| 摘要 |
PURPOSE:To provide a small combustion device which can produce high temperature gas, by utilizing a catalyst which is sufficiently combustible even at a low air excess rate. CONSTITUTION:When, with an electric heater 16 energized, a fuel heating chamber 16e and a nozzle 7 are heated to a set temperature, a motor 2 with a high pressure type blower 3 is energized, and a fuel pump 15, simultaneously, is energized to feed the fuel in an evaporator 16. The fuel is immediately vaporized to produce high pressure high temperature gas which is injected through a nozzle 7. After the gas collides with the air 8 attended with a swirl current from the blower 3 and is well mixed, it flows to the catalyst 10 side, it flows out to the combustion gas chamber 12 side to ignite it by means of an ignition pulg 13, and it is started to burn on the catalyst 10. The catalyst 10 is heated and simultaneously is activated, whereby flame gradually enters the catalyst 10 and is shifted to catalyst combustion, and is completely burnt in the catalyst 10 even at a low air excess rate. Completely burnt gas 12a heats the fuel in a fuel piping 17 and liquid fuel can be sucessively gasified even if an electric heater 16a is cut off from energization thereto. |
