Closed loop ground source pressurized system for a heat pump
OwnerDallas H. Warnkeinventor
Life of this patent
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Abstract
A closed loop, pressurized system for a ground source heat pump and a pressure/liquid source module therefore. The pressure/liquid source module has a liquid tank having a predetermined liquid level and an inlet pipe extending downwardly within the tank from adjacent the top of the tank to a distal end which is below the liquid level. The inlet pipe is adapted to be connected to the loop of the closed loop, pressurized system of the heat pump. The liquid tank has an outlet adjacent the bottom of the tank, the outlet being connected to the heat pump through a check valve and a liquid pump. The valve is between the tank and the pump.
Claims11
A closed loop pressurized system for a heat pump comprising at least one loop connected to a heat pump return line, a non-pressurized liquid tank having a predetermined liquid level and an inlet pipe extending downwardly within said tank from adjacent the top of the tank, said inlet pipe being connected between said loop and said heat pump, said inlet pipe having an outlet below the liquid level of said tank, said tank having an outlet adjacent the bottom of said tank, said outlets being spaced apart, said tank outlet being connected to said heat pump having a normal outlet pressure of about 15 PSIG through a check valve and a pump, said check valve being between said tank and said pump.
A closed loop pressurized system for a heat pump comprising at least one loop connected to a heat pump return line, a non-pressurized liquid tank having a predetermined liquid level and an inlet pipe extending downwardly within said tank from adjacent the top of the tank, said inlet pipe being connected to said heat pump through said loop, said inlet pipe having an outlet below the liquid level of said tank, said tank having an outlet adjacent the bottom of said tank, said inlet and outlet being spaced apart, said outlet being connected to said heat pump through a check valve and a pump having a normal outlet pressure of about 15 PSIG, said check valve being between said tank and said pump, said loop and all connections between said loop and tank and heat pump are filled with liquid, said tank has a lower portion filled with liquid and an upper portion filled with air, and said loop and tank and connections all being at essentially the same pressure, a pair of couplings on opposite sides of said pump respectively, one of said couplings being between said pump and said check valve, one of said couplings being between said pump and said heat pump, said tank being elongated having the top further away from the bottom than any transverse dimension of said tank, said pump and couplings and said check valve are extended vertically of said tank and attached to said tank thereby forming a liquid/pressure source module.
Dependencies are inferred from the claim text.