压缩机进气阀部分行程顶开时缸内气体压力的计算  

ANALYSIS OF GAS PRESSURE IN THE CYLINDER WHEN INLET VALVE BEING PRESSED OFF DURING PARTIAL STROKE

作　　者：吴荣仁[1] 刘生礼[1] 陆君毅[1] 

机构地区：[1]浙江大学,杭州310027

出　　处：《低温工程》2000年第5期37-40,共4页Cryogenics

摘　　要：活塞式压缩机在采用进气阀部分行程顶开来调节气量时 ,缸内气体经历了变质量气体压缩过程。对这一过程进行了理论分析 ,导出了缸内气体压力变化的微分方程。根据此微分方程的数值解可以理论计算出所调节的气量。这在实验上得到了验证 ,并且理论计算与实际计算之间误差在 5 %以内[1] 。The gas compression in the cylinder is a variable mass gas compressing one when the method of press off inlet valve during partial stroke is applied to regulate gas This article analyzes this process and derives the differential equation to describe the change of the gas in the cylinder The regulated delivery can be calculated according to the differential equation It has been verified by the experiment and the error is less than 5%

关 键 词：活塞式压缩机 气量调节 气体压力计算 

分 类 号：TB652[一般工业技术—制冷工程]