| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an ejector which can suppress the permeation of a temperature-sensing medium at an internal peripheral edge and an external peripheral edge of a diaphragm.SOLUTION: An ejector comprises a body 200 in which a turning space 221 or the like for turning a high-pressure medium flowing from a refrigerant flow-in port 211 is formed, a passage forming member 240 which forms a nozzle passage 224 and a diffuser passage 232a in the body 200, and an annular diaphragm 251 which is arranged so as to surround the passage forming member 240 in the body 200, and connected to the passage forming member 240. An internal peripheral edge and an external peripheral edge of the diaphragm 251 are held while being sandwiched between cages 230, 252b. The diaphragm 251 is constituted by integrally forming a rubber main body formed of a rubber material and a battier film which is lower in the permeability of a temperature-sensing medium than the rubber main body. At this time, the barrier film is arranged at least at a position at a sealing space side of the temperature-sensing medium out of the rubber main body constituting the internal peripheral edge and the external peripheral edge of the diaphragm.</p> |
