| 摘要 |
<P>PROBLEM TO BE SOLVED: To switch two four-way switch valves by one driving source. <P>SOLUTION: An air conditioning device includes a refrigerant circuit constituted by successively connecting a compressor, an outdoor heat exchanger (15), and an indoor heat exchanger (11). The refrigerant circuit is provided with an ejector (21) and a gas-liquid separator, and further includes a first four-way switch valve and a second four-way switch valve (13b). The second four-way switch valve (13b) is switched to a state that an inlet side of a high-pressure refrigerant of the ejector (21) is connected to the outdoor heat exchanger (15), and an inlet side of a low-pressure refrigerant is connected to the indoor heat exchanger (11), and a state that the inlet side of the high-pressure refrigerant of the ejector (21) is connected to the indoor heat exchanger (11) and the inlet side of the low-pressure refrigerant is connected to the outdoor heat exchanger (15), and switched by the change of the refrigerant pressure of the refrigerant circuit by the switching of the first four-way switch valve. <P>COPYRIGHT: (C)2010,JPO&INPIT |
