| 摘要 |
PURPOSE:To effectively heat the forward end of each thermoelectric element, by a method wherein the forward end of each of a plurality of thermoelectric elements is disposed along the peripheral direction of a flame cylinder, and the forward ends, positioned across the alignment, out of the forward ends are slightly deviated toward the center side of the flame cylinder. CONSTITUTION:The forward ends of thermoelectric elements 40 are aligned right above between inner and outer flame cylinders 16 and 17 of a combustion cylinder 15 and along the peripheral direction thereof, the forward ends, positioned at the intermediate of the alignment, are situated at an intermediate point between the flame cylinders 16 and 17, the forward ends, located on the opposite ends of the alignment, are gradually slightly deviated toward the center side of the combustion cylinder 15 from the intermediate point. In a portion where the thermoelectric elements 40 are disposed, resulting from control of draft, a combustion flame and combustion exhaust gas are raised approximately perpendicularly at the intermediate part of the alignment part, and they are gradually slightly raised at the sides across the alignment in a manner to be inclined toward the center side of the combustion cylinder 15. Thus, the elements are positioned in a location relation dependent upon the rising condition of a combustion flame and combustion exhaust gas, the forward ends of the thermoelectric elements 40 are respectively reliably brought into contact with a high temperature combustion flame and combustion exhaust gas, resulting in effective heating. |
