| 摘要 |
PURPOSE:To prevent the titled burner from lift burning and decrease burning noise by providing an auxiliary flame blowing-off passage which decreases the blowing-off speed of a mixed gas blown-off through gas blowing-off clearance. CONSTITUTION:An auxiliary flame blowing-off passage 29 is opened at the surface side of an expanding out stage part 21 provided in the vicinity of gas blowing-off clearance 23, accordingly, a forcely blown-off mixed gas through the gas blowing-off clearance 23 flowed from a hollow cylindrical body 13 is dispersed, a part of the mixed gas is blown-off through the gas blowing-off clearance 23, and another part of the mixed gas is blown-off through the auxiliary flame blowing-off passage 24. Consequently, the blowing-off quantity through the gas blowing-off clearance 23 is decreased. Therefore, the blowing-off speed of the mixed gas blown-off through the gas blowing-off clearance 23 is exceedingly decreased, and continuously blown-off under a slow blowing-off speed. Thereby, a lift burning can be prevented, also a burning noise can be reduced. |
