Refrigerant charge control system for heat pump

Details Refrigerant charge control system for heat pump Refrigerant charge control system for heat pump

1996-12-17

1998-03-24

Sollecito, John M.

Refrigeration

Automatic control

Withdrawing or adding refrigerant from or to normally closed...

623244, F25B 4500

Patent

active

057299927

ABSTRACT:
A geothermal heat transfer system having a plurality of heat exchange loops placed in the ground, each loop having an out flow line and a return line connected by a U-turn juncture. A heat exchange device connects to the loops through the inlet and outlet lines. A refrigerant charge control system selectively provides either heating or cooling heat transfer to or from a temperature regulated area. A charge control flow control device maintains a single flow direction of refrigerant within charge control system, while refrigerant flow reverses direction elsewhere in said heat pump system. A plurality of check valves are employed to provide the flow control. A float and stop valve system maintains a sufficient quantity of refrigerant in the condenser and evaporator of the heat pump for optimum design performance.

REFERENCES:
patent: 2715317 (1955-08-01), Rhodes
patent: 3264838 (1966-08-01), Johnson

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