation equation of the axisymmetric vectoring exhaust nozzle and utilizing the homotopy tracing approach, the configuration bifurcation behaviors of the AVEN driving parallel mechanism and the driving kinematic chains of the divergent flaps were analyzed. It is found that whether deflecting or not, the turning points will exist corresponding to the bifurcation parameter of the area exhaust nozzle, and the turning points will disappear corresponding to the bifurcation parameters of the deflecting angle.
通过建立轴对称推力矢量喷管的构型分岔方程，运用连续同伦方法，研究了AVEN装置驱动机构和扩张调节片导引机构的构型分岔特性，发现，无论推力矢量喷管是否发生偏转，当以喷口面积作为分岔参数时，AVEN装置都存在转向点奇异位置；当以矢量偏转角为分岔参数时，AVEN装置不存在奇异位置。
Through the controls of geometric dimension of micro-nozzle and driving frequency to obtain the volume of droplets in the grade of pico to femto litre, which is applicable to make high density micro-array.
通过微喷嘴几何尺寸控制和驱动频率控制获得从飞升到皮升级样点体积，可以用于制作高密度的微阵列。