Patent ID: 6027331
Filing Date: 2000-02-22
Classification: F23C,F23D

Abstract:
A burner for operating a heat generator, the burner comprising:a swirl generator for a combustion-air flow, said swirl generator having an upstream end and a downstream end, a direction of flow extending from said upstream end toward said downstream end along a burner axis, and a plurality of swirl generating inlet ducts each having two sides;means for injecting at least one fuel into the combustion-air flow;a mixing section arranged downstream of the swirl generator, said mixing section including transition passages for passing downstream a flow formed in the swirl generator;a mixing tube arranged downstream of the transition passages, the flow from the transition passages passing into the mixing tube;wherein the injecting means comprises a fuel injector row on each side of each swirl-generating inlet duct;wherein each of the two rows of fuel injectors forms an injection level which increases from the tip to the outlet of the swirl generator.