| 摘要 |
PROBLEM TO BE SOLVED: To excellently maintain burning performance even when improving heating efficiency of a cookpot by bringing the cookpot closer to a flame. SOLUTION: Secondary air B is supplied up to the tip from a base part of the flame by the constitution for extending the tip of a collar part 20c of a tripod 20 downward to the ring center so that a horizontal position from an outer peripheral surface of a main flame port 16a of a burner head 16 is positioned within 30 mm. As a result, even if the heating efficiency to the cookpot P is increased by bringing the cookpot P closer to the burner head 16 by lowering the height of a tripod claw 20b, the burning performance is excellently maintained. COPYRIGHT: (C)2003,JPO
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