FLUID INJECTION EJECTOR AND EJECTOR REFRIGERATION CYCLE

摘要

Refrigerant flowing out from a fluid injection ejector (12) dissipates heat in a radiator (13), and liquid phase refrigerant that has dissipated heat in the radiator (13) is caused to flow into an injection refrigerant channel (122a) of the fluid injection ejector (12). Moreover, discharged refrigerant from a compressor (11) that takes in refrigerant flowing out from a low pressure-side evaporator (17) is caused to flow into an inflow refrigerant channel (121a) of the fluid injection ejector (12). Furthermore, an ejector in which injection refrigerant to be injected from the injection refrigerant channel (122a) into a gas-liquid mixing portion (122d) is injected to the outer peripheral side of inflow refrigerant flowing from the inflow refrigerant channel (121a) into the gas-liquid mixing portion (122d) is used as the fluid injection ejector (12). Thus, the ejector efficiency of the fluid injection ejector can be sufficiently improved.