Patent ID: 7428817

Claim:
A premix burner comprising: a swirl generator which delimits a conical swirl space and provides at least two conical part shells which are arranged, offset to one another, along a burner axis (A), mutually enclose in each case air inlet slits running longitudinally with respect to the burner axis (A) and have in combination a conically widening premix burner outer contour having a maximum outside diameter (A max ) which narrows axially into a region with a minimum outside diameter (A min ); wherein at least one conical part shell provides, in a region between a maximum and a minimum outside diameter, a reception unit which deviates from a conically widening premix burner outer contour and locally elevates the premix burner outer contour radially outward and which has a maximum radial extent (R max ) which is dimensioned smaller than half a maximum outside diameter (A max ) of the premix burner outer contour; and wherein, within the reception unit, at least one hollow duct is provided, with at least one duct orifice facing away from the swirl space and with a duct longitudinal extent which runs essentially parallel to the burner axis (A).