| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a refrigerating cycle device capable of maximizing enthalpy increasing effect in an evaporator and pressure loss reducing effect of a low pressure-side refrigerant passage, and achieving a sufficient heating capacity at a low outside air temperature. <P>SOLUTION: This refrigerating cycle device 1A includes a refrigerant circuit 2 provided with a supercooling heat exchanger 23, a bypass passage 3 bypassing the supercooling heat exchanger 23, and a control device 4 controlling a main expanding means 24 in the refrigerant circuit 2 and a bypass expanding means 31 in the bypass passage 3. The bypass expanding means 31 is controlled so that a bypass-side outlet temperature reaches a saturation temperature under a pressure of the refrigerant sucked to a compressor 21, and a degree of superheat at an outlet of the evaporator 25, calculated on the basis of the evaporator outlet temperature keeps a predetermined prescribed degree of superheat or less. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
