Alternate sub-surface and optionally accessible direct...

Details Alternate sub-surface and optionally accessible direct... Alternate sub-surface and optionally accessible direct...

2006-07-25

2006-07-25

Jones, Melvin (Department: 3744)

Refrigeration

Structural installation

Geographic, e.g., subterranean feature

C062S324600

Reexamination Certificate

active

07080524

ABSTRACT:
A sub-surface direct expansion geothermal heat exchange unit, which can be placed in sub-surface ground and/or water, consisting of at least one smaller interior diameter refrigerant liquid/fluid transport line with an optional vertically oriented U bend at the bottom, operatively connected to at least one larger interior diameter refrigerant liquid/fluid transport line, with at least one refrigerant flow metering device, designed to the system's compressor's BTU design capacity, which is optionally accessible, installed in the liquid/fluid line at one of an above-surface location and at the sub-surface point near to where the liquid/fluid line connects with the vapor/fluid line, for use when the system is operating in the heating mode, together with a refrigerant flow metering device by-pass means so as to enable additional refrigerant fluid flow at least one of around and past the refrigerant metering device when the system is operating in the cooling mode.

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