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US 2012/0234036 A1Published application
Economized vapor compression circuit
AssigneeJohnson Controls Technology Company
InventorMustafa Kemal YANIK
Life of this patent
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Abstract
An economized vapor compression circuit is disclosed. An evaporator, compressor, condenser and economizer are fluidly connected by a refrigerant line containing refrigerant. A portion of the liquid refrigerant leaving the economizer is diverted away from the evaporator to sub-cool liquid refrigerant at a location between the condenser and the evaporator.
Claims11
A vapor compression circuit comprising:
- a compressor, a condenser, a flash tank economizer, an expansion device and an evaporator connected in a closed refrigeration loop;
- the flash tank economizer being configured to receive refrigerant from the condenser and provide refrigerant to the evaporator;
- and
- a heat exchanger intermediate the flash tank and the evaporator, wherein liquid refrigerant leaving the flash tank is split into a first stream and a second stream, wherein the second stream is to be provided to the evaporator and wherein the first stream and the second stream are directed to different sides of the heat exchanger such that the first stream enters into a heat exchange relationship with the second stream, to subcool the second stream prior to being provided to the evaporator.
1 more element
A vapor compression circuit comprising:
- an evaporator;
- a compressor;
- a condenser;
- a flash tank economizer;
- the evaporator, compressor, condenser and flash tank economizer are fluidly connected by a refrigerant line containing refrigerant, wherein liquid refrigerant leaving the flash tank economizer is split into a first stream and second stream and vapor refrigerant leaving the flash tank economizer is provided to an intermediate pressure location of the compressor;
- a sub-cooler positioned intermediate the flash tank economizer and the evaporator, the first stream of refrigerant flows through a first expansion device into the sub-cooler, the second stream of refrigerant flows into an opposite end of the sub-cooler from the first stream of refrigerant and enters into a heat exchange relationship with the first stream of refrigerant in which the first stream of refrigerant expands and evaporates, sub-cooling the second stream of refrigerant;
- and
- wherein the second stream of refrigerant from the heat exchanger flows through a second expansion device before entering the evaporator.
5 more elements
Dependencies are inferred from the claim text.