| 摘要 |
A premix burner has a mixing section ( 3 ) for a heat generator, sectional conical shells ( 5 ) which complement one another to form a swirl body, enclose a conically widening swirl space ( 6 ), and mutually define tangential air-inlet slots ( 7 ), along which feeds ( 8 ) for gaseous fuel are provided in a distributed manner, having at least one fuel feed ( 11 ) for liquid fuel, this fuel feed ( 11 ) being arranged along a burner axis (A) passing centrally through the swirl space ( 6 ), and having a mixing tube ( 4 ) adjoining the swirl body downstream via a transition piece ( 2 ). At least one additional fuel feed ( 13 ) for liquid fuel is provided in the region of the swirl body, the transition piece ( 2 ), and/or the mixing tube ( 4 ).
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