| Patent application number | Description | Published |
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| 20120317985 | ELECTRIC FIELD CONTROL OF TWO OR MORE RESPONSES IN A COMBUSTION SYSTEM - A combustion system may include a plurality of heated volume portions. At least two of the plurality of heated volume portions may include corresponding respective electrodes. The electrodes may be driven to produce respective electric fields in their respective volumes. The electric fields may be configured to drive desired respective responses. | 12-20-2012 |
| 20130004902 | METHOD AND APPARATUS FOR ELECTRODYNAMICALLY DRIVING A CHARGED GAS OR CHARGED PARTICLES ENTRAINED IN A GAS - Gaseous particles or gas-entrained particles may be conveyed by electric fields acting on charged species included in the gaseous or gas-entrained particles. | 01-03-2013 |
| 20130071794 | SYSTEM AND METHOD FOR FLATTENING A FLAME - A charge electrode configured to impart a time-varying majority charge on a flame and a shape electrode located outside the flame may be driven synchronously by a voltage source through time varying voltage(s). The flame may be flattened or compressed responsive to an electric field produced by the shape electrode acting on the charges imparted on the flame. | 03-21-2013 |
| 20130170090 | METHOD AND APPARATUS FOR ENHANCING FLAME RADIATION - An apparatus for enhancing flame radiation includes a flame charging system and an electrically isolated electrode. A time-varying voltage is applied to the flame charging system and the flame charging system imparts a corresponding time-varying charge or time-varying voltage onto the flame. The flame responds to the time-varying charge or voltage by increasing its luminosity. | 07-04-2013 |
| 20130230810 | INERTIAL ELECTRODE AND SYSTEM CONFIGURED FOR ELECTRODYNAMIC INTERACTION WITH A FLAME - An inertial electrode launcher may be configured to project charged particles or a voltage comprising an inertial electrode proximate a flame or combustion gas produced by the flame. | 09-05-2013 |
| 20130230811 | INERTIAL ELECTRODE AND SYSTEM CONFIGURED FOR ELECTRODYNAMIC INTERACTION WITH A VOLTAGE-BIASED FLAME - A combustion system includes a subsystem for electrically biasing or charging a flame and a virtual electrode launcher configured to launch a virtual electrode in proximity to the flame or combustion gas produced by the flame. | 09-05-2013 |
| 20130255549 | SOLID FUEL BURNER WITH ELECTRODYNAMIC HOMOGENIZATION - A solid fuel burner may include a system for electrodynamic homogenization. One or more electrodes may apply an electric field to burning solid fuel or a region proximate the burning solid fuel. The electric field causes mixing and homogenization of volatilized fractions of the solid fuel, combustion gases, and air. The improved mixing and homogenization may reduce emission of carbon monoxide (CO), reduce emission of oxides of nitrogen (NOx), reduce oxygen in flue gas, increase temperature of flue gas, and/or allow for a larger grate surface. | 10-03-2013 |
| 20130260321 | COOLED ELECTRODE AND BURNER SYSTEM INCLUDING A COOLED ELECTRODE - According to embodiments, an electrode configured to provide an electric field to a flame or combustion gas produced by a flame may receive heat from the flame or the combustion gas. The electrode may be cooled to remove the heat received from the flame or combustion gas. | 10-03-2013 |
| 20140170571 | COMBUSTION CONTROL ELECTRODE ASSEMBLIES, SYSTEMS, AND METHODS OF MANUFACTURING AND USE - Combustion control electrode assemblies, combustion control systems using such assemblies, and methods of manufacturing and using such assemblies are disclosed. The electrode assemblies may include one or more electrodes including a sintered refractory metal material for heat and/or wear resistance. In an embodiment, an electrode assembly for a combustion control system may include at least one substrate and at least one electrode formed on the at least one substrate. The at least one electrode may include a sintered refractory metal material. The at least one electrode may be configured to be mounted proximate to or contacting a flame. The electrode assembly may further include at least one voltage source operatively coupled to the at least one electrode. The at least one electrode and the at least one voltage source may be collectively configured to apply an electric field to one or more regions at least proximate to the flame. | 06-19-2014 |
| 20140208758 | GAS TURBINE WITH EXTENDED TURBINE BLADE STREAM ADHESION - A gas turbine may include turbine blades configured to improve stream adhesion by selectively attracting or reducing repulsion of charged particles carried by a combustion gas stream. | 07-31-2014 |
| 20140212820 | BURNER SYSTEM INCLUDING AT LEAST ONE COANDA SURFACE AND ELECTRODYNAMIC CONTROL SYSTEM, AND RELATED METHODS - Embodiments of the invention are directed to a burner system including at least one Coanda surface and at least two electrodes that are biased in a manner to influences a location of fuel flow relative to the at least one Coanda surface and related methods. In an embodiment, a burner system includes at least one Coanda surface, at least one nozzle positioned and configured to emit a fuel flow at least proximate to the at least one Coanda surface, at least two electrodes, and a voltage source operably coupled to the at least two electrodes. The voltage source may be configured to bias the at least two electrodes to generate an electric field at least proximate to the at least one Coanda surface that influences a location of the fuel flow and/or a flame relative to the at least one Coanda surface. | 07-31-2014 |
| 20140216401 | COMBUSTION SYSTEM CONFIGURED TO GENERATE AND CHARGE AT LEAST ONE SERIES OF FUEL PULSES, AND RELATED METHODS - A pulsed electrical charge or voltage may be applied to a pulsed fuel stream or combustion reaction supported by the fuel stream. The pulsed charge or voltage may be used to affect fuel mixing, flame trajectory, heat transfer, emissivity, reaction product mix, or other physical property of the combustion reaction. | 08-07-2014 |
| 20140248566 | COMBUSTION SYSTEM INCLUDING ONE OR MORE FLAME ANCHORING ELECTRODES AND RELATED METHODS - In an embodiment, a combustion system includes a burner, at least one charging electrode, flame anchoring electrode(s), and at least one voltage power supply. The burner is configured to discharge fuel into a combustion volume in which the fuel and an oxidizer are ignited to generate a flame. The charging electrode is positioned proximate to the flame. The charging electrode provides charges to the flame to generate a charged flame. The flame anchoring electrode(s) are disposed adjacent to the burner and proximate to a base portion of the charged flame. The voltage power supply is electrically coupled to each of the flame anchoring electrode(s) and the charging electrode. The at least one voltage power supply applies one or more electrical potentials to each of the flame anchoring electrode(s) so that the charged flame is anchored at a predetermined location. | 09-04-2014 |
| Patent application number | Description | Published |
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| 20130323655 | BURNER SYSTEM WITH ANTI-FLASHBACK ELECTRODE - 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. | 12-05-2013 |
| 20130333279 | FLAME ENHANCEMENT FOR A ROTARY KILN - A rotary kiln includes a stationary burner and at least one electrode configured to apply an electric field and/or voltage to a flame supported by the stationary burner. The electric field may contain the flame and/or accelerate combustion to shift most heat transfer from the flame from radiation heat transfer to convective heat transfer. | 12-19-2013 |
| 20130336352 | ELECTRICALLY STABILIZED DOWN-FIRED FLAME REACTOR - A down-fired flame burner includes a flame charger and one or more field electrodes configured to control flame shape and/or heat transfer to a chemical reactor. | 12-19-2013 |
| 20140038113 | ACOUSTIC CONTROL OF AN ELECTRODYNAMIC COMBUSTION SYSTEM - A system is configured to apply a voltage, charge, and/or an electric field to a combustion reaction responsive to acoustic feedback from the combustion reaction. | 02-06-2014 |
| 20140050644 | CHARGE-INDUCED SELECTIVE REDUCTION OF NITROGEN - A selective catalytic reduction system (SCR) or selective non-catalytic reduction (SNCR) system include a reagent charging apparatus configured to apply one or more electrical charges to a NOx reducing reagent. The electrical charges enhance mixing of the reagent with fluids carrying NOx and/or enhance reactivity of the reagent with NOx. | 02-20-2014 |
| 20140051030 | SYSTEM AND SACRIFICIAL ELECTRODE FOR APPLYING ELECTRICITY TO A COMBUSTION REACTION - A sacrificial electrode and sacrificial electrode feeder are configured to apply electricity to a combustion reaction. The electricity can be applied as a voltage, charge, and/or electric field. The sacrificial electrode may be consumed by the combustion reaction. The sacrificial electrode can optionally include a reactant or catalyst selected to interact with the combustion reaction. | 02-20-2014 |
| 20140065558 | ELECTRICALLY STABILIZED BURNER - An electrically stabilized burner is configured to support a combustion reaction such as a combustion reaction substantially at a selected fuel dilution and with a mixing rate selected to maximize the reaction rate without quenching the combustion reaction. | 03-06-2014 |
| 20140162195 | SYSTEM FOR SAFE POWER LOSS FOR AN ELECTRODYNAMIC BURNER - A system may be configured to modify one or more combustion parameters responsive to a loss of application of electrical energy to the combustion reaction. | 06-12-2014 |
| 20140170569 | ELECTRICALLY CONTROLLED COMBUSTION SYSTEM WITH CONTACT ELECTROSTATIC CHARGE GENERATION - A system for electrically controlling a combustion reaction includes a charging mechanism with a surface of a charging material with a work function that is sufficiently different from a work function of a charge carrier material to be capable of undergoing contact electrostatic charging. The charge carrier material is contacted with the charging material to impart an electrostatic charge to the charge carrier material, which is then fed to the combustion reaction to introduce a charge corresponding to the electrostatic charge. An aspect of the combustion reaction is controlled by application, to the combustion reaction, of electrical energy, characteristics of which are selected to interact in a predictable way with the combustion reaction. | 06-19-2014 |
| 20140170576 | CONTAINED FLAME FLARE STACK - A flare stack may be equipped with an electrical energy application system configured to apply electrical energy to a flare stack combustor. The applied electrical energy may be selected to affect flare flame length, flare flame containment, and/or flare flame exhaust gas composition. | 06-19-2014 |
| 20140170577 | BURNER HAVING A CAST DIELECTRIC ELECTRODE HOLDER - A burner may include a dielectric body configured to hold one or more electrodes in proximity to a combustion reaction. The dielectric body may be cast from a refractory material. The one or more electrodes may be cast into the dielectric body. The dielectric body and the electrodes may be configured for installation, removal, and replacement as a unit. | 06-19-2014 |
| 20140234786 | OSCILLATING COMBUSTOR WITH PULSED CHARGER - 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. | 08-21-2014 |
| 20140234789 | OSCILLATING COMBUSTOR - An oscillating combustor may support a time-sequenced combustion reaction having rich and lean phases. The rich and lean phases may be determined according to a flame position relative to a diverging fuel jet. The flame location may be modulated responsive to an interaction between applying a constant voltage or charge rate to a fuel stream or flame, and modulating continuity between a conductive or semiconductive flame holder and an activation voltage. | 08-21-2014 |
| 20140251191 | ELECTRICALLY-DRIVEN CLASSIFICATION OF COMBUSTION PARTICLES - In a combustion system, a charge source is configured to cooperate with a collection plate and a director conduit to cause at least one particle charge-to-mass classification to be reintroduced to a flame for further reaction. | 09-11-2014 |
| 20140255856 | FLAME CONTROL IN THE BUOYANCY-DOMINATED FLUID DYNAMICS REGION - A burner system includes a nozzle configured to emit a fuel stream for the support of a flame, and first and second electrodes, each configured to apply electrical energy to a flame supported by the nozzle. The first electrode is positioned in a momentum-dominated fluid dynamics region of the flame, while the second electrode is positioned in a buoyancy-dominated fluid dynamics region. Application of charges to the flame via the electrodes can be employed to control flame characteristics in the buoyancy-dominated fluid dynamics region, such as shape and position. | 09-11-2014 |
| 20140272731 | FLAME CONTROL IN THE MOMENTUM-DOMINATED FLUID DYNAMICS REGION - A combustion system includes a fuel nozzle and first and second electrodes. An electric charge is applied to a flame supported by the nozzle via the first electrode. An electrical potential applied to an aerodynamic surface of the second electrode. The electrically charged flame reacts to the electrical potential according to the respective magnitudes and polarities of the charge applied to the flame and the electrical potential applied to the aerodynamic surface. Where the polarities are the same, the flame is repelled by the aerodynamic surface, and where the polarities are in opposition, the flame is pulled into contact with the aerodynamic surface by the electrodynamic attraction. | 09-18-2014 |
| 20150024331 | ELECTRIC FIELD CONTROL OF TWO OR MORE RESPONSES IN A COMBUSTION SYSTEM - A combustion system may include a plurality of heated volume portions. At least two of the plurality of heated volume portions may include corresponding respective electrodes. The electrodes may be driven to produce respective electric fields in their respective volumes. The electric fields may be configured to drive desired respective responses. | 01-22-2015 |
| 20150064086 | ELECTRIC REAGENT LAUNCHER FOR REDUCTION OF NITROGEN - A selective catalytic reduction system (SCR) or selective non-catalytic reduction (SNCR) system include a reagent charging apparatus configured to apply one or more electrical charges to a NOx reducing reagent. The electrical charges enhance mixing of the reagent with fluids carrying NOx and/or enhance reactivity of the reagent with NOx. | 03-05-2015 |
| 20150079524 | LIFTED FLAME LOW NOx BURNER WITH FLAME POSITION CONTROL - A low NOx burner includes a charging mechanism to charge a fuel stream or diluted fuel stream. A flame supported by the charged fuel stream can be held at a lifted location corresponding to high fuel dilution. If electrical power is lost or removed, the flame is shifted to a location corresponding to a lower fuel dilution. | 03-19-2015 |
