| abstract |
Refrigerator oils, in particular refrigeration oils for hydrofluorocarbon refrigerants, comprising a base oil composed of oxygen-containing organic compounds such as polyalkylene glycols and polyesters comprising fluorinated silicone oils having a kinematic viscosity of at least 500 mm 2 / sec at 25 ° C. It is described. A lubrication method of a refrigeration system is also described that includes lubricating a compression refrigeration system using the refrigeration oil.n n n By using this refrigerator oil, the foaming phenomenon during boiling of the refrigerant dissolved in the refrigerator oil can be effectively suppressed. In addition, in a refrigeration system using this refrigerator oil, effective lubrication can be achieved. |