| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas range provided with internal-port burners which can heat all over the center of a pot with an intensive thermal power, hardly generating CO in the vicinity of the periphery of the burner, and not making combustion noises. SOLUTION: The gas range is provided with an internal-port burner and a grate with an annular straightening vane. The burner is not provided with a draft port at its center, and a secondary air does not flow into the internal periphery of the flame from the center of the burner. The burner port is of a shape of a frustum of circular cone having a port side-wall and a bottom face, its bottom face is positioned at a small end face, and the great end face of the port is made open. The straightening vane is planar, it is obliquely inclined downward from the internal edge of the vane to the external edge thereof. The external edge of the vane is positioned at the lower edge of a skirt part, or the internal edge of the vane is positioned within the skirt, or at the lower space formed of the skirt part. The grate is positioned apart from the burner, the internal edge of the straightening vane is positioned above the peripheral part of the burner upper edge.
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