| 摘要 |
A low NOx gas burner for heating objects having a supply of gas under pressure (30) which is to be mixed to achieve a combustible mixture, gas flow line (32) connecting to said burner to said supply, a burner means (34) for mixing air with said fluid fuel to achieve said combustible mixture, characterized by said burner means includes one or more jet forming means for issuing one or more jets of said gas having a given cross-sectional area and sweeping said one or more jets of gas in ambient air downstream of said burner means to mix air with said gas and achieve said combustible mixture a distance (D) spaced from any physical structure of said burner means whereby a flame front (FF) of burning combustible mixture has a broad shape and is spaced a predetermined distance from said burner.
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