Heat exchanger in plants for ventilating rooms or buildings
US4391321A · kind A · utility
49Cited by
6References
2Claims
0Family size
Inventor
Key dates
| Filing date | Nov 20, 1980 |
| Grant date | Jul 5, 1983 |
| Priority date | — |
| Expiry date | Nov 20, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87829
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A heat exchanger in combination with two duct system for bringing in relatively cold outside air into an enclosure while exhausting relatively warm room air from the enclosure. The heat exchanger is positioned so as to recover heat from the exhaust air into the incoming cold fresh air. A valving system switches the incoming cold air with the warm exhaust air in the flow paths of the heat exchanger. This solves the problem of moisture from the exhaust air condensing on the walls of the ducting system for the exhaust air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.