| 摘要 |
PURPOSE:To enable to prevent a large quantity of carbon monoxide from occurring by preventing disorder and a lift phenomenon of a combustion flame, by providing a plurality of air holes on the upper part of the side wall of the external flame cylinder of a combustion cylinder by making distance between the air holes smaller than that of the other air holes of the side wall in a crowded state. CONSTITUTION:As combustion is started and combustion gas of high temperature due to the combustion passes through the exhaust gas passage 14a of a combustion chamber 4 and a pressure regulating plate 14 when a wick 1 is ignited, a heat draft is generated, air necessary for the combustion is supplied to the combustion chamber 4 from each of air holes 2a, 3a, 3b of an internal and external cylinders 2, 3 and an opening part of a red heat unit, through which a flame is formed. Heat of a combustion flame is supplied to the wick 1, through which evaporation of liquid fuel is accelerated and the combustion is made to keep on. Then under a normal combustion state a quantity of combustion is kept on and stabilized combustion is secured by forming air hole flames on air holes 3a, 3b provided on a side wall of the external flame cylinder 3, exhibiting a stabilized flame keeping state and supplying heat making fuel evaporate to the wick 1. As the air hole flames are kept on stably in the crowded air holes 3b of the upper part of the external flame cylinder 3, the air hole flames can be kept on in the stabilized flame keeping state. |
