| 摘要 |
PURPOSE:To provide a safe and economical gas-heat carburettor, by arranging it in a double assembly structure wherein a porous combustion ring with a freely adjustable diameter is mounted upon the support portion of outer perforated ring adapted to adjust its vertical height and the expansible distance of support portion. CONSTITUTION:An outer ring 1 having an air hole 2 defined therethrough is provided with a supporting receptacle 3 adapted to freely adjust its downward expansible distance matching the diameter of combustion ring 4, and the combustion ring 4 having a plenty of small-diameter air pores 5 defined therethrough is mounted upon the supporting receptacle 3. The combustion ring 4 is formed by rolling a flat plate having an adjustable joint portion 6 at opposite ends thereof into a circular configuration, and has its diameter suitably adjusted to match that of gas burner and the like in an actual use. An air passes through the air hole 2 of outer ring 1 and then mixes with a gas adequately through the air pores 5 of combustion ring 4, and thereby ensuring its complete combustion. The carburettor is thus provided with an improved safe and cost-saving performance.
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