| 摘要 |
PURPOSE:To make it possible to freely vary the ability of the title burner while maintaining its stable combustion by providing in a gaseous fuel supply passage flow varying means varying the flow quantity of a gaseous fuel introduced into a combustion chamber. CONSTITUTION:A gas proportional control valve 15 proportionally varying a flow passage area by opening or closing the opening of a port by receiving a signal is interposed on a gaseous fuel supply passage 7b on the upstream side of a cushion tank 13. A combustion quantity adjusting dial 16 for adjusting the combustion quantity is connected to a signal input part of the gas proportional control valve 15 through an opening control circuit 17, and the proportional control valve 15 is driven by an opening degree control circuit 17 so that the combustion quantity corresponds to that set by the combustion quantity adjusting dial 16. That is, it is possible to vary the flow quantity of the gaseous fuel introduced into the combustion chamber 1 as an operating part. |
