| 摘要 |
<p>This invention is related to a gas burner with air injection, adapted to be operated with flow rates which can be varied within a very wide range of flow rate values, especially with very low flow rates, comprising gas inlet means 1, air inlet means 2 and a divergent conduit 3 wherein said air and said gas are mixed to form an air/gas mixture, the end portion of said divergent conduit being provided with at least two air and/or gas inlet stages 30, 31, wherein the minimum inner diameter of the second one of said inlet stage is at least substantially equal to the inner diameter of the end of the first one of said stages. <IMAGE></p> |
