摘要：

A premix burner has a mixing section () for a heat generator, sectional conical shells () which complement one another to form a swirl body, enclose a conically widening swirl space (), and mutually define tangential air-inlet slots (), along which feeds () for gaseous fuel are provided in a distributed manner, having at least one fuel feed () for liquid fuel, this fuel feed () being arranged along a burner axis (A) passing centrally through the swirl space (), and having a mixing tube () adjoining the swirl body downstream via a transition piece (). At least one additional fuel feed () for liquid fuel is provided in the region of the swirl body, the transition piece (), and/or the mixing tube ().

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