| 摘要 |
A refrigeration system is disclosed which utilizes an expansion engine (110) in the condensate line (38) of the condenser (28). The liquid leaving the condenser (28) drives the expansion engine (110) when it passes therethrough. The expansion engine (110), in turn, drives a compressor (130) which compresses gas from the reservoir (44) to the condenser (28). The discharge of the liquid refrigerant from the condenser is controlled by a micro-controller circuit (56). The micro-controller circuit increases the flow when the temperature difference between the liquid refrigerant (36) and the ambient air (34) flowing across the condenser (28) is below a predetermined value and decreases the flow when the temperature difference is above a predetermined value. A liquid pump (61) is used to elevate the pressure of the liquid refrigerant leaving the receiver (44). |
