| 摘要 |
PURPOSE:To reduce the size of an evaporating chamber and to shorten a rise time, by a method wherein a combustion chamber is formed with a gap between a burner port cylinder and a heat collecting cylinder, a disc-like partition, having an opening part, is situated to the heat collecting cylinder, and an evaporating chamber is formed with a gap between an evaporating surface and the partition disc. CONSTITUTION:Fuel fed to an evaporating chamber 6a is evaporated by an evaporating surface heated by an electric heater 2, and the evaporated fuel, mixed with a small amount of air fed to the evaporating chamber 6a, flows through an opening part 3a of a partition disc 3 to a combustion chamber 6. The air-fuel mixture is burnt while it is mixed with air fed to the combustion chamber 6 through bores 4a of a burner port cylinder 4 and is diffused. In this case, particles of fuel mixed in evaporated gas are brought into contact with the partition disc 3 and is evaporated, and all fuel becomes evaporated gas to effect excellent blue flame combustion. Flame is formed in a direction extending from the pores 4a of the burner port cylinder 4 to an internal periphery to heat a heat collecting cylinder 1 erected at the inside. Thus, since the temperature of an evaporating surface 1a and the partition disc 3 is raised by means of heat conducted from the heat collecting cylinder, evaporation and combustion are continued by means of a self-heat. Further, since flame is formed in an internal direction, the diameter of the flame is reduced, and the diameter of a combustion chamber on the downstream side of the combustion chamber 6 can be reduced.
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