초록 ▼

The present invention is a heat pump system having a direct earth coupled underground heat exchanging apparatus. The system uses a heat exchanging fluid existing in both gaseous and liquid form during operation and includes ancillary equipment and associated controls for carrying out various functio

The present invention is a heat pump system having a direct earth coupled underground heat exchanging apparatus. The system uses a heat exchanging fluid existing in both gaseous and liquid form during operation and includes ancillary equipment and associated controls for carrying out various functions such as cooling, heating, refrigeration and water heating. By effectively utilizing the excellent heat conservation characteristics and huge heat capacity of subsurface earth or water, a greatly improved level of efficiency is achieved. The apparatus comprises a compressor 1, an expansion valve 8, a receiver 7, an indoor evaporator/condenser coil 5, a four way reversing valve 3, an accumulator 16 and a plurality of evaporator/condenser coils 11 disposed in the earth. The apparatus uses the native earth as a heat source in the heating mode and as heat sink in the cooling mode.

대표청구항 ▼

A heat pump system having a sub-surface heat exchanger and using a heat exchanging fluid existing in gaseous and liquid form comprising: a compressor for compressing said heat exchanging fluid; a four-way reversing valve for directing the flow of said heat exchanging fluid functionally connected to

A heat pump system having a sub-surface heat exchanger and using a heat exchanging fluid existing in gaseous and liquid form comprising: a compressor for compressing said heat exchanging fluid; a four-way reversing valve for directing the flow of said heat exchanging fluid functionally connected to said compressor; an indoor heat exchange coil for transferring heat to or from the interior of a building functionally connected to said four-way reversing valve; an accumulator for trapping and storing liquids within the apparatus functionally connected to said four-way reversing valve; a plurality of sub-surface tapered heat exchanger tubes functionally connected to said four-way reversing valve; a bi-directional balanced expansion valve functionally connected to said sub-surface heat exchanger; and a receiver for storing excess fluid functionally connected to said expansion valve and to said indoor heat exchange coil.