Unit for ejector-type refrigeration cycle, and refrigeration cycle device using the same

A unit for an ejector-type refrigeration cycle, comprising:

• an ejector that includes a nozzle portion configured to decompress and expand refrigerant, and a refrigerant suction port from which refrigerant is drawn by a high-velocity refrigerant flow jetted from the nozzle portion, the ejector being configured to mix the refrigerant injected from the nozzle portion with the refrigerant drawn from the refrigerant suction port so as to discharge the mixed refrigerant from an outlet of the ejector;
• a first evaporator and a second evaporator connected in parallel to a downstream side of the outlet of the ejector in a refrigerant flow, and configured to evaporate the refrigerant discharged from the outlet of the ejector;
• and
• a refrigerant distributor configured to distribute the refrigerant discharged from the outlet of the ejector to a side of the first evaporator and a side of the second evaporator, wherein
• a downstream side of the first evaporator in a refrigerant flow is configured to be coupled to a refrigerant suction side of the compressor,
• a downstream side of the second evaporator is configured to be coupled to the refrigerant suction port of the ejector,
• the ejector and the refrigerant distributor are connected to each other such that the refrigerant discharged from the outlet of the ejector directly flows into the refrigerant distributor,
• the refrigerant distributor includes a first pipe-shaped portion having a straight shape extending on an axial line of the nozzle portion, through which the refrigerant flowing into the refrigerant distributor flows toward the second evaporator, and a second pipe-shaped portion through which the refrigerant flowing into the refrigerant distributor flows toward the first evaporator, and
• the second pipe-shaped portion protrudes from an outer peripheral surface of the first pipe-shaped portion in a direction perpendicular to the straight shape of the first pipe-shaped portion.