| 摘要 |
A vapor compression system (10) having a line (19) for flowing heat transfer fluid (34), a compressor (12) and a condenser (14) both connected with the line (19). The vapor compression system (10) also has an expansion device (1 8) connected with the line (19) for expanding the heat transfer fluid (34). The expansion device (18) has a housing (40) defining an orifice (44, 46, 62, 66 , 74, 76) with at least two positions, wherein the orifice is effectively made larger in the first position than in the second position. The vapor compression system (10) also has an evaporator (16) connected with the line (19) for transferring heat from ambient surroundings to the heat transfer fluid (34).
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