Patent ID: 6019596
Filing Date: 2000-02-01
Classification: F23C,F23D

Abstract:
A burner comprising: a swirl generator for admitting a combustion-air flow and including at least one fuel nozzle for injecting at least one fuel into the combustion-air flow and forming a flow in a direction through the swirl generator to a mixing section and to a combustion space, thereby defining a downstream flow direction, a mixing section being arranged downstream of the swirl generator and having, inside a first part of the mixing section in the downstream direction of flow, at least one transition passage for passing the flow formed in the swirl generator into a mixing tube arranged downstream of the at least one transition passage, and the mixing tube being arranged in an upstream flow direction from the combustion space and having at least one bore which runs through a wall of the mixing tube, including a means in a downstream region of the mixing tube for cooling a base plate formed by a front wall of the combustion space whereby the means for cooling includes an ambient air quantity which performs cooling by way of impingement cooling, and wherein the ambient air quantity used with the means for cooling is passed into the flow in the mixing tube through the at least one bore which runs through the wall of the mixing tube.