MX2014009187A - Stove assembly with l-shaped combustion chamber in an enclosing body. - Google Patents

Abstract

A stove assembly comprising a) an L-shaped combustion chamber comprising a vertical portion for burning fuel and a horizontal portion with an opening for entry of fuel and air, b) a hollow enclosing body which encloses the L-shaped combustion chamber, said enclosing body comprising, i) a tapered portion, and ii) a cut out portion towards the bottom of the enclosing body, said cut out portion designed to enable the enclosing body to fit on to the horizontal portion of the combustion chamber such that leakage of air is restricted at the intersection of the enclosing body and horizontal portion of the combustion chamber. The stove assembly can be further installed within a variety of containments (e.g., outside body, traditional stoves, frames / stands and the like). Methods for assembling and using the stove assembly are also disclosed.

Description

ENSIMBLIDO AND "L" IN A CLOSURE BODY.

FIELD OF THE INVENTION The following invention is related to the field of stoves.

Particularly, the present invention is related to a combustion stove assembly that burns biomass or other fuel.

BACKGROUND In the absence of access to modern fuels, rural consumers were forced to use biomass in poorly designed clay stoves and other independent stoves that emitted dangerous and unpleasant smoke. Also due to poor design and lack of air flow, the fuel was not properly burned, which leads to poor heating, harmful emissions and fuel wastage.

The present invention in its different embodiments, provides a stove and methods of work and assembly which, with its structure and arrangements, addresses the limitations of the stoves currently used, providing better heating, reduction in radiation losses, conservation of fuel, and less harmful emissions.

OBJECTIVES OF THE INVENTION The object of the present invention is to provide a stove that offers the following advantages: a) Effective heating emphasizing fuel conservation. b) Less smoke and harmful emissions aimed at improving the health of users. c) Elimination of the need to provide air containing oxygen through manual means (for example, blowing) or mechanized means, and d) Practical front part (fuel) that provides heat SUMMARY OF THE INVENTION The present invention, in a general aspect, provides a stove that provides effective heating, cooking with less smoke and harmful emissions.

In a preferred embodiment, the invention is, A stove assembly comprising: a) A combustion chamber in the form of a "L" hollow comprising, i) A vertical part to burn fuel, with an opening in the upper part through which the heat and exhaust gases can escape, and ii) A horizontal part with an opening for the entry of fuel and air, and b) a hollow closure body enclosing the "L" combustion chamber, said closure body comprising, i) A conical part, which surrounds the vertical part of the combustion chamber through which a gap is created that is reduced vertically between the vertical part of the combustion chamber and the conical part that encloses the body; Y I) A cut-away part towards the lower part of the closure body, said cut-away part being designed to allow the closure body to fit in the horizontal part of the combustion chamber so that the air leak is restricted at the intersection of the closing body and the horizontal part of the combustion chamber. and characterized in that the air in the reduced gap is heated and raised due to the heat of the external wall of the combustion chamber by which convective is created that runs upwards; and characterized in that the vertical part of the combustion chamber has a secondary air inlet in the upper part, which directs an air that rises from the convective air stream towards the upper part of the reduced gap in the vertical part of the combustion chamber for better combustion due to the hot air mixture of the convection current, with the volatile fuel gases in the vertical part of the combustion chamber.

The stove assembly discloses that it may also be installed within a variety of containments (e.g., external body, traditional stoves, frames / structures, and the like.

BRIEF DESCRIPTION OF THE DRAWINGS: Fig. 1. It is a diagram of a schematic drawing of an embodiment of an "L" shaped combustion chamber; Fig. 2. It is a schematic drawing of an embodiment of a closure body.

Fig. 3. It is a schematic drawing of an embodiment of the base for the assembly of the stove.

Fig. 4. It is a schematic drawing of an embodiment of the stove assembly.

Fig. 5. It is a drawing of an exploded view of a stove assembly.

Fig. 6. It is a drawing of a sectional view of an embodiment of the assembly of an oven that illustrates how the air circulates.

Fig. 7. It is a schematic drawing illustrating how a sheet can be designed and cut in such a way that it can be rolled and assembled in a closure body with a cut-out part to match and fit in the horizontal part of the chamber. combustion.

Fig. 8. It is a diagram of a drawing that illustrates in highlight the air inlets in an L-shaped combustion chamber Fig. 9. It is a schematic drawing of a fuel support; Y Fig. 10. It is a schematic drawing showing the fuel support inserted in the "L" combustion chamber.

DESCRIPTION OF ANY FORM OF EMBODIMENT OF THE INVENTION WITH REFERENCE TO THE DRAWINGS USED AS AN EXAMPLE The present invention, in a general aspect, provides a stove that provides effective heating, cooking with less smoke and harmful emissions.

In one embodiment the invention is A stove assembly comprising: a) A hollow combustion chamber in the shape of "L" 1 comprising, i) A vertical part 2 for the burned fuel, with an opening in the upper part 10 through which the heat and the exhaust gases can exit, and ii) A horizontal part 3 with an opening 9 for the entry of fuel and air; Y b) a hollow closure body 4 enclosing the combustion chamber in the form of "L" 1, said closure body 4 comprises, i) A conical part, which surrounds the vertical part of the combustion chamber in the form of "L" 1 thus creating a reduced vertical gap 12 between the vertical part 2 of the combustion chamber in the form of "L" and the part reduced of closure body 4; Y iii) A cut-away part 11 towards the lower part of the closure body 4, said cut-out part being designed to allow the closure body to fit in the horizontal part 3 of the combustion chamber in the form of "L" 1 so that the air leak is restricted to the intersection of the closure body 4 and the horizontal part 3 of the combustion chamber in the form of "L". and characterized by the fact that the air therein rises 12 is heated and rises due to the heat of the external wall of the combustion chamber in the form of "L" 1, by means of this it creates a convective air that runs upwards 12; and characterized in that the vertical part 2 of the combustion chamber in the form of "L" 1 has a secondary air inlet 7 towards its upper part, which directs an increase of air from the convective air stream in the upper part of the reduced gap 12 in the vertical part 2 of the combustion chamber in the form of "L" for a better combustion due to the hot air mixture of the convection current, with the volatile fuel gases in the vertical part 2 of the chamber of combustion in the form of "L".

A further embodiment includes a base 5, raised from the floor, characterized in that the combustion chamber in the form of "L" 1 and the closure body 4 are located, said base has a plurality of holes 6, towards the periphery of the base that serve as entrances to allow the air to circulate towards the reduced gap.

In an alternate embodiment, the closure body 4 of the preferred embodiment has a plurality of holes in its lower region that serve as inputs for air to flow into the reduced gap.

In another embodiment, the secondary air inlets towards the upper part of the vertical part of the combustion chamber are raised so that the secondary air inlets 13 direct the air that rises from the convective air stream in the part upper part of the reduced gap 12, descending to the vertical part 2, of the combustion chamber in the shape of "L".

In a further embodiment, the stove assembly is incorporated into a traditional mud oven.

In another embodiment, the stove assembly is incorporated in any other body of another shape (cylindrical, oval, square, rectangular, etc.) and material (metal, mud, or some other heat resistant material).

In one embodiment, the closure body of the stove assembly has an angle of inclination (eg, the angle formed by the X-axes and the external surface of the closure body) of 95 to 110 degrees.

In another embodiment, the stove assembly is used in combination with a shelf in which the containers or articles to be heated can be placed.

In another embodiment, the invention is a method of assembling an assembly of a stove by placing a hollow closure body 4, in a hollow combustion chamber in the shape of "L" 1, characterized in that: a) Said hollow combustion chamber in the shape of "L" 1 comprises, i) a vertical part 2 for the burned fuel, with an opening in the upper part 10 through which the heat and the exhaust gases can escape, ii) a horizontal part 3, with an opening for fuel and air to enter; Y b) Said closure body 4 comprises, i) A conical part, which surrounds the vertical part 2, of the combustion chamber in the shape of "L" 1, thus creating a reduced vertical gap 12 between the vertical part 2 of the combustion chamber in the form of "L" and the conical part of the closing body 4, and ii) A cut-away part 11 towards the lower part of the closure body 4, said cut-away part being designed to allow the closure body to fit in the horizontal part 3 of the combustion chamber in the form of "L" 1 so that the air leak is restricted to the intersection of the closing body and the horizontal part of the combustion chamber in the form of "L"; and characterized in that the air in the reduced gap 12 is heated and raised due to the heat of the external wall of the combustion chamber in the form of "L" 1, thereby creating a convective air that runs upwards; and characterized in that the vertical part 2 of the combustion chamber in the form of "L" 1 has a secondary air inlet in the upper part, which directs an air that increases from the convective air stream towards the upper part of the hollow reduced 12 in the vertical part of the combustion chamber in the form of "L" for a better combustion due to the hot air mixture of the convection current, with the volatile fuel gases in the vertical part of the combustion chamber in "L" shape.

In an extra embodiment, the assembling method of the stove assembly further includes the shapes of a hollow closure body 4 by winding a sheet 8, said portion 11 having been cut.

In another embodiment, the invention is a heating method, using the stove assembly, having an "L" shaped combustion chamber in a Closing body 1, surrounded by a conical hollow closure body 4, said heating method comprises the following steps: a) burn fuel in the combustion chamber in the form of "L", in this way generates volatile fuel gases, which rise to the top of the combustion chamber in the form of "L" b) heating the vertical part 2, of the fuel chamber in the form of "L", said heating of the vertical part caused by the fuel burned in the combustion chamber in the form of "L". c) heating the air in a reduced vertical gap 12, between the vertical part of the L-shaped combustion chamber and the closing body in the conical hollow surrounding it, characterized in that said air heating is caused by the heat of the vertical part of the combustion chamber in the form of "L" characterized in that the heated air rises to form a convection current by the increase of air in the reduced vertical gap due to the change of density in the air by with the change of temperature. d) increase in the speed of the increase in air in the convection current, said increase in velocity in the air is caused by the reduction towards the sharp upper part of the reduced gap; Y e) direct the convection current of the increasing air that increases the velocity towards the upper part of the combustion chamber in the form of "L", through the secondary air openings 7, in the upper part of the combustion chamber in the form of "L" and mixing said increase of air with the gases volatile fuel in the upper part of the combustion chamber in the form of "L", which causes the volatile fuel gases to burn and generate heat; and characterized in that any leakage of air at the intersection of the closure body and the horizontal part 3, of the combustion chamber in the form of "L" is restricted by a part cut out in a low region of the closure body, said section cut out It is designed to allow the closing body to coincide and fit into the horizontal part of the combustion chamber in the form of an "L".

The present invention is directed to solve the problem of harmful emissions emitted by traditional inefficient stoves as well as chimneys. The invention relates to providing air (oxygen) in excess of the stoichiometric index requires the complete combustion of the solid biomass fuel.

The present invention also relates to the working method of stove assembly for fuel combustion.

The present invention also relates to the method of assembling the stove assembly for heating.

The exemplary embodiments of the invention are described in great detail with reference to the exemplary drawings below.

In one embodiment, the invention is an oven assembly consisting of a hollow "L" shaped combustion chamber 1 in which there is a closure body 4 properly adjusted. The front opening in the horizontal part of the "L" combustion chamber serves as an input for the fuel as well as for the primary air. Towards the upper part of the combustion chamber there are a plurality of orifices serving as secondary air inlets 7, for the combustion chamber. The combustion chamber in the shape of "L" and the closure body are located in the base 5 which rises from the floor. The base has a plurality of holes 6 towards its periphery.

The air in the reduced gap 12 between the combustion chamber 1 and the closure body 4 is heated when the fuel is burned in the combustion chamber. The hot air rises and enters the vertical part of the combustion chamber by means of the secondary air inlets. The air that enters the combustion chamber creates an empty space in the reduced gap. Since each system has a tendency to reach equilibrium, the surrounding cold air enters the reduced gap to fill the empty space. This cold air initially passes in thermal communication with the hot external wall of the combustion chamber, which heats up and increases. In this way a convection current is formed due to the change in air density with the change in temperature.

Fig. 6 illustrates the secondary air entering the reduced gap 12 through the holes 6 in the base. Fig. 6 also illustrates the heated air in the reduced gap increasing with the convection current and entering the vertical part 2 of the combustion chamber thus ensuring better combustion.

The reduced gap created by the closure body provides a differential area for the air outlet. This reduction in the area towards the outlet increases the velocity of the air which causes a better mixture with the volatile gases of gas. These volatile gases that could have escaped into the environment are burned due to secondary air thus ensuring better heating and reduction of harmful gases and emissions. The closing body has a narrow structure which directs the air that increases its speed towards the combustion chamber causing better heating and combustion and reducing harmful gases and emissions.

The wall of the combustion chamber separates the secondary air into the reduced gap of the primary air that comes from inside the combustion chamber towards the front opening of the horizontal part. The secondary air that comes from inside the combustion chamber through the secondary openings can be directed downwards towards the burned fuel (combustion point) causing a better combustion of fuel. This can be achieved by highlighting the secondary openings (protruding holes above the zero point as in the case of the vegetable peeler) and pointing them down to direct the air towards the burned fuel.

The closure body has a cut-away part 11 which is designed to be attached and fixed in the horizontal part of the combustion chamber so that the air leakage from the reduced gap is restricted. Fig. 7 illustrates how a sheet 8 can be designed and cut with a cut-out part and then rolled and formed with the closure body.

The gap between the closure body, the cut-off part and the horizontal part of the combustion chamber is intended to be restricted but not eliminated. Having a thin gap, helps avoid the stress of stove assembly even when the different parts of the assembly expand and contract at different ranges due to constant cooling and heating.

The closing body reduces the losses of radiation emission from the combustion chamber. The closure body acts as a barrier to heat transfer, so most of the heat is retained by itself in the combustion chamber or in the reduced gap.

The present invention can, in a further embodiment, be incorporated into a traditional existing mud oven, or to some other external body of which material or mark providing the stove assembly with a floor elevation, to allow air to enter the reduced gap In another embodiment, the stove assembly is used in combination with a stand in which the containers or articles to be heated can be placed. The stove assembly must be located in the center and below the station.

In an alternative embodiment, instead of having the air inlets through the reduced gap in the base, the air inlets can be next to the closure body towards the bottom. In this way the stove assembly does not need to be located on a raised base.

In still another embodiment, a fuel holder 14 (eg, a grid) preferably made of a metal sheet with ventilation holes, wire rods, wire meshes or the like which can be used in the present invention to place the fuel and then insert it into the horizontal part of the combustion chamber 1. The fuel support ensures that the air is provided to the lower surface of the fuel thus ensuring a better fuel combustion. The fuel support also separates the ashes and the coal from the fuel, which would otherwise be accumulated in the fuel by itself and the air provided to the fuel would be minimized. The fuel support can be of any length or size depending on the size of the horizontal part 3 of the combustion chamber.

Although the Drawings of the Drawings show an "L" shaped combustion chamber with a vertical cylindrical part, said vertical part may be of any other shape including, square, rectangular, hexagonal, oval or otherwise. Similarly, the horizontal part may be D-shaped, parabolic, square, rectangular or otherwise.

Slight variations of the combustion chamber in the form of "L" have been seen and covered by this disclosure. For example, instead of being exactly "L" shaped (for example, 90 degrees), the combustion chamber can have an angle of 80 degrees or 100 degrees, etc. and providing approximately the same functionality, thus decreasing the equivalence range of the present invention.

The closure body need not be in the form of a screen with straight sides as shown in the embodiment of illustrative diagrams. It can be molded in any way as long as it has a conical part. In this explanation, the word narrow, as applied in the closure body, means a general vertical narrowing, from bottom to top, of the closure body, whether it is gradual, abrupt, stepped, right or curved.

INDUSTRIAL UTILITY: The present invention has the following uses: a) cooking food b) heat food or other items c) as a source to warm up in cold weather. d) to burn material waste with the minimum amount of smoke and dangerous emissions.

In the previous description, all the numbers disclosed are approximate values, regardless of whether the word "more or less" or "approximate" is used in connection with that.

The terminology used here is for the purpose of describing particular presentations only and is not intended to be limited to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include their plural form, unless the context clearly dictates otherwise. It should further be understood that the terms "comprises" or "comprising" when used in this explanation, specifying the presence of features, numbers, steps, operations, elements or components, but does not exclude or exclude the presence or incorporation of one or more characteristics, numbers, steps, operations, elements, components or groups thereof.

The steps of the process, steps of the method, protocols, or similar will be described in sequential order, as well as the processes, methods and protocol can be structured to work in alternate orders. In other words, any sequence or order of steps must be described, but not necessarily indicate that it is necessary to follow the steps in order to be fulfilled. The steps of the processes described here can be accomplished in any practical order. In addition, some steps can be performed, simultaneously, in parallel or at the same time.

The purpose of this explanation is to describe the invention without limiting it to any specific embodiment or collection of features. A skilled person can make the variations of certain presentations, which however fit within the scope of the invention, and such variations are estimated within the current invention.

It can be appreciated that several of the changes or modifications may be made to the embodiment described without departing from the spirit and scope of the invention.

Claims (10)

1. A stove assembly comprising: a) an "L" shaped hollow combustion chamber comprising, i) a vertical part for burning fuel, with an opening in the upper part through which the heat and exhaust gases can escape, and ii) a horizontal part, with an opening for the entry of air and fuel; Y b) a hollow closure body which encloses the "L" combustion chamber, said closure body comprises, i) a conical part, which surrounds the vertical part of the combustion chamber in the form of "L" thus creating a reduced vertical body between the vertical part of the combustion chamber in the form of "L" and the conical part of the body of closing; Y I) a cut-away part towards the bottom of the closure body, said cut-out part being designed to allow the closure body to enter the horizontal part of the combustion chamber in an "L" shape in such a way that any air leakage it is restricted to the intersection of the closing body and the horizontal part of the combustion chamber in the form of "L"; and characterized in that the air in the reduced gap is heated and rises upwards because the heat of the external wall of the L-shaped combustion chamber thus creates an upward convective air current; and characterized in that the vertical part of the combustion chamber in the form of "L" has secondary air inlets towards its upper part which direct the air that increases from the convective air current towards the upper part of the reduced hole in the part vertical of the combustion chamber in the form of "L" for a better combustion due to the mixture of hot air of the convection current with the volatile fuel gases in the vertical part of the combustion chamber in the form of "L".

2. The stove assembly of claim 1 further comprises a base, raised from the floor, characterized in that the "L" shaped combustion chamber and the closing body are located, said base having a plurality of holes towards the periphery of the base which serves as inputs to let the air flow into the reduced gap.

3. The stove assembly of claim 1 characterized in that the closure body of the preferred embodiment has a plurality of holes in its lower region that serve as entrances to allow air to flow into the reduced gap.

4. The stove assembly of claim 1 characterized in that the secondary air inlets towards the upper part of the vertical part of the combustion chamber in the form of "L" are enhanced in such a way that said secondary air entrances enhanced direct the increase of air from the convective current in the upper part of the reduced space below the vertical part of the combustion chamber in the form of an "L".

5. The stove assembly of claim 1 contained in an external body, characterized in that said external body: a) is made of mud; or b) It is made of metal or any other type of material that is hot and has a cylindrical, oval, square or rectangular shape.

6. The stove assembly of claim 1, characterized in that the hollow closure body has an inclination angle of 95 to 110 degrees.

7. A method of assembling the stove assembly by placing a hollow closure body in a hollow "L" shaped combustion chamber characterized in that: a) said combustion chamber in the form of a "L" hollow comprises, i) a vertical part to burn fuel, with an opening in the upper part through which heat and exhausted gases can exit, and ii) a horizontal part, with an opening for the entry of air and fuel; Y b) said closing body comprises, i) a conical part, which surrounds the vertical part of the combustion chamber in the shape of "L" thus creating a reduced vertical gap between the vertical part of the combustion chamber in the form of "L" and the conical part of the body of closing; Y ii) a cut-away part towards the lower part of the closure body, said cut-away part being designed to allow the closure body to enter the part horizontal of the combustion chamber in the form of "L" in such a way that any leakage of air is restricted to the intersection of the closing body and the horizontal part of the combustion chamber in the form of "L"; and characterized in that the air in the reduced gap is heated and rises due to the heat of the external wall of the combustion chamber in the form of "L" thus creating a rising convective air current and characterized in that the vertical part of the combustion chamber in the form of "L" has secondary air inlets towards its upper part which direct the increase of air of the convective air current towards the upper part of the reduced space in the part vertical of the combustion chamber in the form of "L" for a better combustion due to the mixture of hot air of the convection current with the volatile fuel gases in the vertical part of the combustion chamber in the form of "L".

8. The assembly method of the stove assembly 7 characterized in that said hollow closing body is formed by a rolled sheet having said cut-out part.

9. A heating method, which uses the stove assembly having an "L" shaped combustion chamber, surrounded by a narrow recessed closure body, said heating method comprising the steps of: a) burning the fuel in the combustion chamber in the form of "L" generating volatile fuel gases that rise to the upper part of the combustion chamber in the form of "L"; b) heating a vertical part of the combustion chamber in the form of "L", said heating of the vertical part is caused by the burning of fuel in the combustion chamber in the form of "L" c) heating the air in the reduced vertical gap between the vertical part of the L-shaped combustion chamber and the reduced gap surrounding the closing body, characterized in that said heated air is caused by the heat of the part vertical of the combustion chamber in the form of "L" and characterized in that the heated air increases to form a convection current of the increase of air in the reduced vertical gap to change the density of the air with the change in temperature. d) increasing the speed of the air that increases in the convection current, said increase in the air velocity that increases by reducing the area towards the upper conical part of the reduced gap; Y e) direct the convection current of the increase in air that has increased its velocity towards the upper part of the combustion chamber in the form of "L" through the secondary air inlets in the upper part of the combustion chamber in the form of of "L" and mixing said increase of air with the combustible volatile gases in the upper part of the combustion chamber in the form of "L" causing the combustible volatile gases to burn and generate heat; and characterized in that any leakage of air at the intersection of the closure body and the horizontal part of the combustion chamber in the form of "L" is restricted by a cutout portion in a low region of the closure body, said The cut-out part is designed to allow the closing body to coincide and fit into the horizontal part of the combustion chamber in the form of an "L".

10. The heating method of claim 9 further comprises the enhancement of the secondary air inlets such that they direct the convection current of the increase in air in the lower part towards the upper part of the combustion chamber in the form of "L "Thus causing a better mix of increased air and volatile fuel gases leading to better combustion of volatile fuel gases and the generation of heat.