Device for preheating air used in combustion
US4167212A · kind A · utility
2Cited by
5References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 30, 1977 |
| Grant date | Sep 11, 1979 |
| Priority date | — |
| Expiry date | Jun 30, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S165/904
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A device which is positionable within a flue for recapturing heat from hot gases exiting the flue. The device comprises a pair of tubes which are disposed in parallel relation longitudinally of the flue. The tubes are formed from cylindrical tubes which have been flattened from a circular to a generally oval cross-sectional configuration. A shield is positioned longitudinally between the two tubes for radiating against the tubes, heat which contacts the shield by convection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.