| 摘要 |
PROBLEM TO BE SOLVED: To provide a refrigeration device wherein a heat absorbing means functioning in different temperature zones selectively is installed in a refrigerating cycle, capable of making a high efficiency operation without dropping the efficiency in any of the temperature zones selected. SOLUTION: The refrigeration device is equipped with a compressor 1, a radiator 2, a decompression device 3, and a gas-liquid separator 4, and the arrangement further includes a means 5 to introduce the gas refrigerant separated by the separator 4 to either of a first intermediate pressure part X of the compressor 1 and a second intermediate pressure part Y nearer the low pressure suction side than the first intermediate pressure part, a low pressure side circuit 9 which generates circulation of liquid refrigerant separated by the separator 4 and is furnished with the heat absorbing means 10 to function in different temperature zones selectively, and a controlling means 81 which introduces the gas refrigerant separated by the separator 4 to the first intermediate pressure part X of the compressor when the heat absorbing means 10 is selected as functioning in a low temperature zone and introduces to the second intermediate pressure part Y when selected functioning in a high temperature zone. COPYRIGHT: (C)2005,JPO&NCIPI
|
