| 摘要 |
<p>An air conditioner (1) has a two-stage compression type compression mechanism (2), a heat source heat exchanger (4), a utilization heat exchanger (6), an intermediate cooler (7), an intermediate-cooler bypassing pipe (9), and a suction return pipe (92). The intermediate cooler (7) is mounted in an intermediate refrigerant pipe (8) for causing refrigerant discharged from a front stage compression element (2c) to be sucked into a rear stage compression element (2d) and functions as a cooler for the refrigerant discharged from the front stage compression element (2c) and sucked into the rear stage compression element (2d). The intermediate-cooler bypassing pipe (9) is connected to the intermediate refrigerant pipe (8) so as to bypass the intermediate cooler (7). The suction return pipe (92) is a refrigerant pipe for interconnecting the intermediate cooler (7) and the suction side of the compression mechanism (2).</p> |
