| 摘要 |
PURPOSE:To ensure an amount of the air without a decrease in velocity of flow of injecting fuel, by a method wherein a first moving part has a fuel passage, a second moving part is provided at its forward end with a main nozzle and a leak nozzle located at a specified interval, and a second on-off valve, which is slid to stop and start the feed of fuel to the main nozzle, is provided. CONSTITUTION:With a switch 12 slid forward, an on-off valve is opened, fuel is fed to the forward end of a first moving part through a passage 28 in a first moving part 19, and is injected through a leak nozzle 26 and a main nozzle 27 attached to the forward end of a second moving part 26. When temperature is increased to a set value, a driving plate 9 pushes the second moving part 23 to close a second on-off valve 24. The fuel is injected only through the leak nozzle 26, and the fuel is prevented from being supplied to the main nozzle 27. A flow rate, flowing through the leak nozzle, is a minimum value enough to allow cataltic combustion of a combustion device, and is decided by catalyst capacity and a catalyst area. |
