| 摘要 |
PROBLEM TO BE SOLVED: To reduce the manufacturing man-hours of a combustion device by adequately vaporizing fuel by a wick. SOLUTION: An air supply and exhaust interrupting member 125, a main combustion tube 122 and a sub-combustion tube 123 are superposed in the radial direction and welded. Thus, even when the tube part 122b and the bottom plate part 122c of the main combustion tube 122 are integrally formed, the air supply and exhaust interrupting member 125, the main combustion tube 122 and the sub-combustion tube 124 can be welded by holding them in the radial direction by welding electrodes. Since the tube 122b is integrally connected to the bottom plate 122c, fuel permeating into a wick 130 is heated by both the radiant heat of flame and heat transferred through the tube 122b and the bottom plate 122c. Accordingly, since the fuel held by the wick 130 can be effectively vaporized (evaporated), all the periphery welding of the bottom plate 122c and the tube 122b can be prevented to reduce the manufacturing cost of the combustion device and adequately vaporize the fuel by the wick 130.
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