STRUCTURE OF OIL TANK FOR PETROLEUM COMBUSTION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a structure in which an error in eliminated upon attaching a wick inner tube in an oil tank of a petroleum combustion device having the integrally formed wick inner tube. SOLUTION: On the upper plate 1a of the oil tank 1, an insert hole 3 of a combustion wick 2 is provided and an attaching hole 4 is provided on the bottom plate 1b of the oil tank 1 opposed to the insert hole 3. The wick inner tube 5 is attached so as to pass through the insert hole 3 of the upper plate 1a from the bottom plate 1b of the oil tank 1 and extend upward. The lower end of the wick inner tube 5 is superposed on the peripheral edge of the attaching hole 4 so that the wick inner tube is formed integrally with the oil tank by calking or welding. On the bottom plate 1b of the oil tank 1, a step part 8 for projecting the attaching hole 4 from a periphery in provided. The protruding part 5a of the wick inner tube 5 is formed to a prescribed dimension A by the step part 8.