| 摘要 |
Burner (1) for a gaseous fuel comprising a distributing zone (2) surrounded by an outer wall (4) of a porous medium, an air supply tube (9) debouching in the distributing zone (2), a fuel supply tube (12), and a mixing head (13) arranged in the air supply tube (9), which mixing head (13) comprises a box (15) in which the fuel supply tube (12) debouches and open-ended mixing tubes (23 and 24), which extend through the box (15), wherein the part of the wall of a mixing tube (24 or 25) located in the box (15) is provided with openings (29). |
