A refrigeration system comprising a compressor for compressing a refrigerant, a condenser for condensing refrigerant to a liquid, an evaporator for evaporating liquid refrigerant from the condenser to a gas, an inner control loop for optimizing a supply of liquid refrigerant to the evaporator, and an...http://www.google.com.hk/patents/US7599759?utm_source=gb-gplus-share專利 US7599759 - Method and apparatus for optimizing refrigeration systems
