Patent ID: 8783060
Filing Date: 2014-07-22
Classification: F25B

Abstract:
1. An ejector-type refrigerant cycle device comprising: a first compression portion which compresses and discharges refrigerant; a radiator which cools high-pressure refrigerant discharged from the first compression portion; a first branch portion which branches a flow of the refrigerant flowing out of the radiator; a high-pressure side decompression portion which decompresses and expands the refrigerant of one side branched at the first branch portion; a second branch portion which branches a flow of the refrigerant of the other side branched at the first branch portion; an ejector which draws refrigerant from a refrigerant suction port by a flow of high-speed jet refrigerant jetted from a nozzle portion in which the refrigerant of one side branched at the second branch portion is decompressed and expanded, and mixes the jet refrigerant and the refrigerant drawn from the refrigerant suction port to be pressurized; a second compression portion which draws the refrigerant flowing from the ejector, and compresses and discharges the drawn refrigerant; a suction side decompression portion which decompresses and expands the refrigerant of the other side branched at the second branch portion; a suction side evaporator which evaporates the refrigerant decompressed and expanded by the suction side decompression portion, and causes the evaporated refrigerant to flow toward the refrigerant suction port; a join portion adapted to join a flow of the refrigerant discharged from the second compression portion and a flow of the refrigerant decompressed and expanded by the high-pressure side decompression portion, and to cause the joined refrigerant to flow toward a suction side of the first compression portion; and an inner heat exchanger which performs heat exchange between the refrigerant downstream of the high-pressure side decompression portion and the refrigerant of the other side branched at the first branch portion.