Patent ID: 6918256
Filing Date: 2005-07-19
Classification: F23C,F23D,F23R

Abstract:
1. A premixing burner for the reduction of combustion-driven oscillations within a combustion system, in particular a combustion chamber of a turbomachine, essentially comprising a swirl generator consisting of two semimonocoque conically widening part bodies which are arranged axially parallel, and offset to one another, in such a way that they form tangential gaps in two overlap regions located mirror-symmetrically opposite one another, said gaps serving as inlet ducts for the combustion air into the burner interior, furthermore comprising at least one central fuel nozzle within the interior enclosed by the part bodies, wherein the central fuel nozzle is designed in the form of a coaxially oriented burner lance and projects into the burner interior up to at least one third of the axial length of the latter, and the burner lance is equipped, at least in its downstream end region, with means for the discharge of at least one fluid into the burner interior; wherein the burner lance terminates in a range of between 60% and 80% of the axial length of the burner interior.