| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a refrigerating device can suppress functional degradation of a compressor and the like even when a refrigerant represented by a molecular formula: C<SB>3</SB>H<SB>m</SB>F<SB>n</SB>(m=1-5, n=1-5, m+n=6), and having one double bond in a molecular structure is used. <P>SOLUTION: A refrigerant circuit 110 is composed of the compressor 111, two heat exchangers 113, 118, and an ejector 114. The refrigerant is a single refrigerant of the refrigerant, or a mixed refrigerant including the single refrigerant, and circulated in the refrigerant circuit 110. The ejector 114 has a driving flow channel 114a, a suction flow channel 114b, and a jetting flow channel 114c, and rises a suction pressure of the compressor 111. In the driving flow channel 114a, a high-pressure refrigerant from the heat exchanger 113 flows. In the suction flow channel 114b, a low-pressure refrigerant from the heat exchanger 118 sucked by the high-pressure refrigerant flowing in the driving flow channel 114a, flows. In the jetting flow channel 114c, the low-pressure refrigerant flowing in the suction flow channel 114b and the high-pressure refrigerant flowing in the driving flow channel 114a are joined and jetted. <P>COPYRIGHT: (C)2010,JPO&INPIT |
