| 摘要 |
This ejector refrigeration cycle is provided with a bypass channel (39) for guiding refrigerant that is from the outlet side of an evaporator (14) and that is taken in from a refrigerant intake port (31b) of an ejector (13) to the intake port side of a compressor (11) by bypassing a diffuser channel (13c) of the ejector (13). Furthermore, there is disposed a differential pressure valve (40) serving as a bypass flow rate regulating device for regulating the bypass flow rate (Gb) of the refrigerant passing through the bypass channel (39), and an expanded portion (39a) that has a gradually increasing channel area is formed in the bypass channel (39) at the furthest downstream portion of the refrigerant flow. In addition, during low load operation, the differential pressure valve (40) increases the bypass flow rate (Gb) in order to use the suction action of the compressor (11) to cause refrigerant to flow into the evaporator (14), which is connected to the upstream side of a refrigerant intake port (31c). |
