| 摘要 |
PURPOSE:To maintain an excellent and stable burning state, by forming a drain collecting part in a state it is communicated to the lower part of a burning chamber, discharging the drain, which is collected at a drain collecting part through a drain discharging means, thereby quickly discharging the drain, which is yielded in the burning chamber when the burning is started. CONSTITUTION:A preliminary mixing chamber 9 is also used as a drain collecting part 16. Its bottom part is formed in a funnel shape. Drain 17, which is collected in the drain collecting part 16 is discharged through a drain discharging means 18. The drain 17, which is yielded in a burning chamber 3 flows down to the preliminary mixing chamber 9, which also serves as the drain collecting chamber 16 that is communicated to the lower part of the burning chamber 3 without wetting a spark generating part 15a of an ignition plug 15. The drain 17, which is collected in the preliminary mixing chamber 9, is quickly discharged through a pipe system 22. Therefore, no adverse effect is given to igniting action and burning action. Meanwhile, the drain 17 discharged from the preliminary mixing chamber 9, is stored in a drain tank 2. The drain 17 exceeding a specified level overflows from a U-shaped pipe 20 and discharged. |
