中文摘要：

分别运用脉冲射流和恒定射流对液体射流泵内的压力特性进行了试验研究,分析了液体射流泵内的压力变化特性及其对射流泵性能的影响。结果表明,脉冲液体射流泵的压力特性及其性能优于恒定液体射流泵的压力特性及其性能,验证了脉冲射流是提高液体射流泵性能的有效途径。研究结果为深入研究脉冲液体射流泵的基本性能提供了依据。

英文摘要：

The pulsed jet and the steady jet were applied to carry on experimental study on the pressure characteristic of the liquid jet pump.It is analyzed that the pressure variation characteristic of the liquid jet pump and the influence on the performance of jet pump.The results show that the pressure characteristic and performance of the pulsed liquid jet pump is better than the steady liquid jet pump.The results prove that pulsed jet is an effective way to enhance the jet pump＇s efficiency.The research results provide reliable basis for deeply studying pulsed liquid jet pump＇s fundamental performance.