초록 ▼

The heat exchanger unit is highly efficient in operation and is so constructed as to permit rapid installation in and removal from the earth at small size sites of desired use of the heat pump system. The unit includes a freon-conduction coil assembly preferably comprised of a plurality of concentri

The heat exchanger unit is highly efficient in operation and is so constructed as to permit rapid installation in and removal from the earth at small size sites of desired use of the heat pump system. The unit includes a freon-conduction coil assembly preferably comprised of a plurality of concentric coils defining parallel flow paths for the fluid conducted to and from the heat exchanger unit during operation of the system. In one embodiment the coils are preferably formed of tubing of deffering diameters, and the convolutions of each coil are preferably spaced from one another and from the other coils of the assembly. The coil assembly may be enclosed by an impervious cylindrical casing to and from which anti-freeze liquid may be readily conducted while he heat exchanger unit is situated entirely below ground level. Water supply means may be provided in association with the heat exchanger unit to maintain the soil adjacent thereto in a moist condition. In another embodiment there is no outer casing and water flows through an inner coil and exits along one side of the exchanger to provide a cooling effect on the outer freon carrying coil. Couplings of a fluid retentive and quickly connectable and disconnectable type releasably connect the heat exchanger unit to above-ground components of the heat pump system and one or more heat exchangers may be coupled to provide additional capacity as required.

대표청구항 ▼

In a heat pump heating and/or cooling system containing freon-type fluid, said system including above-ground components and an earth-type heat exchanger unit disposed during use of said system entirely below ground level, the improvement comprising: said unit including a generally cylindrical coil a

In a heat pump heating and/or cooling system containing freon-type fluid, said system including above-ground components and an earth-type heat exchanger unit disposed during use of said system entirely below ground level, the improvement comprising: said unit including a generally cylindrical coil assembly having a plurality of generally cylindrical fluid-conducting coils extending in substantially concentric relationship to each other about the central axis of said assembly, each of said coils being formed of heat conductive and corrosion resistant tubing the tubing of each coil being of different diameter than the tubing of each other coil; and conduit means interconnecting said coil assembly and said above-ground system components for, during operation of said system, conducting said fluid to and from said fluid-conducting coils of said assembly.