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该文提出了利用双元工质在降低压缩比的同时降低蒸发温度的新型喷射制冷循环,由于双元工质低温域蒸发产生的双相流压缩过程也得到了圆满的解决;并且对R11取代物进行了研究.文中介绍了R123,R141b,R123/R141b,R123/R141b和R141b/R142b的实验及数据分析结果.实验结果显示了新型喷射制冷循环的优越性.“,”In this paper, the alternative to R11was discussed firstly. Then the possibility of binary nonazeotropy refrigerants used the jet refrigeration cycle was analyzed for reducing the compression ratio and evaporating temperature simultaneously. The liquid-vapor compression generated by the evaporation in low temperature region of the binary miXtures was solved by means of the ejector easily. The experiments of thermodynamic cycle in jet refrigeration system had been completed in the different binary miXtures of R123/R142b、R123/R141b and R141b/R142b. The data coming from theory and experiment descried the advantage of obtaining the low temperature with the lower compression ratio because the proper binary refrigerants was run in the same jet refrigeration system.