Refrigeration system having a compressor driven by a magnetic coupling

A refrigeration system comprising:

• a compressor which includes a hermetically sealed housing and a compression mechanism positioned inside the housing;
• a condenser which is fluidly connected to the compressor;
• an evaporator which is fluidly connected between the condenser and the compressor;
• and
• a magnetic coupling which includes a drive coupling half positioned outside the housing and a driven coupling half positioned inside the housing and separated from the drive coupling half by a separation wall portion of the housing, the drive coupling half being connectable to a prime mover and the driven coupling half being connected to the compression mechanism;
• wherein in operation of the refrigeration system, the compressor compresses a gaseous refrigerant, the gaseous refrigerant is condensed into a liquid refrigerant in the condenser, and the liquid refrigerant is evaporated in the evaporator;
• and
• wherein the refrigeration system further comprises a fluid conduit for communicating a portion of the liquid refrigerant from the condenser to an inside surface of the separation wall portion;
• whereby during operation of the refrigeration system, the liquid refrigerant from the condenser is evaporated on or adjacent the inside surface of the separation wall portion to thereby cool the separation wall portion.