| Patent application number | Description | Published |
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| 20130037657 | VORTEX GENERATORS - A vortex generator, or an array of vortex generators, for attenuating flow separation during flow of fluid over a surface. Vortex generators include a base with a forward end and a leading edge extending outward and rearward from the forward end to an outward end. The leading edge includes a first angular discontinuity at a height H | 02-14-2013 |
| 20130142632 | SUPERSONIC COMPRESSOR - A supersonic compressor including a rotor to deliver a gas at supersonic conditions to a diffuser. The diffuser includes a plurality of aerodynamic ducts that have converging and diverging portions, for deceleration of gas to subsonic conditions and then for expansion of subsonic gas, to change kinetic energy of the gas to static pressure. The aerodynamic ducts include vortex generating structures for controlling boundary layer, and structures for changing the effective contraction ratio to enable starting even when the aerodynamic ducts are designed for high pressure ratios, and structures for boundary layer control. In an embodiment, aerodynamic ducts are provided having an aspect ratio of in excess of two to one, when viewed in cross-section orthogonal to flow direction at an entrance to the aerodynamic duct. | 06-06-2013 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 20140338350 | GAS TURBINE WITH COULOMBIC THERMAL PROTECTION - A gas turbine is configured to operate with a high temperature combustion gas stream. The gas turbine may include a combustor that provides a combustion gas stream including charged particles and at least one turbine stage including at least one high temperature surface that may be driven with a voltage selected to repel the charged particles. The at least one high temperature surface may output a film-cooling layer including cool air, the film-cooling layer being stabilized by Coulombic forces between the voltage and the charged particles. | 11-20-2014 |
| 20150107260 | GAS TURBINE AND GAS TURBINE AFTERBURNER - A gas turbine afterburner includes a gutter electrode that helps to hold an afterburner flame. A charge source applies a majority charge to be carried by a turbine exhaust gas. Electrical attraction between the majority charge and the gutter electrode helps to hold the afterburner flame. | 04-23-2015 |
| 20150118629 | BURNER WITH FLAME POSITION ELECTRODE ARRAY - A burner includes a flame positioning mechanism. The flame positioning mechanism includes a flame charger, a plurality of electrodes placed a respective distances along a fuel stream propagation path, and an electrode switch configured to place a subset of the plurality of electrodes into electrical continuity with a holding voltage. Current flow between the flame charge and the holding voltage anchors the flame to an electrode placed into electrical continuity with the holding voltage. | 04-30-2015 |
| 20150121890 | HIGH VELOCITY COMBUSTOR - A combustor provides reaction anchoring by injecting a voltage or charge into an exothermic reaction such as aflame, and anchoring the exothermic reaction to a conductive surface positioned adjacent to a fuel jet nozzle. | 05-07-2015 |
| 20150147705 | LOW NOx LIFTED FLAME BURNER - Nitrogen oxides (NOx) generated by a fuel burner is reduced by anchoring the flame to a conductive anchor disposed a lift distance from a fuel nozzle, using a voltage applied to the flame. | 05-28-2015 |
| 20150219333 | ELECTRODYNAMIC COMBUSTION SYSTEM WITH VARIABLE GAIN ELECTRODES - Technologies are presented for selecting an electrode gain value for applying electricity to control a combustion reaction. For example, a system can include one or more electrodes, an electrode gain selector configured to select an operative electrode gain value for the one or more electrodes, and a power supply operatively coupled to the one or more electrodes. The power supply can be configured to apply the electricity to the combustion reaction via the one or more electrodes at the operative electrode gain value. | 08-06-2015 |
| 20150226424 | METHOD AND APPARATUS FOR SHAPING A FLAME - A flame may be selectively shaped by application of one or more electric fields, charge, or voltage proximate the flame. | 08-13-2015 |
| 20150276211 | FLAME CONTROL IN THE FLAME-HOLDING REGION - A combustion system includes a fuel nozzle, a charge source, a discharge electrode, and a voltage supply coupled to the charge source and discharge electrode. The charge source is configured to apply a polarized charge to a flame supported by the nozzle, and the discharge electrode is configured to attract a flame-front portion of the flame to hold the flame for flame stability. The discharge electrode can be toroidal in shape, positioned coaxially with the nozzle downstream from the nozzle. The voltage supply is configured to hold the charge source at a charge potential and the discharge electrode at the discharge potential. The nozzle can be configured to apply the polarized charge to a fuel stream emitted by the nozzle, whereafter the charge is passed to the flame upon combustion of the fuel. | 10-01-2015 |
| Patent application number | Description | Published |
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| 20120212592 | ADJUSTMENT SYSTEM FOR DIPVERGENCE AND/OR CONVERGENCE OF A STEREOSCOPIC IMAGE PAIR - An adjustment system for use in a stereoscopic imaging system for adjusting the dipvergence and/or convergence of a displayed stereo image pair. A plano-plano window is mounted for tilting in one of the image paths thereby to enable the correction of dipvergence shifts, the adjustment of convergence or both. | 08-23-2012 |
| 20120212813 | MAXIMIZING ILLUMINATION FIBER IN AN ENDOSCOPE - A stereoscopic endoscope includes a proximal main body, an outer tube extended to a distal end of the endoscope and a pair of optical train subassemblies. Distal and proximal inserts in the distal and proximal ends of the outer tube, respectively, support the optical train subassemblies. First and second optical fiber bundles substantially fill all of the voids between the inner surface of the outer tube and the outer surfaces of the inserts and the optical train subassemblies. | 08-23-2012 |
| 20130301148 | OPT0-MECHANICAL APPARATUS ADAPTED FOR MOUNTING OPTICAL ELEMENTS WITH SMALL CROSS SECTIONS - An opto-mechanical assembly including a housing and an internally supported optical element, such as a lens, mounted along an axis. At least one of the housing and optical element includes a radially extending chamber. Adhesive disposed in the chamber interacts with the housing and the optical element to prevent axial motion between the optical element and housing. | 11-14-2013 |
| 20130301149 | OPT0-MECHANICAL DEVICES WITH SHARP-EDGE LENSES - An opto-mechanical device, such as a lens cell, includes a housing having an axially extending chamber and an intermediate internal spacer that positions a sharp-edged lens in the chamber. The sharp-edged lens has first and second optical surfaces that intersect in a circumferential sharp edge. The housing positions an image sensor proximal to the sharp-edged lens for processing light therefrom. | 11-14-2013 |
| 20150241688 | Opto-Mechanical Devices with Sharp-Edge Lenses - An opto-mechanical device, such as a lens cell, includes a housing having an axially extending chamber and an intermediate internal spacer that positions a sharp-edged lens in the chamber. The sharp-edged lens has first and second optical surfaces that intersect in a circumferential sharp edge. The housing positions an image sensor proximal to the sharp-edged lens for processing light therefrom. | 08-27-2015 |
