| 摘要 |
PURPOSE:To enable efficient combustion by keeping sufficiently gasification of fuel and reducing generation of a red flame in burning flames, by preventing a drop of a temperature in a gas erupting chamber. CONSTITUTION:When air is sent to the inside of a blower cylinder 4 and an evaporating cylinder 3 is revolved, fuel is evaporated while blast is passing through from a guide air cylinder 7 to an evaporating air path 6 and arrived at a gas erupting chamber 10, through which fuel gas to be spouted forward through a spouting hole 8 of a combustion board 9 is burnt. In this instance, the inside of the gas erupting chamber is heated by the combustion board 9 through heating by burning flames, as also a concave part 5 of a combustion cylinder 11 is heated by the combustion board 9 through heat transfer and, morever, an external circumferential surface and a back surface sides of the concave part 5 are joined and surrounded with a frontal circumference surface of a convave part 1 of a blower cylinder 4, cool air flowing around the external circumference of the blower cylinder 4 does not flow by abutting directly against the external circumferential surface of the concave part 5. Efficient combustion, therefore, can be kept on by eliminating cooling of a circumferential surface of the gas erupting chamber 10. |
