| 摘要 |
PURPOSE:To make it possible to carry out a temperature control with an accuracy and time deviation and uniform combustion of a combustion catalyst by providing holes for straightening a gaseous mixture flow and feeding the mixture to the combustion catalyst, in an inner pipe and a gas supply pipe. CONSTITUTION:The inner pipe 23 formed by a material having a low thermal expansion coefficient is provided coaxially with a nozzle 15. Further, the side end portion of the nozzle 15 is brought into contact with a valve A constituting a flow quantity adjusting valve, and an air suction part 24 made up from a plurality of slits. Further, one end of the inner pipe 23 is hermetically closed by a hermetically closed screw 25. Furthermore, a plurality of holes 37 and 38 for straightening the gaseous mixture of the vaporized fuel and air and feeding the mixture into the combustion catalyst 32, are provided in the inner pipe 23 and the gas supply pipe 26. |
