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US 2014/0234786 A1Published application
Oscillating combustor with pulsed charger
AssigneeClearsign Combustion Corporation
InventorsRoberto RUIZ, Joseph COLANNINO, Igor A. KRICHTAFOVITCH, Christopher A. WIKLOF
Life of this patent
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Abstract
An oscillating combustor can support a time-sequenced combustion reaction having rich and lean phases by applying a variable voltage charge to a fuel stream or flame that flows adjacent to a conductive or semiconductive flame holder held in electrical continuity with an activation voltage.
Claims46
An oscillating combustor, comprising:
- a fuel nozzle configured to emit an expanding area fuel jet;
- a first flame holder disposed distally along the fuel jet;
- a second flame holder disposed proximally along the fuel jet;
- and
- a variable-charge ionizer configured to apply a time-varying charge to the fuel jet or a flame supported by the fuel jet;
- wherein the time-varying charge is selected to cause a flame front supported by the fuel jet to oscillate in position between the first and second flame holders.
3 more elements
A method for supporting an oscillating combustion reaction, comprising:
- outputting a continuous rate, expanding area fuel jet;
- supporting a combustion reaction with the fuel jet;
- providing a first flame holder disposed distally along the fuel jet;
- providing an second flame holder disposed proximally along the fuel jet;
- maintaining electrical continuity between the second flame holder and an activation voltage;
- and
- modulating a charge applied to the fuel jet or the combustion reaction;
- wherein modulating the charge applied to the fuel jet or the combustion reaction includes periodically applying the charge to the fuel jet or the combustion reaction to cause the to cause the combustion reaction to be held by the second flame holder and periodically discontinuing the charge to the fuel jet or the combustion reaction to cause the combustion reaction to be held by the first flame holder.
5 more elements
Dependencies are inferred from the claim text.