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US 9,453,640 B2Granted
Burner system with anti-flashback electrode
AssigneeClearsign Combustion Corporation
InventorsIgor A. Krichtafovitch, Joseph Colannino, Christopher A. Wiklof
Life of this patent
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Abstract
A premixed fuel and air combustion system includes an anti-flashback electrode configured to repel a charge concentration in a combustion fluid and reduce or prevent the flame from flashing back into a mixer.
Claims34
A premixed fuel burner, comprising:
- a body defining fuel and air mixing volume and a passage configured to allow flow of a premixed fuel jet;
- a charge source configured to apply a first polarity voltage or charge to a combustion fluid corresponding to the premixed fuel jet;
- and
- an anti-flashback electrode configured to carry a voltage at the first polarity and to electrically repel the first polarity charge in the combustion fluid.
1 more element
A method for reducing a possibility of flashback in a burner, comprising:
- premixing fuel and air in a mixing volume;
- outputting the premixed fuel and air as a premixed fuel stream;
- supporting a flame with the premixed fuel stream;
- applying a first voltage or charge at a first polarity to a combustion fluid corresponding to the fuel, the air, premixed fuel and air, the premixed fuel stream, or the flame;
- and
- applying a second voltage to an anti-flashback electrode disposed adjacent to the combustion fluid and arranged to repel the first voltage or charge from flowing upstream toward the premixed fuel and air.
3 more elements
Dependencies are inferred from the claim text.