| 摘要 |
PROBLEM TO BE SOLVED: To enable stable combustion without heat deterioration and deformation of a burner port head part even when using the burner port head part for a long period. SOLUTION: Burner port plates 37 made of flat plates having a center part opened and outer peripheries cut out into gear shapes and burner port spacers 36 made of flat plates provided with openings having larger diameters than inner edge diameters of the cut-out parts of the burner port plates 37 at the center part are alternately overlapped to make the cut-out parts of the burner port plates 37 as burner ports 37a. By jetting mixed gas from the burner ports 37a, a flame is formed. A reinforcing plate 40 is provided between a burner port unit 38 and the burner port head 39. Plating treatment is performed for at least one of the burner port plate 37, the burner port spacer 36, the burner port head 39 and the reinforcing plate 40 to be integrated by fastening by brazing. COPYRIGHT: (C)2004,JPO
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