EJECTOR AND EJECTOR TYPE REFRIGERATING CYCLE

摘要

PROBLEM TO BE SOLVED: To provide an ejector type refrigerating cycle, improving nozzle efficiency ηnoz of an ejector in simple constitution to enough improve COP (coefficient of performance).;SOLUTION: A gas phase refrigerant injecting means includes a compressor discharging branch part 12 for causing branching of a flow of a compressor 11 discharged refrigerant and injection pipes 143a, 143b which guide a very small flow of branching gas phase refrigerant to the downstream side of a nozzle inflow port 141b of the ejector 14 and the upstream side of a throat part 141c. A refrigerant in the non-equilibrium state where a liquid phase refrigerant and a gas phase refrigerant are mixed is decompressed and expanded at a nozzle part 141. Thus, the nozzle efficiency ηnoz of the ejector 14 can be improved in simple constitution to enough improve COP.;COPYRIGHT: (C)2010,JPO&INPIT