Patent ID: 8534093

Claim:
A unit for an ejector-type refrigeration cycle, the unit 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 configured as an integrated structure, and 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 wherein each of the first and the second evaporator includes a heat exchange core having a plurality of refrigerant tubes in which refrigerant flows to perform heat-exchange with air passing therethrough, and an upper tank having a distribution space that distributes refrigerant to the plurality of refrigerant tubes and a collection space that collects refrigerant from the plurality of refrigerant tubes, the upper tank of the first evaporator being adjacent the upper tank of the second evaporator; and a separated tank located between the adjacent upper tanks of the first and the second evaporators and extending in a longitudinal direction of the adjacent upper tanks that accommodates therein the ejector that includes a refrigerant inlet for introducing refrigerant, and a first, a second and a third through hole penetrating a side wall of the separated tank, wherein a downstream side of the first evaporator in a refrigerant flow is configured to be coupled to a refrigerant suction side of a compressor, a downstream side of the second evaporator is configured to be coupled to the refrigerant suction port of the ejector, the separated tank communicates with the distribution space of the upper tank of the second evaporator via the first through hole, communicates with the distribution space of the upper tank of the first evaporator via the second through hole, and communicates with the collection space of the upper tank of the second evaporator via the third through hole serving as the suction port.