| 摘要 |
PURPOSE:To decrease occurrence of transient phenomenon in which fuel and air become excessive by maintaining the titled heater temporarily for a certain time in a middle combustion region when the combustion quantity is abruptly changed from the maximum combustion to the minimum combustion or from the minimum combustion to the maximum combustion. CONSTITUTION:When the titled heater is ignited, the fuel 2 contained in a wick 3 burns. At the same time, a fan 17 rotates, and wind is blown downward along a blast guide 32, and mixed with a combustion gas and blown off from a blow- off port 20. The combustion is carried out at air-holes 10 and 14, and the evaporation of the fuel is continued by the heat from flame formed at the air-hole parts, the combustion being further continued by maintaining a predetermined combustion quantity. Here, in a case where the maximum combustion is changed over from the maximum combustion to the minimum combustion or from the minimum combustion to the maximum combustion, when the middle combustion is held temporarily for a certain period of time, the quantitive balance between the fuel and air is lost, and occurrence of abnormal combustion due to a transient excess of fuel or air is reduced. |
