| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to regulate the quantity of a refrigerant circulated in a refrigerant circuit. SOLUTION: A refrigerant quantity regulator 15 is provided in parallel with an expansion valve 14 so as to diverge and store part of the refrigerant flowing towards the expansion valve 14, and thereby the quantity of the refrigerant circulated in the refrigerant circuit is regulated. The refrigerant quantity regulator 15 comprises a refrigerant tank 21, a capillary tube 22 provided on a top of the refrigerant tank 21 and an inlet of the expansion valve 14 so as to allow the part of the refrigerant flowing towards the expansion valve 14 to expand and guide the same to the tank 21, and a refrigerant regulating valve 25 for regulating the quantity of the liquid refrigerant that is stored in the refrigerant tank 21 provided on the refrigerant pipe connecting a bottom of the tank 21 and an outlet of the expansion valve 14 with each other to be returned to the refrigerant circuit. |
