Apparatus for the gas phase combustion of liquid fuels
US4008041A · kind A · utility
Inventors
Key dates
| Filing date | Oct 2, 1975 |
| Grant date | Feb 15, 1977 |
| Priority date | — |
| Expiry date | Oct 2, 1995 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23D11/445
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An arrangement to produce high efficiency gas phase combustion of liquid fuels. A liquid fuel, such as conventional heating oil, is pumped through a heat exchanger immersed in a liquid bath whose temperature is maintained at a level which is sufficiently high to cause the fuel to gassify but low enough to preclude undesirable chemical decomposition. The liquid bath is contained within an element which is directly exposed to a flame produced by the combustion of the gasified liquid fuel. The liquid bath temperature is controlled by varying the amount of surface area exposed to the flame or by internal forced circulation of the bath liquid. The gasified fuel is injected into an air or oxidizing gas stream and allowed to premix prior to combustion. Combustion is initiated by a spark or pilot flame and is stabilized by a flameholder. By eliminating liquid phase fuel from the flame zone and premixing with air, the apparatus produces a clean flame, free of solid carbon particles, with extremely low levels of carbon monoxide, unburned hydrocarbons and nitric oxide. In essence, the flame exhibits all the desirable characteristics of premixed gas phase combustion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.