Liquid pressure amplification with bypass

Refrigeration – Processes – Compressing – condensing and evaporating

Patent

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Details

62197, 62DIG2, F25B 4100, F25B 500

Patent

active

056260253

ABSTRACT:
Liquid pressure amplification with Bypass is used in an air-conditioning or refrigeration system which includes a compressor, a condenser, a pump, an expansion valve, and an evaporator, interconnected by conduits in a closed refrigerant loop. A first conduit coupling an outlet of the compressor to an inlet to the condenser. A centrifugal pump is coupled to the condenser (or receiver) outlet for boosting the pressure of the condensed liquid refrigerant by a substantially constant increment. A second conduit transmits a first portion of the condensed liquid refrigerant from outlet of the pump through the expansion valve into the evaporator to effect cooling. A third conduit transmits a second portion of the condensed liquid refrigerant from the pump outlet into the condenser inlet, which cools the superheated vapor refrigerant entering the condenser, reducing head pressure. A bypass having a valve around is provided to direct refrigerant around the pump in the event the pump is idled while the compressor remains in operation.

REFERENCES:
patent: 2386505 (1945-10-01), Puchy
patent: 2949750 (1960-08-01), Kramer
patent: 4599873 (1986-07-01), Hyde
patent: 5150580 (1992-09-01), Hyde

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