Patent ID: 8713962

Claim:
A refrigerating cycle apparatus, comprising: a first circuit configured by a compressor that compresses a refrigerant; a radiator that radiates and cools said refrigerant discharged from said compressor; an ejector that decompresses and expands said refrigerant output from said radiator and converts an expansion energy to a pressure energy to increase a suction pressure of said compressor; and a gas-liquid separator that separates said refrigerant output from said ejector into a gas refrigerant and a liquid refrigerant, being circularly connected in order by piping, a second circuit configured such that between a liquid refrigerant outlet of said gas-liquid separator and a suction section of said ejector is connected by piping via a first throttle device that decompresses said liquid refrigerant output from said liquid refrigerant outlet and an evaporator that evaporates said liquid refrigerant output from said first throttle device, a second throttle device that is provided on a piping path between the outlet of said radiator and the outlet of said first throttle device, and an opening and closing valve provided on the piping path between the suction section of said ejector and the outlet of said ejector, wherein while in a bypass cycle operation using said second throttle device, no pressure recovery operation of said refrigerant is performed by said ejector, in an ejector cycle operation using said first throttle device, pressure recovery operation of said refrigerant is performed by said ejector.