| 摘要 |
PROBLEM TO BE SOLVED: To prolong cooling duration time of an air conditioner for a vehicle which is made favorable in respect of cost and energy consumption, by using a fluid pump.SOLUTION: As a fluid pump, in a refrigeration cycle A of the air conditioner for a vehicle, for sucking a refrigerant from a storage regenerator 70 provided at a downstream side of an evaporator 50, and discharging the refrigerant to the evaporator 50, there is used a jet pump 80 having: a diffuser 82 whose end part on a small diameter side is connected to a suction flow path 13; and a nozzle 84 for jetting, from an intermediate part of the diffuser 82, a high pressure refrigerant flowing in from a drive flow route 12, converting pressure energy of the high pressure refrigerant into speed energy, and decompressing and expanding the refrigerant. The jet pump sucks the refrigerant from the suction flow path 13 by drive flow formed by a spout of the refrigerant from the nozzle 84, and can discharge the refrigerant from a discharge port 81 provided on a large diameter side of the diffuser 82. |
