| abstract |
(57) [Abstract] [Problem] More stable operation over a long period of time, To provide a refrigeration cycle using a refrigerant containing hydrofluorocarbon and an ester refrigerating machine oil as working media. A refrigeration compressor 1 for compressing a refrigerant containing hydrofluorocarbon, a condenser 2 for condensing the refrigerant, an evaporator 4 for evaporating the refrigerant, and a capillary 3 for expanding the refrigerant, and a refrigerant and an ester refrigeration oil. Is the working medium of the refrigeration cycle, and the specific compound molded body is arranged in the flow path of the working medium as the acid trapping member. |