ES2737124A1 - PROVISION OF GAS VALVE AND GAS KITCHEN (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Provision of gas valve and gas cooker. A gas valve arrangement (4) for a gas cooker (1) is described, the gas valve arrangement (4) comprising a gas valve device (8) with a gas inlet (10) for receiving a gas stream (5), a gas outlet (11) for emitting a gas stream (5), an adjustment element (29) arranged along a path for the gas stream (30) between the inlet of gas (10) and the gas outlet (11) to adjust the gas stream (5), and a housing section (31, 39, 39') arranged along the path for the gas stream (30) to house an insertable element (9); and an insertable element (9) that is configured to be inserted in the housing section (31, 39, 39') and to guide the gas stream (5), the insertable element (9) comprising an inlet section (20) and an outlet section (21) for the gas stream (5), where the inlet section (20) has a larger cross section than the outlet section (21). (Machine-translation by Google Translate, not legally binding)

Description

PROVISION OF GAS VALVE AND GAS KITCHEN

The present invention refers to a gas valve arrangement for a gas cooker and a gas cooker comprising such a gas valve arrangement.

Typically, gas cookers can comprise a gas burner, an adjustment handle, and a gas valve. The gas stream flowing to the gas burner can be adjusted by means of the adjustment handle, which can be connected to the gas valve. Therefore, the gas valve may comprise an adjustment element that is configured to reduce the flow of gas to the burner. The gas for the gas burner can be provided by a gas source. However, as a result of the pressure drops in the gas stream, it may happen that the flames go out in the gas burner.

In addition, dirt from the gas source can flow into the gas stream into the gas valve and the gas burner. This may affect the operation of the gas valve or the flames in the gas burner.

The present invention solves the technical problem of providing an improved gas valve arrangement.

Accordingly, a gas valve arrangement is provided for a gas cooker. The gas valve arrangement comprises a gas valve device with a gas inlet to receive a gas stream, a gas outlet to emit the gas stream, an adjustment element that is arranged along a path for the gas stream between the gas inlet and the gas outlet to adjust the gas stream, and a housing section arranged along the path for the gas stream to accommodate an insertable element; and an insertable element that is configured to be inserted in the housing section and to guide the gas stream, the insertable element comprising an inlet section and an outlet section for the gas stream. Preferably, the input section has a larger cross section than the output section.

In contrast to conventional gas valve arrangements, the gas stream can be influenced by an additional element, that is, the insertable element. In particular, the gas flow can be reduced by means of the insert. By way of example, the gas valve device may be a standard gas valve. In particular, the insertable element is adapted to the valve of standard gas in such a way that an updated solution is provided. Thus, a cost effective solution can be provided. Preferably, the gas valve device is a construction group or component separate from the gas cooker. In particular, the gas inlet is provided in an interface with another component, preferably a gas line, in particular a gas line or gas pipe, of the gas cooker.

Preferably, the gas valve device receives gas from a gas source, in particular, a gas network or a gas bottle. By way of example, the gas outlet is provided at an interface with another component, preferably a gas line, in particular a gas line or gas pipe, of the gas cooker. This gas line can be connected to a venturi nozzle of the gas cooker. The venturi nozzle can provide gas for the gas burner. Therefore, the gas outlet may be configured to emit the gas stream to the gas burner. The gas valve device can comprise exactly one gas outlet.

Preferably, a channel is provided to guide or drive the gas stream from the gas inlet to the gas outlet. This channel forms the path for the gas stream. As an example, the adjustment element is configured to be adjusted by means of a control element, in particular a control axis. The adjustment element may be adjusted manually or electromechanically and may comprise a movable element that is configured to reduce the cross section of the flow for the gas stream.

The gas stream is a mass flow comprising flammable gas. The housing section is a section along the path for the gas stream to which the insertable element is adapted. Therefore, the housing section may be a conventional section of a standard gas valve. Alternatively, the housing section may be specifically adapted to the insertable element. Specifically, the housing section comprises the negative form of the insertable element. The accommodation section is part of the channel. Thus, the insertable element is configured to be inserted in the channel and, therefore, configured to be part of the channel.

The housing section may be a seat for the insertable element. In particular, the insertable element is configured to be attached to the housing section by means of a shape drag connection. The inlet section is a section of the flow that forms an inlet to the insert for the gas stream. The outlet section is a section of the flow that forms an outlet of the insert for the gas stream.

According to one embodiment, the insertable element is inserted in the housing section.

Thus, the insertable element can influence the gas stream effectively. In this state, the gas stream is guided through the insertable element when it crosses the path for the gas stream.

According to another embodiment, the insertable element is configured to attenuate the pressure drops of the gas stream at the gas outlet of the gas valve device.

This has the advantage of preventing the flames from going out in the gas burner.

According to another embodiment, the insertable element comprises a filtering device that is configured to remove particles from the gas stream.

The filtering device is preferably a dirt filter, in particular, an antiparticle filter. The filtering device can be a reducing filter. By way of example, the filtering device may comprise a grid.

According to another embodiment, the insertable element has a cylindrical outer geometry.

This has the advantage that the insertable element can be produced with little effort. The housing section comprises a cylindrical seat for the insert. Thus, the insertable element can be easily introduced.

According to another embodiment, the insertable element comprises at least two, in particular exactly four, inlet openings and at least one, in particular, exactly one, outlet opening.

The entrance openings form the entrance section and the exit opening forms the exit section. This has the relative advantage that the flow section for the gas stream can be reduced by the insert.

According to another embodiment, the insertable element comprises an interior volume. In addition, the insertable element is configured such that the gas stream expands in the internal volume when it passes through the insertable element.

The interior volume can be, for example, a chamber to stabilize the gas stream. This has the advantage that pressure drops can be avoided. By way of preferred, the filtering device is disposed within the interior volume. The inner volume is formed by a cylindrical volume and a truncated cone volume.

According to another embodiment, the insertable element comprises at least two through-through holes that extend from the inlet section to the inner volume.

Thus, the expansion of the gas stream is possible thanks to the increase in volume in the transition between the at least two through holes and the interior volume. Each entrance through hole has an arcuate or kidney-shaped cross section. As an example, each inlet through hole has a rounded outer cross-sectional geometry.

According to another embodiment, the at least two through holes are arranged around a longitudinal axis of the insert.

Therefore, the through through holes are arranged eccentrically. Preferably, the through-through holes extend steadily in a longitudinal direction that is parallel to the longitudinal axis.

According to another embodiment, the insertable element comprises at least one, preferably exactly one, through-exit hole that extends from the inner volume to the outlet section.

Preferably, the at least one through hole has rotational symmetry with respect to the longitudinal axis of the insert. Thus, the through exit hole can be produced with cost efficiency. The outlet opening corresponds to or is comprised of the at least one through hole.

According to another embodiment, the housing section for the insertable element is arranged along the path for the gas flow between the gas inlet and the adjustment element of the gas valve device.

Thus, by way of example, the dirt flowing along with the gas stream can be filtered before affecting the adjustment element. Preferably, exactly one insertable element is disposed along the path for the gas stream, where the insertable element is disposed along the path for the gas stream between the gas inlet and the adjustment element of the gas valve device.

According to another embodiment, the insertable element is configured to be inserted into the housing section through the gas inlet of the gas valve device.

This means that the insertable element is conducted through the gas inlet during its insertion in the housing section. The housing section is preferably arranged in an inlet zone of the gas valve device. The inlet zone comprises a multiple connection of the gas valve device. Preferably, the insertable element is configured to be inserted into the multiple connection. This has the advantage that the insertable element can be inserted into an assembled gas valve device. Thus, the gas valve device can be retrofitted with little effort.

According to another embodiment, the housing section for the insert is arranged along the path for the gas flow between the adjustment element and the gas outlet of the gas valve device.

Preferably, the housing section is arranged in a gas outlet zone of the gas valve device. Alternatively, the housing section is arranged before the gas outlet zone of the gas valve device. The insertable element may preferably be introduced into the gas valve device during its assembly. Thus, the insertable element is introduced into the gas valve device before final assembly. Therefore, the filtering device may be provided behind the adjustment element along the path for the gas stream. In this way, dirt can be prevented from leaving the gas valve device. Therefore, it is also avoided that there is dirt on the following elements, in particular, the burner. Preferably, exactly one insertable element is disposed along the path for the gas stream in the housing section, where the insertable element is disposed along the path for the gas stream between the adjustment element and the gas outlet of the gas valve device.

According to another embodiment, the gas valve device comprises another housing section for another insert, where the housing section is arranged along the path for the gas flow between the gas inlet and the adjustment element of the gas valve device, and where the other housing section is disposed along the path for the gas flow between the adjustment element and the gas outlet of the gas valve device.

Preferably, the gas valve arrangement comprises the other insertable element. In particular, the insertable element is inserted in the housing section and the other insertable element is introduced in the other housing section. This has the advantage that the dirt can be prevented from reaching the adjustment element and the dirt coming out of the gas outlet of the gas valve device. The gas valve device can comprise exactly two insertable elements. These insertable elements may have identical geometry or different geometries. Preferably, the gas valve device may comprise exactly two gas outlets. In the case of two gas outlets, an insertable element can be provided in the two gas outlets or gas outlet areas.

Also, a gas cooker with a gas valve arrangement of the exposed type is provided.

Preferably, the gas cooker comprises at least one cooking zone, in particular two, three, four, or five cooking zones. In addition, the gas cooker preferably comprises a gas injector that is connected to the gas valve device by a gas line, in particular, a gas conduit or gas tube. The gas cooker may also comprise a gas burner that is supplied with a gas mixture that is a mixture of the gas stream and primary air supplied in the gas injector. The gas valve device may comprise a control shaft to which a gas cooker control handle may be attached.

The embodiments and features described with reference to the gas valve arrangement of the present invention are applicable mutatits mutandis to the gas cooker of the present invention.

Other possible implementations or alternative solutions of the invention also comprise combinations (not explicitly mentioned herein) of features described above or below in relation to the embodiments. The person skilled in the art may also add individual or separate aspects and features to the most basic form of the invention.

Other embodiments, features and advantages of the present invention are drawn from the following description and the dependent claims, in connection with the accompanying drawings, in which:

Fig. 1 schematically shows a perspective view of a gas cooker;

Fig. 2 shows a perspective view of a gas valve arrangement for the gas cooker according to figure 1;

Fig. 3 shows a perspective view of an insert for the gas valve arrangement according to figure 2;

Fig. 4 shows another perspective view of the insertable element of Figure 3;

Fig. 5 shows a cross-sectional view V-V of Figure 3;

Fig. 6 shows a front view of the insertable element with a filtering device;

Fig. 7 shows a rear view of the insert according to figure 6;

Fig. 8 shows a cross-sectional view VIN-VIN of figure 2; Y

Fig. 9 shows a cross-sectional view IX-IX of Figure 2.

In the figures, the same reference symbols designate similar or functionally equivalent elements, unless otherwise indicated.

Figure 1 shows a gas cooker 1. The gas cooker 1 comprises at least one cooking zone 2 with a gas burner 3. Also, a gas valve arrangement 4 (see broken lines) is provided to control the gas stream 5 flowing to the gas burner 3. The gas stream 5 can be adjusted by means of a control element 6, in particular a control shaft, of the gas valve arrangement 4. The gas cooker 1 It also comprises a drive element 7 for directing the control element 6. The drive element 7 can be a control handle. The operation of the gas valve arrangement 4 can be carried out manually or electromechanically.

The gas burner 3 provides flames (not shown) to heat a cooking battery (not shown) arranged in the cooking zone 2. The gas cooker 1 can be provided as a cooking field. As an example, the gas cooker 1 can be provided with an oven (not shown) or without an oven. The gas cooker 1 may also comprise or not cooking zones that provide heat by electricity.

Figure 2 shows a perspective view of the gas valve arrangement 4. The gas valve arrangement 4 comprises a gas valve device 8 and a insertable element 9. The insertable element 9 is configured to be introduced into the gas valve device 8. Thus, the gas stream 5 can be positively influenced by the insertable element 9. The gas valve device 8 comprises a input 10 and output 11. Input 10 is configured to receive gas stream 5 and output 11 is configured to emit gas stream 5. Input 10 and / or output 11 may be provided in an interface with others components (not shown) of the gas cooker 1. By way of example, these other components may be a gas line, in particular, a gas conduit, a gas pipe, and the like.

Figure 3 shows a perspective view of the insertable element 9. The insertable element 9 has a cylindrical outer geometry. The front face 13 of the insertable element 9 comprises four inlet openings 14. The inlet openings 14 are arched with a rounded outer contour 15. Preferably, the inlet openings 14 or the outer contours 15 are kidney-shaped.

Figure 4 shows another perspective view of the insertable element 9. The rear face 16 of the insertable element 9 comprises exactly one outlet opening 17. The outlet opening 17 has a circular outer contour 18. Thus, the four inlet openings 14 (see Figure 3) are joined in an outlet opening 17.

Figure 5 shows a cross-sectional view VV of Figure 3. Each inlet opening 14 forms a part 19 of an inlet section 20 of the insertable element 9. The outlet opening 17 forms an outlet section 21. The section of inlet 20 and outlet section 21 are provided as sections of the flow for the gas stream 5. Preferably, the inlet section 20 has a larger cross section than the outlet section 21. In addition, the insert 9 comprises a inner volume 22, where the insert 9 is configured such that the gas stream 5 expands (see arrows) in the inner volume 22 when it flows through the insert 9.

The inner volume 22 comprises a cylindrical part 23 and a truncated cone part 24. The inner volume 22 stabilizes the gas stream 5 and, therefore, prevents pressure drops in the outlet opening 17 and / or the outlet 11 (see Figure 2). In addition, the insertable element 9 comprises through through holes 25 which extend from the inlet section 20 or inlet openings 14 to the inner volume 22. Each inlet through hole 25 corresponds to one of the inlet openings 14. The through holes 25 are arranged around a longitudinal axis L of the insert 9. The section 26 of the volume interior 22, in particular, of the cylindrical part 23, has a larger cross-section than the inlet section 20. Thus, the flow or volume section for the gas stream 5 increases in the transition between the inlet through holes 25 and the inner volume 22, in particular, the cylindrical part 23. Likewise, the insertable element 9 comprises at least one through-out hole 27 extending from the inner volume 22, in particular, the truncated cone part 24, towards the outlet section 21. By way of example, a fall is fixed of the pressure by reducing the section when the gas stream 5 enters the inlet section 20 and crosses the inner volume 22.

The truncated cone portion 24 narrows toward the through-out hole 27. The inner volume 22 and the through hole 27 have rotational symmetry with respect to the longitudinal axis L. The inner volume 22 forms a transition volume between the through holes. of inlet 25 and the through hole 27. Thus, the inlet section 20 and the outlet section 21 are in fluid connection. The gas stream 5 enters the insertable element 9 through the inlet openings 14 and exits the insertable element 9 through the outlet opening 17. The longitudinal axis L may be designed as the central axis of the insertable element 9. The outer geometry of the insert 9 has rotational symmetry with respect to the longitudinal axis L. By way of example, the insert 9 can be a one-piece element. The insert 9 can be made of metal, plastic, in particular, polybutylene terephthalate (PBT) or polyamide (for example, PA 66), ceramic, or a composite.

Figure 6 shows a front view of the insertable element 9. Unlike in Figures 3 and 4, the insertable element 9 comprises a filtering device 28 that is configured to filter the gas stream 5. The filtering device 28 comprises a grid and is, for example, a dirt filter and / or a particulate filter. The filtering device 28 is disposed within the inner volume 22. Specifically, the filtering device 28 is not disposed within the through holes 25, 27. Alternatively, the filtering device 28 may be arranged at least partially within the through hole 27 and / or through holes 25. The inlet openings 14 are arranged radially in relation to the longitudinal axis L. The arched or kidney shaped inlet openings 14 are curved about or toward the longitudinal axis L.

Figure 7 shows a front view of the insertable element 9 of Figure 6. The inlet openings 14 are radially at the same level as the outer contour 18 of the outlet opening 17.

Figure 8 shows the cross-sectional view VIM-VIM of Figure 2. This cross-section is a vertical section that extends through the control shaft 6 and the inlet 10. The gas valve device 8 comprises an element of adjustment 29. The adjustment element 29 is configured to adjust the flow or flow of the gas stream 5. In addition, the adjustment element 29 can be directed by the control element 6, in particular, the control axis. The path for the gas stream 30 for the gas stream 5 extends from inlet 10 to outlet 11 (see Figure 2). The path for the gas stream 30 is formed by a channel 34, 35, 36 (see Figures 8 and 9) that guides or conducts the stream of gas 5. The adjustment element 29 is arranged along the path for the gas stream 30 between the gas inlet 10 and the gas outlet 11 to adjust the gas stream 5. Preferably, the adjustment element 29 is configured to move, in particular, rotate, to adjust the gas stream 5.

Likewise, a housing section 31 is arranged along the path for the gas stream 30 to accommodate the insert 9. The insert 9 is inserted into the housing section 31. Optionally, the housing section 31 for the insert element 9 is arranged along the path for the gas stream 30 between the gas inlet 10 and the adjustment element 29 of the gas valve device 8 (as shown in Figure 8). Thus, dirt can be prevented from reaching the adjustment element 29, since the filtering device 28 can be provided within the internal volume 22 (see Figure 6) of the insertable element 9. Therefore, dirt can be avoided inside the gas valve device 8, which can affect the operation of the internal components. Additionally, pressure drops can be prevented after passing the outlet opening 17 of the insert 9.

As shown in Figure 8, the insert 9 is configured to be inserted in the housing section 31 through the gas inlet 10 of the gas valve device 8. This allows the insert 9 to be pushed through the gas inlet 10 into the housing section 31 with minimal effort. In this case, the gas valve device 8 can be completely assembled when the insert 9 is inserted in the housing section 31.

By way of example, the housing section 31 comprises a seat for the insertable element 9, in particular, the negative form of the insertable element 9. In particular, the housing section 31 comprises a cylindrical shape that corresponds to the outer geometry of the insertable element 9. As shown in Figure 8, the housing section 31 may be arranged in an entrance area 32 having the entrance 10. The entrance area 32 extends downward.

Likewise, a safety valve 33 may be provided that is configured to close the path for the gas stream 30. The safety valve 33 may be arranged along the path for the gas stream 30 between the inlet zone 32 of gas and the adjustment element 29. In the cross-sectional view of Figure 8, a first part of channel 34 is shown to guide the gas stream 5. Figure 9 shows a second part of channel 35, which is connected for fluids with the first channel part 34 by an intermediate channel 36 which extends at least partially horizontally (see Figures 8 and 9). The first channel part 34 has a "U" shape, a "C" shape, and / or a "L" shape. The path for the gas stream 30 is formed by the first portion of channel 34, the intermediate channel 36 , and the second part of channel 35.

Figure 9 shows a cross-sectional view IX-IX of Figure 2. This cross-section is a vertical section that extends through the outlet 11 and is parallel to the cross-section shown in Figure 8. The path for the gas stream 30 extends from the intermediate channel 36 downwards through a vertical section 37 of the second channel part 35 and then to the side through a horizontal section 38 of the second channel part 35 The outlet 11 is arranged at the end of the horizontal section 38.

Optionally, a housing section 39 for the insert 9 is disposed along the path for the gas stream 30 between the adjustment element 29 (see Figure 8) and the gas outlet 11 of the valve device of gas 8. The arrangement of the insert 9 in such a position has the advantage that the gas stream 5 leaving the outlet 11 is filtered immediately before leaving the gas valve device 8 via the filtering device 28 (see Figure 6). Thus, it can be avoided that there is dirt inside a gas burner circuit, which can affect the gas stream 5 in a burner injector or injector. As Figure 9 shows, the insertable element 9 can be arranged in a gas outlet zone 40, which is the final section of the horizontal section 38. By way of For example, such a position for the housing section 39 has the advantage that the insert 9 can be introduced through the outlet 11 after the gas valve device 8 has been completely assembled.

Alternatively, a housing section 39 'for the insert 9 can be provided in the vertical section 37 instead of the housing section 39. In this case, the gas stream 5 extends immediately from the intermediate channel 36 through of the insertable element 9 and then through the horizontal section 38. The insertable element 9 has to be introduced in the housing section 39 'during the assembly of the gas valve device 8.

By way of example, the gas valve arrangement 4 may comprise only one insertable element 9 that is inserted in the housing section 31, 39 or 39 ’(see Figures 8 and 9). Alternatively, the gas valve arrangement 4 may comprise an insertable element 9 that is inserted in the housing section 31 and another insertable element 9 that is inserted into another housing section 39, 39 ’.

Although the present invention has been described in accordance with the preferred embodiments, it will be obvious to the person skilled in the art that modifications can be made in all embodiments. By way of example, the insert 9 and the other insert 9 can be identical, have different geometries, or be provided with a filtering device 28 and without the filtering device 28. The gas valve device 8 can be directed exactly mechanically or at least partially electromechanically.

Reference symbols

Gas stove

Cooking zone

Gas burner

Gas valve arrangement

Gas stream

Control element

Drive element

Gas valve device

Insert element

Entry

Exit

Front face

Entry opening

Outer contour

Upper side

Exit opening

Outer contour

Part

Input section

Output section

Interior volume

Part

Part

Through Hole

Section

Through Hole

Filtering device

Setting element

Gas stream path

Accommodation section

Entrance area

Security valve

Channel part

Channel part

Intermediate channel

37 Vertical section

38 Horizontal section 39 Accommodation section 39 ’Accommodation section 40 Departure area

L Longitudinal axis

Claims (15)

1. Gas valve arrangement (4) for a gas cooker (1), comprising the gas valve arrangement (4): a gas valve device (8) with a gas inlet (10) to receive a gas stream (5), a gas outlet (11) to emit a gas stream (5), an adjustment element (29) arranged along a path for the gas stream (30) between the gas inlet (10) and the gas outlet (11) to adjust the gas stream (5), and a housing section (31, 39, 39 ’) arranged along the path for the gas stream (30) to accommodate an insertable element (9); Y an insertable element (9) that is configured to be inserted in the housing section (31, 39, 39 ') and to guide the gas stream (5), the insertable element (9) comprising an inlet section (20) and an outlet section (21) for the gas stream (5), where the inlet section (20) has a larger cross section than the outlet section (21). 2. Gas valve arrangement according to claim 1, wherein the insertable element (9) is inserted in the housing section (31, 39, 39 ’). 3. Gas valve arrangement according to claims 1 or 2, wherein the insertable element (9) is configured to attenuate the pressure drops of the gas stream (5) at the gas outlet (11) of the valve device gas (8). 4. Gas valve arrangement according to one of claims 1-3, wherein the insert (9) comprises a filtering device (28) that is configured to remove particles from the gas stream (5). 5. Gas valve arrangement according to one of claims 1-4, wherein the insertable element (9) has a cylindrical outer geometry. 6. A gas valve arrangement according to one of claims 1-5, wherein the insert (9) comprises at least two, in particular exactly four, inlet openings (14) and at least one, in particular, exactly one , exit opening (17). 7. Gas valve arrangement according to one of claims 1-6, wherein the insert (9) comprises an inner volume (22) and is configured such that the gas stream (5) expands in the inner volume (22) when it passes through the insertable element (9). 8. A gas valve arrangement according to claim 7, wherein the insert (9) comprises at least two through-through holes (25) extending from the inlet section (20) to the inner volume (22). 9. A gas valve arrangement according to claim 8, wherein the at least two inlet holes (25) are disposed around a longitudinal axis (L) of the insert element (9). 10. A gas valve arrangement according to one of claims 7-9, wherein the insert (9) comprises at least one through-hole (27) extending from the inner volume (22) to the outlet section ( twenty-one). 11. Gas valve arrangement according to one of claims 1-10, wherein the housing section (31) for the insert (9) is arranged along the path for the gas stream (30) between the inlet of gas (10) and the adjustment element (29) of the gas valve device (8). 12. Gas valve arrangement according to claim 11, wherein the insertable element (9) is configured to be inserted into the housing section (31) through the gas inlet (10) of the gas valve device (8) ). 13. Gas valve arrangement according to one of claims 1-10, wherein the housing section (39, 39 ') for the insert (9) is arranged along the path for the gas stream (30) between the adjustment element (29) and the gas outlet (11) of the gas valve device (8). 14. Gas valve arrangement according to one of claims 1-13, wherein the gas valve device (8) comprises another housing section (39, 39 ') for another insert element (9), wherein the housing section (31) is arranged along the path for the gas stream (30) between the gas inlet (10) and the adjustment element (29) of the gas valve device (8), and where the other section accommodation (39, 39 ') is arranged along the path for the gas stream (30) between the adjustment element (29) and the gas outlet (11) of the gas valve device (8). fifteen.

Gas cooker (1) with a gas valve arrangement (4) according to one of claims 1-14.