| 摘要 |
PURPOSE:To enable to make a combustion sound small by making initial build- up fast, by a method wherein a first ignition device making combustion start within an evaporating chamber and a second ignition device making the combustion start within a combustion chamber are provided, an oil feed device is suspended after starting of the combustion and then only the first ignition device is suspended. CONSTITUTION:Liquid fuel is made to spray within an evaporating chamber 4 by making a feed oil device 6 act. At the same time, a first ignition device 7 is made to act and the fuel is ignited. Combustion of the fuel is started within the evaporating chamber 4 by receiving air to be supplied through an air supply opening 1 and spouted within a combustion chamber 9 through flame holes. After extinguishment of a flame in the evaporating chamber 4, the feed oil device 6 and a second ignition device 10 are made to act. The fuel supplied within the evaporating chamber 4 is evaporated through heat of a heated evaporating cylinder 3, mixed with the air to be supplied from the air supply opening 1 and turned into a combustible air-fuel mixture, spouted into the combustion chamber 9 from the flame holes 8, ignited through the second ignition device 10 and premix combustion is formed. |
