Refrigeration – Refrigeration producer – With lubricant handling means
Patent
1995-05-02
1998-06-02
Wayner, William E.
Refrigeration
Refrigeration producer
With lubricant handling means
623244, 62509, F25B 4302, F25B 3904
Patent
active
057585148
ABSTRACT:
A geothermal heating and/or cooling system includes one or more of a plurality of features that enhance the efficiency of the system. Preferably, the system includes a subterranean heat exchanger having tubes disposed against a conductive sheet. The system also preferably includes a reservoir vessel for holding a supply of heat transfer fluid in a liquid phase. Also, the system preferably includes heat exchange means for exchanging heat between the heat transfer fluid and the outdoor air. In addition, the system preferably has an automatically adjusting cooling expansion valve controlled by a sensor disposed to detect the pressure or temperature of heat transfer fluid exiting an indoor air handler in a cooling mode, the system also preferably has an automatically adjusting heating expansion valve controlled by a sensor that is preferably located so as to detect the temperature or pressure of heat transfer fluid flowing from the subterranean heat exchanger to a gas compressor. The enhancements may be used individually or in various combinations.
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Carpenter Frank K.
Genung John
Envirotherm Heating & Cooling Systems, Inc.
Wayner William E.
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