Abstract:
A gas burner for household may include a zone for mixing combustible gas with air to form an air-gas mixture, an inner chamber with an inner table, and including sides with crenellated walls. A vertex may be formed on each end of the sides, which may be formed by intersecting curved surfaces. A port zone may be on an upper face of the crenellated walls. The port zone includes main ports, which may be centric relative to the vertexes. The symmetry axes of the main ports may be aligned towards the vertex closest to a corresponding port. The ports may be equidistant relative to one another. A lid may close the inner chamber and pass the mixture through the ports. The curved surfaces may have different geometries. The lid may include a cavity, where another burner may be placed.

Description:
RELATED APPLICATIONS 
     This application claims priority from Mexican Application Serial No. MX/a/2011/010941 filed Oct. 14, 2011, which is incorporated herein by reference in its entirety. 
     FIELD OF THE INVENTION 
     The present invention lies within the field of burners, particularly gas burners used in household equipment such as stoves, braziers, heaters, grills, and small furnaces or similar. 
     PRIOR ART 
     A great variety of burners for domestic or industrial use which are based on an atmospheric burner are found in the markets which use the function principles of the Bunsen burner. Initially, the main objective of these, was that of providing a flame which would have an impact on the utensils to be heated, achieving this without considering efficiency aspects of the combustibles used in the heating or aspects of ecologic character, heating speed and geometry of the kitchen utensils among others; through time the design of the burners has evolved towards the resolution of the above mentioned aspects. 
     As antecedents to the present invention, the applicant has knowledge of the following documents: 
     Document U.S. Pat. No. 2,311,994 by PARKER, describes a delta shape burner or one which can have any star shape with a plurality of points, this burner has ports set over a curve which joins the points, over a horizontal plane, said curve with ports is at a 45° angle regarding the vertical, with the purpose of projecting the flame darts towards the outside and above, further than the symmetry axis of the ports which emanates from the one point near the radius or focal of the curve on which the ports are found. According to said document, said determination for the ports&#39; alignment was taken while considering the manufacturability of the ports, which were apparently perforated by means of bits over the curve surface of the burner, which causes a restriction of the burner&#39;s design; on the other hand, from the combustion point of view, this can cause an agglutination of flames or a dart collision given that the ports are aligned towards a common center, this leads to that in order to avoid this problem, a lesser number of ports is present, as well as a lower velocity within these, and even like this it can be seen in a maximum potency embodiment that the burner can lose efficiency given the proximity of the flames aligned towards a center which causes a tendency to collide thus provoking insufficiency of secondary air around these. 
     Another document worth of study is U.S. Pat. No. 6,315,552 B1 by Meier et al, which has a divisional to which number U.S. Pat. No. 6,439,882 B2 was assigned. Both documents speak of an atmospheric burner with a delta shape with ports set on the periphery on a horizontal plane, said burner contains in its interior a flow divider for combustible which itself, helps to mix the combustible with the primary air in addition reducing the flow velocity of the air mixing-combustible in order to distribute it to the star&#39;s arms or the delta (the referred to document specifies that the delta shape is only one of its embodiments). This design has the particular inconvenience of having few ports in the burner&#39;s center given the combustible flow divider; this lowers the burner&#39;s thermal potential, which has the capability of also causing slower heating for the utensils to be heated, knowing that heating kitchen utensils as close to the center as possible is desired, which aids in better heat diffusion to the base of the utensil, thus homogenizing temperature on the cooking surface of the utensil. Said design fails to provide a solution to this need of the operator&#39;s, as it places the majority of the ports on the points of the stars or delta, thus concentrating more flame darts as far away from the burner&#39;s center as possible, heating more towards the outer periphery of the heating surface of the kitchen utensil, leaving the center “cold”, thus causing temperature gradients on the cooking surface of the kitchen utensil, such as a crown or circular atmospheric burner like the ones traditionally found on cooking equipment or stove would do. 
     Japanese publication number 11264516 makes known an equilateral triangle shaped burner. In this publication, the burner sides are totally straight, so that it does not cause the flames to have a substantially centric incidence point conforming to the utensil to be heated. 
     In this manner, this and other differences regarding prior art shall become evident when reading the detailed description of the present invention. 
     BRIEF DESCRIPTION OF THE INVENTION 
     The burner of the present invention has a non-conventional shape for a burner. Traditionally, atmospheric Bunsen burners for stoves are circular crowns. Alternatively, one can find star shaped burners in the market made of perforated steel tubes which are used to heat large containers. In this way, these star, triangular or delta shaped burners attempt for the flame darts to cover a greater contact area of the lower area of a utensil to be heated, where the flame darts are distributed in a homogenous way over the entire lower area of the utensil to be heated. It is also desirable to have flame darts near the surface to be heated, and above all, near the center of this, as well as also desiring a compact sized burner so that it may be more flexible, as it can be of service to a great variety of differently sized utensils. Additionally, it is also desirable to have a powerful burner to be able to heat. 
     In order to solve the above mentioned problems and which were detected by the inventors of the present invention, a burner with a shape similar to a delta or similar to a triangle is provided whose cathetus or sides are formed by the intersection of two curves, a first curve over a horizontal plane joining the points or vertexes thus projecting the wall over which the ports are on its upper edge (as in a crenellated wall), this will intersect with a curve surface preferably a truncated cone or in an alternative embodiment it may follow a sphere or dome shape. This interesting arrangement allows for the possibility of having more ports on a smaller sized burner as well as placing ports as close to the center of the utensil to be heated both on a horizontal plane as well as on the vertical plane; it should be noted also that the direction of the ports is “outwardly” directed or they tend to open in relation to the burner and as such, do not coincide in the center, which allows for better aeration, which results in improved combustion. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The particular characteristics and advantages of the invention, as well as the other aspects of the invention, shall become apparent from the following description, taken along with the accompanying drawings, from which: 
         FIG. 1  is a perspective view and an exploded view of the burner of the present invention. 
         FIG. 2  is a perspective view of the burner of the present invention, without the lid. 
         FIG. 3  is a conventional perspective view of a detail of the ports of the burner of the present invention. 
         FIG. 4  is a lower conventional perspective view of the burner of the present invention. 
         FIG. 5  is a cross cut view of the burner of the present invention. 
         FIG. 6  is a cross section view of a detail of the burner of the present invention. 
         FIG. 7   a  is an upper view of the burner of the present invention. 
         FIG. 7   b  is an upper view of a first embodiment of the burner of the present invention. 
         FIG. 8   a  is a lower view of the burner of the present invention. 
         FIG. 8   b  is a lower view of a detail of the burner of the present invention. 
         FIG. 9   a  is an upper view of one of the ends of the burner of the present invention, in a second embodiment. 
         FIG. 9   b  is a conventional perspective view in detail of the ends of the burner in the second embodiment of  FIG. 9   a.    
         FIG. 10  is an upper view of one of the ends of the burner of the present invention, in a first embodiment. 
         FIG. 11   a  is a conventional perspective view of an end of the burner of the present invention, where said figure shows a sub-embodiment of the first embodiment. 
         FIG. 11   b  is an upper view of the sub-embodiment of the first embodiment of  FIG. 11   a.    
         FIG. 12  is a cross section view of the burner of the present invention showing the fluid flow in the burner. 
         FIG. 13   a  shows a first embodiment of the diffuser plate of the burner of the present invention. 
         FIG. 13   b  shows a second embodiment of the diffuser plate of the burner of the present invention. 
         FIG. 13   c  shows a third embodiment of the diffuser plate of the burner of the present invention. 
         FIG. 13   d  shows a fourth embodiment of the diffuser plate of the burner of the present invention. 
         FIG. 14   a  shows a conventional perspective upper view of the body of the burner of the present invention. 
         FIG. 14   b  shows a conventional perspective lower view of the body of the burner of the present invention. 
         FIG. 15   a  shows a conventional perspective lower view of the cup of the burner of the present invention. 
         FIG. 15   b  shows an upper view of the cup of the burner of the present invention. 
         FIG. 15   c  shows a second conventional perspective lower view of the cup of the burner of the present invention. 
         FIG. 15   d  shows a cross section view of the cup of the main embodiment of the present invention. 
         FIG. 16  shows an embodiment of the burner of the present invention, with a central burner. 
         FIG. 17   a  shows a conventional perspective view of the central burner in the embodiment of  FIG. 16 . 
         FIG. 17   b  shows a conventional perspective lower view of the central burner in the embodiment of  FIG. 16 . 
         FIG. 17   c  shows a cross section view of the central burner in conjunction with part of the burner of the present invention according to the embodiment of  FIG. 16 . 
         FIG. 17   d  shows a perspective lower view of the lid and the central burner according to the embodiment of  FIG. 16 . 
         FIG. 17   e  shows a perspective lower view of the lid and the central burner according to the embodiment of  FIG. 16 , where the elements are shown in explosion. 
         FIG. 17   f  shows a cross-section view of the burner embodiment of  FIG. 16 . 
         FIG. 18  shows a perspective and a cross section view of the burner according to the embodiment of  FIG. 16  which shows the fluid flow in the burner. 
         FIG. 19   a  shows yet another embodiment of the burner of the present invention, with a different central burner. 
         FIG. 19   b  shows a lower perspective view of the embodiment in  FIG. 19   a.    
         FIG. 20  shows an exploded view of the embodiment in  FIG. 19   a.    
         FIG. 21   a  shows an upper view of yet another embodiment of the present invention, specifically where this embodiment is set to be used in conjunction with  FIG. 19   a.    
         FIG. 21   b  is an upper view of a detail of the embodiment in  FIG. 21   a.    
         FIG. 21   c  is an upper view of the embodiment of claim  21 a, including barrier rails. 
         FIG. 22   a  is an upper view of the central burner of the embodiment in  FIG. 19   a.    
         FIG. 22   b  is a lower view of the central burner of the embodiment in  FIG. 19   a.    
         FIG. 22   c  is a front view of the central burner of the embodiment in  FIG. 19   a.    
         FIG. 23   a  is a conventional perspective view of the lid of the main burner of the embodiment in  FIG. 19   a.    
         FIG. 23   b  is a conventional perspective lower view of the lid of the main burner of the embodiment in  FIG. 19   a.    
         FIG. 23   c  is an upper view of a detail of the lid of the main burner of the embodiment in  FIG. 19   a.    
         FIG. 24   a  is an upper view of the cup in an embodiment of the present invention. 
         FIG. 24   b  is a lower perspective view of the embodiment in  FIG. 24   a.    
         FIG. 24   c  is a conventional perspective lower view of the embodiment in  FIG. 24   a.    
         FIG. 25  is a cross section view of the burner in  FIG. 19 , which shows the fluid flow. 
         FIG. 26   a  is yet another embodiment of the burner of the present invention. 
         FIG. 26   b  is a cross section view of the embodiment in  FIG. 26   a.    
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     Definitions 
     The term “approximately” can be defined with a specific range. For the purposes of the present invention, the range given through the term “approximately” is ±10%. That is, if the range is defined approximately “1 to 25”. The interpretation which should be applied to said range in conjunction with the term “approximately” would be any of the following combinations: 0.9 to 25, 1.1 to 25, 1 to 27.5, 1 to 22.5, 0.9 to 27.5, 0.9 to 22.5, 1.1 to 27.5 or 1.1 to 22.5. 
       FIG. 1  shows an exploded view of the preferred embodiment of the present invention, which comprises a burner body  11  which in its interior has a platform  21 , a Venturi tube  12  through which the mixture of gas with primary air enters, and a lid  10  which covers the upper part of the body of the burner, which comprises the burner  25  of the present invention. 
     Crenellated Wall  26   
       FIG. 2  shows and allows the study of the body of the burner  11  which we submit for study given its particular construction, design and geometry. The referred to body of the burner  11  is formed by a wall or crenellated wall  26  which is constructed by the at least two curved surfaces which intersect on at least two planes. Over the horizontal plane, a curved surface is sketched in a domed, spherical or any other curved shape, which is intersected on the vertical plane by a curved surface preferably a truncated cone or in an alternative embodiment in similar manner a domed, parabolic, or another. So that from the intersection of said curves a wall  16  is formed which is later crowned with crenellations  46 . 
     This can become more clearly apparent upon the study of  FIG. 3 , where there is a center c from where a horizontal plane is sketched over which we project a radius r through which the vertical curved surface passes through which as previously outlined may follow a curvature in a manner similar to a cone, a parabolic or a curve. Said vertical curved surface has a β inclination measured from the vertical, said β angle can vary between approximately 1° and 25° which shall depend on the particularities of the design, de-molding parameters, measurements and proportions, among other variables as well as considerations involving the body of the burner  11  in particular. 
     In this way, when this vertical surface intersects a curved surface sketched over the horizontal plane (which can be a truncated cone, a dome, a sphere, a parabolic among others) with a phase shifting or a displacement over said horizontal plane a wall or crenellated wall  26  is formed at a height which follows a curve. Said wall or crenellated wall  26  is crowned with crenellations  46 , which help form the ports  20 . These mentioned walls or crenellated walls  26  are joined by means of vertexes  27  such as are shown in  FIG. 2 . In an alternative embodiment a burner can be conceived which contains at least two vertexes  27  and a single crenellated wall  26  joined to any other geometry by means of the vertexes  27 , such as could be an oval or semi-circular type burner, among others. 
     Body of the Burner  11   
     The body of the burner  11  can be glimpsed at in  FIG. 2 , which as was described in detail previously is preferably formed by at least three crenellated walls joined by at least an equal number of vertexes  27  which results in a substantially polygonal surface preferably in a triangular or delta shape manner, the substantially polygonal shape can vary depending on the number of crenellated walls  26  and vertexes  27  which are used for the construction of the body of the burner  11  periphery. 
     Thus having the body of the burner  11  periphery ready, we now turn to  FIG. 4 , where the flooring for the body of the burner  11  can be seen, which joins the crenellated, walls  26  as well as the vertexes  27 . It also can be seen that the referred to flooring  47  houses the Venturi tube  12  which is preferably found in close proximity to the center of the polygon formed by the crenellated walls  26  and vertexes  27 . 
     The extremities  41  set around the Venturi tube  12  should be highlighted, which are nestled over the centering ribs  43  with which the cup  17  is crowned with (see  FIGS. 14   a ,  14   b ). The positioning system which comprises the extremities  41  with the centering ribs  43 , may be set as “poka Yoke”, that is, they may have a set separation or a specific configuration which only allows its assembly in one way, and through this avoiding the body of the burner  15  from being incorrectly placed over the cup  17 . 
     Now, additionally the legs  31  can be seen which are set more or less under the zone of the vertexes  27 , said legs  31  help separate the burner from the stove&#39;s cover or over the diffuser plate  18 , as a distance “v” exists between said plate and the lower surface of the body of the burner  11  (see  FIG. 18 ), so that the primary air may circulate underneath the body&#39;s burner  11  towards the cup  17  (a mechanism which shall be discussed later). 
     Thus, turning our attention back to said  FIGS. 2 ,  3 , we highlight the platform, which towards its central part houses the discharge zone  24  through which the mixture of combustible air exits-air transported through the Venturi tube  12 . Said combustible air-air once it passes through the discharge zone  24  arrives at the mixture chamber  23  where it completes the action of mixing the combustible with the air. Thus said mixture chamber  23  is bound by the circumference area formed between the tangential points which are formed between the curved surface of the inner wall of the crenellated wall  26  and whose center coincides with the symmetry axis of the Venturi tube  12 . The referred to platform&#39;s  21  geometry has a peculiar geometry, knowing that, said platform  21  is also a product of the curved surfaces which are intersected, in this case there is a curved surface with a shape similar to that of a dome, sphere, parabolic, among others, formed over a horizontal plane, which is cut on one of its sides by at least one curved inner surface which forms a crenellated wall  26 ; with such luck that depending on the number of crenellated walls  26  and vertexes  27  which the body of the burner  11  comprises, the platform  21  follows the quasi-polygonal shape which forms the referred to periphery of the body of the burner  11 . To achieve a better distribution of the combustible mixture-air inside the burner&#39;s chamber  25 , a channel  35  has been provided (see  FIGS. 5 ,  6 ,  9   a ,  9   b ,  10 ) which runs adjacent and parallel to the inner wall of the crenellated wall  26 , thus separating said inner wall from the crenellated wall  26  of the platform  21  which forms the periphery of the platform  21 . 
     Ports and Crenellations 
     Turning our attention to the crown of the crenellated wall  26  ( FIGS. 3 ,  5 ,  6 ,  7   a ,  7   b ,  9   a ,  9   b ,  10 ,  11   a ,  11   b ) we highlight the ports  20  and the crenellations  46 . The crenellations  46  on their upper part sustain the lid  10  which covers the body of the burner  11 , where the sides of the crenellations together with the lid  10 , function as the frame of the ports  20 . It should be mentioned that in an alternative embodiment secondary ports  42  can be set on the crest of the crenellations  36 , which may aid in the transport of the flame between the main ports  20 , in addition to increasing the burner&#39;s  25  thermal potential. The main ports  20  set over the crenellated wall  26 , have a peculiar geometry, knowing, that the base of the referred to ports has an angle α from the horizontal (see  FIGS. 5 ,  6 ), which oscillates between approximately 10° to 60°; the referred to angle α allows for the directing of the flame&#39;s dart towards the outside and above, achieving through this a flame which attempts to have the greatest contact area with the utensil to be heated, as well as an efficient combustion dart. The lateral walls of the ports  20 , as well as those of the crenellations  46  are preferably parallel, although in an alternative embodiment of the ports&#39; cross sections; one can envision any geometrical shape such as circular, elliptical, triangular, trapezoidal, polygonal, etc. where a charge of the ports are maintained between 15,000 to 30,000 Btu/(h in2) where the charge on the port is understood as the thermal potential between the total port area Cp=IR/At, 
     Where: 
     Cp=charge on the port 
     IR=thermal potential (input rate) 
     At=total port area 
     Thus for the preferred embodiment of the present invention ports with a rectangular, square or trapezoidal cross section shall be used, noting that in an alternative embodiment, any alternative geometry may be used. 
     Thus the duct of the port  20  is covered in its upper part by the rib  32  of the lid  10 ; the referred to rib  32  is found on the lower face of the lid  10  (see  FIGS. 6 ,  8   a ,  8   b ). Said rib  32  similarly to the upper inner apex of the crenellations  46  has an angle             from the horizontal, said angle           oscillates between approximately 10° and 60° and may differ or be the same as angle α from the base of the port&#39;s  20  duct, this shall depend on the parameters of the design such as; de-molding mechanism, manufacture criteria, combustible type and atmospheric height at which the burners  25  functions, among other design considerations. In the preferred embodiment of the invention, the angle           varies approximately between 1° and 10° to the angle α, this with the end purpose of creating a cone or of allowing the duct to have an exit port area lesser than the entry port area (both are at the ends of the duct port), which aids in increasing the velocity of the particles in the combustible-gas mixture which circulate through said port duct, with which the designer can achieve a better maneuver margin to attain the desired length and shape of flame darts.
     It should be highlighted at this point that the peculiar setting of the ports allows there to be sufficient space between these so that they not collide or that they not combine allowing for proper secondary aeration. This can be seen in greater detail in  FIGS. 7   a  and  7   b ; said figures highlight in a didactic manner a set of symmetrical axes  29  which cut the ports in half, it should be noted that these have their origins near or in close proximity to the vertex  27  on the horizontal symmetrical axis which exists between the center of the Venturi tube  12  and the very center of the vertex  27  itself, the exact location of the referred to origin shall be determined depending on the burner&#39;s size, the number of ports, the thermal potential and the geometry of the ports themselves, among other particulars to be considered. As can be noted, the axes  29  depart from an origin and diverge along their length, growing along the body of the burner  11 ; thus, when they intersect the crenellated wall  26 , these already have sufficient equidistant space between them, thereby creating ports with the correct distance between them. Additionally, given their alignment “towards the outside” and not “towards the point of origin” the possibility of their colliding or congregating at a flame dart point is eradicated. 
     Lid Geometry 
     In  FIG. 1  the particular design of the lid  10  which is placed over the body of the burner  11  can be seen. The lid  10  along with the inner part of the body of the burner  11  forms a chamber where the final mixing of the combustible air takes place, in addition to providing said mixture to the ports  20  along the length of the inner wall of the crenellated wall  26  and the channel  35 . Thus the height between the upper surface of the platform  21  and the lower surface of the lid  10  is an important one, this being one among several of the reasons as to why the lid  10  also has a part of the geometry between a curved surface on the vertical plane, where said curved surface may be a dome, sphere or parabolic among others. Thus this curved surface is cut by another curved surface on a horizontal plane, which itself is a very similar curve to the one used to form the crenellated wall  26 , since the lid  10  covers and be seated on said crenellated wall  26 , so that following its contour is important; and in that same vein, the lid  10  follows the contour of the periphery of the body of the burner and as such, its geometry shall determine the lids&#39; contour  10 . 
       FIG. 8   a , shows a lower isometric view of the lid  10 , where the ribs  32  which rest on the crenellations  46  of the crenellated wall  26  can be discerned, themselves closing the port duct&#39;s  20  upper side. Additionally the ingots  48  which form part of an alternative embodiment of the lid  10  of the present invention can be seen, which allow for positioning or aid in the correct placement of the lid on the body of the burner  11 , as said ingots  48  bump against the vertexes  27  of the body of the burner  11 ; in a preferred embodiment of the invention the use of said ingots  48  is waived. 
     It should be mentioned that the lid  10  in an alternative embodiment may be grasped to the body of the burner  11  by means of screws, rivets, fasteners or any other means fastening. 
       FIG. 8   b  aids in discussing the lid&#39;s  10  bevel  33  and extremity  34 , which are set close to or on the edge or on the border of the lid in a substantially parallel to the rib  32  manner. The bevel  33  is a recess forms on the top of the lid  10 , to later be followed by the extremity  34  which may be rounded. The discussed bevel  33  and extremity  34  arrangement aids in the formation of the flame dart granting it improved appearance and stability. 
       FIGS. 16 ,  18 ,  19   a ,  20 ,  23   a ,  23   b ,  23   c , show alternative embodiments of the lid  10 , which may be set with a cavity in its central part, which allows for the placement or allows for the passage of a central burner in this place, this with the end purpose of being able to grant a greater thermal potential to the burner  25 , as well as having dart flames nearer to the center of the utensil to be heated, or even a low capacity and high pressure central burner  39  independently controlled from the body of the burner  11 . The cavity may have almost any shape, a circumference or polygonal shape which follows the contour of said lid  10  being preferable. In any case, it is preferred that the above mentioned cavity have a separator ring  38  which takes off, separates or raises the central burner  39  from the lid&#39;s  10  upper surface at a distance “h” which preferably oscillates approximately between 1 mm to 25 mm. If said distance “h” does not occur, the flame darts would have to “be dragged” over the lid&#39;s  10  upper surface given the “capacity limit” effect between said upper surface of the lid  10  and the flame darts. Thus, upon raising the central burner one avoids this problem since better defined dart flames are obtained, coupled to also achieving better secondary aeration of the central burner. 
     Diffuser Plate  18   
       FIGS. 13   a ,  13   b ,  13   c ,  13   d  show two preferred embodiments of the diffuser plate  18 ,  FIGS. 13   a ,  13   b  show a plate&#39;s geometry in a substantially triangular or delta shape in such a way that it mirrors the contour of the body of the burner  11 . It should be highlighted at this point that the diffuser plate  18  may follow or mirror the polygonal or periphery shape of the body of the burner  11 , the plate having a larger area in its upper part than that of the lower face  47  of the body of the burner  11 . The diffuser plate  18  in any of its embodiments is set with a substantially central hole through which the Venturi tube  12  of the body of the burner  11  passes. In a satellite manner to the hole, a plurality of holes is set through which the fastening means passes through which are to join the diffuser plate  18  to the cup  17 . In this way both embodiments are set with a plurality of centering ribs  43  which help center the diffuser plate  18  in the cavity set on the stove&#39;s or kitchen&#39;s cover  19  where the burner  25  will be lodged. From  FIG. 13   b  a series of radial channels  44  can be seen on a same diameter, where said channel is sufficiently deep to house a seal ring, closure, seal or packaging which will absorb impacts and vibrations, since there are some embodiments of stove or kitchen covers  19  made of glass or ceramic material, which have low resistance to impacts, the above mentioned O-ring avoids the passage of fluids emanating from a spill of the utensil to be heated, thus preventing said fluid from pouring towards the inner part of the cavity where the burner  25  is placed on the cover  19 : in this way between the said kitchen or stove cover  19  the diffuser plate  18  is placed directly on it, being apparent that this itself supports the rest of the burner  25 . 
       FIGS. 13   c ,  13   d , show an alternative embodiment of the diffuser plate  18  which has a cylindrical shape; in both cases or embodiments, the diffuser plate  18  has its extremities, borders or ends rounded or chamfered, as they should not have a sharp edge, border or sharp parts, for the operator&#39;s safety reasons as well as for aesthetic reasons. 
     The use of a diffuser plate  18  in the burner&#39;s  25  assembly of the present invention is an alternative embodiment, if the said diffuser plate  18  serves as resistance, shield or thermal barrier preventing the heat emanating from the burner from passing directly to the kitchen or stove&#39;s cover surface  19 , which as was discussed in the above lines can be made of a glass or ceramic material, is not necessary when the cover  19  is made of a metallic material such as steel. Thus, the diffuser plate  18  creates a temperature gradient, and furthermore, grants rigidity to the burner  25  in addition to support by distributing the weight of it over a larger area through which mechanical forces on said kitchen or stove cover  19  are reduced to a great degree when it is made of a glass or ceramic material. Said plate  18  is preferably manufactured of a metallic material such as steel, aluminum or alloys of the same. In another preferred embodiment when the cover  19  is made of a glass or ceramic material, a lower plate  53  is used which is grasped unto the cup  17  (the cup assembly with the lower plate  53  is detailed in the chapter “Aspiration Mechanism, mixture and distribution of mixture in the burner&#39;s chamber and stability chamber” of the present document), said lower plate  53  acts in conjunction with the plate  18  confining the cover  19 . It should be mentioned that the lower plate&#39;s  53  extremities, which contain rubbers  54 , are resilient, with such luck that upon confining the cover  19  between the plate  18  and the lower plate  53 , said rubbers  54  make contact with the lower face of the cover  19  thus flexing the resilient extremities which contain them upon adjusting the fastening means which join the plate  18  to the cup  17 , grasping unto the cover in a clamp manner. 
     Aspiration Mechanism, Mixture and Distribution of Mixture in the Burner&#39;s Chamber and Stability Chamber 
       FIG. 12  shows a cross cut of a burner&#39;s system of the present invention mounted on a kitchen or stove  19  surface. As was previously mentioned, a diffuser plate  18  or a lower plate  53  can be used or not used, depending upon the material employed for the kitchen or stove  19  cover. In this way, underneath the body of the burner  11  or said diffuser plate  18 , a cup  17  is grasped by means of screws or any other type of assembly (see  FIGS. 12 ,  14   a , and  14   b ) which itself supports. Said cup  17  in its lower part houses the mini-connector  15  which itself houses a nozzle  14 , which then provides and directs the combustible towards the Venturi tube  12 . Precisely between the lower part of the Venturi tube  12  and the upper face of the nozzle  14 , there is a space which allows the passage of primary air to the Venturi  12 , it is at this point where the burner system extracts the primary air, which is mixed in the burner&#39;s interior  25 . In a preferred embodiment said primary air enters under the body of the burner  11  and is transported towards the cup  17  to later be suctioned by the Venturi tube  12 , this embodiment is particularly useful when the burner  25  is placed on a kitchen or stove which has an oven because the combustion gases as well as the hot and contaminated air from the oven is not aspirated by the burner  25 . In another alternative embodiment grooves or windows  50  are set on the lower part of the cup  17  (see  FIGS. 12 ,  15   a ,  15   b  and  15   c ) to achieve aspiration of the primary air precisely in the zone adjacent to the nozzle  14 . In this way, we have double aspiration both under the body of the burner  11  as well as under the cover for kitchen or stove  19 . The windows  50  on the lower part of the cup  17  allow the mass flow of primary air regulating the primary air surrounding the lower outer part of the cup  17 , toward the inner part of the cup  17 , allowing for said primary air to be dragged with an adequate quantity, acceleration and velocity towards the Venturi tube  12  and the nozzle  14 . This mechanism allows the aspiration of the primary air with greater ease of the burner  25 , knowing that the mass flow of primary air aspirated through the windows  50  as well as preventing the turbulence which could be created in the trajectory in the situation where it is only aspirated underneath the body of the burner  11 . This embodiment is peculiarly conducive when the kitchen or stove unto which the burner  25  has been mounted does not have an oven on its lower part. It should be highlighted that in any embodiment of primary air aspiration, the cup  17  allows the control of air flow towards the Venturi tube  12 , even when strong air currents exist on the surface. Another embodiment of the cup  17  exists when the windows are very large  50 , with such luck that it is transformed into a “spider” type support allowing free passage without any regulation of the air towards the aspiration mouth of the Venturi tube  12 . 
     Another alternative embodiment of the cup  17  is shown in  FIGS. 15   b ,  15   c  and  15   d  where there is a cup  17  which is crowned with a lower plate  53  which helps to achieve a greater contact area with the cover&#39;s lower face  19 , this is particularly useful when said cover  19  is made of fragile materials such as glass or ceramics so that having a larger contact area to support the burner  25  is quite useful as the forces on the grasping area are reduced greatly. In the same way, said lower plate  53  in an alternative embodiment may have a plurality of resilient extremities (the number of these will depend on the specific size and design) said resilient extremities on their border farthest from the cup  17  have some rubbers  54 , which may be made of a soft material, such as vinyl or rubber, among others, these are fastened to the extremities by means of a glue or by any means of non-retractable insertion mechanism (“snaps”) upon confining the cover  19  between the plate  18  and the lower plate  53 . Said rubbers  54  make contact with the cover&#39;s  19  lower face thus flexing the resilient extremities which contain them by adjusting the fastening means which join the plate  18  to the cup  17 , grasping in this way the cover  19  in a crimping manner (see  FIG. 15   d ). 
     With such luck that any of the configurations which the cup  17  may have, the combustible-air mixture is dragged by the Venturi effect within the Venturi tube  17 , said mixture collides with the lid  10  where energy and velocity are lost. In the mixture chamber  23  which contains more or less the volume of a cylinder with a diameter slightly greater than the diameter of the Venturi tube  17 , the diameter of said chamber mixture  23  is dimensioned with utmost preciseness, because if it is too small this would not allow for proper mixture of the combustible air, and if it is too large, velocity of the mixture is lost producing small darts of flame, lacking shape, force and highly inefficient. Thus, upon pursuing its path through the burner&#39;s interior the mixture finds the platform  21 , which is charged with the function of ordering the mixture flow so that it arrives to the ports with enough velocity, even the more distant ones on the discharge zone  24  of the Venturi tube  17 . 
     The flame darts are produced in the ports, which have a particular geometry;  FIGS. 5 and 6  show a cross cut of a burner  25 , whereas  FIG. 5  does not show a lid  10 ,  FIG. 5  does show a lid. In  FIG. 5  the Venturi tube  12  can be seen through which the mixture travels towards its upper part, where upon reaching the discharge zone  24  this expands to lose velocity. Said discharge zone  24  is found on the high part of the platform  21 . The platform in this zone in an alternative embodiment may be generally plane and later follow a curvature of the curved surface which defines it. AS can be appreciated in  FIGS. 2 and 3  the discharge zone  24  is delimited by a circumference tangential to the horizontal curvature of the platform, which is substantially parallel to the horizontal curvature of the crenellated wall  26  creating a channel  35  which is formed between the inner face of said crenellated wall  26  and the inner lateral face of the platform  21  (see  FIGS. 5 and 6 ). Said channel  35  helps in the transport and distribution of the mixture in a homogenous way along the length of the crenellated wall  26 , in addition to regulating its velocity ensuring that there is sufficient mixture with the necessary energy to be able to cross the ports  20  to later ignite or turn on and form the flame darts. 
     As can be observed in  FIGS. 5 and 6 , the ports follow the angle α formed between its base and the horizontal, this angle α gives the port an upward inclination, which allows it to direct the flame dart towards the outside and towards above, achieving through this a dart which attempts to cover a higher contact area with the utensil to be heated, as well as an efficient combustion dart. To help in the formation of the dart granting it better appearance and stability, the lid  10  is given a bevel  33  and extremity  34  on the lower part of its edge or border, which (bevel  33  and extremity  34 ) run in parallel form to the rib  32 . 
     As can be seen in  FIGS. 9   a ,  9   b ,  10 ,  11   a  and  11   b  the vertexes  27  are set with at least one secondary port  36  or  37  which allows for the transport of the flame between the ports  20  form a first crenellated wall  26  and the ports of a second crenellated wall  26 , where the crenellated walls are in contact with the same vertex  27 . In this way on the vertexes  27  can be set a series of ports, said secondary ports  36  or  37  in addition to functioning as transport ports also increase the burner&#39;s  25  thermal potential. 
     In a preferred embodiment of the body of the burner  11 , the peculiar design of the secondary ports&#39;  36  of the vertexes  27  follows that at the end of the platform  21  in the part farthest from the mixture chamber  23  of the burner  25 , precisely at the vertexes  27 , the mixture&#39;s velocity is very low thus said mixture fluid has low energy to be able to cross a port with the main port  20  design, so that the cross cut section, as well as the port area, of said secondary ports  36  is smaller in comparison to the main ports  20 , which helps accelerate the mixture fluid through the channel or duct of the secondary port  36  creating a small dart only outwardly directed, since the secondary ports  36  are not set with an angle or divergent as are the main ports  20 , however, the base angle of the secondary ports  36  oscillates between approximately 0° and 10°. 
     In an alternative embodiment of the body of the burner  11  the secondary ports  37  service a stability chamber  28  found between the extreme part of the platform  21  and the vertex  27  (see  FIGS. 10 ,  11   a  and  11   b ). Said ports  37  are formed from a groove over the vertex  27 , of a given width and depth which create a port area which is approximately from 5 mm 2  to 30 mm 2 , which are calculated according to the burner  25  size, the combustible to be used and the stability chamber  28  size, among other design considerations. In this manner, the port is delimited in its upper part by the lid  10 , and in this way, the port&#39;s duct  37  is formed. The stability chamber is found precisely at the area farthest from the discharge area  24  where the mixture no longer has sufficient kinetic energy, the fluid velocity of the mixture being very low. In this manner, in the vertex area  27  a stability chamber  28  is formed in a shape similar to a pentagon somewhat irregular or an elongated horseshoe, and which is set at some point over its periphery with at least one transference groove  49 , which allows the passage of a determined quantity of (fluid) mixture towards the inner part of the stability chamber  28 . The objective of said stability chamber  28  is to guard a small flame within the burner  25 , so that in case there is a lot of wind or the air velocity surrounding the burner  25  is high, to such a degree that it may turn off one or some of the dart flames of the ports  20 , a flame guarded within the stability chamber  28  may be guarded from said air currents, and said guarded flame in the stability chamber  28  may be able to reignite or turn on the remainder of the ports  20  and thus recovering the lost flame darts. The stability chamber  28  safeguards the mixture with low or null velocity which allows for always being able to burn mixture without it being dispersed into the inner part of the burner  25 . 
     Preferred Embodiment with Central Burner  39   
       FIGS. 17   a  and  17   b  show the central body of the burner  39  in isometric. Said central burner body  39  is preferably a single-piece solid truncated cone, which is preferably manufactured from some metal or alloy which is able to withstand high temperatures as well as manufacture ease. It can be seen that on its periphery face it has  40  ports set in low relief, which follow an angle β from the described cone between the perimeter on its lower and upper face. The height combined with the angle β of the central body of the burner  39  allows for the creation of darts which are substantially directed towards above and outside, with sufficient length so that the heat produced by them may ignite the darts produced by the ports  20  found in the crenellated wall  26  of the body of the burner  11  near said central burner  39 , without allowing the darts produced by said ports  40  to touch, collide or collapse unto or with the darts produced by said ports  20 . 
       FIGS. 17   c  and  18  show that the lid  10  is set with a cavity precisely in its center, where a separator ring  38  is placed which supports the central burner  39 . Said separator ring, in addition to supporting the body of the burner  39  also helps to separate the upper face of the lid  10  of the central burner  39 , since if this latter one were to be set without said ring  38 , the mixture which exits through the central cavity through the ports  40  of the central burner  39 , would have to follow its flow over the lid&#39;s  10  upper face&#39;s surface (“capacity limit” effect) so that it is necessary to separate the central burner from the lids&#39;  10  upper face. Thus with the ring  38 , we achieve separating in addition to supporting the central burner  39  creating a type of step. Upon passing through the Venturi tube  12  the mixture reaches a discharge zone  24  to expand within the mixture chamber  23 . Since the cavity where the central burner  39  is placed is found precisely above the discussed discharge zone  24 , the mixture contains enough kinetic energy to exit through the ports  40  of the central burner  39 , and given their placement, the dart flames can be directed towards the outside or towards above, which allows for the ignition or turning on of the ports  20  near the central burner  39 , in addition to having better contact with the utensil to be heated. 
       FIG. 17   c  shows a preferred embodiment to the embodiment discussed in the above paragraph, where said cavity at the center of the lid  10  may contain a beam  51  which crosses diametrically, this with the purpose of being able to place a fastening means  52  such as could be a screw, rivet or similar which may grasp and center the central burner  39  in the cavity with the lid  10 , this way guaranteeing that said central burner  39  is always in the correct position, since if this were not to be the case, it could largely impact the formation of the flame darts. The lower face of the central burner  39  may, in a preferred embodiment have a diametrical groove which houses the upper part or back spine of the beam (see  FIG. 17   e ). 
     Furthermore, a second preferred embodiment to the one described in the preceding paragraph may be seen in  FIGS. 17   d ,  17   e  and  17   f , where the lid  10  is set with a slice section  61  which covers the central cavity which houses the central burner  39 , which has the function of regulating the mass flow of the mixture towards the ports  40  of the central burner  39 , knowing that as was previously explained, the mixture to pass through the Venturi tube  12  reaches the discharge zone  24  to later expand within the mixture chamber  23 . Since the cavity where the central burner  39  is placed is found precisely above the discussed discharge zone  24 , the mixture contains enough kinetic energy to exit through the ports  40  of the central burner  39 , where the case could be that the mixture&#39;s kinetic energy be so high that it create dart flames which are too long or even flame detachment, and thus the use of a slice section  61  was conceived, knowing that, the mixture upon not being able to follow its natural flow given that the slice section  61  interferes with it, the flow of mixture is forced to circumvent said slice section  61 , thus decelerating the flow of the mixture. Additionally, separation “a” between the slice section  61  and the edge or periphery of the central cavity on the lid  20  also aids in regulating the flow of mixture towards the ports  40  of the central burner  39 . Thus, said slice section  61  which may be made from a sheet of steel or any metal or any alloy which can withstand high temperatures, has to be narrow enough with a constant cross section to not be in the way of the platform  21  or the flow mixture. Said slice section  61  may have a geometry similar to a disc or polygon and in an alternative embodiment its horizontal faces may follow a curved surface which describes the lid  10  or the platform  21 . 
     Now, the slice section  61  and the edge or periphery of the central cavity on the lid  20  have a vertical distance “a” varying approximately between 0.5 mm and 5 mm and this may be regulated in one of two ways, the first uses at least one block  62  set on the lid&#39;s  10  lower face, whereas the second uses a neck  63  protruding over the beam&#39;s  51  center, precisely surrounding the hole through which the fastening means  52  passes, where the height “a” is similar to the height of the protrusion in the neck  63 . In this way, by having a height “a” between the periphery of the lid&#39;s  10  central cavity and the slice section  61 , the mass flow of mixture is regulated towards the ports  40  of the burner  39 , so that the mixture arrives with the sufficient kinetic energy to generate uniform flame darts with ideal characteristics, completely correcting the separation of flame problem which could be generated in the ports  40  of the central burner  39 . 
     Tandem Burner Embodiment 
     Another preferred embodiment of the present invention is shown in  FIGS. 19   a ,  19   b ,  20 ,  21 ,  22   a ,  22   b ,  22   c ,  23   a ,  23   b ,  23   c ,  24   a ,  24   b ,  24   c ,  25  and  26  where a system of burners which comprises a body of the burner  25  and on its upper part a central burner  39 , which has a Venturi tube  12 ′ which is independent from the body of the burner  11 ; said embodiment is discussed as follows: 
       FIGS. 19   a  and  19   b  allow us to glimpse the embodiment of burner  25  being discussed, where in  FIG. 19   a  we can see that the central burner  39  follows the geometric shape of the lid&#39;s  10  periphery. Different from the previous embodiments, the central burner  39  comprises a burner body  11 ′ made of crenellated walls  26 ′ with its own Venturi tube  12 ′″ with such luck that a burner is over another (tandem or stacked) which both function independently. 
       FIG. 20  shows an exploded view of the burner  25  of the embodiment being discussed, where a mask  57  is placed over the body of the burner  11 , which has some openings or bays  58  on its vertexes which have substantially the same geometry than those of the stability chamber  28  on the vertexes  27 , knowing that said mask  57  seals the inner chamber from the body of the burner  11  so that the mixture of the body of the burner  11  not be stirred with the mixture of the central burner  39 . The lid  10  is placed over said mask also covering the ports  20  of the crenellated wall  26 ; the lid itself  10 ′ covers the ports of the crenellated wall  26 ′. The lower face of the body of the burner  11  rests on the cover  19 : in a preferred embodiment, between the lower face of the body of the burner  11  and the cover  19  a diffuser plate  18  is set; on the lower face of the cover  19  a cup  17  is placed which may or may not have a lower plate  53 ; it should be noted that the lid  10  is set with a separator ring  38 ′ (see  FIG. 23   a ), where said separator ring  38 ′ does not have the same function as that of the ring  38  shown in  FIG. 18 , as the separator ring  38 ′ does not support the central body of the burner  39  nor cooperate with it to form the port duct  40 , or the angle θ; since as was described in the preceding lines the central burner  39  in tandem is supported or forms a monolithic part of the mask  57 , and given this it does not rest on said separator ring  38 ′, even so, said separator ring  38 ′ maintains one of the functions of the separator ring  38 , which is to help avoid the previously described “capacity limit” effect. 
       FIG. 21   a  shows the body of the burner  11  of the embodiment being described; conceptually, as well as geometrically, its equal to the one described above in the section labeled “Body of the burner  11 ” knowing that it is also formed by the same crenellated walls  26 , the ports  20 , as well as the port ducts  20  being equal to or sharing the same design criteria, geometry and conceptual features, with the exception that this embodiment could not have a platform  21  and that the Venturi tube  12  which feeds it is not placed in the geometric center of this; it should also be highlighted that the vertical inner face of the crenellated wall  26   h  as a back spine  59  which it supports and is coupled to the mask  57 , because as was mentioned in the lines above, the mask  57  seals the chamber of the body of the burner  11 , however the ports  20 , the duct ports as well as the upper part of the crenellated walls  26  are covered by the lid  10  such as was described in the previous embodiments; an alternative embodiment to the one presently being described, is shown in  FIG. 21   c , where vertical walls or barrier rails  64  which are parallel to the back spine  59  or vertical inner wall of the crenellated wall  26 , said barrier rails have a height such that they do not reach the lid&#39;s  10  lower face, so that a gap exists or a distance between the upper face of said barrier wall and the lid&#39;s  10  lower face preferably varying between 0.5 mm to 5 mm; now then, the mixture upon not being able to follow its natural flow given that the barrier rail  64  interferes with it, the mixture flow is forced to surround said barrier rail  64 , thus decelerating the mixture flow, in addition to the separation or gap between the barrier rail&#39;s  64  upper face and the lid&#39;s  10  lower face also aids in regulating the mixture flow towards the ports  20 ; said barrier rail can be partly molded or machined to the body of the burner  11  or in some way mechanically inserted into this. 
     Mask  57   
     The mask  57  works in a similar manner to the lid  10 , knowing that part of the geometry of a curved surface over the horizontal plane, where said curved surface could possibly be a dome, sphere or parabolic among others. Thus this curved surface is cut by another curved surface over the horizontal plane which is a curve very similar to the one being used to form the crenellated wall  26 , so that following its contours is important. In this same vein, the mask  57  follows the contour of the body of the burner  11  periphery, so that its geometry will define the mask&#39;s  57  contour. It should also be highlighted that the mask, at its vertexes and ends comprises a recess or bay  58  of the same contour shape as that of the stability chamber  28  at the vertexes  27  of the body of the burner  11 , this is because the stability chamber  28  is covered by the lid  10 . 
     From  FIGS. 22   b  and  22   c  posts  60  on the burner&#39;s lower part can be noted which render support to the mask  57  on the body of the burner  11  and also help maintain the correct distance between the inner face of the body of the burner  11  chamber and the mask&#39;s  57  lower face. The Venturi tube  12 ′ which feeds the mixture to the upper burner  39  can also be noted. 
     Said central burner  39  is substantially set on the center on the upper face of the mask  57 , being formed by crenellated walls  26 ′ which follow the same geometric and design criteria of the crenellated walls  26  of the body of the burner  11 . The same applies to the ports  20 ′ of the central burner  39 , given that they also follow the same geometry and design criteria as those in the ports  20  of the body of the burner  11 , on a smaller scale. 
       FIGS. 24   a ,  24   b  and  24   c  show an alternative embodiment of the cup with the pertinent modifications for the embodiment of the tandem burner presently being discussed. The centering ribs  43 , spark plug support  55  and windows  50  among others are the same in concept, geometry and design to those of the cup  17  embodiments previously described, their variants or embodiments being applicable to the present cup  17  embodiment, with the exception that in this case two entries for the combustible are required instead of one, thus it comprises two mini-connectors  15 ,  15 ′ as well as two supports  16  and two nozzles  14 . 
     Mechanism for Aspiration and Distribution of the Mixture in the Tandem Burner Embodiment 
       FIG. 25  shows the route followed by the combustible, the air and the mixture within the burner  25  in the present embodiment. Thus, similar to previous embodiments, the primary air enters below the lower face of the body of the burner  11 . It should be highlighted that in a preferred embodiment to the one presently being discussed, the burner assembly  25  may not be set with a diffuser plate  18 . Thus, the primary air runs below the lower face of the burner  11 , thanks to height “v” set by the feet  31 , to be guided towards the cup′  17  lower or middle part. Said cup  17  itself has in its lower part a pair of mini-connectors  15 ,  15 ′ and nozzles  14  with independent entries for the combustible, which is injected towards the Venturi tubes  12 ,  12 ′ respectively. Precisely in the vicinity of the lower part of said Venturi tubes  12 ,  12 ′ the primary air is suctioned due to the venturi effect formed in the Venturi tubes  12 ,  12 ′, because the combustible is injected by means of the nozzles  14 , thus the mixture of the primary combustible air is dragged through the Venturi tube  12  and directed towards the discharge zone  24  within the mixture chamber  23  of the body of the burner  11 . It should be remembered that the chamber of the body of the burner  11  in this embodiment is bound in its upper part by the mask  57 , which seals the entire periphery of the chamber of the body of the burner  11 , only allowing the mixture&#39;s exit through the port ducts  20  (or in an alternative embodiment it also allows the mixture&#39;s exit through the secondary ports  42  which are found on the crenellates  46 ). It can also be set with some transferring grooves  49  which allow the mixture to pass towards the stability chamber  28  found on the vertexes  27 ; similar to the previous embodiments the vertexes  27  may have one or several ports  36  or  37 . On the other hand, the Venturi tube  12 ′ suctions the primary air thanks to the mixture&#39;s velocity which is directed towards its interior, thus the mixture is directed towards the discharge zone  24 ′ of the central burner  39 , which in a preferred embodiment to the one presently being discussed, comprises a platform  21 ′ and a channel  35 ′ whose function is equal to or similar to the one already discussed for the platform  21  and channel  35  of the body of the burner  11  for the embodiment which lacks the stability chambers; with the end purpose of avoiding repetition, said functionality, design, geometry and additional considerations are fully described; thus by means of this mechanism the mixture reaches the ports  20 ′ of the crenellated walls  26 ′ which are covered by the lid  10 ′, in the same manner as exists for the body of the burner  11 . 
     An alternative embodiment to all of the ones described above is shown in  FIGS. 26   a ,  26   b  where on the lid  10  it is possible to have at least one vertical conduit  56  which traverses the body of the burner  11  to transport the air found in the lids&#39;  10  vicinity towards the lower face of the body of the burner  11 , to thus deliver primary air to the suctioning mouth of the Venturi tube  12 . 
     Alterations to the structure described in the present document could be foreseen by those with expertise in the field. However, it should be understood that the present description is related with the preferred embodiments of the invention, which are solely for illustrative purposes, and should not be construed as a limitation of the invention. All modifications which do not part from the spirit of the invention shall be included within the body of the attached claims. 
     Having described the invention in sufficient detail, it is found to have industrial applicability by being manufacturable and adaptable for grills, stoves or kitchens for household use, as well as having undergone the previous art study and that which emerges from the present specification, is found to have a high degree of inventive activity so that the following are being claimed.