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US 12,379,105 B2Granted
Enriched air stove
OwnerAndrew C. Kularinventor
Life of this patent
Estimating the term…
Abstract
An enriched air stove having a combustion surface for supporting solid fuel for combustion and an oxygen enriched air intake fluidly connected to the combustion surface to provide an oxygen enriched air source. The combustion surface can be a baseplate comprising a plurality of apertures fluidly connected to an air mixing chamber to mix atmospheric air and enriched oxygen to assist combustion of the solid fuel.
Claims18
An enriched air stove comprising:
- a baseplate comprising a plurality of apertures;
- a combustion chamber for supporting a solid fuel on the baseplate, the combustion chamber defined by one or more sidewalls extending upward from the baseplate, at least one of the one or more sidewalls extending at an angle of greater than 90° relative to the baseplate to radiate heat in an upward direction;
- a temperature sensor for sensing temperature above the baseplate;
- an air mixing chamber below the baseplate, the air mixing chamber fluidly connected to the combustion chamber through the plurality of apertures in the baseplate, the air mixing chamber directing air through the plurality of apertures in the baseplate to the combustion chamber;
- an atmospheric air intake fluidly connected to the air mixing chamber comprising an atmospheric air regulator to control a flow rate of atmospheric air entering the air mixing chamber, the atmospheric air intake comprising a blower;
- an oxygen enriched air intake fluidly connected to the air mixing chamber, the oxygen enriched air intake connected to an oxygen enriched air source and an oxygen enriched air regulator, the oxygen enriched air source comprising a gas mixture composed primarily of nitrogen and oxygen with an oxygen content of above 21% and up to 50% by volume;
- and
- a controller connected to the temperature sensor and the oxygen enriched air regulator to control the oxygen enriched air regulator and the atmospheric air regulator to adjust the flow rate of oxygen enriched air and atmospheric air to the air mixing chamber, wherein the controller adjusts the flow rate of oxygen enriched air and atmospheric air entering the air mixing chamber based on the temperature above the baseplate.
5 more elements
A method of burning solid fuel comprising:
- putting solid fuel into a combustion chamber, the combustion chamber defined by a combustion surface comprising a baseplate with a plurality of apertures and one or more sidewalls extending upward from the baseplate, at least one of the one or more sidewalls extending at an angle of greater than 90° relative to the baseplate;
- igniting the solid fuel in the combustion chamber;
- supplying oxygen enriched air from an oxygen enriched air source through a enriched air regulator at an enriched oxygen intake and supplying atmospheric air through an atmospheric air regulator at an atmospheric air intake to an air mixing chamber below the baseplate to provide oxygen enriched combustion air, the air mixing chamber fluidly connected to the combustion chamber through the plurality of apertures in baseplate of the combustion surface, the oxygen enriched air comprising a gas mixture of primarily of nitrogen and oxygen and having an oxygen content of above 21% and up to 50% by volume;
- combusting the solid fuel in the presence of the oxygen enriched combustion air;
- measuring a temperature above the combustion surface during combustion;
- and
- during combustion, controlling the oxygen enriched air regulator at the enriched oxygen intake to adjust a flow rate of oxygen enriched air to the air mixing chamber and controlling an atmospheric air regulator to adjust a flow rate of atmospheric air to based on the measured temperature above the combustion surface.
4 more elements
Dependencies are inferred from the claim text.