Patent ID: 7770412

Claim:
An integrated unit for a refrigerant cycle device, comprising: an ejector that has a nozzle part which decompresses refrigerant, and a refrigerant suction port from which refrigerant is drawn by a high-speed refrigerant flow jetted from the nozzle part, wherein the refrigerant jetted from the nozzle part and the refrigerant drawn from the refrigerant suction port are mixed and discharged from an outlet of the ejector; an evaporator located to evaporate the refrigerant to be drawn into the refrigerant suction port or the refrigerant discharged from the outlet of the ejector, a connection block located at an end portion of the tank in the tank longitudinal direction; and a throttle mechanism for decompressing refrigerant; wherein: the evaporator includes a plurality of tubes defining refrigerant passages through which refrigerant flows, a tank that is disposed at one end side of the tubes for distributing refrigerant into the tubes and for collecting the refrigerant from the tubes, wherein the tank extends in a tank longitudinal direction that is parallel to an arrangement direction of the tubes; the end portion of the tank has a hole portion for inserting the ejector; the ejector is inserted into an inner space of the tank from the hole portion; the connection block is provided with a refrigerant inlet for introducing the refrigerant, and a refrigerant outlet for discharging the refrigerant; the hole portion is provided in the connection block; the hole portion is provided separately from the refrigerant inlet and the refrigerant outlet; the connection block has a recess portion recessed from an inner surface to form a refrigerant path through which the refrigerant inlet communicates with an inlet of the nozzle part; the recess portion is provided to define a branch passage branched from the refrigerant path; and the branch passage communicates with an inlet side of the throttle mechanism.