【摘要】 通过对２Ｆ４．８型活塞式制冷压缩机改用Ｒ２２工质后热力过程的计算机模拟，获得气阀结构参数对压缩机热力性能的影响数据，并对气阀结构和排气压力过高影响压缩机启动等问题提出改进方案。试验和实际运行效果很好，可供制造厂和使用单位参考。更多还原

【Abstract】 By mean of computer simulation of thermodynamic process in the 2F4.8 compressor with R22 as refrigerant,the influence of basic valve parameters on the performance of the compressor is studied.The improvements on the valve structure and on the high discharge pressure in starting process are performed and the experiment and operation show a satisfactory result.更多还原