Subterranean heating and cooling system
US4449572A · kind A · utility
4Cited by
4References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 24, 1983 |
| Grant date | May 22, 1984 |
| Priority date | — |
| Expiry date | Jan 24, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/14
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A method and equipment for increasing the efficiency of a heat pump is the subject of the present invention. The method comprises providing an underground pathway for air travel, forcing a quantity of air through the pathway for operation of the heat pump, and directing air emanating from the underground pathway to the heat pump inlet. The equipment of the invention comprises a heat pump, an underground conduit presenting an elongated path for accommodating the flow of air therethrough for heat exchange purposes with the earth, with the outlet of the underground conduit being disposed for directing air toward the heat pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.