| 摘要 |
PURPOSE:To early sense the abnormal combustion, etc. of the combustor by sudden ly lowering electromotive force by the flickering, etc. of combustion flames. CONSTITUTION:The safety device of this combustor is formed in such a manner that a semiconductor element 10 is connected in series with an electric connecting circuit of a sensor 9, which generates electromotive force by action with combustion flames, and a magnet valve 2 mounted to a fuel feed passage 1 of combustor. Currents are changed in value remarkably larger than a changing rate of voltage by means of the semiconductor element 10, and the sensitivity of the sensor can moderately be improved. That is, electromotive force can abruptly be lowered near a valve closing level of the magnet valve 2 due to the flickering, etc. of combustion flames, thus early sensing the abnormal combustion, etc. of the combustor. |
