| 摘要 |
An ejector and an ejector cycle device are provided to introduce refrigerant to an evaporator even though suction performance of an ejector is lowered, thereby keeping cooling capacities and simply controlling refrigerant flow rates in the entire cycle. An ejector cycle device includes a compressor(10), and a heat emitter(20) for emitting high temperature heat discharged from the compressor. An ejector(30) has a nozzle part(31) for converting pressure energy of the high pressure refrigerant at a lower part of the heat emitter to speed energy to carry out decompression and expansion for the refrigerant, and a suction hole(33) for inhaling the refrigerant from the nozzle part. A branch path(55) is branched from a refrigerant path between the heat emitter and the nozzle part and coupled with the suction hole. A throttle unit(40) is disposed on the branch path for decompression of the refrigerant. An evaporator(50) is disposed on the branch path at a lower side of refrigerant flow of the throttle unit for evaporating the refrigerant. |
