发明名称 |
Sub-surface tubing spacer means for direct expansion heating/cooling systems |
摘要 |
A direct expansion geothermal heat exchange system with spacer fins attached to at least one of a sub-surface refrigerant transport tubing containment pipe and to sub-surface refrigerant transport tubing, so as to ensure the sub-surface pipe/tubing does not come into direct contact with the ground and is surrounded/encased by a thermally conductive grout that is resistant to corrosive sub-surface elements. |
申请公布号 |
US7841200(B1) |
申请公布日期 |
2010.11.30 |
申请号 |
US20040849316 |
申请日期 |
2004.05.19 |
申请人 |
EARTH TO AIR SYSTEMS, LLC |
发明人 |
WIGGS B. RYLAND |
分类号 |
F25D23/12;F24J3/08 |
主分类号 |
F25D23/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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