EP3679299A1

EP3679299A1 - Gas burner arrangement and household cooking appliance

Info

Publication number: EP3679299A1
Application number: EP18772890.2A
Authority: EP
Inventors: Luis Acosta Herrero; Melca Gutierrez Humara; Alberto Lopez Ortiz; Luis Antonio Palacios Valdueza; Emilio Placer Maruri
Original assignee: BSH Hausgeraete GmbH
Current assignee: BSH Hausgeraete GmbH
Priority date: 2017-09-05
Filing date: 2018-08-24
Publication date: 2020-07-15
Anticipated expiration: 2038-08-24
Also published as: US11655976B2; WO2019048971A1; ES2702785A1; US20200182457A1; EP3679299B1

Abstract

The invention relates to a gas burner arrangement (11) for a household cooking appliance (1), comprising a gas burner (2) and a heating plate (3) on which the gas burner (2) is mounted, the gas burner (2) comprising a first mixing chamber (39) for mixing fuel gas (B) with primary air (P), a second mixing chamber (42) separate from the first mixing chamber (39), for mixing fuel gas (B) with primary air (P), at least one first primary air opening (27, 28) for supplying the primary air (P) to the first mixing chamber (39), and at least one second primary air opening (45) for supplying the primary air (P) to the second mixing chamber (42), the at least one first primary air opening (27, 28) being arranged below the heating plate (3) and the at least one second primary air opening (45) above the heating plate (3).

Description

Gas burner arrangement and household cooker

The present invention relates to a gas burner assembly for a Haushaltsgargerät and a Haushaltsgargerät with such a gas burner assembly.

Gas burners for Haushaltsgargeräte usually include a burner base, in which a mixing chamber may be provided, a nozzle holder having a gas nozzle for injecting fuel gas into the mixing chamber, and a burner cap placed on the burner cover, which may have mixture outlet openings. When injecting the

Fuel gas into the mixing chamber is laterally between the gas nozzle and a

Inlet edge of the mixing chamber sucked in primary air and mixed with the fuel gas. The fuel gas / primary air mixture thus formed is fed to a mixture distribution chamber provided between the burner lower part and the burner cover and distributed uniformly by the latter for flame formation onto the mixture outlet openings. The primary air is supplied to the mixing chamber mostly from below a hob plate at which the

Gas burner is mounted.

Against this background, an object of the present invention is to provide an improved gas burner assembly.

Accordingly, a gas burner assembly for a Haushaltsgargerät is proposed. The gas burner assembly includes a gas burner and a cooking plate on which the gas burner is mounted, the gas burner having a first mixing chamber for mixing fuel gas with primary air, a second mixing chamber separate from the first mixing chamber for mixing fuel gas with primary air, at least one first primary air opening for feeding the primary air to the first mixing chamber and at least a second

Primary air opening for supplying the primary air to the second mixing chamber, wherein the at least one first primary air opening below and the at least one second

Primary air opening is arranged above the hob plate.

Characterized in that the second primary air opening is arranged above and not below the hob plate, primary air can be sucked in from above the hob plate.

This can be prevented that in pressure surges in an interior of a

Haushaltsgargeräts with such a gas burner arrangement extinguishes the burner flame in minimum firing operation. Under the fact that the first mixing chamber is separated from the second mixing chamber, it is to be understood that preferably no fluid communication between the first mixing chamber and the second mixing chamber is provided. However, the first mixing chamber and the second mixing chamber are arranged in particular in a common burner housing of the gas burner. The cooktop panel includes a front and a rear side facing away from the front. With respect to a direction of gravity, the front side is located above the rear side. The first primary air opening is adapted to suck the primary air from an interior of the household appliance. In contrast, the second primary air opening is adapted to suck the primary air not from the interior, but from an environment of the Haushaltsgargeräts. The hob plate can

For example, be a steel plate, in particular a steel sheet, a glass ceramic plate or a plate of tempered glass. The gas burner assembly may include a plurality of gas burners. The gas burner preferably comprises a first flame circuit, to which the first mixing chamber is assigned, and a second flame circuit, to which the second mixing chamber is assigned. The gas burner can therefore also be referred to as a dual-circuit gas burner.

According to one embodiment, the first mixing chamber and the second mixing chamber extend through the cooking field plate.

The cooktop panel may have a breakthrough through which the gas burner

passed through. The gas burner is in particular attached to the opening.

According to a further embodiment, the gas burner comprises a nozzle holder and a burner lower part, wherein the hob plate between the nozzle holder and the

Burner base is arranged.

For example, the hob plate between the nozzle holder and the burner base is clamped. The nozzle holder may for example be screwed to the burner base. The nozzle holder is in particular below the hob plate and the

Burner base is located above the hob plate.

According to a further embodiment, the first mixing chamber and the second

Mixing chamber provided in the burner lower part. The burner base is formed in particular materialeinstückig. The burner lower part can be, for example, an aluminum die-cast component or a magnesium die-cast component. The burner lower part comprises a disc-shaped base section, from which extends a first conical or cylindrical wall assigned to the first mixing chamber and a second conical or cylindrical wall assigned to the second mixing chamber. The first mixing chamber is provided in particular centrally on the burner lower part. The second mixing chamber may be positioned off-center. In particular, the first mixing chamber is constructed rotationally symmetrical to an axis of symmetry of the gas burner.

According to a further embodiment, a first gas nozzle for injecting the fuel gas into the first mixing chamber and a second gas nozzle for injecting the fuel gas into the second mixing chamber are received in the nozzle holder. The first gas nozzle and the second gas nozzle are associated with the nozzle holder.

For example, the gas nozzles are screwed into the nozzle holder. For this purpose, corresponding holes can be provided in the nozzle holder, with the aid of the gas nozzles and the fuel gas can be supplied. According to a further embodiment, the first gas nozzle is spaced from one

Inflow edge of the first mixing chamber and the second gas nozzle is spaced from an inflow edge of the second mixing chamber.

That is, the first gas nozzle is outside the first mixing chamber and the second gas nozzle is disposed outside the second mixing chamber.

According to a further embodiment, the nozzle holder comprises a pot-shaped nozzle receiving portion, in which the second gas nozzle is accommodated. The term "pot-shaped" is to be understood in the present case that the nozzle receiving portion has a bottom and a wall encircling the bottom wall is closed, that is, the wall has no openings or bores An upper edge of the wall may be part of a bearing surface of the nozzle holder With the support surface, the nozzle holder abuts against the back surface of the cooktop panel, and in the bottom of the nozzle receiving portion, there may be provided a bore into which the second gas nozzle is screwed. According to a further embodiment, the second mixing chamber is received at least in sections in the nozzle receiving portion. That is, the second mixing chamber projects into the nozzle receiving portion. A cavity enclosed by the nozzle receiving portion breaks through the support surface of the nozzle holder. The cavity is in fluid communication with the second primary air supply port above the aperture provided in the cooktop panel. According to a further embodiment, the at least one first primary air opening is passed through the nozzle holder.

Preferably, two first primary air openings are provided, which supply the first gas nozzle laterally the primary air. However, it may also be provided only a first primary air opening.

According to a further embodiment, the at least one second primary air opening is passed through the burner lower part. In particular, the second primary air opening may be as in a base portion of the

Burner lower part provided bore be executed. The number of second

Primary air openings is arbitrary. For example, five second primary air openings may be provided. According to a further embodiment, the gas burner comprises a first

A mixture distribution chamber, which is in fluid communication with the first mixing chamber, and a second mixture distribution chamber separated from the first mixture distribution chamber

Fluid connection with the second mixing chamber. By excluding the first mixture distribution chamber from the second mixture distribution chamber, it is to be understood that there is preferably no fluid communication between the first mixture distribution chamber and the second mixture distribution chamber. However, the Gemischverteilkammern can also communicate with each other by means of an optional passage provided in an intermediate element of the gas burner. According to a further embodiment, the gas burner comprises a burner cap and an intermediate element arranged between the burner cap and the burner base.

The burner cap and the intermediate element can also as

Die-cast aluminum component or designed as a magnesium die cast component. The

Nozzle holder, the burner base, the intermediate element and the burner cover form a burner housing of the gas burner. The nozzle holder, the burner base, the

Intermediate element and the burner cover are separate components. According to a further embodiment, the first mixture distribution chamber between the burner cap and the intermediate member and the second Gemischverteilkammer is disposed between the intermediate member and the burner lower part.

That is, the intermediate element spatially separates the first mixture distribution chamber and preferably also fluidically from the second mixture distribution chamber.

According to a further embodiment, the intermediate element comprises a plurality of first mixture outlet openings assigned to the first mixture distribution chamber and a second mixture outlet openings assigned to a plurality of the second mixture distribution chamber.

In particular, the first mixture distribution chamber is adapted to the fuel gas /

Uniformly distribute the primary air mixture on the first mixture outlet openings, and the second Gemischverteilkammer is adapted to evenly distribute the fuel gas / primary air mixture to the second mixture outlet openings. The

Mixture outlet openings are each uniformly around a circumference of the

Intermediate element arranged distributed. The number of the respective mixture outlet openings is arbitrary. The first mixture outlet openings may form a first flame circle of the gas burner, and the second mixture outlet openings may form a second flame circle of the gas burner.

Furthermore, a Haushaltsgargerät, in particular a gas stove, proposed with such a gas burner arrangement.

The household cooking appliance preferably has such a gas burner arrangement with a plurality of gas burners. Each gas burner can be a gas control valve or

Be assigned gas control valve. The gas control valve may be adapted to a Fuel gas volume flow to the first gas nozzle and / or to the second gas nozzle stepless or stepped to regulate. Depending on the position of a control knob of the

Gas control valve either fuel only the first gas nozzle, only the second gas nozzle or two gas nozzles are supplied simultaneously. The gas control valve may also be a so-called step valve.

The household cooking appliance can be a stand-alone appliance or a built-in appliance. Preferably, the household appliance is a household gas stove. For example, the household cooker may have four gas burners. The gas control valve is connected to a main gas line of the

Haushaltsgargeräts clamped and fluidly connected via two gas supply lines, namely one for the first gas nozzle and one for the second gas nozzle, with its associated gas burner. Furthermore, each gas burner can also be assigned an ignition device which can be integrated into the gas control valve and an ignition element, for example a spark plug, arranged directly on the gas burner. Furthermore, each gas burner can still have a thermocouple for flame monitoring. The

Thermocouple is electrically connected to the gas control valve of the respective gas burner.

Further possible implementations of the gas burner arrangement and / or the

Haushaltsgargeräts also include not explicitly mentioned combinations of previously or subsequently described with respect to the embodiments features or

Embodiments. The expert will also individual aspects as improvements or additions to the respective basic form of the gas burner assembly and / or the

Add home cooking appliance.

Further advantageous embodiments and aspects of the gas burner arrangement and / or the Haushaltsgargeräts are the subject of the dependent claims and the embodiments described below, the gas burner assembly and / or the

Haushaltsgargeräts. In addition, the gas burner arrangement and / or the

Haushaltsgargerät illustrated by preferred embodiments with reference to the accompanying figures.

Fig. 1 shows a schematic view of an embodiment of a Haushaltsgargeräts;

Fig. 2 shows a schematic exploded view of an embodiment of a gas burner for the Haushaltsgargerät according to FIG. 1; Fig. 3 shows a schematic sectional view of a gas burner arrangement with a

Gas burner according to Fig. 1; FIG. 4 shows a further schematic sectional view of the gas burner arrangement according to FIG.

3;

Fig. 5 is a schematic sectional exploded view of the gas burner assembly of Fig. 3;

Fig. 6 shows another schematic sectional exploded view of

Gas burner arrangement according to FIG. 3;

FIG. 7 shows a schematic perspective view of an embodiment of a nozzle holder for the gas burner according to FIG. 2; FIG. and

FIG. 8 shows a schematic sectional view of the nozzle holder according to FIG. 7. FIG.

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

Fig. 1 shows a schematic view of an embodiment of a Haushaltsgargeräts 1. The Haushaltsgargerät 1 is in particular a gas stove or household gas stove. The Haushaltsgargerät 1 may be a built-in device or a standalone unit. The household cooking appliance 1 comprises a plurality of gas burners 2. The gas burners 2 can also be referred to as domestic appliance gas burners. The number of gas burners 2 is arbitrary. For example, four gas burners 2 may be provided. The gas burners 2 are arranged on a common hob plate 3. For example, the gas burners 2 may be attached to the hob plate 3. The gas burners 2 may each have an annular circumferential heat protection, which is adapted to protect the hob plate 3 from heat input by the waste heat of the gas burner 2.

The hob plate 3 may be, for example, a steel sheet, a glass ceramic plate or a tempered glass plate. Each gas burner 2 is a gas control valve or

Gas control valve 4 associated with the aid of a respective gas burner 2, a supplied fuel gas flow optionally switched on, off and, in particular stepless, can be adjusted. Alternatively, the gas control valves 4 may also be adapted to control the gas combustion stream supplied to the respective gas burner 2 in a stepped manner. That is, the gas control valves 4 may be formed as stepped gas control valves or as so-called step valves. The Haushaltsgargerät 1 may further comprise a front provided door 5. The door 5 may be, for example, a oven door. The door 5 can be pivoted for opening and closing by a provided at a lower end of the door 5 pivot axis. Alternatively, the door 5 may be arranged on a withdrawable from the Haushaltsgargerät 1 baking cart. Fig. 2 shows a schematic exploded perspective view of an embodiment of a gas burner 2. The gas burner 2 comprises a nozzle holder 6, one on the

Nozzle holder 6 arranged burner base 7, one on the burner base 7th

Arranged intermediate element 8 and arranged on the intermediate element 8 burner cover 9. The burner lower part 7 is arranged between the nozzle holder 6 and the intermediate element 8, and the intermediate element 8 is between the

Burner base 7 and the burner cover 9 is arranged.

The nozzle holder 6, the burner base 7, the intermediate element 8 and the burner cover 9 are each made of an aluminum alloy or a magnesium alloy, for example. For example, the nozzle holder 6, the burner lower part 7, the

Intermediate element 8 and the burner cover 9 die-cast aluminum components or

Be magnesium die-cast components. The nozzle holder 6, the burner lower part 7, the

Intermediate element 8 and the burner cover 9 are separate components which together form a burner housing 10 of the gas burner 2.

3 and 4 each show a schematic sectional view of an embodiment of a gas burner arrangement 1 1 with such a gas burner 2. FIGS. 5 and 6 each show a schematic sectional exploded view of the gas burner arrangement 11. Reference will now be made to FIGS. 3 to 6 simultaneously taken.

The gas burner assembly 11 includes one or more gas burners 2 and the

Hob plate 3. The Hob plate 3 comprises a top or front 12 and a bottom or back 13. Viewed in a direction of gravity g, the back 13 is disposed below the front 12. The hob plate 3 comprises an opening 14 through which the gas burner 2 is passed. Each gas burner 2 may be assigned such a breakthrough 14. The aperture 14 may have a circular geometry respectively. However, the aperture 14 may also comprise any other geometry.

The nozzle holder 6 comprises, as shown in FIG. 7, a first support finger 15 and a second support finger 16. The support fingers 15, 16 are positioned at an angle to each other. The support fingers 15, 16 are part of a support surface 17 of the nozzle holder 6. With the support surface 17 of the nozzle holder 6 is located on the back 13 of the hob plate 3 at. The second support finger 16 may have a plurality of receiving portions 18 to 21, in which an ignition element or a thermocouple can be accommodated. Each gas burner 2 is associated with a thermocouple and an ignition element.

The nozzle holder 6 comprises a base body 22 (FIG. 8) in which a first gas nozzle 23 is accommodated. In the base body 22, a bore 24 is provided which

may be formed, for example, as a threaded bore. In the bore 24, the first gas nozzle 23 is screwed. The bore 24 is in fluid communication with a port 25 of the nozzle holder 6. At the terminal 25, a gas supply, not shown

be connected. Thus, the first gas nozzle 23 via the port 25 and the bore 24, a fuel gas can be supplied. In the base body 22, a receiving portion 26 is further provided, in which the

Burner base 7 is at least partially receivable. The receiving portion 26 may be formed rotationally symmetrical to a central or symmetry axis M of the gas burner 2. The first gas nozzle 23 is preferably also constructed rotationally symmetrical to the axis of symmetry M. The receiving portion 26 may have a cylindrical geometry. However, the receiving portion 26 may also extend starting from the first gas nozzle 23 in the direction of the support surface 17 conical. In the base body 22, two first primary air openings 27, 28 are further provided, with the aid of the first gas nozzle 23 primary air P can be fed. The nozzle holder 6 further comprises a rising above the support surface 17 and the receiving portion 26 circumferential flange 29. The flange 29 is preferably annular. The flange 29 may be at least partially in the

Breakthrough 14 of the hob plate 3 hineinerstrecken or through this

therethrough. The nozzle holder 6 further comprises a cup-shaped nozzle receiving portion 30 formed integrally with the base body 22. More specifically, the nozzle receiving portion 30 is formed integrally with the base body 22. In the nozzle receiving portion 30, a second gas nozzle 31 is accommodated. The fact that the nozzle receiving portion 30 is cup-shaped is to be understood to include a bottom 32 and a closed wall 33 encircling the bottom 32. Under the fact that the wall 33 is closed, it should be understood that this has no openings or holes.

In the direction of the support surface 17 or in the direction of the rear side 13 of the hob plate 3, the nozzle receiving portion 30 is open. The nozzle receiving portion 30 encloses a cavity 34 in which the gas nozzle 31 is received. The cavity 34 breaks through the support surface 17. That is, an upper edge 35 of the wall 33 is part of the support surface 17. At the bottom 32, a bore 36 is provided, which breaks through the bottom 32. In the bore 36, the second gas nozzle 31 is received. For example, the second gas nozzle 31 is screwed into the bore 36. At the bore 36, a gas supply, not shown, for supplying fuel gas to the second gas nozzle 31st

be connected.

Now returning to FIGS. 3 to 6, the burner base 6 comprises a

disc-shaped base portion 37, which may be constructed rotationally symmetrical to the axis of symmetry M, and a bottom side of the base portion 37th

extending flange 38. The flange 38 is adapted to abut the inside of the opening 14 of the hob plate 3. Centered on the base portion 37 and rotationally symmetrical to the axis of symmetry M, a first mixing chamber 39 is provided. The first mixing chamber 39 can taper conically starting from the first gas nozzle 23 in the direction of the burner cap 9. The first mixing chamber 39 includes a

rotationally symmetrical to the axis of symmetry M constructed and tubular wall 40 which is received in the receiving portion 26 of the nozzle holder 6. The first mixing chamber 39 furthermore has an inflow edge 41 provided on the wall 40.

Furthermore, a second mixing chamber 42 extends in the direction of the nozzle receiving section 30 of the nozzle holder 6 from the base section 37. The second mixing chamber 42 comprises a wall 43 and an inflow edge 44. The inflow edge 44 runs around the wall 43 in a ring shape. As FIGS. 3 and 4 show, the second mixing chamber 42 is accommodated at least in sections in the nozzle receiving section 30. This is the second Gas nozzle 31 is disposed outside of the second mixing chamber 42, and the first gas nozzle 23 is positioned outside of the first mixing chamber 39. More specifically, the first gas nozzle 23 is spaced from the inflow edge 41 of the first mixing chamber 39, and the second gas nozzle 31 is positioned at a distance from the inflow edge 44 of the second mixing chamber 42.

Also provided in the base portion 37 of the burner base 7 are a plurality of second primary air openings 45 in fluid communication with the cavity 34 of the nozzle receiving portion 30. Specifically, the second primary air openings 45 are in fluid communication with the cavity 34 of the nozzle receiving portion 30 via the aperture 14 of the cooking field plate 3. That is, primary air P (FIG. 3) can be supplied to the nozzle receiving portion 30 via the second primary air holes 45 and the aperture 14 of the cooking field plate 3 become. As shown in FIG. 2, five such second

Primary air openings 45 may be provided. However, the number of second primary air openings 45 is arbitrary. The second primary air openings 45, in contrast to the first primary air openings 27, 28 are not positioned below but above the cooking field plate 3.

On the upper side of the base portion 37, a flange 46 extends

is constructed rotationally symmetrical to the axis of symmetry M. Through the flange 46, the first mixing chamber 39 passes. The flange 46 has a stepped upper edge.

The intermediate element 8 is constructed rotationally symmetrical with respect to the axis of symmetry M and comprises a disc-shaped base section 47. An opening 48, which has a step corresponding to the flange 46, is provided centrally on the base section 47. In the opening 48, the flange 46 of the burner base 7 is received. In particular, the flange 46 is supported on the opening 48.

The intermediate element 8 comprises a plurality of channel-shaped first mixture outlet openings 49 on the upper side, that is to say facing the burner cover 9. The number of the first mixture outlet openings 49 is arbitrary. Preferably, the first

Mixture outlet openings 49 arranged distributed uniformly around a circumference of the intermediate element 8. The first mixture outlet openings 49 are part of a first

Flammenkreises 50 of the gas burner. 2 On the underside, that is to say assigned to the burner lower part 7, the intermediate element 8 comprises a multiplicity of second mixture outlet openings 51. The number of the second

Mixture outlet openings 51 is arbitrary. Preferably, the second

Mixture outlet openings 51 arranged distributed uniformly over a circumference of the intermediate element 8. The second mixture outlet openings 51 are part of a second flame circuit 52 (FIG. 5) of the gas burner 2.

Between the burner cap 9 and the intermediate element 8 is a first

Mixture distribution chamber 53 is provided, which are assigned to the first mixture outlet openings 49. Between the intermediate element 8 and the burner lower part 7, a second Gemischverteilkammer 54 is provided, which are associated with the second mixture outlet openings 51. The first Gemischverteilkammer 53 is not in fluid communication with the second Gemischverteilkammer 54. The mixture distribution chambers 53, 54 are separated by means of the intermediate element 8 from each other. However, the mixture distribution chambers 53, 54 may also be interconnected by means of an optional breakthrough 55 provided in the base portion 47. The first mixture distribution chamber 53 is in fluid communication with the first mixing chamber 39, and the second mixture distribution chamber 54 is in

Fluid communication with the second mixing chamber 42. The functionality of the gas burner assembly 11 and the gas burner 2 will be explained below with reference to FIG. 3. As previously explained, the gas burner 2 comprises a first flame circuit 50 and a second flame circuit 52. The first

Flame circuit 50 is associated, for example, a maximum combustion operation of the gas burner 2. The second flame circuit 52 may be for a minimum fire operation of

Gas burner 2 be suitable. In maximum firing mode, both can in particular

Flammenkreise 50, 52 are operated. In operation of the gas burner 2, the fuel gas B is supplied to the first gas nozzle 23 and the second gas nozzle 31. The supply of the fuel gas B takes place with the aid of the holes 24, 36 shown in FIG. 8. The fuel gas B flows out of the first gas nozzle 23 and into the first mixing chamber 39. In this case, the primary air P is sucked in laterally through the first primary air openings 27, 28 and flows through the inflow edge 41 of the first mixing chamber 39 in this one. By the outflowing fuel gas B, a Venturi effect is generated, which sucks the primary air P from below the hob plate 3 from an interior I of Haushaltsgargeräts 1. In the first mixing chamber 39, the fuel gas B is mixed with the primary air P to a fuel gas / primary air mixture and fed to the first Gemischverteilkammer 53. From the first mixture distribution chamber 53, the fuel gas / primary air mixture is uniformly distributed to the first mixture outlet openings 49 and flows out of these into an environment U of the gas burner assembly 11. With supply of secondary air burns the Primärluft- / fuel gas mixture to form a first burner flame.

Similarly, the fuel gas B flows out of the second gas nozzle 31 and into the second

Mixing chamber 42 into it. By the incoming fuel gas B primary air P is sucked in from above the cooking plate 3 through the second primary air openings 45 and the

Nozzle receiving portion 30 is supplied. The primary air P is then sucked in via the inflow edge 44 into the second mixing chamber 42, in which it mixes with the fuel gas B to the fuel gas / primary air mixture. From the second mixing chamber 42 is the

Fuel gas / primary air mixture supplied to the second Gemischverteilkammer 54 and distributed from there to the second mixture outlet openings 51. The fuel gas / primary air mixture then flows out of the gas burner 2 and burns on the environment U to form a second burner flame.

Characterized in that the second primary air openings 45, the primary air P from above the

Hob plate 3, that is from the environment U, suck and not like the first primary air openings 27, 28 from below the hob plate 3 and from the interior I of Haushaltsgargeräts 1, can be reliably prevented in particular in the minimum burning operation of the gas burner 2 that the gas burner 2, for example, due to pressure surges that can be caused by opening or closing the door 5, goes out.

Used reference signs:

1 household cooking appliance

2 gas burners

3 hob plate

4 gas control valve

5 door

6 nozzle holders

7 burner base

8 intermediate element

9 burner caps

10 burner housings

1 1 gas burner arrangement

12 front side

13 back side

14 breakthrough

15 support fingers

16 support fingers

17 bearing surface

18 receiving section

19 receiving section

20 receiving section

21 receiving section

22 base bodies

23 gas nozzle

24 hole

25 connection

26 receiving section

27 primary air opening

28 primary air opening

29 flange

30 nozzle receiving portion

31 gas nozzle

32 floor

33 wall

34 cavity 35 top edge

36 bore

37 basic section

38 flange

39 mixing chamber

40 wall

41 inflow edge

42 mixing chamber

43 wall

44 inflow edge

45 primary air opening

46 flange

47 basic section

48 breakthrough

49 mixture outlet opening

50 circle of flames

51 mixture outlet opening

52 circle of flames

53 mixture distribution chamber 54 mixture distribution chamber

55 breakthrough

B fuel gas

g Gravity direction I interior

M symmetry axis

P primary air

U environment

Claims

A gas burner assembly (11) for a Haushaltsgargerät (1), with a gas burner (2) and a cooking plate (3) on which the gas burner (2) is mounted, wherein the gas burner (2) a first mixing chamber (39) for mixing fuel gas (B) with primary air (P), a second mixing chamber (42) separate from the first mixing chamber (39) for mixing fuel gas (B) with primary air (P), at least one first primary air opening (27, 28) for feeding the fuel Primary air (P) to the first mixing chamber (39) and at least a second primary air opening (45) for supplying the primary air (P) to the second mixing chamber (42), wherein the at least one first primary air opening (27, 28) below and at least a second primary air opening (45) is arranged above the cooking field plate (3).

2. Gas burner assembly according to claim 1, characterized in that the first mixing chamber (39) and the second mixing chamber (42) through the hob plate (3) extend therethrough.

3. Gas burner arrangement according to claim 1 or 2, characterized in that the gas burner (2) comprises a nozzle holder (6) and a burner lower part (7), wherein the hob plate (3) between the nozzle holder (6) and the burner lower part (7) is.

4. Gas burner arrangement according to claim 3, characterized in that the first mixing chamber (39) and the second mixing chamber (42) in the burner lower part (7) are provided.

5. Gas burner assembly according to claim 3 or 4, characterized in that in the nozzle holder (6) has a first gas nozzle (23) for injecting the fuel gas (B) into the first mixing chamber (39) and a second gas nozzle (31) for injecting the fuel gas (B) are received in the second mixing chamber (42).

6. Gas burner arrangement according to claim 5, characterized in that the first

Gas nozzle (23) spaced from an inflow edge (41) of the first mixing chamber (39) and the second gas nozzle (31) spaced from an inflow edge (44) of the second

Mixing chamber (42) is arranged.

7. Gas burner assembly according to claim 6 or 7, characterized in that the nozzle holder (6) comprises a cup-shaped nozzle receiving portion (30) in which the second gas nozzle (31) is accommodated.

8. Gas burner arrangement according to claim 7, characterized in that the second mixing chamber (42) is at least partially accommodated in the nozzle receiving portion (30).

9. Gas burner arrangement according to one of claims 2-8, characterized in that the at least one first primary air opening (27, 28) through the nozzle holder (6)

passed through.

10. Gas burner arrangement according to one of claims 2 - 9, characterized in that the at least one second primary air opening (45) through the burner lower part (7)

passed through.

A gas burner assembly according to any of claims 2-10, characterized in that the gas burner (2) has a first mixture distribution chamber (53) in fluid communication with the first mixing chamber (39) and one separate from the first mixture distribution chamber (53) second mixture distribution chamber (54) in fluid communication with the second mixing chamber (42).

12. Gas burner arrangement according to claim 11, characterized in that the

Gas burner (2) comprises a burner cover (9) and between the burner cover (9) and the burner lower part (7) arranged intermediate element (8).

13. Gas burner assembly according to claim 12, characterized in that the first Gemischverteilkammer (53) between the burner cover (9) and the intermediate element (8) and the second Gemischverteilkammer (54) between the intermediate element (8) and the burner lower part (7) is arranged ,

14. Gas burner arrangement according to claim 12 or 13, characterized in that the intermediate element (8) comprises a plurality of the first Gemischverteilkammer (53) associated first mixture outlet openings (49) and a plurality of the second Gemischverteilkammer (54) associated second mixture outlet openings (51).

15. Haushaltsgargerät (1), in particular gas stove, with a gas burner arrangement (1 1) according to one of claims 1-14.