高压容腔卸压曲线的研究

Analysis of Releasing Curve for High Pressure Chamber

提出了使油液以无冲击、振动和气蚀的最大动量变化量排出高压容腔的卸压思想。通过理论分析与公式推导,得到了卸压过程中高压容腔压力、卸压阀开口面积、卸压时间三者之间的关系。基于负载敏感原理,对卸压阀阀芯结构进行了初步设计,分析表明:此阀口可满足快速、无冲击卸压的要求。

A pressure relief method was proposed with which the high pressure fluid was discharged with maximum momentum variable quantity in less impact,less vibration and non-cavitation. By theoretical analysis and formula derivation,the relationships a-mong the pressure of chamber,the throttle area of pressure relief valve,the pressure relief time were obtained. Based on the load-sens-ing theory,the structure of pressure relief valve core was preliminarily designed. The result shows that the valve port can meet the pres-sure relief requirement of rapid,non-impact.