Patent ID: 6599121
Filing Date: 2003-07-29
Classification: F23C,F23D

Abstract:
A premix burner for use in a heat generator, comprising:a swirl flow generator with means for the tangential introduction of a combustion air stream into a chamber of the swirl flow generator as well as means for introducing at least one gaseous and/or liquid fuel into the combustion air stream with concomitant formation of a swirl flow with an axial movement component up to a mouth of the premix burner, wherein the chamber contour changes in the flow direction from a cross-section that is largely rotation-symmetrical about a central longitudinal axis of the burner into a cross-section that is non-rotation-symmetrical about the central longitudinal axis, and wherein, when seen across the circumference, at least one section of the chamber wall in a downstream end part assumes a smaller slope in relation to the burner longitudinal axis than in an upstream part.