| 摘要 |
PURPOSE:To facilitate ignition when starting or restarting after quenching by providing fuel ignition means, combustion detection means and means for moving a needle valve in a direction to increase the fuel injection quantity when it is detected that the burner is not in the combustion. CONSTITUTION:In the gun type burner 10, a fuel ejected from a nozzle 16 is ignited by an ignition rod 58 provided directly upward of a nozzle hole 18. The combustion state of the burner, that is, whether it is in combustion or not is detected by a flame detector 66 provided in the vicinity of the upper part of a needle valve operating motor 52. At the time of ignition, the motor 52 is rotated to move the needle valve, and the fuel injection quantity is increased so that the fuel is easily atomized so as to improve the ignitability of the burner. A fuel pump 28, the operating motor 52, a fan motor 56, a frame holder 62 and the flame detector 66 and all connected to a controller 68. By these procedures, the burner can easily be ignited at the time of starting or restarting after quenching. |
