Premixing burner arrangement for operating a combustion...

Details Premixing burner arrangement for operating a combustion... Premixing burner arrangement for operating a combustion...

2011-03-01

2011-03-01

Basichas, Alfred (Department: 3743)

Combustion

Process of combustion or burner operation

Flame shaping, or distributing components in combustion zone

C431S350000, C431S008000, C431S351000

Reexamination Certificate

active

07896646

ABSTRACT:
A premixing burner is disclosed for operating a combustion chamber with a liquid and/or gaseous fuel, with a swirl generator for a combustion inflow air stream for forming a swirl flow, and with injection of fuel into the swirl flow. The swirl generator is adjacent to the combustion chamber indirectly via a mixing zone or directly, in each case via a burner outlet, a cross-sectional widening at the burner outlet being provided which, is discontinuous in the flow direction of the swirl flow and through which the swirl flow bursts open so as to form a backflow zone. A contour locally narrowing the flow cross section of the swirl generator or of the mixing zone in the flow direction can be provided upstream of the burner outlet.

REFERENCES:
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patent: 6186775 (2001-02-01), Jansohn et al.
patent: 2003/0074885 (2003-04-01), Rakke
patent: 2007/0259296 (2007-11-01), Knoepfel
patent: 0 210 462 (1987-02-01), None
patent: 0 321 809 (1989-06-01), None
patent: 0 849 531 (1998-06-01), None

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