초록 ▼

In the case that heat absorbing means that function in selectively different temperature ranges, are provided in a refrigerating cycle, an object is to provide a refrigerating apparatus capable of suppressing the deterioration of efficiency in either temperature range to make a highly efficient oper

In the case that heat absorbing means that function in selectively different temperature ranges, are provided in a refrigerating cycle, an object is to provide a refrigerating apparatus capable of suppressing the deterioration of efficiency in either temperature range to make a highly efficient operation possible. The refrigerating apparatus includes a compressor, a radiator, first heat absorbing means, and second heat absorbing means provided in parallel with the first heat absorbing means. The first heat absorbing means includes first decompressing means, a first heat absorber, and a first heat exchanger capable of heat exchange between a refrigerant which has come from the first heat absorber and a refrigerant flowing in the first decompressing means. The second heat absorbing means includes second decompressing means, a second heat absorber, and a second heat exchanger capable of heat exchange between a refrigerant which has come from the second heat absorber and a refrigerant flowing in the second decompressing means.

대표청구항 ▼

What is claimed is: 1. A refrigerating apparatus comprising a compressor, a radiator connected to a discharge side of the compressor, first heat absorbing means connected to an outlet side of the radiator, and second heat absorbing means provided in parallel with the first heat absorbing means, out

What is claimed is: 1. A refrigerating apparatus comprising a compressor, a radiator connected to a discharge side of the compressor, first heat absorbing means connected to an outlet side of the radiator, and second heat absorbing means provided in parallel with the first heat absorbing means, outlet sides of the first and second heat absorbing means being connected to a suction side of the compressor, the first heat absorbing means comprising first decompressing means, a first heat absorber, and a first heat exchanger configured to carry out heat exchange between a refrigerant which has come from the first heat absorber and a refrigerant flowing in the first decompressing means, and the second heat absorbing means comprising a second decompressing means, a second heat absorber, and a second heat exchanger configured to carry out heat exchange between a refrigerant which has come from the second heat absorber and a refrigerant flowing in the second decompressing means. 2. The refrigerating apparatus according to claim 1, wherein the compressor has an intermediate pressure portion, the second heat absorbing means further comprises a decompressor and a gas-liquid separator between the radiator and the second decompressing means, the refrigerating apparatus being provided with a refrigerant introducing pipe to introduce a gaseous refrigerant separated by the gas-liquid separator, into the intermediate pressure portion. 3. The refrigerating apparatus according to claim 1, wherein the first decompressing means comprises a capillary tube and an expansion valve, and the second decompressing means comprises a capillary tube. 4. The refrigerating apparatus according to claim 1, wherein the first and second heat absorbing means function in selectively different temperature ranges. 5. The refrigerating apparatus according to claim 4, wherein the second heat absorbing means functions in a lower temperature range than the first heat absorbing means. 6. A refrigerator comprising the refrigerating apparatus according to any one of claims 1 to 5. 7. The refrigerator according to claim 6, which comprises a refrigerating room and a freezing room to be operated at a lower temperature than the refrigerating room, the refrigerating room being cooled by the first heat absorbing means, and the freezing room being cooled by the second heat absorbing means. 8. The refrigerator according to claim 7, wherein the refrigerant is allowed to flow in the first and second heat absorbing means, when a temperature of the refrigerating room and/or the freezing room is higher than a predetermined temperature. 9. The refrigerating apparatus according to any one of claims 1 to 5 and the refrigerator according to any one of claims 7 to 8, wherein carbon dioxide is used as the refrigerant.