Double-fired heating boiler
US4206723A · kind A · utility
11Cited by
7References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 19, 1978 |
| Grant date | Jun 10, 1980 |
| Priority date | — |
| Expiry date | Dec 19, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24H1/50
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A double-fired heating boiler includes first and second combustion chambers positioned within a common boiler water chamber and adapted to be fired respectively by gas or oil and by solid fuel. A collector for the combustion gases produced by the burning of the fluid and solid fuel is provided. Separate exhaust conduit systems having ancillary heat exchange surfaces are connected to the respective combustion chambers and to the collector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.