| 摘要 |
PURPOSE:To permit to obtain a larger variable width in the amount of heat and improve the characteristics of exhaust gas by a method wherein the heights of inner and outer flame cylinders are constituted so as to be equal substantially and the outer cylinder is provided with an air choking section. CONSTITUTION:A wick guide tube 4 is located below the inner flame cylinder 1 and a wick outer tube 5 is located below the outer flame cylinder 2 while a wick 6 is interposed between the tubes 4, 5 so as to be slidable in up-and-down direction. A flame expanding plate 9, integral with a cylindrical red-heat body 10, is fixed to an inner flame cylinder cap 8 by spot welding or the like. The inner flame cylinder 1 and the outer flame cylinder 2 are formed so as to have the same height. Further, the air choking section 14 is provided at a part of the outer cylinder 3, which is opposing to the upper ends of the inner and outer flame cylinders 1, 2. According to this constitution, air, which rises up through a space between the outer flame cylinder 2 and the outer cylinder 3, is supplied to the flames in an ample amount, and perfect combustion, which generates small amount of carbon monooxide or the like, may be effected since sufficient air is supplied. The variable width of calorific value, which is adjusted by regulating the amount of evaporation from the wick by moving the height of wick into vertical direction, may be obtained in a large range. |
