WO2023217726A1

WO2023217726A1 - Distribution part for gas burner

Info

Publication number: WO2023217726A1
Application number: PCT/EP2023/062182
Authority: WO
Inventors: Emilio Placer Maruri; Luis Acosta Herrero; Alberto Lopez Ortiz; Melca Gutierrez Humara; Cristina RUEDA SANUDO
Original assignee: BSH Hausgeräte GmbH
Priority date: 2022-05-09
Filing date: 2023-05-09
Publication date: 2023-11-16

Abstract

The invention relates to a distribution part (13) for a gas burner (2, 3, 4, 5) for a gas stove (1), the distribution part (13) having at least an outer wall (21), a bottom wall (22) and a separation wall (23), which together define a distribution chamber (24), wherein the outer wall (21) is penetrated with a plurality of outlet ports (25) associated with an outer crown (31), the separation wall (23) fluidically separates the distribution chamber (24) from a space (34) within the separation wall (23) associated with an inner crown (41), and the bottom wall (22) is penetrated with a distribution inlet (30) into the distribution chamber (24), and wherein said distribution inlet (30) is at least one elongated passage (32) following a shape of said outer wall (21). The invention also relates to a gas burner (2, 3, 4, 5) for a gas stove (1) comprising said distribution part (13)

Description

Distribution part for gas burner

The present invention relates to a distribution part for a gas burner for a gas stove. The distribution part has at least an outer wall, a bottom wall and a separation wall, which together define a distribution chamber, wherein the outer wall is penetrated with a plurality of outlet ports associated with an outer crown, the separation wall fluidically separates the distribution chamber from a space within the separation wall associated with an inner crown, and the bottom wall is penetrated with a distribution inlet into the distribution chamber.

Further, the present invention relates to a gas burner for a gas stove having this distribution part.

There are gas burners, especially for gas stoves, which have an inner crown and an outer crown. The two crowns usually differ in length. Outlet ports are usually more or less equally spaced. The two crowns thus usually differ in the number of outlet ports. For achieving homogenous flame sizes over the entire gas burner, the crowns are usually supplied with a burning gas mixture from separate respective nozzles via separate ducts and chambers.

The problem arises that the flames within one of the crowns may differ in size. This especially happens if the burner is not circular, e.g. a star-shaped burner, a rectangular burner or the like.

It is one object of the present invention to provide a gas burner or a part for a gas burner with improved flame distribution.

Accordingly, a distribution part for a gas burner for a gas stove is provided. The distribution part has at least an outer wall, a bottom wall and a separation wall, which together define a distribution chamber, wherein the outer wall is penetrated with a plurality of outlet ports associated with an outer crown, the separation wall fluidically separates the distribution chamber from a space within the separation wall associated with an inner crown, and the bottom wall is penetrated with a distribution inlet into the distribution chamber, wherein said distribution inlet is at least one elongated passage following a shape of said outer wall. In a usual distribution part, an inlet passage is located close to the center of the distribution part and/or close to the separation wall. A gas or gas mixture flowing into the distribution chamber then distributes - more or less unequally - on its way from the center to the outer wall.

Contrary thereto, in the distribution part according to the invention, the gas or gas mixture mainly distributes within the elongated passage or passages forming the distribution inlet. Since the at least one elongated passage follows the shape of the outer wall, respective flow paths from the distribution inlet to the outlet ports are mainly vertically oriented. In other words, the differences in flow length due to different distances from a common distribution inlet are removed. Thus, volumetric flow rates are balanced between the outlet ports. This results in an improved flame distribution.

The term “outlet ports associated with an outer crown” especially relates to outlet ports that are arranged such that flames of a gas or gas mixture flowing from those outlet ports form an outer line of flames of two (or more) lines of flames.

The term “a space associated with an inner crown” especially relates to a space within which another distribution chamber and/or distribution part or the like is arranged or arrangeable such that flames flowing therefrom form an inner line of flames of the two (or more) lines of flames.

Terms relating to gravity, such as “upper”, “top”, “lower”, “below”, “bottom” or the like refer to a preferred usage and/or orientation of the distribution part in a gas stove, where a cooking gear, such as a pan, is preferably locatable above the distribution part.

According to an embodiment, said at least one elongated passage follows the shape of the outer wall where at least a plurality of said outlet ports are located. Respective flow paths of this embodiment are especially short. This may reduce flow losses.

According to a further embodiment, said outer wall has a polygonal shape, especially a star shape. A polygonally shaped outer wall is distinguishable from a circular outer wall. The term “polygonal shape” especially refers to a plan view towards an upper side or top side of the bottom wall. Polygonally shaped outer walls may be adapted to non-circular cooking gear, like a type of casserole. Polygonally shaped outer walls may widen or thicken a band of flames leading to a homogenized cooking within a respective cooking gear. Polygonally shaped outer walls may widen or thicken a band of flames leading to a higher energy output.

According to a further embodiment, said at least one elongated passage follows at least 75% of a length of an inner side of the outer wall where the plurality of said outlet ports are located. It may not always be possible to follow the complete section or sections of the outer wall where the outlet ports are located. Such situations may include narrow corners and/or other design space limitations. However, for an improved flame characteristic it is usually beneficial if the elongated passage follows as much as possible of the section or sections of the outer wall where the outlet ports are located.

According to a further embodiment, a distance between an outer side of said elongated passage and the inner side of the outer wall is not longer than a cross width of the elongated passage and/or a thickness of the outer wall and/or a thickness of said bottom wall. For example, said distance may be measured in a bottom wall top surface plane from an edge of the outer side of the elongated passage to an edge of the inner side of the outer wall. This embodiment provides for a short distance between the elongated passage and the outer wall. This short distance may reduce flow losses between the elongated passage and the outlet ports. The lower these losses are, the lower are differences between respective flow paths, thus balancing respective flames.

According to a further embodiment, a width and/or a depth of said elongated passage is greater than the distance between an outer side of said elongated passage and the inner side of the outer wall and/or a thickness of the outer wall and/or a thickness of the bottom wall. This embodiment provides for a short distance between the elongated passage and the outer wall. If the depth of the elongated passage is not greater the thickness of the bottom wall, the elongated passage may at least partially be formed as a trench. If the depth of the elongated passage is greater the thickness of the bottom wall, the elongated passage may at least partially be formed as a duct, especially to another chamber. This width and/or depth may reduce flow losses within the distribution inlet. The lower these losses are, the lower are differences between respective flow paths along the elongated passage, thus balancing respective flames.

According to a further embodiment, the outer side of the elongated passage is flush with a joint between the outer wall and the bottom wall and/or with the inner side of the outer wall. This embodiment provides for especially short and smooth respective flow paths from the distribution inlet to the outlet ports. The joint may be a transition between the outer wall and the bottom wall. The joint may be a chamfer and/or a rounding. This embodiment supports balancing the flames.

According to a further embodiment, the elongated passage is oriented parallel to and/or inclined towards the inner side of the outer wall. Thus, a flow of gas or gas mixture from the distribution inlet may be directed towards respective outlet ports. Thus, flow loss differences are further reduced.

According to a further embodiment, the outlet ports reach down from a top side of the outer wall down to or below a half of an inner side height of the outer wall. In other words, the outlet ports reach down from a top side of the outer wall at least 50% of a distance and/or vertical difference from the top side of the outer wall to a top side of the bottom wall. This embodiment eases a flow of gas or gas mixture into the outlet ports. Said inner side height may be measured along the inner side of the outer wall from a bottom wall top surface plane to an outer wall top surface plane and/or a top wall bottom surface plane of a top wall of the distribution part.

According to a further embodiment, bottom surfaces of the outlet ports are inclined with their lower edge at the inner side and their upper edge at the outer side of the outer wall. Thus, flow loss differences amongst the outlet ports may be further reduced.

According to a further embodiment, a respective outlet axis of one of the outlet ports is rotated from a thickness direction of the respective section of the outer wall towards or to a radial direction of the distribution part. According to a further embodiment, respective outlet axes of a plurality of outlet ports are rotated from a thickness direction of the respective section of the outer wall towards or to a radial direction of the distribution part. According to a further embodiment, respective outlet axes of each outlet port are rotated from a thickness direction of the respective section of the outer wall towards or to a radial direction of the distribution part. The thickness direction of the outer wall might vary locally. The thickness direction of the outer wall might be the direction of a shortest distance from a specific point along the inner side or the outer side of the outer wall to the outer side or the inner side of the outer wall. The radial direction of the distribution part might be a direction from a center of the distribution part to a specific point along the inner side or the outer side of the outer wall. The center of the distribution part may and will usually be within the space within the separation wall. The outlet axis of an outlet port may be a line centered between sides of the outlet port. These three embodiments are especially combinable. These three embodiments have in common that an outlet axis is oriented at least roughly towards a center of the distribution part. This results in a further reduction of flow loss differences between the outlet ports. However, these embodiments do not necessarily require an outlet axis or every outlet axis to coincide with a radial direction. Further, an outlet axis might at the same time be oriented in a thickness direction and a radial direction. In other words, these embodiments are especially beneficial in a section of the outer wall, which is not circumferentially oriented. Terms like “thickness”, “radial” and/or “circumferential” may be considered in a plan view towards a top surface of the bottom wall.

According to a further embodiment, a mixing chamber is located below the bottom wall of the distribution chamber. The mixing chamber might provide for a more homogenously mixed gas mixture. In this embodiment, the bottom wall of the distribution chamber may optionally separate the distribution chamber and the mixing chamber, and/or the inlet passage into the distribution chamber may optionally fluidically connect the distribution chamber and the mixing chamber. That is, the mixing chamber might supply a gas or gas mixture to the distribution inlet. As a further option, the distribution chamber and the mixing chamber may be formed integrally. Preferably, the outer wall of the distribution chamber, an outer wall of the mixing chamber, a bottom wall of the mixing chamber, an inner wall of the mixing chamber and the separation wall of the distribution chamber may be formed integrally, thus providing a stiff distribution part.

According to a further embodiment, the bottom wall of the distribution chamber is an insert part formed separately. Preferred variants of this embodiment include a sheet metal part or a cast part. According to a preferred variant of this embodiment, a depth of the elongated passage measures at least 75%, preferably 125%, of the thickness of the nearest outlet wall. Thus, a gas burner, especially a gas burner with low flow loss differences, can easily be mounted.

According to a further embodiment, the bottom wall of the distribution chamber is formed integrally with the outer wall and the separation wall. Thus, fewer parts are to be mounted together.

According to a further embodiment, the separation wall is suited for at least partially encircling another distribution part associated with an inner crown, the other distribution part being locatable in the space within the separation wall. Thus, the distribution part may be part of a modular gas burner system.

According to a further embodiment, the distribution part further has an inner bottom wall and an inner wall, wherein the distribution chamber is an outer distribution chamber that at least partially encircles an inner distribution chamber, which is defined by the separation wall, the inner bottom wall and the inner wall. That is, the distribution part may comprise at least two nested distribution chambers. Each of the distribution chambers might be dedicated to a crown. In this embodiment, the inner bottom wall might be penetrated with a respective distribution inlet into the inner distribution chamber. Thus, a supply to both distribution chambers might be set up parallel. Further, in this embodiment, the inner wall might be penetrated with a plurality of outlet ports associated with an inner crown. Thus, similar structures for the inner crown might provide for similar flames. Preferably, the separating wall fluidically separates the outer distribution chamber from the inner distribution chamber. Thus, gas flows into the distribution chambers are independently adjustable.

As another solution to the above object, a gas burner for a gas stove is presented. Said gas burner has a distribution part according to an embodiment of this description.

Terms like “distribution chamber” and “mixing chamber” are chosen to be easily distinguishable. However, they are usually not exclusive in a way that there was no mixing of gas in the distribution chamber or that there was no distributing of gas in the mixing chamber.

Further possible implementations or alternative solutions of the invention also encompass combinations - that are not explicitly mentioned herein - of features described above or below with regard to the embodiments. The person skilled in the art may also add individual or isolated aspects and features to the most basic form of the invention.

Further embodiments, features and advantages of the present invention will become apparent from the subsequent description and dependent claims, taken in conjunction with the accompanying drawings, in which:

Fig. 1 shows a schematic top view of an embodiment of a gas stove; Fig. 2 shows a perspective exploded sectional view of an embodiment of a gas burner for the gas stove according to Fig. 1;

Fig. 3 shows a perspective view of an embodiment of the distribution part of the gas burner according to Fig. 2; and

Fig. 4 shows in another perspective view the distribution part of Fig. 3.

In the Figures, like reference numerals designate like or functionally equivalent elements, unless otherwise indicated.

Fig. 1 shows a schematic top view of an embodiment of a gas hob or gas stove 1 . The gas stove 1 can be a household appliance or part of a household appliance. The gas stove 1 comprises a plurality of gas burners 2 to 5. The number of gas burners 2 to 5 is arbitrary. As Fig. 1 shows, there can be provided four gas burners 2 to 5. The gas burners 2 to 5 protrude over a top sheet 6 of the gas stove 1. The top sheet 6 can be a glass or glass ceramic plate. However, the top sheet 6 can also be a steel sheet.

The gas stove 1 has a plurality of knobs 7 to 10. Each knob 7 to 10 belongs to a gas valve (not shown). The number of knobs 7 to 10 is the same as the number of gas burners 2 to 5. Each knob 7 to 10 is assigned to one gas burner 2 to 5. By means of the knobs 7 to 10, a stream of combustion gas from a main gas pipe to the assigned gas burner 2 to 5 can be controlled continuously or stepwise.

Further, the gas stove 1 is optionally provided with a (not shown) pan support structure for carrying a weight of cooking gear eventually placed above a respective gas burner 2 to 5.

Turning to Figs. 2 to 4, the following description refers to gas burner 2 only. However, the description and features given may apply mutatis mutandis to each gas burner 2 to 5.

The gas burner 2 has for example a holder assembly 11 , a burner base 12, a distribution part 13 and a cap 14.

The holder assembly 11 comprises for example two nozzle-venturi-arrangements 15. Each nozzle-venturi-arrangement 15 comprises a (not shown) gas nozzle connected to a (not shown) gas pipe from the (not shown) gas valve, which corresponds to knob 7. Both gas nozzles are arranged to eject a burner gas into a respective venturi pipe 16a and 16b. Each venturi pipe 16a, 16b is connected to a respective port of a common holder part 17 in a gas-tight manner.

Inside the holder part 17 are formed two ducts 18a and 18b in this case.

In this embodiment, the burner base 12 is a separate part comprising two mixing chambers 19a and 19b. Each mixing chamber 19a and 19b has a respective mixing inlet 20a and 20b.

The holder part 17 and the burner base 12 are formed such that the burner base 12 fits onto the holder part 17 preferably such that a gas-tight fluid communication is formed between each one of the ducts 18a, 18b and one respective mixing inlet 20 of the mixing inlets 20a, 20b.

The distribution part 13 is arranged and preferably fitted in a gas-tight manner on top of the burner base 12 in this embodiment. The distribution part 13 may be referred to as a spreader or spreading part.

The distribution part 13 has an outer wall 21 , an outer bottom wall 22 and a separation wall 23. The outer wall 21 , the outer bottom wall 22, and the separation wall 23 encompass and together define an outer distribution chamber 24. The outer distribution chamber 24 is further encompassed and closed by a section of the cap 14.

Within the outer wall 21 are arranged a plurality of outer outlet ports 25. For example, these outer outlet ports 25 are formed as notches or slits. The notches extend down from a top side 26 or upper surface of the outer wall 21 towards a top side 27 or upper surface of the bottom wall 22.

Fig. 3 shows that the outer outlet ports 25 reach down about 50% of the distance from said top side 26 of the outer wall 21 to said top side 27 of the bottom wall 22 on an outer side 28 or upper surface of the outer wall 21. Further, the outer outlet ports 25 reach down more than 75% of the distance from said top side 26 of the outer wall 21 to said top side 27 of the bottom wall 22 on an inner side 29 or surface of the outer wall 21. Thus, a bottom surface 42 of each outlet port is inclined upwards from an inside of the outer distribution chamber 24 to an outside thereof. Turning to Fig. 4, the outer wall 21 has a polygonal shape when seen in a plan view towards the top side 27 of the outer bottom wall 22. In the exemplary case of the first embodiment, the outer wall 21 has the shape of a star having five arms.

Further there is provided an outer distribution inlet 30 in the outer bottom wall 22. The outer distribution inlet 30 connects the corresponding mixing chamber 19a with the outer distribution chamber 24.

In operation, a gas ejected from the corresponding nozzle mixes with air and passes - in this order - through the venturi pipe 16a, the duct 18a, the mixing inlet 20a, the mixing chamber 19a, the outer distribution inlet 30, the outer distribution chamber 24, and the outer outlet ports 25, all of which fluidly communicate with each other. Then, in operation, the gas mixture is burned outside the outer outlet ports 25 forming an outer crown 31.

The outer distribution inlet 30 has the form of an elongated passage 32. In the exemplary case of the first embodiment, the distribution inlet 30 is a single elongated passage 32. However, there are variants provided with multiple elongated passages 32 forming the outer distribution inlet 30.

In the exemplary case of the first embodiment, the elongated passage 32 reaches through the outer bottom wall 22 all along its length. However, there are variation where the elongated passage 32 is formed as or comprises at least one trench or trench section.

The elongated passage 32 has an outer side 33 or surface. In the exemplary case of the first embodiment, the outer side 33 of the elongated passage 32 is flush with the inner side 29 of the outer wall 21 along almost all the length of the elongated passage 32 with the exception of two terminal ends 46 thereof. That is, the elongated passage 32 too has a star shape having five arms when seen in said plan view towards the top side 27 of the outer bottom wall 22.

Since the elongated passage 32 repeats in a locally parallel manner the shape of the outer wall 21 radially within the inner side 29 of the outer wall 21 , the elongates passage 32 follows the shape of the outer wall 21. Thus, in operation, a stream of gas mixture from the outer distribution inlet 30 towards the outer outlet ports 25 is not horizontal but at least mainly vertical. In other words, the outer outlet ports 25 are vertically flown against and/or are vertically filled from the elongated passage 32. When comparing a flow behavior over all outer outlet ports 25, this vertical flow results in a well-balanced filling of the outer outlet ports 25. That is, in the end, an improved flame characteristic is achieved by the elongated passage 32 following the shape of the outer wall 21.

As the inner side 29 of the outer wall 21 the outer side 33 of the elongated passage 32 are parallel to each other, a gas mixture flow from the elongated passage 32 upwards along the outer wall 21 is generated in operation. This effect supports said vertical filling of the outer outlet ports 25.

The separation wall 23 is a solid wall that fluidly separates the outer distribution chamber 24 from a space 34 or compartment encompassed by the separation wall 23.

In the case of the first embodiment, the distribution part 13 also has an inner bottom wall 35 and an inner wall 36. The separation wall 23, the inner bottom wall 35, and the inner wall 36 encompass and together define an inner distribution chamber 37. The inner distribution chamber 37 is also encompassed and closed by a section of the cap 14.

In other words, in the exemplary case of the first embodiment, the space 34 is at least partially occupied or used by the inner distribution chamber 37.

The inner distribution chamber 37 has an inner distribution inlet 38 formed by two through holes 39. The through holes 39 reach through the inner bottom wall 36.

Outlet ports from the inner distribution chamber 37 are formed by a plurality of inner outlet ports 40 provided in the inner wall 36. The inner outlet ports 40 too are formed as notches.

In operation, a gas ejected from the corresponding nozzle mixes with air and passes - in this order - through the other venturi pipe 16b, the other duct 18b, the other mixing inlet 20b, the other mixing chamber 19b, the inner distribution inlet 38, the inner distribution chamber 37, and the inner outlet ports 40, all of which fluidly communicate with each other. Then, in operation, the gas mixture is burned outside the inner outlet ports 40 forming an inner crown 41.

Fig. 4 shows an exemplary outlet axis 43 of one of the outer outlet ports 25, as well as a thickness direction 44 of this section of the outer wall 21 and a radial direction 45 of the same section of the outer wall 21. As can be seen from Fig. 4, the outlet axis 43 is located between the thickness direction 44 and the radial direction 45. Thus, a flow of gas or gas mixture is more balanced amongst the plurality of outer outlet ports 25.

The above embodiment reflects a preferred embodiment depicted in the Figs. 1 to 4. However, there are other embodiment not depicted in the Figures.

For example, the inner distribution chamber 37 is not necessarily a part of the distribution part 13. That is, the space 34 might also be used and/or usable by a component formed separate from the distribution part 13.

For example, the holder part 17, the burner base 12 and the distribution part 13 must not be provided as three separately formed parts. In an alternative embodiment, the holder part 17 and the burner base 1 are integrally formed. In another alternative embodiment, the burner base 12 and the distribution part 13 are integrally formed. In another alternative embodiment, the holder part 17, the burner base 12 and the distribution part 13 are integrally formed. Especially in embodiments where the burner base 12 and the distribution part 13 are integrally formed, at least one of the bottom walls 22, 35 might be separately formed and inserted afterwards.

For example, a “part” or the like may be an arrangement of separate or separately formed sections, parts and/or arrangements.

Although the present invention has been described in accordance with preferred embodiments, it is obvious for the person skilled in the art that modifications are possible in all embodiments.

Reference Numerals:

1 Gas stove

2 Gas burner

3 Gas burner

4 Gas burner

5 Gas burner

6 Top sheet

7 Knob 8 Knob

9 Knob

10 Knob

11 Holder assembly

12 Burner base

13 Distribution part

14 Cap

15 Nozzle-venturi-arrangement

16a Venturi pipe

16b Venturi pipe

17 Holder part

18a Duct

18b Duct

19a Mixing chamber

19b Mixing chamber

20a Mixing inlet

20b Mixing inlet

21 Outer wall

22 Outer bottom wall

23 Separation wall

24 Outer distribution chamber

25 Outer outlet ports

26 Top side

27 Top side

28 Outer side

29 Inner side

30 Outer distribution inlet

31 Outer crown

32 Elongated passage

33 Outer side

34 Space

35 Inner bottom wall

36 Inner wall

37 Inner distribution chamber

38 Inner distribution inlet

39 Through hole 40 Inner outlet ports

41 Inner crown

42 Bottom surface

43 Outlet axis

44 Thickness direction 45 Radial direction

46 Terminal end

Claims

1. Distribution part (13) for a gas burner (2, 3, 4, 5) for a gas stove (1), the distribution part (13) having at least an outer wall (21), a bottom wall (22) and a separation wall (23), which together define a distribution chamber (24), wherein the outer wall (21) is penetrated with a plurality of outlet ports (25) associated with an outer crown (31), the separation wall (23) fluidically separates the distribution chamber (24) from a space (34) within the separation wall (23) associated with an inner crown (41), and the bottom wall (22) is penetrated with a distribution inlet (30) into the distribution chamber (24), characterized in that said distribution inlet (30) is at least one elongated passage (32) following a shape of said outer wall (21).

2. Distribution part (13) according to claim 1 , wherein said at least one elongated passage (32) follows the shape of the outer wall (21) where at least a plurality of said outlet ports (25) are located.

3. Distribution part (13) according to claim 1 or 2, wherein said outer wall (21) has a polygonal shape, especially a star shape.

4. Distribution part (13) according to one of claims 1 - 3, wherein said at least one elongated passage (32) follows at least 75% of a length of an inner side (29) of the outer wall (21) where the plurality of said outlet ports (25) are located.

5. Distribution part (13) according to one of claims 1 to 4, wherein a distance between an outer side (33) of said elongated passage (32) and the inner side (29) of the outer wall (21) is not longer than a cross width of the elongated passage (32) and/or a thickness of the outer wall (21) and/or a thickness of said bottom wall (22).

6. Distribution part (13) according to one of claims 1 to 5, wherein the outer side (33) of the elongated passage (32) is flush with a joint between the outer wall (21) and the bottom wall (22) and/or with the inner side (29) of the outer wall (21).

7. Distribution part (13) according to one of claims 1 to 6, wherein the elongated passage (32) is oriented parallel to and/or inclined towards the inner side (29) of the outer wall (21).

8. Distribution part (13) according to one of claims 1 to 7, wherein the outlet ports (25) reach down from a top side (26) of the outer wall (21) at least 50% of a distance from the top side (26) of the outer wall (21) to a top side (27) of the bottom wall (22).

9. Distribution part (13) according to one of claims 1 to 8, wherein bottom surfaces (42) of the outlet ports (25) are inclined with their lower edge at the inner side (29) and their upper edge at an outer side (28) of the outer wall (21).

10. Distribution part (13) according to one of claims 1 to 9, wherein

- a respective outlet axis (43) of one of the outlet ports (25), and/or

- respective outlet axes (43) of a plurality of outlet ports (25), and/or

- respective outlet axes (43) of each outlet port (25) is or are rotated from a thickness direction (44) of the respective section of the outer wall (21) towards or to a radial direction (45) of the distribution part (13).

11. Distribution part (13) according to one of claims 1 to 10, wherein a mixing chamber (19a, 19b) is located below the bottom wall (22) of the distribution chamber (24), wherein the bottom wall (22) of the distribution chamber (24) separates the distribution chamber (24) and the mixing chamber (19a, 19b), and wherein the distribution inlet (30) into the distribution chamber (24) fluidically connects the distribution chamber (24) and the mixing chamber (19a).

12. Distribution part (13) according to claim 11 , wherein the distribution chamber (24) and the mixing chamber (19a) are formed integrally.

13. Distribution part (13) according to one of claims 1 to 12 wherein the bottom wall (22) of the distribution chamber (24) is an insert part formed separately.

14. Distribution part (13) according to one of claims 1 to 12 wherein the bottom wall (22) of the distribution chamber (24) is formed integrally with the outer wall (21) and the separation wall (23).

15. Distribution part (13) according to one of claims 1 to 14 further having an inner bottom wall (35) and an inner wall (36), wherein the distribution chamber (24) is an outer distribution chamber (24) that at least partially encircles an inner distribution chamber (37), which is defined by the separation wall (23), the inner bottom wall (35) and the inner wall (36), the inner bottom wall (36) is penetrated with a respective distribution inlet (38) into the inner distribution chamber (37), and the inner wall (36) is penetrated with a plurality of outlet ports (40) associated with said inner crown (41).

16. A gas burner (2, 3, 4, 5) for a gas stove (1) having a distribution part (13) according to one of claims 1 to 15.