may be contained the inflow controller 171 may be provided at one side of the storage refrigerant pipe 152 positioned at an inflow side of the refrigerant storage 170 and the discharge controller 172 may be provided at one side of the storage refrigerant pipe 152 positioned at a discharge side of the refrigerant storage 170 each of the inflow controller 171 and the discharge controller 172 may be configured as an apparatus capable of selectively blocking the refrigerant flowed into or discharged from the refrigerant storage 170 for example such as an opening closing valve each of the flow rate limiters 173 and 174 may be configured as an apparatus capable of limiting the flow speed of the refrigerant flowed into or discharged from the refrigerant storage 170 to less than a predetermined speed for example such as a capillary tube the flow rate limiters 173 and 174 include an inflow side flow rate limiter 173 provided at an inflow side of the refrigerant storage 170 to limit the flow speed i e flow rate of the refrigerant flowed into the refrigerant storage 170 and a discharge side flow rate limiter 174 provided at a discharge side of the refrigerant storage 170 to limit the flow rate of the refrigerant discharged from the refrigerant storage 170 in one embodiment the inflow controller 171 the inflow side flow rate limiter 173 the discharge controller 172 and the discharge side flow rate limiter 174 may be valves capable of continuously controlling the degree of opening for example such as eevs respectively one end.