Refrigeration – Automatic control – Refrigeration producer
Patent
1994-03-07
1995-02-07
Sollecito, John M.
Refrigeration
Automatic control
Refrigeration producer
62511, 62197, 621963, 62DIG2, 62DIG17, F25B 4104
Patent
active
053867009
ABSTRACT:
Liquid pressure amplification with superheat suppression is used in an air-conditioning or refrigeration system which includes a compressor, a condenser, 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.
REFERENCES:
patent: 1946328 (1934-02-01), Neff
patent: 2967410 (1961-01-01), Schultze
patent: 4419865 (1983-12-01), Szymazek
patent: 4599873 (1986-07-01), Hyde
patent: 5097677 (1992-03-01), Holtzapple
patent: 5150580 (1992-09-01), Hyde
patent: 5291744 (1994-03-01), Hyde
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