BURNER FOR GASEOUS FUEL

摘要

A gas-fueled burner which produces a concentrated, rotating flame has a body (2) including a plenum chamber (6) into which gas and primary combustion air are introduced through a standard nozzle. The chamber (6) is defined and delimited on its upper side by a roof element (4) provided with a plurality of relatively narrow passageways (8) for the gas/air mixture. The passageways (8) lead from the plenum chamber (6) upwards and inwards to the upper, outside face of the burner. Each passageway (8) is set an angle ( beta ) with a plane perpendicular to the vertical axis of the burner. A vertical plane substantially passing through each passageway (8) is tangential to an imaginary vertical cylinder (10) passing through the centre of the burner.