| 摘要 |
PURPOSE:To prevent the accumulation of a large amount of tar on the vaporization surface of a vaporization cylinder and to secure a stabilized combustion condition for a prolonged period of time by a method wherein an aluminum film carrying a tar removing catalyst is formed on the vaporization surface and the temperature of the vaporization surface is made higher than the film-boiling temperature of a liquid fuel. CONSTITUTION:A vaporization cylinder 8 is heated by a preheating electrical heater 9. When the temperature of the vaporization cylinder 8 rises higher than the film-boiling temperature of the liquid fuel, a motor 4 is started and a cone 5, a shake-off plate 6 and an agitating vane 6 rotate. Further, simultaneously with the initiation of ventilation, a fuel pump operates to supply the liquid fuel over the cone 5 through a supply pipe 14 so that the liquid fuel becomes fine particle oil drops as it runs against the shake-off plate 6 and the agitating vane 7 and scatters over the vaporization surface 15. In this case, primary air is already supplied into the vaporization cylinder 2 and therefore, the vaporised fuel is mixed with the air to produce a gas mixture which passes through a burner head 12 to make a combustion flame 13. Accordingly, it is possible to reduce the amount of tar generating on the vaporization surface 15 in such a manner that the vaporizing temperature of the liquid fuel is made high by elevating the temperature of the vaporization surface 15 from the nucleus boiling temperature to the membranous temperature of the liquid fuel and the aluminum film carrying the tar decomposing catalyst is formed on the vaporization surface. |
