| 摘要 |
PROBLEM TO BE SOLVED: To burn unburned gas at a high efficiency by sufficient feed of air with a simple structure even if a catalyst is not used, to reduce the generation of the unburned gas and to reduce the manufacture cost. SOLUTION: A flat surface-like placement part 13 on which firewood is to be placed, is provided in a burning chamber 11 of a body 10 and a plurality of inclined air feed pipes 40 having flow out ports 41 capable of feeding external air from an oblique upper part toward an upper center of the placement part 13 are provided such that the flow out ports 41 are symmetrically arranged against a center line of the placement part 13. A plurality of horizontal air feed pipes 50 having flow out ports 51 capable of horizontally feeding external air toward the upper center of the placement part 13 are provided such that the flow out ports 51 are symmetrically arranged against the center line of the placement part 13. COPYRIGHT: (C)2004,JPO
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