Pre-mixing burner comprises swirl burner with inner chamber, with widening passage, injector with adjustable elements.

摘要

The swirl generator (100) has an inner chamber (122) supplied by a current (141) of combustion air and into which at least one fuel (142) is fed. the end of the burner facing away from the current has a discontinuous widening of the axial cross-section in the passage to the burner -chamber (50). The burner has an injector (112) for conveying an axial central current (145) along a central burner axis (100a). The injector has adjustable elements (1122) for altering the cross-section of flow and for controlling the mass flow of the central current.