| 摘要 |
PROBLEM TO BE SOLVED: To suppress the lowering of the energy conversion efficiency of an ejector which decompresses refrigerants in air-liquid mixed states.SOLUTION: An ejector comprises: a body 30 in which there are formed a turning space 30a for turning refrigerants, a decompressing space 30b for decompressing the refrigerants, a sucking passage 13b for sucking the refrigerants from the outside, and a boosting space 30e for mixing the injection refrigerant injected from the decompressing space 30b and the suction refrigerant sucked from the sucking passage, and boosting them; and a conical passage forming member 35 arranged in the body 30. A nozzle passage 13a functioning as a nozzle is formed between an internal peripheral face of a nozzle body 32 forming the decompressing space 30b and an external peripheral face of the passage forming member 35, a homogenizing part 132 for lowering a velocity component of the refrigerant in the turning direction is arranged at a downstream side of a minimum passage area part 30m of the nozzle passage 13a, and a divergent part 133 for gradually expanding a refrigerant passage area is arranged at a downstream side of the homogenizing part 132. |
