| 摘要 |
PURPOSE:To heat a liquid fuel vaporization section to a high temperature at an early stage and to shorten the preheating time by a method wherein a high temperature exhaust combustion gas from a burner is introduced to the outer peripheral surface of the vaporization section and the exhaust port for the exhaust combustion gas is provided in correspondence to the vaporization surface for the liquid fuel. CONSTITUTION:When a heater 51 is energized to heat a vaporization cylinder 50 to a predetermined temperature, combustion air is supplied into the vaporization cylinder 50 from a ventilating cylinder 52 by the operation of an oil supply fan 54. Further, liquid fuel is injected toward the vaporization surface 57 of the vaporization cyinder from an oil supply nozzle 55 by the operation of an oil supply pump 56 so that the particles of the fuel becomes a vaporized gas instantaneously since the temperature in the vaporization cylinder 50 is high and the vaporized gas is introduced into a mixing chamber 62 located forward as it is premixed with the combustion air. The pre-mixed gas then passes through a number of small holes provided in a current forming cylinder 63 so as to be formed the current sufficiently by a fine current-forming space 65, is injected from the surface of the combustion cylinder 66 and ignited to burned superficially. The high temperature exhaust gas generated due to combustion is discharged from a combustion space 69 so that the outer peripheral surface of the vaporization cylinder 50 is heated to collect heat of the exhaust gas. |
