Gas cooking and / or gas grilling system and method for starting a gas cooking and / or gas grilling system
Patent Information
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- KOQOON GMBH & CO KG
- Filing Date
- 2024-08-01
- Publication Date
- 2026-06-10
AI Technical Summary
Gas cooking and/or gas grilling systems for home use face challenges in ensuring safe startup, particularly preventing unburned gas from escaping and accumulating, which can lead to safety risks.
A gas cooking and/or gas grilling system with a pilot burner, flame monitor, and ignition electrode, where the pilot burner has a tube with gas emissions, and a control device that logically releases the burner unit valves upon detecting a flame, ensuring the pilot burner ignites across its length and providing a consistent flame for igniting gas from the burner units, while the control device manages the main valve to prevent gas accumulation.
The system securely starts the gas cooking and/or gas grilling system by ensuring the pilot burner ignites evenly across its length, preventing gas accumulation and ensuring safe operation by maintaining the main valve open as long as a flame is detected, thus preventing unburned gas from escaping and accumulating.
Smart Images
Figure EP2024071780_06022025_PF_FP_ABST
Abstract
Description
[0001] Gas cooking and / or gas grill system and method for starting a gas cooking and / or gas grill system
[0002] The invention relates to a gas cooking and / or gas grilling system and a method for starting a gas grilling system.
[0003] Gas cooking and / or gas grill systems, especially those for home use, must be operated safely. This includes the safe starting of the gas cooking and / or gas grill system. In particular, unburned gas must be prevented from escaping and accumulating in a grill or cooking chamber to avoid the risk of explosion.
[0004] The invention is based on the object of creating a gas cooking and / or gas grill system and a method for starting a gas cooking and / or gas grill system, with which in particular the starting of the gas cooking and / or gas grill system can be ensured.
[0005] The object is achieved according to the invention by a gas cooking and / or gas grill system having the features of patent claim 1, a pilot burner having the features of patent claim 12, and a method having the features of patent claim 13. Advantageous embodiments of the invention emerge from the subclaims.
[0006] In particular, a gas cooking and / or gas grilling system is provided, comprising a main valve, a plurality of burner units, each with a valve, a pilot burner with a flame detector and an ignition electrode, and a control device, wherein the main valve is connected or can be connected on the inlet side to a gas inlet for connection to a gas source and is connected on the output side to the respective valves of the burner units and to the pilot burner, wherein the pilot burner has a tube arranged on the burner units with a plurality of gas outlets, wherein the flame detector is arranged at one end of the tube and wherein the ignition electrode is arranged at another end of the tube, wherein the control device is configured to logically release the valves of the burner units for activation when the flame detector has detected a flame.Furthermore, in particular, a pilot burner for a gas cooking and / or gas grill system with a plurality of burner units is provided, comprising a tube with a plurality of gas outlets, a flame detector arranged at one end of the tube, and an ignition electrode arranged at another end of the tube.
[0007] Furthermore, in particular, a method is provided for starting a gas cooking and / or gas grilling system, wherein the gas cooking and / or gas grilling system has a main valve and a plurality of burner units with respective valves and a pilot burner arranged on the burner units, comprising the following steps: opening the main valve of the gas cooking and / or gas grilling system, igniting the pilot burner at one end of a tube of the pilot burner by means of an ignition electrode arranged there, detecting a flame at another end of the tube by means of a flame detector, logically releasing the valves of the burner units when a flame is detected at the flame detector.
[0008] The gas cooking and / or gas grilling system, the pilot burner, and the method make it possible to safeguard the start-up process of the gas cooking and / or gas grilling system. This is achieved in particular by the pilot burner comprising a tube, at one end of which an ignition electrode is arranged and at the other end of which a flame detector is arranged. The ends refer in particular to a longitudinal direction of the pilot burner tube. This ensures that the pilot burner has ignited across the entire tube, since the ignition moves gradually from the ignition electrode to the flame detector. The tube is arranged on the burner units of the gas cooking and / or gas grilling system so that flames from the pilot burner are always available to ignite gas escaping from the burner units. By means of the control device, in particular, a signal from the flame detector is received and evaluated.The control unit is configured to logically release the valves of the burner units for activation when the flame detector detects a flame. Logically release specifically means that the valves remain mechanically closed, but can be mechanically switched after logical release to supply the burner units with gas. Mechanical switching can occur, for example, based on a user's action and / or by the control unit and / or a higher-level grill control system. If, however, the valves are not logically released, they cannot be opened mechanically. This is specifically a logical interlock.
[0009] The flame detector is, in particular, an ionization detector, meaning it detects ion currents caused by ionization occurring within or at the flame on the pilot burner. For this purpose, the flame detector, for example, provides a voltage between two electrodes between which the gas-air mixture or flame is arranged. In the presence of a flame, a much larger current is detected due to the ionization than in the absence of a flame. The flame detector generates, in particular, a signal corresponding to the presence or absence of the flame, which is fed to the control device and evaluated by the control device. For example, the signal can be compared with a predetermined threshold value to determine whether a flame is present at the flame detector or not. Alternatively, other types of flame detectors can, in principle, also be used.
[0010] The burner units are arranged side by side, in particular to provide multiple cooking, roasting, or grilling zones. The burner units comprise, in particular, elongated, particularly flattened and / or rectangular, housings with a plurality of gas outlets from which gas can flow. The gas outlets are arranged, in particular, in rows along a longitudinal direction. In particular, the gas outlets can be arranged on both sides at regular intervals along the entire longitudinal direction. The gas cooking and / or gas grilling system comprises, in particular, at least two burner units, preferably four or more burner units.
[0011] The tube of the pilot burner is in particular arranged below the burner units, which facilitates the ignition of gas flowing out of the burner units. The tube can be made of stainless steel, for example. The gas outlets on the tube are in particular arranged at regular intervals, for example at a distance of between 1 and 2 cm, over the entire length of the tube. This ensures that the flame propagates from one end of the tube to the other end during ignition. The gas outlets are in particular arranged on an upper side of the tube, so that the flames are provided at the upper side of the tube. In particular, it can be provided that the gas outlets are arranged on an upper side at approximately 11 o'clock or approximately 1 o'clock with reference to a round cross-section of the tube.In particular, the tube is arranged on all burner units, i.e., the tube extends in particular over the entire distance along which the burner units are arranged. If, for example, the burner units are arranged next to one another with respect to a width, the tube extends across the entire width from the first burner unit to the last burner unit. The tube has, in particular, a length that corresponds to the extension and number of burner units. Depending on the design of the gas cooking and / or gas grill system, the length can be in the range between approximately 10 cm and approximately 1 meter.
[0012] The main valve and the valves are, in particular, electrically controllable and / or adjustable, meaning that the state of the main valve and the valves can be set and / or adjusted using electrical signals. The main valve and the valves are controlled by the control device.
[0013] Parts of the gas cooking and / or gas grill system, in particular the control device, can be implemented individually or collectively as a combination of hardware and software, for example, as program code executed on a microcontroller or microprocessor. However, it can also be provided that parts are implemented individually or collectively as an application-specific integrated circuit (ASIC) and / or a field-programmable gate array (FPGA). The control device can be part of a higher-level grill control system.
[0014] An ignition process, for example, can comprise a maximum of three cycles of 11 seconds each. These cycles consist of a 3-second purge cycle (the main valve is opened, gas fills the pipe, but ignition is not yet initiated) and an 8-second ignition cycle (the main valve remains open, and ignition is initiated for 8 seconds, i.e., ignition sparks are generated at the ignition electrode). After this cycle, the main valve is closed again. As soon as a flame is detected by the flame detector during the ignition process (or during re-ignition), the ignition process is aborted, and the system returns to normal operation. The ignition process can be controlled, in particular, by the control unit or a higher-level grill control unit.
[0015] In one embodiment, it is provided that the logical release includes an release for remote control of the valves. This allows remote control of the individual valves after the release. In particular, it can be provided that a volume flow of the respective valve can be set or regulated directly or indirectly by means of such a remote control. This can be done, for example, remotely using a smartphone or a tablet computer via a communication interface set up for this purpose. In particular, it can be provided that setpoints for a power output, a cooking or grilling level, a temperature or setpoints for a volume flow of the gas are specified, which are then implemented, for example, by the control device and / or a higher-level grill control device by controlling the valves.
[0016] In one embodiment, the flame detector is located at the end of the tube where a gas inlet enters the tube. Accordingly, the ignition electrode is located at the other end, opposite the gas inlet. This ensures that the flame is moved across the entire tube before a flame is detected. After successful ignition, flames are then present along the entire length of the tube.
[0017] In one embodiment, the control device is configured to keep the main valve open at least as long as a flame is detected at the flame detector. This allows the flame detected at the flame detector to be used not only to safeguard the start-up process, but also to safeguard operation. If a flame is detected at the flame detector, the control device keeps the main valve open based on a corresponding signal from the flame detector, since it can be assumed that safe operation is possible and that gas escaping from the burner units is ignited by the flames emerging from the pilot burner tube. In particular, a status of the flame detector is checked continuously, in particular at regular intervals, by means of the control device, for example by comparing a signal from the flame detector with a predetermined threshold value.
[0018] In one embodiment, the control device is configured to close the main valve if the flame detector does not detect a flame for at least a predetermined period of time. This ensures the operation of the gas cooking and / or gas grill system. If the flame on the pilot burner tube goes out, there is a risk that gas escaping from the burner units can no longer be ignited and will accumulate in the grill, cooking, or cooking chamber. The extinguishing of the flame is detected by the flame detector, and the control device switches off the main valve based on a signal from the flame detector corresponding to the extinguishing of the flame. In particular, a status of the flame detector is checked continuously, in particular at regular intervals, by means of the control device, for example by comparing a signal from the flame detector with a predetermined threshold value.
[0019] In one embodiment, the control device is configured to actuate the main valve and the ignition electrode according to a predetermined start-up sequence when the flame detector has detected that the flame has gone out. This allows, upon detection of the flame going out by the flame detector, an attempt to re-ignite the pilot burner can be made, at least for a limited number of attempts. For example, after detecting the flame going out, an ignition attempt can be made for a few seconds with the main valve still open, followed by a few seconds of purging without an ignition pulse at the ignition electrode with the main valve open, and then another attempt to ignite the burner for a few seconds using ignition pulses at the ignition electrode. For re-ignition, the ignition process described above is used, for example. If this procedure is successful, the gas cooking and / or gas grill system can continue to be operated.If, however, the procedure is not successful, the main valve in particular is closed using the control device.
[0020] In one embodiment, it is provided that the control device is configured to enable a repeat run of the predefined start-up sequence after unsuccessful completion of the predefined start-up sequence only after receiving and / or detecting an acknowledgment performed by a user. This makes it possible to limit the number of starts after the flame has gone out to a predefined number (e.g. 0, 1, 2, ... etc.). The acknowledgment takes place, for example, on a control element on the grill, which must be operated by a user, in particular on site, so that the gas cooking and / or gas grill system can be restarted. This can also give the user the opportunity, in particular, to check the status of the gas cooking and / or gas grill system by visual inspection and / or further testing on site. In one embodiment, it is provided that the tube is arranged perpendicular to a longitudinal direction of the burner units.This allows for particularly effective ignition, as the distance between the combustion units is minimal. In particular, this allows the tube to be designed with a minimal length.
[0021] In one embodiment, the tube is arranged at the respective ends of the burner units opposite the gas inlets of the burner units. This allows ignition at the burner units to occur when the burner units are completely flooded with gas. In other words, the gas flows from the gas inlet completely through the burner unit before ignition occurs, since ignition cannot occur beforehand. Gas then flows briefly from all gas outlets before ignition occurs. This can, in particular, prevent incomplete ignition at the gas outlets of the burner units due to uneven gas distribution, i.e., ignition only at some of the gas outlets.
[0022] In one embodiment, at least one baffle plate is arranged above the tube to guide the flame. This allows a flame to be directed more effectively to the burner units. Furthermore, this ensures more even combustion of the gas, as the gas can collect below the flame plate. The baffle plate can also protect the combustion process from potentially occurring disruptive influences, such as gusts of wind. The baffle plate is particularly shaped like a projection or a roof and / or has an inverted V-shape.
[0023] In one embodiment, the burner units each have a slot-shaped recess on their underside for flame guidance, with the tube being arranged at the slot-shaped recess. This can further improve the ignition of the burner units. The slot-shaped recess serves in particular to guide a flame from one long side of a burner unit to an opposite long side of the burner unit. This can be exploited to ignite both sides of the burner units using the flames on the pilot burner tube. Further features relating to the design of the pilot burner and the method will become apparent from the description of embodiments of the gas cooking and / or gas grill system. The advantages of the pilot burner and the method are the same as in the embodiments of the gas cooking and / or gas grill system.
[0024] The invention will be explained in more detail below using preferred embodiments with reference to the figures.
[0025] Fig. 1 is a schematic diagram illustrating embodiments of the gas cooking and / or gas grilling system;
[0026] Fig. 2 is a schematic representation of a burner arrangement in a perspective view from below to illustrate embodiments of the gas cooking and / or gas grilling system;
[0027] Fig. 3 is a schematic representation of a burner arrangement in a perspective view from above to illustrate the embodiments of the gas cooking and / or gas grilling system;
[0028] Fig. 4 is a schematic representation of a burner arrangement in a side view to illustrate the embodiments of the gas cooking and / or gas grill system;
[0029] Fig. 5 is a schematic diagram illustrating a signal flow within the gas cooking and / or gas grill system;
[0030] Fig. 6 is a schematic diagram illustrating embodiments of the gas cooking and / or gas grilling system;
[0031] Fig. 7 is a schematic flow diagram illustrating embodiments of the method for starting the gas cooking and / or gas grill system.
[0032] Fig. 1 shows a schematic representation to illustrate
[0033] Embodiments of the gas cooking and / or gas grilling system 1. The gas cooking and / or gas grilling system 1 comprises a burner arrangement 2, which is described in more detail below with reference to the other figures.
[0034] Figures 2, 3, and 4 show schematic representations of a burner assembly 2 to illustrate embodiments of the gas cooking and / or gas grilling system. Figure 2 shows the burner assembly 2 of the gas cooking and / or gas grilling system from a bottom perspective. Figure 3 shows the burner assembly 2 of the gas cooking and / or gas grilling system from a top perspective. Figure 4 shows the burner assembly 2 of the gas cooking and / or gas grilling system in a side view.
[0035] The burner arrangement 2 of the gas cooking and / or gas grill system comprises a main valve 3, several burner units 4, each with a valve 5, a pilot burner 6 with a flame detector 7 and an ignition electrode 8, and a control device 9.
[0036] The main valve 3 is fluidly connected on the inlet side to a gas inlet 10 for connection to a gas source or can be connected to the gas source there. On the outlet side, the main valve 3 is fluidly connected via distribution pipes 11, 12 to the respective valves 5 of the burner units 4 and to the pilot burner 6.
[0037] The pilot burner 6 has a tube 13 with several gas outlets arranged on the burner units 4. The flame detector 7 is arranged at one end 14 of the tube 13, and the ignition electrode 8 is arranged at an opposite end 15 of the tube 13.
[0038] The control device 9 is designed to logically release the valves 5 of the burner units 4 for control when the flame detector 7 has detected a flame.
[0039] Fig. 5 shows a schematic representation to illustrate a signal flow within the gas cooking and / or gas grill system, as shown in Figures 1 to 4. The control device 9 can be part of a higher-level control device of the gas cooking and / or gas grill system or form such a device. The control device 9 can directly or indirectly control and / or regulate the states of the main valve 3 and the valves 5. Furthermore, the control device 9 receives a signal from the flame detector 7 of the pilot burner 6 and can control the ignition electrode 8 of the pilot burner 8 or initiate ignition directly or indirectly. The control device 9 comprises in particular at least one computing device, e.g. a microprocessor, and at least one memory. In particular, program code is stored in the memory, which, when executed on the computing device, initiates the computing operations necessary for the method.
[0040] It can be provided that the logical release includes a release for remote control of the valves 5. For this purpose, corresponding information can be set or changed, for example, in a memory of the control device 9. Furthermore, a corresponding release signal can be generated and provided additionally or alternatively. Based on this information (or the release signal), the control device 9 or a higher-level control device of the gas cooking and / or gas grill system can allow (or prevent) remote control of the valves 5.
[0041] It can be provided that the flame detector 7 is arranged at the end 14 of the tube 13 at which a gas inlet into the tube 13 occurs. This embodiment is shown in Figures 2 to 4. The gas inlet here takes place via the distributor pipe 12 at end 14. The flame detector 7 is also arranged there. The ignition electrode 8 is correspondingly arranged at the other end 15. This ensures that the tube 13 is completely flooded with gas before ignition can occur at end 15. The flame then moves from end 15 at which ignition occurred to end 14 at which the flame detector 7 is arranged. If the flame detector 7 detects a flame, the flames along the entire tube 13 are already ignited.
[0042] It can be provided that the control device 9 is designed to keep the main valve 3 open at least as long as a flame is detected at the flame detector 7.
[0043] It can be provided that the control device 9 is configured to close the main valve 3 if the flame detector 7 does not detect a flame for at least a predetermined time. The predetermined time can, for example, be in the range of one second.
[0044] It can be provided that the control device 9 is configured to control the main valve 3 and the ignition electrode 8 according to a predetermined start-up sequence when the flame detector 7 has detected the extinction of the flame. For this purpose, in particular, the ignition process can be carried out as already described above.
[0045] It can be provided that the control device 9 is configured to enable a repeat run of the predefined start sequence after unsuccessful completion of the predefined start sequence only after receiving and / or detecting an acknowledgment 16 performed by a user. For this purpose, an operating device 17 can be provided on the gas cooking and / or gas grill system, which is connected to the control device 9 and at which the acknowledgment 17 is detected. After receiving and / or detecting the acknowledgment 16, the control device 9 initiates the start sequence again.
[0046] It can be provided that the tube 13 is arranged perpendicular to a longitudinal direction 18 of the burner units 4. This embodiment is shown in Figures 1 to 4.
[0047] It can be provided that the tube 13 is arranged at respective ends 19 of the burner units 4 opposite the gas inlets of the burner units 4. This embodiment is shown in Figures 2 to 4.
[0048] It can be provided that at least one baffle 20 for flame guidance is arranged above the tube 13. This embodiment is shown schematically in Fig. 6, which shows a side view or a section through the tube 13. The gas outlet openings 22 on the tube 13 are arranged, with respect to an axis of symmetry of the opening, in particular at an angle of approximately 45° to a surface of the baffle 20. The flames begin at the gas outlet openings 22 and are then limited upwards or guided downwards by the baffle 20. The baffle 20 has, in particular, a downwardly angled section 23 through which the flames are guided downwards and rise steeply upwards at one edge of the angled section 23. The baffle 20 is fastened to the tube 13, for example by means of riveted connections 24.
[0049] It can be provided that the burner units 4 each have a slot-shaped recess 21 (Fig. 6) on a lower side for flame guidance, wherein the tube 13 is arranged at the slot-shaped recess 21. The edge of the guide plate 20 is arranged in particular below the slot-shaped recess 21.
[0050] Figure 7 shows a schematic flow diagram illustrating one embodiment of the method for starting a gas cooking and / or gas grill system. The method is carried out, for example, on a gas cooking and / or gas grill system according to one of the embodiments described above.
[0051] To start the start-up process, it may be provided, for example, that a user gives a command intended for this purpose (e.g. "start"), for example by actuating a control element intended for this purpose on site at the gas cooking and / or gas grill system, by which the process is started.
[0052] In a method step 100, the main valve 3 of the gas cooking and / or gas grill system 1 is opened. This allows gas to pass through the main valve 3 and flow via the distribution pipes 11 and 12 into the pipe 13 of the pilot burner 6.
[0053] In a method step 101, the pilot burner 6 is ignited at one end 14, 15 of the tube 13 of the pilot burner 6 by means of the ignition electrode 8 arranged there. It can be provided that after the main valve 3 has been opened, a predetermined time is waited until ignition (e.g. a few seconds) so that the tube 13 can be completely filled with gas. Ideally, the ignition causes the gas flowing out along the top side of the tube 13 to be ignited at the gas outlets arranged there, so that a chain of flames along the
[0054] pipe 13 and spreads from one end 14, 15 along the pipe 13 to the other end 14, 15.
[0055] In a method step 102, a flame at the other end 14, 15 of the tube 13 is detected by the flame detector 7. For this purpose, in particular, an ion current is detected, and a signal corresponding to the ion current (or the lack of ion current) is generated and transmitted to the control device 9 of the gas cooking and / or gas grill system 1.
[0056] In a method step 103, the transmitted signal is evaluated by the control device 9. For example, it can be provided that the transmitted signal is compared with a value range and / or a predetermined threshold value. If the comparison shows that an ion current was detected, from which it can be concluded that a flame is present, the valves 5 of the burner units 4 are logically released in a method step 104. Subsequently, the valves 5 can be controlled to mechanically open and close or position themselves. In particular, it can be provided that the logical release includes a release for remote control, for example by means of a smartphone or a tablet computer. If, on the other hand, the comparison shows that no ion current was detected, from which it can be concluded that a flame is absent, the valves 5 of the burner units 4 are not released.In a method step 105, a corresponding feedback can be generated and provided by the control device 9.
[0057] After release, it can be provided that the control device 9 keeps the main valve 3 open at least as long as a flame is detected at the flame detector 7. For this purpose, in a method step 106, a check is repeatedly carried out, in particular at regular intervals, to determine whether or not the signal transmitted by the flame detector 7 still indicates an ion current or the presence of a flame. If this is the case, method step 106 is repeated. If, however, this is not the case, an attempt can be made to restart the gas cooking and / or gas grill system 1 in a method step 107, for example by carrying out a predetermined start-up sequence, as already described above.
[0058] If the start-up process is unsuccessful, which is checked, for example, in a method step 108 (flame present, yes or no), it is provided, particularly in a method step 109, that the control device 9 closes the main valve 3 if the flame detector 7 does not detect a flame for at least a predetermined time. If the restart is successful, the system returns to method step 106.
[0059] It can be provided that, after unsuccessfully completing the predefined start sequence, the control device 9 only allows a repeat run of the predefined start sequence after receiving and / or detecting an acknowledgment performed by a user. For this purpose, a method step 110 can be provided to check whether such an acknowledgment is present or not. If it is present, the system returns to method step 107. If, however, an acknowledgment is not present, method step 110 is repeated.
[0060] List of reference symbols
[0061] 1 gas cooking and / or gas grill system
[0062] 2 burner arrangement
[0063] 3 Main valve
[0064] 4 burner unit
[0065] 5 Valve (burner unit)
[0066] 6 pilot burners
[0067] 7 flame detectors
[0068] 8 ignition electrode
[0069] 9 Control device
[0070] 10 Gas inlet
[0071] 11 Distribution pipe
[0072] 12 distribution pipe
[0073] 13 tube (pilot burner)
[0074] 14 End
[0075] 15 other end
[0076] 16 Acknowledgement
[0077] 17 Operating device
[0078] 18 Longitudinal direction
[0079] 19 End (opposite gas inlet)
[0080] 20 guide plate
[0081] 21 slot-shaped recess
[0082] 22 Gas outlet opening
[0083] 23 angled section
[0084] 24 riveted joint
[0085] 100-110 process steps
Claims
Patent claims 1. Gas cooking and / or gas grill system (1), comprising: - a main valve (3), - several burner units (4) each with a valve (5), - a pilot burner (6) with a flame detector (7) and an ignition electrode (8), and - a control device (9), wherein the main valve (3) is connected or can be connected on the input side to a gas inlet (10) for connection to a gas source and on the output side to the respective valves (5) of the burner units (4) and to the Pilot burner (6) is connected, wherein the pilot burner (6) has a tube (13) arranged on the burner units (4) and having a plurality of gas outlets (22), wherein the flame detector (7) is arranged at one end (14, 15) of the tube (13) and wherein the ignition electrode (8) is arranged at another end (14, 15) of the tube (13), wherein the control device (9) is designed to logically release the valves (5) of the burner units (4) for actuation when the flame detector (7) has detected a flame.
2. Gas cooking and / or gas grill system (1) according to claim 1, characterized in that the logical release includes a release for remote control of the valves (5).
3. Gas cooking and / or gas grill system (1) according to claim 1 or 2, characterized in that the flame detector (7) is arranged at the end (14) of the tube (13) at which a gas inlet into the tube (13) takes place.
4. Gas cooking and / or gas grill system (1) according to one of the preceding claims, characterized in that the control device (9) is designed to keep the main valve (3) open at least as long as a flame is detected at the flame detector (7).
5. Gas cooking and / or gas grill system (1) according to one of the preceding claims, characterized in that the control device (9) is designed to is arranged to close the main valve (3) if the flame detector (7) does not detect a flame for at least a predetermined time.
6. Gas cooking and / or gas grill system (1) according to one of the preceding claims, characterized in that the control device (9) is designed to control the main valve (3) and the ignition electrode (8) according to a predetermined start-up sequence when the flame detector (7) has detected the extinguishing of the flame.
7. Gas cooking and / or gas grill system (1) according to claim 6, characterized in that the control device (9) is designed to enable, after unsuccessful completion of the predetermined start-up sequence, a renewed run of the predetermined start-up sequence only after receiving and / or detecting an acknowledgment (16) carried out by a user.
8. Gas cooking and / or gas grill system (1) according to one of the preceding claims, characterized in that the tube (13) is arranged perpendicular to a longitudinal direction (18) of the burner units (4).
9. Gas cooking and / or gas grill system (1) according to one of the preceding claims, characterized in that the tube (13) is arranged at respective ends (19) of the burner units (4) opposite the gas inlets of the burner units (4).
10. Gas cooking and / or gas grill system (1) according to one of the preceding claims, characterized in that at least one baffle for flame guidance is arranged above the tube.
11. Gas cooking and / or gas grill system (1) according to one of the preceding claims, characterized in that the burner units (4) each have a slot-shaped recess (21) on an underside for flame guidance, wherein the tube (13) is arranged on the slot-shaped recess (21).
12. Pilot burner (6) for a gas cooking and / or gas grill system (1) with a plurality of burner units (4), comprising: a tube (13) with a plurality of gas outlets (22), a flame detector (7) arranged at one end (14, 15) of the tube (13), and an ignition electrode (8) arranged at another end (14, 15) of the tube (13).
13. A method for starting a gas cooking and / or gas grilling system (1), wherein the gas cooking and / or gas grilling system (1) has a main valve (3) and a plurality of burner units (4) with respective valves (5) and a pilot burner (6) arranged on the burner units (4), comprising the following steps: - Opening the main valve (3) of the gas cooking and / or gas grill system (1), - igniting the pilot burner (6) at one end (14, 15) of a tube (13) of the pilot burner (6) by means of an ignition electrode (8) arranged there, - detecting a flame at another end (14, 15) of the tube (13) by means of a flame detector (7), - logical release of the valves (5) of the burner units (4) when a flame is detected at the flame detector (7).