| 摘要 |
<p>A cylindrical burner with fan- assisted premixing of air and of fuel-gas is in the form of a tubular barrel (1) having flame outlet openings (3) obtained by punching of the metal and folding back of the edges of the opening to form radially outwardly extending projections or teeth (4) to form punchings spread along the whole periphery of the tubular barrel (1). A baffle (20) is arranged within the tubular barrel (1) to transform the iongitudinal motion of the gaseous mixture into a uniform radial motion. <IMAGE></p> |
