This application claims priority to Mexican Patent Application No. MX/a/2015/008660 filed Jul. 2, 2016, and incorporated herein by reference in its entirety.
The present invention relates to a triple ring burner which allows activating in a selective manner all of the rings, a part thereof or at least one of the rings. Said burner is able to place different size receptacles over said burner, in such a way that if a small receptacle were to be placed, only one ring would be used, if a medium sized receptacle were to be placed, then two rings would be used and if a large sized receptacle were to be placed, then three rings would be used.
Currently in the market, a considerable amount of burners for household use are in existence, initially the main objective of these, was to make available a flame which would be cast on the utensils to be heated, without consideration to aspects regarding efficiency of use of the combustibles used or any ecological concerns; through the course of time, the design of burners has evolved towards triple flame burners, however, the energy efficiency of the same has not been taken into account.
Document MX2009014047, which belongs to the state of the art, anticipates a triple ring burner which comprises a burner head with a central ring, an intermediate ring and an outer ring, the central ring is found in communication with the intermediate ring by means of a plurality of bridges, said rings present a plurality of combustion ports, the ports of the outer rings are helicoid, causing the flames produced in said combustion ports to be inclined. Given that the combustion ports of the outer ring are helicoid, the flame darts produced by said combustion ports tend to separate themselves from the burner, which causes incorrect ignition for the combustible-air mixture, which in turn triggers the kitchen utensils placed over said burner to end up with soot.
U.S. Pat. No. 5,277,576, which belongs to the state of the art, anticipates a double ring burner comprising a burner head with a central ring and an outer ring, the central ring presents a plurality of horizontal combustion ports, while the outer ring presents a plurality of inclined combustion ports. Said burner does not anticipate that the central and outer rings be found interconnected by means of a plurality of bridges, similarly, it does not anticipate a flame ring found between the central ring and the outer ring, neither does it anticipate that the central combustion ports have an inclination, thereby achieving the same to be longer.
Document WO99/08046, which belongs to the state of the art, anticipates a triple ring burner comprising a burner head with a central ring, an intermediate ring and an outer ring, said rings present a plurality of combustion ports, the combustion ports are inclined, the inclination of the combustion ports of the intermediary ring is different from the inclination of the combustion ports of the central ring and those of the outer ring. However, given that the combustion ports are formed on the central and peripheral cover lids, combustible-air mixture leakage occurs at the joint of said cover lids with the central and peripheral bodies of said burner, thereby causing leaks of the combustible-air mixture, and therefore decreasing the energy efficiency of said burner.
Present invention seeks resolving the problems concerning the energy efficiency by means of structural modifications present in present invention.
Present invention relates to a triple ring burner with flame comprising a central burner with a central cover lid and a toroidal burner with a toroidal cover lid, wherein the central burner is found coupled unto the toroidal burner by means of at least one bridge, said central burner comprises a first Venturi tube which receives and emits a first combustible-air pre-mixture for the central burner; a first mixture chamber which receives said first pre-mixture and homogenizes it, creating a first combustible-air mixture; a first distribution channel for distributing the first combustible-air mixture to a plurality of central combustion ports of said central burner; a circumferential groove set on said plurality of main central combustion ports in order to form a ring of flames; said toroidal burner comprises a second Venturi tube which receives and emits a second combustible-air pre-mixture; a second mixture chamber which receives said second pre-mixture and homogenizes it, creating a second combustible-air mixture; a second distribution channel for distributing the second combustible-air mixture; an inner crenellated wall and an outer crenellated wall, said crenellated walls are separated by the second distribution channel and with at least main combustion ports and secondary combustion ports; over the inner crenellated wall, at least one inner barrier rail with inner barrier rail combustion ports; over the outer crenellated wall, at least one outer barrier rail with outer barrier rail combustion ports; a flame stability and transfer chamber with a pair of radial walls which divide the distribution channel from the inner crenellated wall towards the outer crenellated wall, said radial walls present a plurality of transversal grooves which form combustion ports for the transfer of flame and are inserted into said radial walls; said radial walls present inner and outer ends, the inner end is in connection with a peripheral crenel for inner stability and transfer and the outer end is in connection with at least one peripheral crenel for outer stability and transfer.
The illustrative embodiment may be described referencing the accompanying figures, which refer to:
In
a show a detailed view of the bridges which connect the central burner with a single ring to the double ring toroidal burner.
The following description references
The use of the term “approximately” provides an additional determined range. The term is defined in the following manner. The additional range provided by the term is +10%. By way of example, but not in a limitative manner, if it reads “approximately between 25° to 41°”, the exact range is between 22.5° and 45.1°, or yet between 27.5° and 45.1°, or yet between 22.5° and 36.9° or between 27.5° and 36.9°. Any of the possibilities described above are covered through the use of the term “approximately”.
In
We shall begin by explaining the functioning of the central burner (10), once the multiple selection valve (not shown) is activated, in such a way that it allows the flow of combustible (3) from a first nozzle and a first combustion port nozzle (7) towards a first Venturi tube (104), in such a way that due to the difference in velocities, the primary air (1) is dragged towards the inner part of said first Venturi tube (104), carrying out a first combustible-air (4) pre-mixture which presents a turbulent flow, said first combustible-air (4) pre-mixture which exits at a first velocity, is not sufficiently uniform to carry out an adequate dart flame ignition, so that the first combustible-air (4) pre-mixture continues its trajectory along the length of the first Venturi tube (104) and is expelled through the exit (103) of the first Venturi tube (104), in such a way that upon flowing out into the first mixture chamber (123), said first combustible-air (4) pre-mixture is homogenized in the surrounding areas close to the exit of the first Venturi tube (104), upon flowing from the same and knocking against the lower part of the central cover lid (40) which forms part of the first mixture chamber (123), where the first final mixture of the combustible-air (9) takes place at a second velocity for decelerating or decreasing the energy of the mixture, which helps decrease the energy of the first final combustible-air mixture (9) for avoiding flame detachment in the central combustion ports (115), afterwards it is distributed through the first distribution channel (106) to be dosed in a controlled manner in the combustion ports and undertake an adequate dart flame ignition, additionally, said dart flame is fed by secondary air (2) emanating from the environment surroundings.
Similarly, for the activating of the toroidal burner (2), the multiple selection valve (not shown) becomes activated for a second time, in such a manner that it allows for the flow of combustible (3) from a second nozzle and a second combustion port nozzle (8) towards a second Venturi tube (224), in such a way that due to the difference in velocities, the primary air (1) is dragged towards the inner part of said second Venturi tube (224), carrying out a second combustible-air (5) pre-mixture which presents a turbulent flow, said second combustible-air (5) pre-mixture which exits at a first velocity, is not sufficiently uniform to carry out an adequate dart flame ignition, so that the second combustible-air (5) pre-mixture continues its trajectory along the length of the second Venturi tube (224) and is expelled through the exit (223) of the second Venturi tube (224), in such a way that upon flowing out into the second mixture chamber (237), said second combustible-air (5) pre-mixture is homogenized in the surrounding areas close to the exit of the second Venturi tube (224), upon flowing from the same and knocking against the lower part of the toroidal cover lid (50) which forms part of the second mixture chamber (237), where the second final mixture of the combustible-air (10) takes place at a second velocity for decelerating or decreasing the energy of the mixture, and ingresses the barrier rails (225, 228) which help decrease the energy of mixture for avoiding flame detachment in the combustion ports near the second mixture chamber (237), afterwards it is distributed through the second distribution channel (205) to be dosed in a controlled manner in the combustion ports and undertake an adequate dart flame ignition, additionally, said dart flame is fed by secondary air (2) emanating from the environment surroundings.
In
Over the central burner (10) with a single ring a central cover lid (40) is provided, while over the double ring toroidal burner (20) a toroidal cover lid (50) is provided.
In
Continuing onwards to
The exit (103) of the first Venturi tube (104) extends up to a height which is over the highest point of the first vertical section (108), but underneath the highest point of the second inclined section (109).
Said exit (103) of the first Venturi tube (104) comprises an outer section which is substantially horizontal (112) and an inner flared section (113), the inner flared section (113) serves for accelerating the combustible air mixture of the first mixture chamber (123) towards the first distribution channel (106).
Nearby the lower surface (102) of the central burner (10) with a single ring, said first Venturi tube (104) is found, whether it be as a monolithic body or in an integrated shape into said central burner (10) with a single ring, in said first Venturi tube (104) is Where a first pre-mixture of the combustible (3) is carried out together with the primary air (1) which enters into the first Venturi tube (104); similarly on the lower surface (102) a peripheral bumper (114) is found which comes into contact with the cover (6) where said burner will be installed.
In so far as
With reference to
Some of the crenels (116) present a back section (120) which extends itself towards the first distribution channel (106), said back section (120) presents a spur (121) which extends upwardly thereof up to a height below the highest point of the second section (109) of the crenellated wall (105).
In an embodiment, on the third section (110) of the central crenellated wall (105) an opening (122) is found where a spark plug (not shown) protrudes for the igniting of said central burner (10) with a single ring.
In an alternative embodiment which is not shown, there is no spark plug to ignite the combustible-air mixture emanating from any of the burners, so that the ignition of said mixture is carried out by means of an external flame (matches, lighter, etc).
Similarly, in
The cover lid (40) presents a concave lower surface (401) which defines an upper limit for the central mixture chamber (123), said concave lower surface (401) presents a transition zone (402) which is rounded towards a first peripheral wall (403) inclined downwardly and outwardly, said inclination in relation to the horizontal one, presents an angle (δ) which is between approximately 60° to approximately 80°, preferably approximately 70°, a plane border (404) which is horizontal at the end of said peripheral wall (403), said plane border (404) rests on the space formed between the spur (121) and the second section (109) of the central crenellated wall (105), a second peripheral wall (405) with an inclination angle (a′) inclined outwardly and upwardly from the plane border (404) which rests over the second inclined section (109) of the central crenellated wall delimiting the upper border of the main central combustion ports (117), said inclination angle (α′) is substantially equal to the inclination angle (α) of the second section (109) of the central crenellated wall (105), a second transition zone (406) which is rounded between the second peripheral wall (405) and a rounded protuberance (407) which extends downwardly at the end of said second transition zone (406), and an upper convex surface (408); the purpose of said rounded protuberance (407) which extends downwardly is to anchor the dart flame to the central burner (105) with a single ring.
In an embodiment which is not shown, the central cover lid (40) presents a straight horizontal end instead of said rounded protuberance (407).
In
The back wall (206) of the second distribution channel (205) comprises three sections, a first central section (214) and two outer sections (215, 216); the outer sections (215, 216) are inclined towards the central section (214) of said back wall. (206), the end sections of the outer sections (215, 216) of said back wall (206) are higher than the central section (214) of said back wall (206); it should be noted that the second distribution channel (205) has a transversal section which is uniform, in such a way that the area through which the flow of the combustible-air mixture (10) passes through is kept constant.
In
In
In an alternative embodiment not shown, on the third section (209) of the outer crenellated wall (204) an opening is found where a spark plug (not shown) protrudes for the igniting of said peripheral double ring burner (20). Similarly, in the third (212) and fourth (213) sections of the inner crenellated wall (203) an opening is found (not shown) from which a spark plug (not shown) protrudes for the igniting of said peripheral double ring burner (20).
Adjoining the exit (223) of the second Venturi tube (224) an inner harrier rail (225) is found on the inner wall (203) and an outer barrier rail (228) on the outer wall (204), said inner and outer barrier rails (225, 228) present a sinuous trajectory which follows the second combustible-air mixture (10) prior to becoming fully incorporated into the second distribution channel (205), so upon presenting a turbulent flow to the inner part of said barrier rails, the energy of the combustible-air (10) is dissipated and thus the particles which enter the combustion ports are able to have a lower velocity, thereby allowing adequate ignition of said final combustible-air mixture.
In
in
Similarly, said double ring toroidal burner (20) presents a toroidal cover lid (50), preferably made of steel. Said toroidal cover lid (50) is placed over the peripheral combustion ports of the double ring toroidal burner (20).
In
Said multiple flame burner (1) is placed over a support (not shown) which joins with a surface of the stove, for example, by means of perforations and screws, on this support, both the first Venturi tube (104) as well as the second Venturi tube (224) are housed, on the lower part of the support, a distributor for combustible is housed, with two exits for combustible unto which the corresponding combustible nozzle is connected; the distributor of combustible is designed in such a way that it may be connected to a simple exit valve (not shown), thereby controlling the heating intensity.
In
Decreasing the thickness of the at least one bridge (30) is due to that once the three rings of the triple ring burner (100) are found functioning, the heat which is concentrated in the central burner (10) and the inner crenellated wall (203) of the double ring toroidal burner (20), said heat causes that said at least one bridge be deformed by torsion, and once the heat is dissipated, said at least one bridge (30) upon cooling down is capable of returning to its original shape; if said at least one bridge (30) had a greater thickness, it would not be possible for it to return to its original shape, which would cause that the flame dart of the central burner (10) come out as deviated towards a side, thereby creating a lower energy efficiency than what would otherwise be expected.
Similarly, the exit of the main peripheral inner combustion ports (2191) is found on a horizontal plane underneath the horizontal plane which is found at the exit of the main central combustion ports (117), given that if the plane at which both combustion ports are found were to be identical, given the velocity at which the combustible air mixture exits from said combustion ports, a turbulence would be created which would not allow that the combustible-air mixture emanating form said main inner combustion ports and the main central combustion ports would be able to ignite.
In
The area of the main central combustion ports is different from that of the combustion port area of the outer peripheral combustion ports and of the combustion port area of the inner peripheral combustion ports, so that the volume of the combustible-air mixture is different, so that the heating velocity of the burners is different.
The functioning of the multiple flame burner of present invention is the following:
If one wishes to work with only one central flame ring a multiple selection valve (not shown) is activated which allows the flow of combustible (3) towards the first Venturi tube (104), given the difference in velocities of said combustible (3), primary air (1) from the surroundings is dragged towards the inner part of said first Venturi tube (104), forming a first combustible-air pre-mixture (4), which presents a turbulent flow which exits at a first velocity, which itself is not sufficiently uniform to carry out an adequate dart flame ignition, so that the combustible-air pre-mixture (4) continues its trajectory along the length of the first Venturi tube (104) and is expelled through the exit (103) of the first Venturi tube (104), said combustible-air pre-mixture (4) is homogenized in the proximal vicinity of the exit (223) of the first Venturi tube (104), upon flowing out from the same and colliding against the lower concave surface (401) of the central cover lid (40) which forms part of the first mixture chamber (123), where the first combustible-air mixture (9) takes place at a second velocity in order to decelerate or decrease the energy of the mixture, and is distributed uniformly through the first distribution channel (106) at a second velocity to exit through the main central combustion ports (117), said first combustible-air mixture (9) presents a sufficient uniformity to be able to carry out an adequate flame dart ignition, said second velocity being lesser than the first velocity, in turn the spark plug (not shown) emits a spark, which comes into contact with the first combustible-air mixture (9) which exits through the main central combustion ports (117) to ignite it and create the central ring of flames, this flame dart extends in a radial manner to the remaining main central combustion ports by means of a flame ring (119) formed by the circumferential groove (118), the mass of the combustible-air mixture which is burnt in the flame darts is the same as that which is distributed in the distribution channel (106), similarly, the exit velocity of the first combustible-air mixture (9) is determinant for the length of flame dart Which is formed at the main central combustion ports (117), if the combustible-air mixture (9) were to not decrease its velocity from a first velocity to a second velocity, the flame dart would completely detach from said central burner (10).
If, on the other hand, one wished to work with three ring flames, activatation of said multiple selection valve (not shown) for a second time would occur, in such a way that it allows the flow of combustible towards the second Venturi tube (224), given the difference in velocities of said combustible, primary air (1) from the surroundings is dragged towards the inner part of said second Venturi tube (224), forming a second combustible-air pre-mixture (5), which presents a turbulent flow which exits at a first velocity, which itself is not sufficiently uniform to carry out an adequate dart flame ignition, so that the second combustible-air pre-mixture (5) continues its trajectory along the length of the second Venturi tube (224) and is expelled through the exit (223) of the second Venturi tube (224), said second combustible-air pre-mixture (5) is homogenized in the proximal vicinity of the exit (224) of the second Venturi tube (224), upon flowing out from the same and colliding against the lower concave surface (501) of the toroidal cover lid (50) which forms part of the second mixture chamber (237), where the second combustible-air mixture (10) takes place at a second velocity in order to decelerate or decrease the energy of the mixture, and enters the barrier rails (225, 228), Which help decrease the energy of the mix to avoid flame detachment in the combustion ports nearby to the mixture chamber (237), afterwards it is distributed through the distribution channel (205) to exit through the main inner peripheral combustion ports (2191) and the main outer peripheral combustion ports (2192), said second mixture (10) presents the sufficient uniformity to undertake an adequate dart flame ignition, the second velocity being lower than the first velocity, the second combustible-air mixture (10) which exits through the main inner peripheral combustion ports (2191) is ignited given the contact between the final combustible-air mixture with a flame dart emanating from one of the main central combustion ports (117), once said flame dart is formed in the main inner peripheral combustion port (2191), this flame dart extends in a radial manner to the remaining main inner peripheral combustion ports (2191) by means of secondary inner peripheral combustion ports (2211), afterwards, a flame is transferred to the stability and transfer chamber (232), which then transfers the flame from the inner crenellated wall (203) towards the outer crenellated wall (204), igniting a flame dart on one of the main outer peripheral. combustion ports (2192), this flame dart extends in a radial manner to the remaining main outer peripheral combustion ports (2192) by means of secondary outer peripheral combustion ports (2212), the mass of the second combustible-air mixture (10) which is burnt in the flame darts is the same as that which is formed in the second mixture chamber (237), similarly, the exiting velocity of the second combustible air mixture (10) is determinant for the length of the flame dart which is formed at the main inner and outer peripheral combustion ports, if the second combustible-air mixture (10) were to not decrease its velocity from a first velocity to a second velocity, the flame dart would completely detach from said double ring toroidal burner.
If one wished to only work with the intermediary and outer flame rings, the selection valve would be activated for a third time in such a way that it cut the supply of combustible to the first Venturi tube (104), turning off the central flame ring.
In an alternative embodiment, the spark plug (not shown) is found set in close proximity to the main outer peripheral combustion ports (2192), once said flame dart is formed at the main outer peripheral combustion ports (2192), this flame dart extends in a radial manner to the remaining main outer peripheral combustion ports (2192) by means of secondary outer peripheral combustion ports (2212), afterwards, a flame is transferred to the stability and transfer chamber (232), which then transfers the flame from the outer crenellated wall (204) towards the inner crenellated wall (203), igniting a flame dart on one of the main inner peripheral combustion ports (2191), this flame dart extends in a radial manner to the remaining main inner peripheral combustion ports (2191) by means of secondary inner peripheral combustion ports (2211).
In a second alternative embodiment there is no spark plug, so that the flame dart is ignited by means of the contact with an outer flame, which emanates from a lighter, a match etc.
Said double ring toroidal flame burner is found installed unto a household appliance, as could be a household stove, an industrial stove, a grill etc.
Alterations to the structure hereby described for the present invention can be foreseen by those persons skilled in the art. However, it must be understood that present description is related with the preferred embodiments of the invention, which is merely for illustrative purposes and must not be construed as a limitation of present invention.
Number | Date | Country | Kind |
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MX/A/2015/008660 | Jul 2015 | MX | national |