| 摘要 |
PROBLEM TO BE SOLVED: To enhance heat efficiency using a whole primary air type burner and to get better convenience by enlarging a heating power regulation range. SOLUTION: The gas cooling stove is switched to one row combustion, two-row combustion and three-row combustion according to setting of heating power. A primary air ratioλof mixed air of a lower stage flame hole part 13c burned at the one row combustion is made smaller than a primary air ratioλof mixed air of a middle stage flame hole part 13b and a turn down ration at the one row combustion is made large. Thereby, the heating power regulation range is enlarged as the whole of the gas cooking stove. Further, flame-retaining property is enhanced by arranging the burner burned at the one row combustion at the lowermost stage. COPYRIGHT: (C)2006,JPO&NCIPI
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