Oil management system for a compressor

摘要

The invention relates to an oil management system (10) for a compressor (12) in a refrigeration system comprising: an oil temperature sensor (18); a heater (22) arranged to heat oil in a crank case (24) of the compressor (12); and a controller (20) operatively associated with the temperature sensor (18) and the heater (22), the controller arranged to control operation of the heater on the basis of ambient air temperature (16) and oil temperature (18) to maintain the oil temperature within a range Tmax ‰¥ R ‰¥ Tmin where Tmax > Tmin.