| 摘要 |
<p>A gas burner comprising a burner housing (1) having a mounting flange (2) by means of which the gas burner can be mounted on a heating boiler, the burner housing defining at least a part of a channel (K), into which channel a gas supply (6) and a combustion air supply (7) open, the gas burner further comprising a gas supply control valve (8) and a fan (10) for the forced supply of combustion air to the channel, the gas burner further comprising a burner head mounted in/on a downstream end (14) of the channel, said burner head (11) comprising a burner plate (11b) arranged concentrically relative to the longitudinal center line of the channel and at least one burner ring arranged concentrically relative to the burner plate. <IMAGE></p> |
