Cooling system with controlled biphase mixing of refrigerant
AssigneeM.D. Mechanical Devices Ltd.
InventorsLior Moshe Yosef, Eyal Simhon
Life of this patent
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Abstract
A method for cooling with a refrigerant based cooling system includes circulating a refrigerant in a main flow path of a refrigeration cycle including an accumulator, compressor, condenser and an evaporator, diverting a portion of flow to a bypass flow path from a location along the main flow path that is downstream the compressor and upstream the condenser and combining flow through the bypass flow path with flow through the main flow path downstream the condenser and upstream from the evaporator. The rate of flow through the bypass flow path may be dynamically controlled.
Claims16
A method for cooling with a refrigerant based cooling system, the method comprising:
- circulating a refrigerant in a main flow path of a refrigeration cycle including an accumulator, compressor, condenser and an evaporator;
- separating a liquid refrigerant from a vaporized refrigerant;
- directing the liquid refrigerant to the condenser via the main flow path;
- and
- diverting at least a portion of the vaporized refrigerant to a bypass flow path, wherein the bypass flow path is diverted from a location along the main flow path that is downstream the compressor and upstream the condenser;
- dynamically controlling rate of flow through the bypass flow path;
- and
- combining refrigerant in a gaseous phase flowing through the bypass flow path with liquid only refrigerant flowing through the main flow path downstream the condenser and upstream from the evaporator.
A cooling system comprising:
- a refrigerant;
- an accumulator, a compressor, a condenser and an evaporator fluidly connected by a main flow path configured to circulate refrigerant therein;
- a bypass flow path configured to divert a portion of flow from a location on the main flow path that is downstream the compressor and upstream the condenser, wherein the portion of flow that is diverted to the bypass flow path is flow of the refrigerant in a gaseous phase;
- a vapor-liquid separator integrated into the main flow path downstream from the compressor and configured to direct flow to the bypass flow path, wherein the vapor-liquid separator is configured to receive hi-phase refrigerant from the compressor and to separately direct liquid refrigerant to the condenser and at least a portion of the vaporized refrigerant to the bypass flow path;
- a valve configured to control flow through the bypass flow path;
- a mixing chamber configured to receive only liquid refrigerant from the main flow path and to receive the refrigerant in the gaseous phase from the bypass flow path and to direct outflow from the mixing chamber to the evaporator;
- and
- a controller configured to dynamically control operation of the valve.
Dependencies are inferred from the claim text.