REFRIGERATION SYSTEM HAVING DUAL COMPRESSORS AND EITHER A SINGLE EVAPORATOR OR DUAL EVAPORATORS

摘要

A refrigeration system having either a single evaporator or dual evaporators where a flash chamber is used with first and second compressor stages. The flash chamber separates the refrigerant mixture from a high-stage capillary into liquid and gas, where the liquid is directed to a low-stage capillary and the gas is directed back to the first compressor. Additionally, the flash chamber may also be used for intercooling the gas going from the second compressor to the first compressor. For dual evaporator systems, this system is especially good for compartments where a first compartment requires a very low evaporator temperature and a second compartment requires a controllable evaporator temperature.