Vapor compression refrigerating systems

Details Vapor compression refrigerating systems Vapor compression refrigerating systems

2008-05-13

2008-05-13

Jones, Melvin (Department: 3744)

Refrigeration

Refrigeration producer

Heat exchange between diverse function elements

C062S498000

Reexamination Certificate

active

11567505

ABSTRACT:
A vapor compression refrigerating system having a compressor, a radiator, a first pressure reducing mechanism for reducing a pressure of refrigerant cooled by the radiator, a refrigerant branching means for dividing refrigerant (m) reduced in pressure by the first pressure-reducing mechanism into portions, a second pressure reducing mechanism for reducing a pressure of one portion of refrigerant (m1), and a third pressure reducing mechanism for reducing a pressure of another portion of refrigerant (m2). One portion and pressure reduced refrigerant (m1′) exchanges heat in a cooler with refrigerant present between the first and third pressure reducing mechanisms, and another portion and pressure reduced refrigerant (m2′) is evaporated by an evaporator. The evaporated refrigerant (m2″) and the refrigerant (m1′) having passed through the cooler are mixed by a gas/liquid separator, and the mixed refrigerant is introduced into the compressor. In a vapor compression refrigerating system using carbon dioxide, the degree of refrigerant superheating at a suction side of the compressor may be reduced, and a coefficient of performance of the refrigerating cycle may be increased.

REFERENCES:
patent: 2004/0134225 (2004-07-01), Sakamoto et al.

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