| 摘要 |
A defrosting gas is provided in a refrigeration system by compressing a gaseous refrigerant and evaporating controlled amounts of liquid refrigerant carried by the gaseous refrigerant, the latent heat of evaporation being used to defrost the evaporator. The defrosting gas is conducted from the compressor discharge outlet to the evaporator inlet by way of the condenser and the receiver, whereby the accumulation of migratory refrigerant in the receiver is prevented to ensure a sufficient supply of refrigerant in the defrosting circuit throughout the defrosting cycle. Means are provided for operating the system in such a manner. |
