Supercritical refrigeration cycle system
First Claim
1. A supercritical refrigeration cycle system of vapor compression type with pressure in the refrigeration cycle reaching and exceeding a critical pressure of a refrigerant, the supercritical refrigeration cycle system comprising:
- a compressor for sucking in and compressing the refrigerant;
a radiator for radiating heat of the refrigerant discharged from the compressor;
a plurality of decompressors into which the refrigerant discharged from the radiator flows;
a first evaporator for evaporating refrigerant decompressed by the first decompressor; and
a second evaporator for evaporating refrigerant decompressed by the second decompressor;
wherein the refrigerant flowing out of one of the first evaporator and the second evaporator flows into the other of the first evaporator and the second evaporator.
1 Assignment
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Accused Products
Abstract
A supercritical refrigeration cycle system (10) having a simplified flow path configuration comprises a compressor (1) for sucking in and compressing a refrigerant, a radiator (2) for radiating the heat of the high-pressure refrigerant discharged from the compressor (1), a high-pressure control valve (5) and a superheat control valve (12) into which the high-pressure refrigerant flowing out of the radiator (2) flows after being distributed, a first evaporator (6) for evaporating the influent refrigerant decompressed by the high-pressure control valve (5), and a second evaporator (9) for evaporating the influent refrigerant decompressed by the superheat control valve (12). The outlet of the second evaporator (9) and the inlet of the first evaporator (6) are connected to each other by the refrigerant path (13) in such a manner that the refrigerant flowing out of the second evaporator (9) flows into the first evaporator (6). An increase in the blowout air temperature can be reduced by controlling the refrigerant flowing in each of the plurality of the evaporators.
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Citations
9 Claims
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1. A supercritical refrigeration cycle system of vapor compression type with pressure in the refrigeration cycle reaching and exceeding a critical pressure of a refrigerant, the supercritical refrigeration cycle system comprising:
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a compressor for sucking in and compressing the refrigerant; a radiator for radiating heat of the refrigerant discharged from the compressor; a plurality of decompressors into which the refrigerant discharged from the radiator flows; a first evaporator for evaporating refrigerant decompressed by the first decompressor; and a second evaporator for evaporating refrigerant decompressed by the second decompressor; wherein the refrigerant flowing out of one of the first evaporator and the second evaporator flows into the other of the first evaporator and the second evaporator. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A supercritical refrigeration cycle system of vapor compression type with pressure in the refrigeration cycle reaching and exceeding a critical pressure of a refrigerant, the supercritical refrigeration cycle system comprising:
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a compressor for sucking in and compressing the refrigerant; a radiator for radiating heat of the refrigerant discharged from the compressor; a plurality of refrigerant paths for distributing refrigerant flowing out of the radiator; a first evaporator and a second evaporator for evaporating the refrigerant distributed from the plurality of refrigerant paths; and an accumulator for separating inflowing refrigerant into a gas-phase refrigerant and a liquid-phase refrigerant and supplying the gas-phase refrigerant to come compressor, wherein the plurality of the refrigerant paths include a bypass allowing decompressed refrigerant to flow into the accumulator and a first distribution path and a second distribution path for distributing the refrigerant to the first evaporator and the second evaporator, respectively, the system further comprising a superheat control valve for controlling a superheat amount of at least one of the refrigerant at an outlet of the first evaporator and the refrigerant at an outlet of the second evaporator. - View Dependent Claims (8, 9)
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Specification