EP2473784B1 - Gas-burner arrangement and gas cooking point - Google Patents

Description

The present invention relates to a gas burner device, for example for use with cooking utensils for cooking food. Furthermore, the invention relates to a gas hob with a gas burner device. Such a gas burner device and gas hob are off EP1469256 A2 known.

Common gas burners in kitchen gas hobs usually have a simple rim with gas outlet openings which form a ring of gas flames. In order to achieve a homogeneous temperature distribution on the bottom of the pot in the case of particularly large pots, gas burners have been developed which form flame rings arranged concentrically with one another. However, it has been shown that in the case of corresponding multiple burners with several concentric flame rings, the efficiency is generally lower than in the case of single burners, ie burners which have only one flame ring in operation. While typically the efficiency of simple burners is between 55% and 60%, conventional double flame burners achieve only 50% to 52% efficiency. For determining the efficiency of gas cooking appliances, the standard EN30 has become standard. Causes for the lower efficiency are not fully understood analytically, since the efficiency is determined by a rather complex interaction of the combustion processes, the fluid or aerodynamics and the thermodynamic heat transfer between exhaust gases, pot carrier pot and contents of the pot.

Despite the generally lower efficiency, it is desired, on the one hand to achieve a better temperature homogeneity over a large area, on the other to achieve a greater ratio between maximum and minimum power to use multiple burners. It is therefore an object of the present invention to provide an improved gas burner apparatus having a plurality of flame crowns.

This object is achieved by a gas burner device having the features of patent claim 1.

Accordingly, a gas burner device is provided with at least one inner ring and one outer ring around a reference point. Here are on Circumferential portions of the rings provided Gasausströmöffnungen for a given Ausströmrate the respective peripheral portion. The peripheral sections are assigned to angular ranges around the reference point. The discharge rates of adjacent peripheral portions of each ring are different.

Furthermore, the outflow rates of the same angular range associated peripheral portions of the rings can be set differently.

Thus, in the case of a corresponding gas burner device, an inner and an outer ring with gas outflow openings arranged on the respective circumferential line are provided, which are set up for predetermined outflow rates. In this case, the outflow rate is related to a respective total gas outlet in a circumferential section, for example also by means of a plurality of gas outflow openings.

A Gasausströmrate is measured in volume flow per time, for example in liters of gas per hour. The outflow rate then corresponds directly to a burning power, which depends among other things on the gas used. For example, 100 l of natural gas per hour equals approximately 1050 watts of burning power.

Conventionally, in conventional multi-burner devices, the gas outlets of an inner ring or flame ring are designed such that the burner capacity in the inner region is possible as high as in the dimensions given by the physical physics, e.g. for a 6kW burner, preferably 1kW in the inner region as e.g. only 500W. Investigations by the Applicant have shown, however, that under certain circumstances it is favorable to keep the burner output in the inner region lower than possible from a physical point of view, eg. rather 500W than 1000W in the example just mentioned.

According to investigations and analyzes by the applicant, the exhaust gases of the combustion process in the inner flame ring disturb the flames of the outer flame ring. It can be assumed that the exhaust gases of the inner flame ring form an insulating layer between the cookware and the outer flame ring, which ultimately leads to a lower efficiency. In addition, the exhaust gas flow of the internal combustion process also disturbs the outer flames.

In the proposed gas burner device, by means of the configuration of the gas outflow openings, larger and smaller flames or peripheral sections are formed with a higher and lower combustion output related to the respective peripheral section and consequently different exhaust gas outlets.

Characterized in that on the one hand different Ausströmraten and thus flame sizes along a circumferential line of the inner and outer ring arise, and that also, for example, starting from the inner reference point to the outside, flame portions are formed, which are smaller viewed from the inside compared to the outer flames and therefore a lower Performance results in the overall better heat transfer from exhaust gases to cookware and improved combustion of the gases. In particular, fewer disturbances on the outer flame rings are achieved by the different outflow rates and thus flame sizes. Furthermore, there is a better outflow of the exhaust gases of the inner flame ring and thus a low insulation between the outer flames and the respective cookware bottom.

The gas outflow openings can be arranged, for example, in such a way that there are alternating circumferential sections with a high outflow rate and a low outflow rate on a respective circumferential line. It then results in sections of larger and smaller flames along the circumference, such as the inner and outer ring.

Furthermore, the gas outflow openings can be arranged or configured in such a way that at circumferential sections, which are assigned to the same angular area, radially adjacent circumferential sections alternately have a high outflow rate and a low outflow rate. It is therefore conceivable that both in the tangential direction along the respective flame crown, as well as in the radial direction, starting from the inner, for example, concentric reference point, always a sequence of larger and smaller flames arise.

In a variant of the gas burner device, the gas outflow openings are designed exclusively pointing radially from the reference point in the same direction. Along a radius, the flames only burn outward. Flames pointing inwards are not intended.

In one embodiment of the gas burner device, a circular disk is provided as an inner ring, and the outer ring is arranged concentrically with the circular disk. However, other geometries are conceivable, such as oval or angular arrangements for the rings and / or Gasausströmöffnungen. It can be discussed in each case on the requirements, for example, by the cookware or the installation conditions for the gas burner devices.

Optionally, the gas burner device can be equipped with retaining flame or support flame outlet openings. In order to obtain a stable flame even with a particularly high gas flow through the outflow openings, smaller holding or support flame openings can be provided between two gas outflow openings. This also improves the burning behavior of the gas.

It is possible, for adjusting the respective outflow rate, to provide the gas outflow openings with a first cross section, for example for large flames or large outflow rates, and gas outflow openings with a second (smaller) cross section, for example for small flames or low outflow rates.

In a further variant of the gas burner device, the gas inflow to the outflow openings is set such that the outflow rates of the circumferential sections of the inner ring along a circumferential line alternately correspond to a first combustion output and a second combustion output, and the outflow rates of the peripheral sections of the outer ring alternate along a circumferential line correspond to another first burning power and another second burning power. Relative to the inner ring, for example, circumferential sections with alternately high (first) and low (second) combustion powers result, the high and low burning power relative to each other being related to the inner ring. Similarly, peripheral portions having alternately high (first) and low (second) burning powers are provided along the peripheral line of the outer ring. It is possible that a peripheral portion of the outer ring, in comparison to the adjacent peripheral portions of the outer ring has a low burning power, compared to the same angular portion associated with the peripheral portion of the inner ring has a higher burning power. And in turn, the adjacent peripheral portions of the adjacent angular regions in the inner ring have a further low burning power. Relative indications of how high or low are related to the rings.

In a further variant, the firing powers of the circumferential sections, which are assigned to the same angular range, are then set such that in each case a first (high) burning power of the respective inner circumferential section is radially adjacent to an outer peripheral section with a further second (low) burning power. The adjacent peripheral portions of the inner ring then have a second (high) burning power, and each of the same angular range associated outer peripheral portions have a further first (high) burning power. Again, high and low burn rates are related to peripheral portions of the respective ring.

The angle ranges comprise in a preferred embodiment of the gas burner device at least 30 °. In an alternative embodiment, the angular ranges are all the same size. Preferably, the angular distance between two gas outlets of a circumferential line is set at least 6 °. For setting the respective outflow rate for the peripheral portions on a common circumferential line, adjacent peripheral portions on the same circumferential line may have different numbers of gas outlets.

In a development of the gas burner device, at least one further outer ring with peripheral sections and gas outlet openings is provided. It can thus be formed, for example, three or four flame rings to heat a particularly large pot surface.

It is possible to further provide the gas burner device with a control device which controls a gas supply to the gas outflow ports such that the burner outputs from adjacent peripheral portions of a respective ring are different, and the burner performance of the same angular range associated peripheral portions of the rings are different.

In a particularly preferred embodiment of the gas burner device exclusively two concentric flame rings or rings are provided which have outwardly facing Gasausströmöffnungen and as described above have alternating sections with different outflow rates. In particular, only two different stages of outflow rates relative to the peripheral sections and rings are provided. Overall, the entire burning power and thus gas supply to the gas burner device can be changed depending on the operating state of the burner. The previous information on different outflow rates relate to the outflow rates of the peripheral sections relative to one another at a given combustion output of the total gas burner.

Further possible implementations of the invention also include not explicitly mentioned combinations of features or method steps described above or below with regard to the exemplary embodiments. The skilled person will also add individual aspects as improvements or additions to the respective basic form of the invention. In particular, the invention comprises a gas hob or gas stove equipped with a gas burner device as described above.

Further advantageous embodiments and aspects of the invention are the subject of the dependent claims and the embodiments of the invention described below. Furthermore, the invention will be explained in more detail by means of preferred embodiments with reference to the attached figures.

• Fig. 1: eine schematische Darstellung einer ersten Ausführungsform einer Gasbrennereinrichtung in der Draufsicht;
• Fig. 2: eine schematische perspektivische Darstellung der ersten Ausführungsform einer Gasbrennereinrichtung;
• Fig. 3: eine schematische Querschnittsansicht der ersten Ausführungsform einer Gasbrennereinrichtung;
• Fig. 4: eine schematische Detailansicht von Gasausströmöffnungen und Halteflammenöffnungen;
• Fig. 5: eine schematische Darstellung einer Ausführungsform einer Gaskochstelle; und
• Fig. 6-8: schematische Darstellungen von weiteren Ausführungsformen einer Gasbrennereinrichtung in der Draufsicht.

It shows:

• Fig. 1 a schematic representation of a first embodiment of a gas burner device in plan view;
• Fig. 2 a schematic perspective view of the first embodiment of a gas burner device;
• Fig. 3 FIG. 2 is a schematic cross-sectional view of the first embodiment of a gas burner device; FIG.
• Fig. 4 a schematic detail view of Gasausströmöffnungen and holding flame openings;
• Fig. 5 a schematic representation of an embodiment of a gas hob; and
• Fig. 6-8 : schematic representations of further embodiments of a gas burner device in plan view.

In the figures, identical or functionally identical elements have been given the same reference numerals, unless stated otherwise.

FIG. 1 shows a schematic representation of a first embodiment of a gas burner device in plan view. In the FIG. 1 the operation of a gas burner or a gas burner device 1 is shown, that is, it is illustrated from the respective gas outlet openings burning gas flames. It is a first flame ring formed by an inner ring 2, which is designed as a circular disk. The center of this circular disc forms a reference point R. In the case of irregular ring shapes, for example oval or angular, the position of the reference point can in principle be chosen arbitrarily. Concentrically around the inner disk or the inner ring 2, an outer ring 3 is arranged.

Starting from the central reference point R, dotted lines are indicated, which are in the plane of FIG. 1 Define segments or sectors. These sectors, also referred to as angular or angular sections, each comprise a predetermined angle, of which three are provided with reference numerals α ₇ , α ₈ , α ₉ . In the example of FIG. 1 are the angular ranges α ₇ = α ₈ = α ₉ = 30 °. Due to the angular ranges, are at the outer edges of the inner disc 2 and the outer edge of the outer ring 3, predetermined circumferential sections, of which three inner 7, 8, 9 and outer 4, 5, 6 are provided with reference numerals. The peripheral portions 7, 8, 9 and not provided with reference numerals Circumferential portions of the inner ring and circular surface 2 form a circumferential line L1 or the circumference of the inner ring 2. Similarly, the peripheral portions 4, 5, 6, and the other non-designated peripheral portions, a circumferential line L2 of the outer ring 3 from.

Along the inner circumferential line L1 and the outer circumferential line L2 now Gasausströmöffnungen 10, 11 are provided, from which burn out during operation of the gas burner 1 flames 110, 111. In the following, the angle sections α ₇ , α ₈ , α _{9 are} considered for a simpler explanation. As a result, the peripheral portions 7, 8, 9 are formed on the inner peripheral line L1, and the circumferential portions 6, 4, and 5 on the outer peripheral line L2. For ease of explanation, it is assumed below that gas outflow openings 11 for large flames 111 and gas outflow openings 10 for smaller flames 110 are provided. The respective outflow rate and thus the determination of the flame size and local combustion output can be adjusted, for example, by the size or the cross section of the respective outflow opening 10, 11. It is also conceivable to control and regulate the actual gas supply for the individual gas outflow openings 10, 11 or groups of gas outflow openings, as described below.

In the angular range α ₇ , the inner peripheral portion 7 has a gas discharge port for a small flame 110. In the same angle section α ₇ , the peripheral portion 6 has gas outflow openings 11 for large flames 111. In the adjacent angle area α ₈ , large flame gas outlets 111 are provided at the inner peripheral portion 8. In the same angular range α ₈ at the outer peripheral portion 4 Gasausströmöffnungen 10 are provided for small flames 110. In the angular range α ₉ for the inner peripheral portion 9 and the outer peripheral portion 5 outer openings are again provided for large flames 111 and inside an opening for a small flame 110. Thus, there is an alternating sequence of peripheral portions along a respective circumferential line L1, L2, the Gasausströmöffnungen 11 for large flames, so have a high outflow and gas outlets 10 for small flames 110, so a lower Ausströmrate. Adjacent peripheral sections thus always have different gas outflow rates. Furthermore, due to the arrangement of the different gas outflow openings, respectively adjacent peripheral sections which are assigned to the same angular range, also alternating high outflow rates and low outflow rates. For example, in the angular range α ₈ , the large flames 111 emerging from the inner peripheral portion 8 are surrounded by smaller flames 110 of the outer peripheral portion 4. Due to the two angle-adjacent peripheral sections 6 and 5, groups of small flames 110 are surrounded by large flames 111. This alternating arrangement of large and small flames along the circumferential lines L1, L2 and radially from inside to outside, results in a particularly favorable combustion behavior.

There are therefore inner peripheral portions 8 with a high burning power, which are surrounded by inner peripheral portions 7, 9 with a lower burning power. Accordingly, there are outer peripheral portions 5, 6 of high burning power, each adjacent to adjacent outer peripheral portions 4 of low burning power. Low or high burning power is to be understood relative to peripheral portions of a ring.

For example, the outer ring 3 can perform 5kW at full firing, which is distributed over a total of 48 Gasausströmöffnungen 10, 11. Due to the size of the openings 10, 11, the burner output of the outer ring 3 is distributed over the different outflow rates of the circumferential sections 4, 5, 6. At the same time, with full firing, the inner ring can have a burner output of 700W distributed over 18 gas outlets 10, 11. A possible ratio of total internal burning power and external burning power at low position, ie minimal fire, is for example 1300W outside and 300W inside. Usually, the outflow openings 10, 11 in their outflow rate or burning power between minimum and maximum in the range 1: 4 to 1: 5 modulate.

The FIG. 2 schematically shows a perspective view of the gas burner device 1. In this case, the inner ring 2 and the outer ring 3 is shown. The Gasausströmöffnungen are formed by cuts in an inner rim 12 and an outer rim 13 on which the inner and outer ring 2, 3 rests. You can use the FIG. 2 recognize that the gas burner device is constructed symmetrically with respect to a central axis A. The inner wreath points, as in the FIG. 1 is shown in plan view, peripheral portions with first Gasausströmöffnungen 11, which lead to a higher Ausströmrate than the Gasausströmöffnungen 10 in the intermediate peripheral portions. Accordingly, on the outer wreath 13 also circumferential sections provided with large gas outflow openings 11 and small gas outflow openings 10. The burner device 1 or the respective rim 12, 13 can be placed on a sleeve 14 through which the gas to be burned reaches the gas outflow openings 10, 11. It can be seen that the respective high or low outflow rate can be realized by the cross-sectional area of the respective gas outflow openings or holes 10, 11.

In the FIG. 3 is a schematic cross-sectional view of the gas burner device 1 is shown. One recognizes in the FIG. 3 , starting from the symmetry or center axis A, the inner ring 2 and the outer ring 3, which can be formed for example by a rotationally symmetrical profile with respect to the axis A. The inner rim 12 and the outer rim 13 are respectively on the sleeve 14. In the orientation of the FIG. 3 flows to be burned gas G to the openings 10, 11 from left to top right. The Gasausströmöffnungen 10, 11 are in the cross-sectional view of FIG. 3 designed such that in the considered peripheral portion, the inner flame 110 is smaller than the outer flame 111. The resulting from the combustion process exhaust E1 from the inner flame ring 110 flow at the bottom of the cookware 15, such as a pot, along radially outward. At the pot edge or outside the outer flame rim 111, the combustion products mix to the exhaust gas E2.

Due to the fact that the inner flame 110 has a lower burning power, only a small amount of exhaust gases E1 pass from the inside to the outside and interfere only slightly with the burning process of the outer larger flame 111. In addition, the relatively low proportion of combustion gases E1 is less insulating compared to the cookware 15 than conventional multi-flame burners, which usually operate the inner flame ring with the higher, and circumferentially evenly distributed power. At the presentation of the FIG. 3 adjacent peripheral portions, which in the FIG. 3 not shown, the respective inner flame is larger than the outer flame. That is, the outer small flame is less disturbed by the combustion products, so that an improved heat transfer can take place on the cookware. The alternating or alternating provision of large flame and small flame sections with high outflow rates and small outflow rates provides a reliable and highly efficient burner architecture.

In the FIG. 4 is a schematic detail view of Gasausströmöffnungen, shown for example on the inner or outer burner ring. It is possible to improve combustion at particularly high outflow rates by using holding flames. For this, as it is in the FIG. 4 is shown, normal Gasaüsströmöffnungen 11 and provided therebetween particularly small Gasausströmöffnungen 16, which serve to form holding or support flames provided. The support flames prevent the flame from tearing off the gas opening and extinguishing it.

FIG. 5 is a schematic representation of a gas hob 17, which is equipped with a gas burner device 1, as previously described. The gas hob 17 has a gas burner or a gas burner device 1, which has two concentric rings around the reference point R. The dashed lines indicate angle ranges α, wherein in the illustration FIG. 5 all angular ranges include a range of α = 60 degrees. The thus defined peripheral portions on the inner ring and the outer ring are provided with gas outlets, which are not shown in detail. The gas outflow openings are designed as described above in such a way that large and small flames, ie large or small outflow rates relative to the respective peripheral section, always arise alternately along a circumference. By way of example, an angular portion on the inner ring having a high outflow rate H and hence large flames 111 is shown and adjacent a small flame peripheral portion 110. Similarly, the adjacent outer peripheral portions associated with the respective same angular portions are small flue gas outlets 110 and large ones Flames 111 equipped.

In the FIG. 5 For example, the sectors or angular ranges at the peripheral portions are indicated by the symbols H for high or high outflow rates and L and low or small outflow rates. Clockwise, starting from the large flames on the inner ring 111, results in a sequence HLHLHL. Analogously, starting from the small flames 110 on the outer ring, a sequence LHLHLH results. In this case, H and L are not absolute, but, as in the following examples, in each case in comparison to outflow rates or firing rates for the same inner or outer Ring. The angle range indicated by α has radially outward to outward flow rate sequence LH, where L is low with respect to the adjacent outflow rates of the inner peripheral portions, and H is high with respect to the adjacent outflow rates of the outer peripheral portions. Thus, portions or portions having high and low outflow rates are always alternately provided along the circumferential lines, and along each radial direction, starting from the reference point R, there is provided either a sequence of HL or LH. Further, the cooking station is equipped with an operating element 18, for example a knob or knob, which controls a valve 21 or a regulating device which regulates the gas supply in such a way that a desired total burner output is achieved. The different (high or low) outflow rates in the angular ranges or peripheral portions are to be understood relative to each other.

In the FIG. 6 a further schematic representation of an embodiment for a gas burner device is shown. The same symbols have been used as with regard to FIG. 5 for the gas burner. The angle sections are in the example of FIG. 6 not regularly formed, but there are provided angle sections with α = 40 degrees and β = 20 degrees. Starting from the inner ring, this results in alternating circumferential sections with high outflow rates H and low outflow rates L. Other angle dimensions are also conceivable.

The FIG. 7 shows a further embodiment of a gas burner device 19. In the FIG. 7 three concentrically arranged rings 2, 3, 20 are provided along the peripheries Gasausströmöffnungen are provided. Angular ranges are provided with α = 45 degrees, which define peripheral portions along the circumferential lines of the inner ring, the middle ring and the outer ring 20. In turn, gas outflow openings for high outflow rates H and low outflow rates L are provided. In turn, due to the special configuration of the gas outflow openings, peripheral portions with high and low outflow rates occur alternately both along the circumferential lines and also radially. Radially, this results in sequences of large flames, small flames and large flames (HLH) or small flames, large flames and small flames (LHL).

It is also conceivable that in a respective segment or angular range exclusively a peripheral portion is provided with Gasausströmöffnungen for high outflow rates H. Then a maximum of one H-range would be provided, so LHL in the radial direction. Possible, for example, a sequence outside 20: HLLHLLHLLHLL, middle 3: LHLLHLLHLLHL and inside 2: LLHLLHLLHLLH.

In the FIG. 8 is a further embodiment of a gas burner device 1 is shown. Again, 45 degree angle ranges are provided and two rings, an inner ring and an outer ring. In addition to the sections with high and low outflow rates, further outflow rates M1 and M2 are provided. In this case, for example, L can indicate the lowest outflow rate, M1 the second lowest, M2 the second highest and H the highest outflow rate of the respective gas outflow openings. Also in the example of FIG. 8 each result in different Gasausströmraten at adjacent peripheral portions along the circumferential lines and radially from the inner ring.

Due to the special design and arrangement of Gasausströmöffnungen, in particular in an alternating form with respect to the Ausströmraten, particularly favorable efficiencies of the gas burner device result. Due to the fact that in each case different outflow rates and thus different sized flames arise at the different peripheral sections, the combustion processes of the inner and outer rings interfere less than with conventional multi-flame burners.

Used reference signs:

1

Gas fire

2

inner ring

3

outer ring

4-9

peripheral portion

10, 11

gas outflow

12, 13

wreath

14

shell

15

Cookware

16

Holding flame orifice

17

Gas Cooking

18

operating element

19

Gas fire

20

another outer ring

21

control device

110, 111

gas flame

A

axis

E1, E2

exhaust

CT

control signal

G

gas supply

R

reference point

H

Peripheral section with high outflow rate

L

Peripheral section with low outflow rate

L1, L2

peripheral line

M1, M2

Circumferential section with medium outflow rate

α, β

angle range

Claims (15)

1. Gas burner facility (1) having an inner ring (2) and an outer ring (3) around a reference point (R), wherein gas outflow openings (10, 11) are provided on circumferential segments (4-9) of the rings (2, 3), which are assigned to angle regions (α₇-α₉) around the reference point (R), for a predefined outflow rate of the respective circumferential segment (4-9), with the outflow rates of adjacent circumferential segments (4, 5) of a respective ring (2, 3) being different.
2. Gas burner facility (1) according to claim 1, characterised in that the gas outflow openings (10, 11) are disposed in such a manner that circumferential segments with a high outflow rate (H) and a low outflow rate (L) alternate on a respective circumferential line (L2, L3).
3. Gas burner facility (1) according to claim 1 or 2, characterised in that the gas outflow openings (10, 11) are disposed in such a manner that with circumferential segments (4, 8) assigned to the same angle region (α₈), circumferential segments (4, 8) adjacent to one another in a radial direction have an alternating high outflow rate (H) and low outflow rate (L).
4. Gas burner facility (1) according to one of claims 1-3, characterised in that the gas outflow openings (10, 11) only face radially from the reference point (R) in the same orientation.
5. Gas burner facility (1) according to one of claims 1-4, characterised in that the gas burner facility (1) has a circular disk (2) as the inner ring and the outer ring (3) is disposed concentrically to the circular disk (2).
6. Gas burner facility (1) according to one of claims 1-5, characterised in that auxiliary flame or backup flame output openings (16) are provided at least between two gas outflow openings (11).
7. Gas burner facility (1) according to one of claims 1-6, characterised in that, to set the respective outflow rate in the circumferential segments (4-9), gas outflow openings (10) are provided with a first cross section and gas outflow openings (11) are provided with a second cross section.
8. Gas burner facility (1) according to one of claims 1-7, characterised in that at least one of the rings (2, 3) is configured as polygonal, oval or circular.
9. Gas burner facility (1) according to one of claims 1-8, characterised in that a gas flow is set so that the outflow rates of the circumferential segments of the inner ring (2) along a circumferential line (L1) correspond in an alternating manner to a first burn performance (H) and a second burn performance (L) and the outflow rates of the circumferential segments of the outer ring (3) along a circumferential line (L2) correspond in an alternating manner to a first burn performance (H) and a second burn performance (L).
10. Gas burner facility (1) according to one of claims 1-9, characterised in that the angle regions (α₇-α₉) comprise at least 30 degrees.
11. Gas burner facility (1) according to one of claims 1-10, characterised in that, to set the outflow rates of the circumferential segments (4-9), adjacent circumferential segments present on a common circumferential line (L1, L2) have different numbers of gas outflow openings (10, 11).
12. Gas burner facility (19) according to one of claims 1-11, characterised in that at least one further outer ring (20) is provided with circumferential segments and gas outflow openings.
13. Gas burner facility (1) according to one of claims 1-12, characterised in that at least one angular distance of 6 degrees is provided between two gas outflow openings (10, 11) on a circumferential line (L1, L2).
14. Gas burner facility (1) according to one of claims 1-13, also having a regulating facility (21), which controls a gas supply to the gas outflow openings (10, 11) in such a manner that the burner outputs of adjacent circumferential segments (4, 5) of a respective ring are different and the burner outputs of circumferential segments (4, 8) of the rings assigned to the same angle region (α₈) are different.
15. Gas cooking point (17) having at least one gas burner facility (1) according to one of claims 1 - 14 and an operating element (18) for a gas valve (21) to set an overall burner output for a gas supply to the gas outflow openings (10, 11).

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