中文摘要：

该文运用数值仿真与实验的方法研究了进口压力与出口压力对真空发生器性能的影响。结果表明,进口压力与出口压力对其真空度的影响较大,且存在一个最佳临界值使得其真空度最大。耗气量随着进口压力的增大而增大,但其随着出口压力的增大基本保持不变。

英文摘要：

The paper researches on the influence of vacuum generator＇s characteristics in different inlet pressure and outlet pressure by using numerical simulation and experimental method. The result indicated that inlet pressure and outlet pressure have greatly effect on maximum vacuum., and have an optimal critical value at which maximum vacuum.is biggest. Gas consumption is increased by increasing the inlet pres- sure, but it remain unchanged by increasing the outlet pressure.