MXPA05009585A - Gas burner with flame stabilization structure - Google Patents

Abstract

The present invention provides a gas burner (30) such as for use in a barbecue grill (10) with at least one row of burner ports (36) in a linear arrangement along the burner (30) and a flame stabilizing structure having a flame stabilizing port (46, 47) with an extent transecting the linear arrangement of the burner ports (36). The present invention further provides a flame stabilizer structure that is adapted as a standing pilot for relighting the burner port area in the event of extinguished flame.

Description

GAS BURNER WITH STRUCTURE FOR FLAME STABILIZATION DESCRIPTION Technical Field The present invention relates to a gas burner. More specifically, this invention relates to a gas burner tube having at least one stabilization structure that maintains and stabilizes the flame zone of the burner tube.

Antecedents of the Invention The popularity of gas barbecue grills and related gas appliances for the outdoors has increased immensely in the last twenty-five years. Unlike charcoal barbecue grills, gas grills use a set of burners that require a liquid fuel, such as propane or natural gas. Gas grills have proven extremely popular with consumers because they provide a controlled and uniform heat distribution. In addition, gas appliances are simple to operate, generally require less maintenance and cleaning time, and also serve for equipment for outdoor roasting.

There are numerous adaptations and different structures for grilling utensils that are used outdoors, such as barbecue grills. In general these are in the form of elongated burner tubes that are connected to each other with cross-ignition structures that provide for the transfer of the flame from one row of burners to another row. Such cross-ignition structures are sometimes provided as a peculiarity of the area where the burner is ignited by a lighter at one end near the burner. Other times this cross-ignition peculiarity is provided at a distance from the burner or at its terminal end. In any of the adaptations, the cross-ignition structure in conventional burners is placed adjacent to each row of burner ports and then produces the transfer of the flame between the two rows. An example of such structure is found in a barbecue grill structure. An example of a conventional burner device with a burner tube and cross ignition structure is found in a gas portable barbecue grill marketed by the Assignee of the present patent application. That barbecue grill uses a linear burner tube with a first end connected to a fuel source and a second end that is folded. The burner tube has two separate rows of outlet burner ports from which the fuel exits and the flames emanate. Each row of ports is placed on opposite side walls of the burner tube. At the proximal end of the tube, the bottom wall of the burner tube has an ignition channel placed together in the furnace with a lighter. When the lighter is activated, the fuel that has flowed through the ignition channel is ignited and the flame is transferred to each of the two rows of output ports. In this way, the ignition channel supplies a cross ignition to the output ports. Another example of a conventional burner device with a cross-ignition structure is that of a linear burner of molten metal with a set of outlet ports in each of the opposite side walls to provide a row of flames on each side of the burner. At one end of the burner a channel is cut into the end wall to connect the rows of burner ports on either side of the burner. A second channel is also formed in a similar manner on the opposite side of the burner. When installing the burner in the hearth for use, at least one of the channels is placed in the lighter to simultaneously ignite the rows of burners crosswise. There is also another example of a burner device of prior art technique in U.S. Pat. No. 6,102,029 to Schlosser et al., Which was assigned to the Assignee of the present invention. As shown in FIGS. 3-5, the burner device 10 generally comprises a first tube of burners 21, a second burner tube 22, a third burner 23, and a transfer tube 24. There are other types of such burner and cross ignition devices available since this peculiarity has become more common in the industry. Equipment with conventional gas burners, including fused burner elements and burner tubes, can sometimes be susceptible to changes in the flame produced by strong winds or the sudden fall of the grill cover over the hearth. The alteration of the flame that leaves the element or tube of burners can negatively affect its performance. For example, when the cover is in the open position, a gust of wind could enter the furnace causing the flame to flicker or decrease. Also the act of quickly closing the grill, such as closing the cover with a blow, can cause alteration in the flame and in some structures could extinguish it. One way to deal with this issue is by doing standard tests that are done in the industry in some counties. For example, one of the tests that is done in the barbecue grills industry is to repeatedly drop the grill lid on the stove from a certain height to see if the burner flame will be affected and potentially extinguish. Of course, the possibility of alteration or extinction of the flame will vary depending on the specific structure of a special grill equipment. Some of the most significant variables can be the size of the stove, its depth, the depth of the place where the burners are placed, the placement of the structure between the grill and the burner, and whether the burner has rows of single or multiple ports . Therefore, a burner tube device is needed which, with at least one stabilization structure, maintains and stabilizes the area of the flame to prevent the alteration and / or extinction of the flames. A burner device with a flame stabilization structure is also needed where the burner device is compact and capable of being used in a wide variety of cooking chambers. The present invention tends to solve said need and to improve the versatility of outdoor gas burner structures.

Summary of the Invention The present invention relates to a burner for use with a flame device for open air. One of the objects of the present invention is to provide a burner device for a barbecue grill in which the burner device includes at least one elongated burner tube area with a plurality of burner outlet ports along a linear adaptation that defines the area of the burner flames. The burner has at least one channel placed transversely to the linear adaptation of the burners in the area of the flames, which is adapted to provide a port as a pilot flame that is placed adjacent to at least one burner. This adaptation is to provide ignition in the area of the flame in case of at least partial extinction of the flame. It is also an object of the present invention to provide a burner with burner ports disposed along an upper wall of the burner and wherein said burner is positioned on the upper wall and extends at least to an adjacent wall. The invention further provides a burner device wherein the elongated burner is formed by a tube with a linear adaptation of burner ports along an extension and a flame stabilizer disposed at a location along the burner ports. The flame stabilizer has an extension that passes transversely to the linear device of the burner ports and provides a pilot to re-ignite an extinguished flame in the area of the burners.

Other features and advantages of the invention will become apparent from the following specifications indicated along with the following drawings.

Brief Description of the Drawings FIG. 1 is a perspective view of a barbecue grill equipment showing a tube of burners of the invention; FIG. 2 is a sketch view of the top portion of the burner tube of FIG. 1, where the burner tube has two linear flame stabilizing structures. FIG. 3 is a cross section of the burner tube taken along line 3-3 of FIG. 2, which shows the flame stabilizing structure. FIG. 4 is a partial cross section of the first tube of burners taken along line 4-4 of FIG. 2, which shows the flame stabilizing structure. FIG. 5 is a partial perspective view of a conventional burner tube having a cross ignition structure between two different rows of burner ports. FIG. 6 is a partial view of the sketch of the upper part of a tube of burners having a flame stabilizing structure formed by a plurality of openings.

FIG. 7 is a cross section of the burner tube taken along line 7-7 of FIG. 6, and FIG. 8 is a partial cross section of the burner tube, taken along line 8-8 of FIG. 7 Detailed Description of the Invention The present invention is susceptible to many forms of versions, but the preferred embodiments of the invention will be described in detail in the drawings and in this document, with the understanding that this disclosure should be considered as an exemplification of the principles of the invention and not limited to the broad aspect of it to the illustrated version. In the preferred form of the invention the burner is used in a barbecue grill equipment. However, in another form of the invention, the burner is used in an outdoor fire or heating equipment. FIG. 1 shows a barbecue grill equipment 10. The barbecue grill equipment 10 generally includes a cooking chamber 12 and a support frame 14. The support frame 14 is adapted to support the cooking chamber 12. The cooking chamber 12 includes a cover 16 that is connected to the firebox 18 by means of hinges. The barbecue grill equipment 10 further includes a first work surface 20 and a second work surface 22, each functionally connected to a transverse member 24 of the support frame 14. The fire chamber 18 has an interior geometry or configuration defined by a first wall 26, a second wall 27, a front wall 28, and a rear wall 29. As shown in FIG. shows in FIG. 1, the first and second walls 26, 27 are sloping or curved. There is an elongated burner tube 30 generally disposed within the fire chamber 18 of the cooking chamber 12. In the version shown, the burner tube 30 has a multi-directional configuration that is transformed into passages for fuel flow through of the burner tube 30. In this way, the burner tube 30 has a geometry similar to the geometry of the furnace 18 where the burner tube 30 is supported by the furnace 18. This version of the invention is then incorporated into the structure of a burner tube. barbecue grill that is disclosed in another pending application detail also belonging to the Assignee of the present invention, namely, US Pat. Serial Number 10 / 141,690 filed May 6, 2002. However, the present invention can be used in a variety of other types of grilling structures barbecues and other outdoor appliances with gas burner, despite the details which are shown in the grill version that is displayed here. According to a preferred version, the burner tube 30 is a cylindrical element with a circular cross section with inner wall diameter and outer wall diameter. Alternatively, the burner 30 may be constructed from other gradual pipe attenuations, or may be made from elongate burner adaptations of materials such as molten metal. The burner tube 30 is connected to a fuel source (not shown) to define a flow passage for the fuel. The burner tube 30 is generally positioned between the cooking grate 32 and the lower wall 33 of the furnace 18. A part of the burner tube 30 extends through an opening 34 in the side wall 26 of the furnace 18. A lighter 38 to ignite the fuel as it flows through the burner tube 30.

With reference to the version shown in FIG. 2, the burner tube 30 has a curvilinear geometric configuration with proximal segment 40, a distant curvilinear segment 42, and a terminal end 44. The burner tube 30 also has a first flame stabilizing structure 46 and a second flame stabilizing structure. 47, wherein each is adapted to stabilize the flame in the flame area of the burner being found along the linear adaptation of the burner ports 36. The proximal segment 40 is adapted to be connected to a fuel source, for example a tank made out of fuel. The distal segment 42 is passed and below the segment 40, which means that the fuel flows from the proximal segment 40 to the distal segment 42. Unlike conventional burner tubes, the terminal end 44 is connected or coupled to the burn tube. 30 in a junction zone or interface 48 of the proximal segment 40. Thus, the junction zone 48 is a junction zone between the terminal end 44 and the proximal segment 40. The connection between the terminal end 44 and the junction zone 48 forms a continuous burner tube or spiral burner 30 where the fuel flows through two distinct paths - through the distal segment 42 and the terminal end 44. This adaptation, as mentioned above, is disclosed in more detail in the application Patent Pending and Common Property (Serial Number 10 / 141,690). Although shown in a P-shaped or D-shaped configuration, the configuration and dimensions of the burner tube 30 may vary. For example, the burner tube 30 may have a round, square or elliptical configuration. Alternatively, the burner tube 30 can have a linear configuration with proximal and distant segments without a junction zone or interface. As shown in FIG. 1, the burner tube is placed inside the furnace 18 in such a way that a portion of the near segment 40 extends through an opening 34 in the second wall 27 of the furnace 18. There is an inlet port 52 and a Venturi element 54 of the next segment 40 placed past the fire chamber 18, and the inlet port 52 is connected to the fuel source. A control valve can be used to regulate the supply of fuel from the fuel source. Accordingly, the fuel from the fuel source passes the proximal segment 40 down to the distal segment 42 and the terminal end 44. The distal segment 42 has at least one curvilinear portion 56 that contributes to the generally spherical or nearly rectangular of the burner tube 30. As shown in FIG. 2, the distal segment 42 has three curvilinear portions 56. However, the precise number of such portions varies with the general configuration of the burner tube 30. Due to the engagement of the terminal end 44 with the proximal segment 40, the burner tube 30 defines a central enclosed area 58. Although shown in a generally rectangular configuration, the central zone 58 may have a round, square or elliptical configuration. The distal segment 42 includes a bracket 59 which in combination with an opening in the proximal wall 26 of the furnace 18; The burner tube 30 is held within the furnace 18. A ramp or shoulder (not shown) of the first wall 26 includes a fastener (not shown) that is placed together to fit the bracket 59. bracket 59 and opening 50 join to hold burner tube 30 in an elevated position relative to the bottom wall of firebox 18. Preferably, bracket 59 is welded to burner tube 30. Referring to FIG. 2, the burner tube 30 has a plurality of outlet ports or openings 36 from which the flame F extends (see FIG. The outlet ports 36 are arranged in a linear arrangement along an extension of the burner tube 30, such that the ports of the burners 36 provide a linear arrangement of flame zone. In the version shown, the outlet ports 36 are placed in an upper part of the burner tube 30, so that the flame that is produced is directed towards the grate 32. Preferably, the exit ports 36 are placed in the upper wall 70 of the burner tube 30 when viewed in a transverse manner (see FIG 3). Alternatively, the ports 36 are placed in a side portion of the burner tube 30. Preferably, the outlet ports 36 are positioned throughout the burner tube 30, including the joint area 48. During operation of the grill equipment 10 , the output ports 36 define a flame zone 60 of the burner tube 30. In the version of a burner with curvilinear configuration, the burner tube 30 may have several flame regions 60 separated - as shown in the version having a first flame zone 62 and a second flame zone 64. The flame zone 62, 64 represents a set of flames F emerging from individual ports 36 during the operation of the barbecue grill equipment 10 (see FIG. 4). The number of flame regions 62, 64 varies with the configuration of the burner tube 30, including the presence or absence of curvilinear portions 56. For example, a triangular burner tube 30 may have three flame regions. The output ports 36 are aligned in a generally linear fashion and define a first line of output ports 66 and a second line of output ports 68. The line of output ports 66, 68 represents a series of output ports 36 a through which the flames F exit during the operation of the barbecue grill equipment 10. Due to its curvilinear configuration, the burner tube 30 has multiple output ports. The preferred version shown in the drawings includes burner ports 36 arranged in a single line along a port line 66, 68. However, other substantial linear adaptations are contemplated, for example a set of ports can also be used burners 36 along a linear stretch to provide a substantially linear burner and flame zone. The first flame stabilizing structure 46 and the second flame stabilizing structure 47 have a generally rectangular or "channel" configuration of a width W and a length L. Preferably, the first flame stabilizing structure 46 and the second stabilizing structure of Flames 47 have the same configuration, but their configurations may vary if desired. With respect to FIG. 3, the stabilizing structure 46, 47 is preferably placed in an upper wall 70 of the burner tube 30. Described in another form, the stabilizing structure 46, 47 is positioned in an upper portion of the burner tube 30 between an interior wall 72 and an outer wall 74 of the burner tube 30. The length L of the stabilizing structure 46, 47 is smaller than the inner diameter ID of the burner tube 30, however, the length L varies with the design parameters of the burner tube 30. The depth of the stabilizing structure 46, 47 is determined by the thickness of the burner tube 30. According to one aspect of this invention, the stabilizing structure 46 is a channel (or slot) cut into the tube extending around the sides of the tube past the linear arrangement of the burner parts 36. As described above, when the ports 36 are positioned along the upper wall 70, the channel passes through of the inner and outer walls 72, 74 of the burner tube 30. In alternative versions where the ports 36 are disposed by the sides of the burner 30 the channel preferably passes to the adjacent areas of the tube 30, as to the area of the upper wall and the area of the lower wall. With respect to FIG. 4, the stabilizing structure 46, 47 is positioned between a pair of output ports 36. Preferably, the stabilizing structure 46, 47 cuts the distance between a pair of ports 36, but the stabilizing structure 46, 47 can be placed closer to one or from another of the adjacent ports 36. An edge 46a of the stabilizer structure 46 extends from the top wall 70 toward the interior wall 72 of the burner tube 30. When viewed together, FIGS. 2-4 show that each flame stabilizing structure 46, 47 is positioned transverse to the flame zone 62, 64 and the port line 66, 68. Preferably, the first stabilizing structure 46 is positioned substantially perpendicular to the first zone. substantially linear flame 62 which is defined by the first port line 66. Described in another way, the first flame stabilizing structure 46 is crossed with the first flame zone 62 and the first port line 66. Similarly, the second flame stabilizing structure 47 is positioned transversely to the second flame zone 64 and the second port line 68. Preferably, the second stabilizer structure 47 is positioned substantially perpendicular to the second flame zone 64 and the second line of ports 68. Described in another way, the second flame stabilizing structure 46 intersects with the second flame zone substantially nea) 64 which is defined by the second port line 68. The first flame stabilizing structure 46 is positioned past and below the joining zone 48, preferably between the proximal segment 40 and the distal segment 42. The second stabilizing structure of flames 47 is positioned past and under the first flame stabilizing structure 46, preferably between the distal segment 42 and the terminal end 44. The distance between the first flame stabilizing structure 46 and the second flame stabilizing structure 47 varies according to the design of the burner tube 30. Even when the burner 30 is shown with two flame stabilizing structures 46, 47, the burner 30 may have any number of flame stabilizing structures, including a single flame stabilizing structure. In case the burner tube 30 has a single flame stabilizing structure, that structure can be placed in a variety of places under the entrance of port 52. In case the burner tube 30 has three or more flame stabilizing structures, the structures can be placed throughout the burner tube 30 including the curvilinear portion 56. The dimensions of the flame stabilizer structure 46, 47 vary with the design parameters of the burner tube 30. In a preferred embodiment, the burner tube 30 is a round tube with an internal diameter of the range of 0.75 inch to 1 inch, and the flame stabilizer structure 46, 47 has a length L of 0.50 inch and a width W of 0.020 inch. In other forms of elongated burners 30 of specific types, such as round tubes or elongated burners of molten metal, the stabilizing structure 46 may comprise a groove or channel that intersects the line of ports of burners 36 and passes to the areas of the burners. burners 30 adjacent to the port line 36. For example, the use of the present invention with a burner having a row of ports 36 across the burner side would include a channel or slot that would extend at least from the top or bottom of the burner and would intersect with the line of ports 36. This adaptation is achieved regardless of the shape of the burner 30 in cross section, provided that the stabilizing structure 46 extends at least to some extent past the line of ports 36 and intersects with the port line. During the operation of the barbecue grill equipment 10 the fuel flows through the tube of the burners 30 and leaves the ports 36. Initially, the lighter 38 (see FIG.1) is used to ignite the fuel that has flowed through the tube of the burners 30 and has left the ports 36. Since a portion of the lighter 38 is located in the lower part of the firebox 18 nearby of the square 59, the combustion of the fuel occurs first in the ignition zone 80. However, the flow of fuel through the burner tube 30 and the exit of the fuel through the outlet ports 36 during the operation of the barbecue grill equipment 10 it forms the first flame zone 62 and the second flame zone 64. Specifically, the fuel leaving port 36 on the first port line 66 forms the first flame zone 62, and the fuel leaving port 36 in the second port line 68 forms the second flame zone 64. In addition, the fuel exiting the flame stabilizing structures 46, 47 is burned. As a result, the fuel exiting the first stabilizing structure 46 during operation of the barbecue grill equipment 10 forms a part of the first flame zone 62 and the fuel exiting the second stabilizer structure 47 forms a part of the second fire zone. flames 64. Due to the increased geometry of the stabilizer structure 46, 47, a larger amount of fuel leaves the stabilizer structure 46, 47 compared to the exit ports 36. Accordingly and as shown in FIG. 4, the flame F that is formed in the stabilizing structure 46, 47 is generally larger than the flame F that leaves one of the ports 36. Also, the flame F that is formed in the stabilizing structure 46 is located along of an area of the burner wall past the zone of the linear arrangement of the burner ports 36. During the operation of the barbecue grill equipment 10 and while roasting the food on the grill 32, the cover 16 is usually raised several times between a open position and a closed position. When the cover 16 is in the open position (see FIG.1), more wind or a gust of wind could enter the fire chamber 18. If a conventional burner tube is used in some grilling equipment, a gust of wind can affect the flames coming out of the burner tube. For example, a gust of wind may cause the burner tube flames to "blink" or decrease to some degree. In certain adaptations of grills, a significant gust of wind could potentially extinguish the flames of the burner tube causing an involuntary extinguishing of the flames. The involuntary extinguishing of the flames coming out of the burner tube can also be caused by mistreatment of the closure of the cover 16. Example of this is a test that is used in the barbecue grilling industry. The barbecue grills industry has developed a standard test that is used in some parts of the world to measure the susceptibility to extinction of the flames of the burners of a grill equipment. In this test, a canopy or deck is raised six feet above the stove and dropped five times, every thirty seconds each time. The flames that come out of the burner tube of the grill equipment are observed to see the signs of alteration, including flickering and suffocation, or extinction. Since the flame stabilizing structure 46, 47 of the present invention generally prevents severe alteration or extinction of the flames emerging from the burner tube 30, the burner tube 30 and the grill equipment 10 help this industrial test to be overcome . Therefore, while only certain configurations of barbecue grills may have problems caused by flame alterations, and consequently not overcome the industrial test, the present invention provides a solution for that situation. The flame stabilizing structure 46, 47 of this burner tube 30 helps to prevent the inadvertent extinguishing of flames F leaving the burner tube 30. Because the stabilizing structure 46, 47 has a configuration or geometry greater than the exit port 36, the flame F that is formed in the stabilizing structure 46, 47 is larger than the flame F that is formed in the exit port 36. Accordingly, the structure stabilizer 46, 47 is less susceptible to inadvertent extinction due to mistreatment conditions such as closing cover 16 at a stroke. Thus, it is very likely that the flame F will remain lit in the stabilizing structure 46, 47 in abusive conditions. Further, since the stabilizing structure 46, 47 includes a flame port having a linear extension transverse to the linear arrangement of burner ports, and extending to adjacent areas of the side wall of the burner, the stabilizing structure 46, 47 provides a flame stabilizing port that resists extinction due to mistreatment conditions. Due to the liquid characteristic of the fuel and the positioning of the flame stabilizing structure 46, 47 with respect to the flame area 62, 64, the flame stabilizing structure 46, 47 functions as a fixed pilot to re-ignite the flames F which extinguished, including those in the flame zone 62, 64. In this way, the flame stabilizing structure 46, 47 functions as a fixed pilot which resists inadvertent extinguishing and provides a re-ignition in the flame area 62, 64 F that have been extinguished and along the burner tube 30. The structure of the present invention is distinguished from conventional burner structures where a flame transfer from one line of gas ports to another similar line of ports is provided. In addition, the present invention should be understood to be distinct from conventional burner structures having such a cross ignition structure in an ignition port zone. As shown in FIG. 5, (showing a portion of an elongated burner of conventional structure), a conventional burner tube 130 has a first set of output ports 136 in a first side wall 132 of the tube 130 and a second set of output ports 162 in an opposite side wall 134. The first set of output ports 136 defines a first port line 164, while the second set of output ports 162 defines a second port line 166. The burner tube 130 has no structures in the upper wall 136. Instead, an ignition channel 170 is located in a lower wall 138 and generally between the first and second side walls 132, 134. The ignition channel 170 is crossed neither with the first nor with the second lines of port 164, 166. The conventional burner tube 130 has a first end attached to a fuel source and a second end closed or folded. The ignition channel 170 is usually positioned near the second end and a lighter. The function of the ignition channel 170 is to ignite the fuel flowing both through the first and second set of output ports 136, 162. Although not shown in FIG. 5, the ignition channel 170 is placed near a cigarette lighter when the burner tube 130 is installed in a cooking chamber. This means that the upper wall 136 of the burner tube 130 is directed towards the cooking grate of the hob and the lower wall 138 of the burner tube 130 is directed towards a lower wall of the hob. Usually the lighter is placed between the lower wall 138 of the burner tube 130 and the lower wall of the firebox, the ignition channel 170 then having to be placed towards the lower wall of the firebox and not towards the grill or cover. When the lighter is activated, the fuel flowing through the ignition channel 170 is turned on first. Since the flame coming out of the ignition channel 170 is directed upward, this is towards the side wall 132, 134 and the top wall 136, the fuel exiting the first and second set of ports 162, 164 turns on. In this manner, the ignition channel 170 provides a cross ignition for the port sets 162, 164. Unlike the linear burner tubes 130, the burner tube 30 of the present invention provides a flame stabilizing structure 46, 47 which it intersects with the line of burner ports and extends into the adjacent areas of the burner wall. Further, in an improved version, the present invention provides a flame stabilizing structure 46, 47 which is placed in the upper wall 70 of the burner tube 30 and the resulting flame is directed towards the cooking grate 32. In addition, the first structure flame stabilizer 46 intersects the first port line 66 and the second flame stabilizer structure 47 intersects the second port line 68. Unlike conventional burner tube 130, the first flame stabilizer structure is not required. 46 or the second flame stabilizing structure 47 are placed near a cigarette lighter. In another improved version shown in FIGS. 6-8, the burner tube 230 has a flame stabilizing structure 246 with a configuration different from that shown in FIGS. 1-4. The flame stabilizer structure 246 is placed in an upper wall 270 of the burner tube 230. The burner tube 230 has a plurality of outlet ports 236 arranged in a linear fashion along the upper wall 270 which defines a flame zone. 262 during operation of the burner tube 230. The flame stabilizing structure 246 is generally placed perpendicular to the flame zone 262. The exit ports 236 define a port line 266 and the flame stabilizing structure 246 is generally disposed perpendicular to the port line 266. Unlike the flame stabilizer structure 46 of FIGS. 1-4, the flame stabilizing structure 246 is formed by a plurality or set of openings 250. Although each opening 250 is shown in FIG. 6 with a smaller configuration than that of the outlet port 236, the configuration of the opening 250 can be changed with the design parameters of the burner tube 230. Similarly, the precise number of openings 250 that together form the stabilizing structure of flame 246 may vary from the five shown in FIG. 6. For example, the flame stabilizing structure 246 can be formed by three larger openings 250 which are spaced apart in the upper wall 270 and generally disposed transversely to the flame zone 262 and the port line 266.

While the specific versions have been illustrated and described herein, there are many modifications in mind that do not deviate significantly from the spirit of the invention, and the scope of protection thereof is only limited by the scope of the accompanying claims.

Claims (20)

1. An equipment with gas burner for barbecue grill, comprising: at least one area of elongated burner tube with a plurality of burner outlet ports along a linear arrangement defining a flame burner zone, at least one channel disposed transversely to the linear arrangement of burner ports in the flame zone and adapted to provide a fixed pilot pilot port adjacent to at least one burner port to provide ignition of the flame zone in the case of an at least partial extinction of the flame.

2. The burner kit of Claim 1, wherein the ports of the burners are arranged in a single line along the burner tube.

3. The burner equipment of Claim 1, wherein the ports of the burners are disposed along an upper wall of the burner, said channel disposed in the upper wall and extending to at least one adjacent wall.

4. The burner kit of Claim 1, wherein the elongated burner comprises a rounded tube.

5. The burner kit of Claim 4, wherein the burner tube is formed of an elongated curvilinear geometry.

6. The burner equipment of Claim 5, wherein the curvilinear geometry includes a first and second burner zone, a first channel arranged in the first burner zone and a second channel disposed in the second burner zone, each of the channels first and second, being adapted to provide a fixed pilot for the burner flame to prevent the extinguishing of the flame in the flame zone of the burners.

7. A gas burner equipment for use in an outdoor grill, comprising: at least one elongated burner zone with a plurality of outlet ports positioned substantially along at least one linear array to define a flame burner zone, at least one flame stabilizer port positioned along said linear array and having a port stabilizing aperture adapted to provide a fixed pilot adjacent to at least one burner outlet port so that the pilot provide the ignition of an extinguished flame in said burner zone.

8. The burner equipment of Claim 7, wherein the burner outlet ports are disposed on at least one line along an extension of the elongated burner zone.

9. The burner equipment of Claim 7, wherein at least a portion of the burner outlet ports are positioned along an upper wall of the burner, including the flame stabilizing port a channel with a linear extension passing in shape transversal to the linear arrangement of output ports.

The burner kit of Claim 9, wherein the linear extension of said channel passes from the top wall into an adjacent wall of the burner.

11. The burner equipment of Claim 7, wherein the flame stabilizing port includes a linear port stabilizing aperture arrangement, said linear arrangement being transverse to the linear arrangement of the burner outlet ports.

12. The burner kit of Claim 11, wherein the linear arrangement of the port stabilization opening includes a set of openings.

13. The burner equipment of Claim 11, wherein the linear arrangement of the port stabilization opening includes a channel passing transverse to the outlet ports of the burners.

14. The burner equipment of Claim 13, wherein the channel passes substantially perpendicular to the linear arrangements of the burner outlet ports.

15. A gas burner equipment, comprising: a burner zone with fluid communication with a burner fuel source having a substantially linear length of burner outlet ports to define the flame zone of the burners, at least one flame stabilizer located along said linear section, said stabilizer adapted to provide a fixed pilot flame to ignite the ports of the burner in the event of flame extinction in the flame zone of the burner.

16. The burner kit of Claim 15, wherein at least a portion of the burner outlet ports are positioned along an upper burner wall, the flame stabilizer includes a channel having a linear extension that passes transversely to the linear arrangement of the output ports.

17. The burner equipment of Claim 16 wherein the linear extension of said channel passes from the upper wall into an adjacent wall of the burner.

The burner equipment of Claim 15, wherein the flame stabilizer includes a linear port stabilization opening arrangement, said linear arrangement placed transverse to the linear arrangement of the burner outlet ports.

19. The burner equipment of Claim 18, wherein the linear arrangement of the port stabilization opening includes a set of openings. The burner equipment of Claim 18, wherein the linear arrangement of the port stabilizing aperture includes a channel passing transverse to the outlet ports of the burners.