Patent application number | Description | Published |
20090214992 | METHODS OF COMBUSTION OF POWDERED FUELS AND POWDERED FUEL DISPERSIONS - Methods of combustion include metering a substantially explosible powder into an oxidizing gas using a positive displacement powder dispersion device to suspend the powder in the gas and directing the powder in the gas to form a controlled stream of a moving explosible powder dispersion. In some embodiments, the method further includes igniting the dispersion with an ignition source to produce a stationary deflagrating combustion wave and sustaining combustion by continuing to meter the powder into the gas. In other embodiments, the method further includes adjusting a nozzle velocity of the dispersion to reflect properties of the dispersion to create a sustainable flame and igniting the dispersion to produce a stationary deflagrating wave of the dispersion. In other embodiments, the method further includes igniting the dispersion in a combustion area to produce a stationary deflagrating wave such that a conductive heat transfer from combustion brings the powder to combustion temperature. | 08-27-2009 |
20090274985 | POWDERED FUEL CONVERSION SYSTEMS AND METHODS - The burner preferably exclusively burns substantially explosible solid fuels and preferably has instant ON-OFF thermostat control, wastes no energy preheating the enclosure or external air supply, achieves stable combustion the moment the powder-air mix is ignited in our burner, is used in the upward vertical mode except for oil burner retrofits, burns a solid fuel in a single-phase regime as if it were a vaporized liquid or gas, is designed to complete combustion within the burner housing itself rather than in a large, high temperature furnace enclosure which it feeds, has an ultra-short residence time requirement, is a recycle consuming burner with self-contained management of initially unburned particles, is much smaller, simpler and lower cost, has a wider dynamic range/turndown ratio, is more efficient in combustion completeness and thermal efficiency, and operates with air-fuel mix approximately at the flame speed. | 11-05-2009 |
20100055629 | POWDERED FUELS, DISPERSIONS THEREOF, AND COMBUSTION DEVICES RELATED THERETO - This application describes powdered fuels, methods of producing powdered fuels source, and dispersions of powdered fuels, as well as systems, kits, and methods for producing and adapting combustion devices to burn powdered fuel, either as a sole fuel source or in combination with existing fuel sources. Exemplary embodiments include engines and furnaces adapted to combust powdered fuel. | 03-04-2010 |
20150285494 | POWERED FUEL CONVERSION SYSTEMS - The burner preferably exclusively burns substantially explosible solid fuels and preferably has instant ON-OFF thermostat control, wastes no energy preheating the enclosure or external air supply, achieves stable combustion the moment the powder-air mix is ignited in our burner, is used in the upward vertical mode except for oil burner retrofits, burns a solid fuel in a single-phase regime as if it were a vaporized liquid or gas, is designed to complete combustion within the burner housing itself rather than in a large, high temperature furnace enclosure which it feeds, has an ultra-short residence time requirement, is a recycle consuming burner with self-contained management of initially unburned particles, is much smaller, simpler and lower cost, has a wider dynamic range/turndown ratio, is more efficient in combustion completeness and thermal efficiency, and operates with air-fuel mix approximately at the flame speed. | 10-08-2015 |
Patent application number | Description | Published |
20100055629 | POWDERED FUELS, DISPERSIONS THEREOF, AND COMBUSTION DEVICES RELATED THERETO - This application describes powdered fuels, methods of producing powdered fuels source, and dispersions of powdered fuels, as well as systems, kits, and methods for producing and adapting combustion devices to burn powdered fuel, either as a sole fuel source or in combination with existing fuel sources. Exemplary embodiments include engines and furnaces adapted to combust powdered fuel. | 03-04-2010 |
20110259250 | Systems And Methods For Converting Biomass In The Field To A Combustible Fluid For Direct Replacement Or Supplement To Liquid Fossil Fuels - Methods, systems, and devices convert biomass from the field to provide heat, motive working gas, electrical energy, or fuel such that the biomass directly replaces or supplements liquid fossil fuels wherever these fuels may be used. The methods include procedures for harvesting the biomass, reducing it to a transportable form, purifying it and blending additives as necessary, and finally reducing the refined biomass to an explosible particle size distribution generally finer than 80 mesh for heating applications or 200 mesh for application in internal or external combustion engines. The present invention preferably includes transportation of the finished powder to storage units at the end user site, where the fuel is used by continuous delivery, metering, and dispersal in air to produce a continuous supply of an explosible fluid dispersion for direct energy conversion. Systems of automatic production for a variety of applications are also described. | 10-27-2011 |