| 摘要 |
PURPOSE:To enable a holding of sufficient aperture combustion even under a strong draft at the combustion part by a method wherein an open type stove, etc. having a fan is made such that a volume of air required for combustion is of such an air passage arrangement for enabling an introduction of air accompanied by the combustion more than a natural draft. CONSTITUTION:An inner flame cylinder 5 and an outer flame cylinder 6 which have several air holes therein are concentrically arranged in a burner 1 so as to constitute a combustion cylinder 4, an outer cylinder 7 is concentrically arranged around an outer circumference of the combustion cylinder, and then a cap 8 for closing these cylinders 5 to 7 is arranged. Said outer cylinder 7 is formed to have a higher height than that of the inner and outer flame cylinders 5 and 6, and a front air passage wall 10 and a back wall 11 are arranged with a clearance 9 being made at an outer circumference thereof. The clearance 9 is closed at a lower end of the outer cylinder 7 by the partition plate 13 having a draft adjusting opening 12 so as to form an air bypassing passage. Thereby, during burning, the air is fed by fan 18 as shown by an arrow shown with a solid line, fed to the combustion cylinder 4 and the air other than that required for combustion is released from the passage hole 12 to the bypassing air passage 9. |
