| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve problems found, when a single refrigerant of C<SB>3</SB>H<SB>m</SB>F<SB>n</SB>refrigerant is used, by using a refrigerant mixture of a proper composition ratio to which a HFC refrigerant is added, or by using a refrigerant mixture in which a specific refrigerant excluding HFC refrigerant is mixed, in a refrigerating apparatus that uses the refrigerant including a refrigerant represented by a molecular formula 1:C<SB>3</SB>H<SB>m</SB>F<SB>n</SB>(wherein m and n each is integers of 1-5, with m+n=6), and having one double bond in the molecular structure. <P>SOLUTION: This refrigerating apparatus 20 employs the refrigerant mixture including 70-94 mass% of C<SB>3</SB>H<SB>m</SB>F<SB>n</SB>refrigerant represented by molecular formula 1: C<SB>3</SB>H<SB>m</SB>F<SB>n</SB>(wherein m and n each is an integer of 1-5, with m+n=6) and having one double bond in the molecular structure and a HFC refrigerant of 6-30 mass%, a refrigerant mixture including the C<SB>3</SB>H<SB>m</SB>F<SB>n</SB>refrigerant and a specific refrigerant, e.g., a hydrocarbon, or a refrigerant mixture including 2,3,3,3-tetrafluoro-1-propene and carbon dioxide. <P>COPYRIGHT: (C)2010,JPO&INPIT |
