Combustion – Process of combustion or burner operation – Starting or shutdown procedure
Reexamination Certificate
2006-03-16
2009-11-17
Price, Carl D (Department: 3749)
Combustion
Process of combustion or burner operation
Starting or shutdown procedure
C431S002000, C431S079000, C431S254000, C431S256000
Reexamination Certificate
active
07618254
ABSTRACT:
A method for igniting a fuel/oxidant mixture in an industrial furnace. At least one fuel supply conduit and at least one oxidant supply conduit is provided, each conduit having an opening that opens on a side of the burner head that faces the furnace interior space. Fuel and oxidant are supplied to the burner head, and a light detector for detecting ultraviolet light, or other light wavelengths, is provided for detecting light that indicates the presence of a flame. A laser is positioned to emit a laser beam onto a point on the burner head adjacent the conduit outlets and to heat that point to a temperature exceeding the ignition temperature of the fuel/oxidant mixture. When the burner has ignited, the detector emits a signal to a control circuit that extinguishes the laser beam.
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AGA AB
Mangels Alfred J.
Price Carl D
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