Premix burner with a swirl generator delimiting a conical...

Details Premix burner with a swirl generator delimiting a conical... Premix burner with a swirl generator delimiting a conical...

2008-09-30

2008-09-30

Casaregola, Louis J (Department: 3746)

Power plants

Combustion products used as motive fluid

Combustion products generator

C060S748000, C060S803000, C431S354000

Reexamination Certificate

active

11502468

ABSTRACT:
A premix burner is disclosed, with 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, mutually enclose in each case air inlet slits running longitudinally with respect to the burner axis and have in combination a conically widening premix burner outer contour having a maximum outside diameter which narrows axially into a region with a minimum outside diameter. At least one conical part shell provides, in the region between the maximum and the minimum outside diameter, a reception unit which deviates from the conically widening premix burner outer contour and locally elevates the premix burner outer contour radially outward and which has a maximum radial extent which is dimensioned smaller than half the maximum outside diameter of the premix burner outer contour. 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.

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