COMBUSTOR

PROBLEM TO BE SOLVED: To provide a combustor capable of realizing more efficient combustion by stabilizing secondary combustion.SOLUTION: A combustor includes a combustion pot-shaped portion 10 formed into the pot shape by expanding a diameter upward into the tapered shape so that a combustible material is put therein for primary combustion, and further includes a tapered cylindrical throttle portion 20 provided with a tapered opening port 21 formed to substantially throttle ascending current Z by combustion air expanded from a top face opening port 12 of the combustion pot-shaped portion 10, by being disposed at a desired interval to an upper part from an upper end peripheral edge 11 of the combustion pot-shaped portion 10, and having the form of tapered cylindrical shape of which a diameter is reduced upward into the tapered shape, and a tapered cylindrical inward inclined inner peripheral face 22 for reflecting and radiating heat to an inner side.SELECTED DRAWING: Figure 1 【課題】二次燃焼を安定化させることによって、より優れた効率的な燃焼を実現できる燃焼器を提供すること。【解決手段】可燃物を入れて一次燃焼できるように、上方へ向ってテーパ状に拡径するポット状の形態に設けられた燃焼鉢状部１０を備え、該燃焼鉢状部１０の上端周縁１１から上方に所要の間隔を置いて配される共に、上方へ向ってテーパ状に縮径するテーパ筒状の形態に設けられることで、燃焼鉢状部１０の上面開放口１２からの膨張する燃焼空気による上昇気流Ｚを実質的に絞るようにテーパ開放口２１が形成されていると共に、熱を内側へ反射及び輻射するようにテーパ筒状の内向きの傾斜内周面２２が形成されているテーパ筒状絞り部２０を備える。【選択図】図１