| 摘要 |
PURPOSE:To stabilize vaporizing combustion by sending combustion air into a blast guide cylinder through a blast heating passage provided between a vaporizing cylinder and a blast guide cylinder and ejecting a gaseous fuel through a gas nozzle provided at the base end part of the blast guide cylinder into the combustion air. CONSTITUTION:Low-temperature combustion air is sent from a blast chamber 117 to a blast heating passage 125 and is reversed at the top part of a vaporizing temperature and pressed into a gas chamber 110 via the inner parts of a blast guide cylinder 127 and a gas nozzle chamber 139 and ejected inwardly of the gas chamber 110. On the other hand, a gaseous fuel is supplied into a gas nozzle chamber 139 and is ejected from a gas ejection hole 144 toward combustion air within the blast guide cylinder 127. By these procedures, the gaseous fuel and the combustion air are agitated and mixed, and are formed into a complete combustion gas until it reaches a gas chamber 110. Further, since the combustion air is heated in the blast heating passage 125, the fuel can maintain a completely vaporized state. Thus, stabilized combustion can be obtained. |
