| 摘要 |
PURPOSE:To make a superior combustion by a method wherein an inner circumferential wall at the combustion part in the outer flame cylinder is composed of a solid basic material to prevent carbon from sticking to the wall. CONSTITUTION:Inner circumferential wall of the combustion part in the outer flame cylinder 7 is coated with a solid basic material 14 of, for example, Al2O3. Thereby, the deposit of carbon is prevented and the carbon may not adhere, resulting in enabling a production of superior red heat. |
