Gas burner

Abstract

The claimed gas burner relates to a domestic gas appliance, providing improved safety, reliability and long life, while also reducing dependence on electrical power. The gas burner comprises a housing, a diffuser, a nozzle, a valve, a temperature sensor and a rod arranged along the central vertical axis of the burner, capable of controlling the supply of gas through the nozzle. The inner cavity of the cylinder of the body of the diffuser is provided with an upper partition and a lower partition, having in their center apertures aligned with the vertical axis of the burner, in which the rod is mounted for vertical movement up and down. Mounted on the lateral extension of the lower partition is an automatic safety mechanism, comprising a temperature sensor, a flow sensor and a catch with a spring, wherein the catch is mounted on a pivot of the lower partition extension for rotation, the temperature sensor consists of a metal part fastened on the body of the diffuser and a thermal element mounted on the pivot together with the flow sensor, and the rod is provided with a spring and a stop ring and has an annular recess at the height of the catch.

Description

[0001] This invention relates to household gas appliances, and more particularly to stoves, oven burners, and burners with flame management mechanisms that automatically cut off the gas supply when the flame burns out, using both liquefied petroleum gas (LPG) and natural gas.

[0002] The disadvantages of existing technologies include the low performance and availability of existing gas burners; more specifically, the reliability of automatic safety systems is insufficient due to their structural complexity and redundancy of components and parts; the ignition process is inconvenient; upgrading existing equipment is difficult; and safety devices are dependent on power sources.

[0003] A known example of prior art is Russian Patent No. 2126935 C1, F23D14 / 72 F23N 5 / 12 (1995.01), published on February 27, 1999, entitled "Method and Apparatus for Flame Management of Gas Burners (СПоСоОБ КоОНТРОЛЯ ПЛАМЕНИ ГОРЕЛКИ ГАЗОВОЙ ПЛИТЫ И УСТРОЙСТВО ДЛЯ ЕГО)". The patented technology of OCSTEBLENIEY involves a flame sensor designed as an adjustable metal electrode. This adjustable metal electrode monitors the conductivity of the air gap between the burner and an electrode that sends a signal to an electronic amplifier. The electronic amplifier relays this signal to the holding coil of a solenoid valve that controls the gas supply to the burner. The working part of the monitoring electrode has a diameter of 1.5 mm to 3 mm and a sharp tip with an angle of 30° to 60° at its end. The electronic amplifier circuit has a timing capacitor to ensure that the gas supply is not immediately cut off when the flame burns out, thus triggering an alarm. Its disadvantages include structural complexity and dependence on power supplies and electronic components.

[0004] A known example of the prior art is Russian Patent No. 2751556 C2, F23N 5 / 10, F23N 5 / 20, F23N 5 / 24, F24C 3 / 12 (2006.01), published on July 14, 2021, which describes an electromagnet-thermocouple system (СИСТЕМА ЭЛЕКТРОМАГНИТ-ТЕРМОПАРА ДЛЯ ОБЕСПЕЧЕНИЯ ИЗБЫТОЧНОЙ БЕЗОПАСНОСТИ ПОАЧИ ГАЗА) published on July 14, 2021. The patented technology of V GORKI ILI PODBOBE USE (Vol. GORKI ILI PODBOBE USE) describes an electromagnet-thermocouple system comprising: at least one gas burner connected to a gas supply source via a flame control device and a safety valve activated by a flame sensor including a thermocouple; the safety valve having an open state and a closed state, wherein in the open state, the gas supply source supplies gas to the burner, and in the closed state, the gas supply is cut off; if a flame is present, the thermocouple generates an electrical signal that serves as a control signal for the safety valve, switching the safety valve from the open state to the closed state, and vice versa; the device includes a control signal generator and a power supply for providing temporary alternating current to the safety valve during the ignition phase when the thermocouple is heated to a temperature capable of generating the control signal.

[0005] The known example of prior art (methods and related devices for controlling flames via thermocouples) suffers from passivity and insufficient reliability. The electromotive force (10 mV to 30 mV) generated by the thermocouple is finite, and the thermocouple tip (thermally welded) must be precisely inserted into the flame operating area to ensure a secure hold of the solenoid valve, which is difficult when the flame height changes due to gas pressure fluctuations and gas supply adjustments. Simultaneously, a low transfer resistance value must be maintained between the thermocouple and the holding coil, and these can change if materials oxidize, leading to a sharp drop in coil holding power and ultimately resulting in false triggering of safety devices and malfunction of the gas stove. The passive nature of the thermocouple requires the consumer to use a button to hold the magnet for up to 30 seconds after ignition to ensure stable burner operation. This significantly reduces the availability and performance of the gas appliance. Furthermore, the delay between flame burnout and gas shut-off can be as high as 90 seconds, causing gas to accumulate in the oven and room. The device also lacks an activation alarm, requiring additional visual monitoring of gas stove operation and flame presence.

[0006] Known gas-operated household appliances for cooking food (including kitchen stoves and ovens) use redundant safety systems that include a gas shut-off electromagnet installed in a valve and a thermocouple that keeps such a valve closed.

[0007] As those skilled in the art will understand, thermocouples cannot generate sufficient power to activate the electromagnet and switch it from a standby state where the gas supply is cut off. The system requires the electromagnet to be forcibly activated by pressing and holding the gas supply button for a period of time (typically 1 to 5 seconds after ignition) until the thermocouple generates sufficient power to keep the electromagnet on without mechanical force.

[0008] Let's examine the operating principle of the standard gas control system.

[0009] The system comprises two components: a thermocouple and a solenoid valve. The solenoid valve is typically assembled within the same housing as the gas valve. The thermocouple acts as a generator. When heated, the thermocouple generates an electromotive force (EMF), which is relayed to the solenoid valve to keep it open. Gas is supplied to the burner through the open valve. If the flame goes out, the thermocouple needs some time to cool down and stop generating electricity. When the valve no longer receives a signal, it closes to cut off the gas supply to the burner. The drawback of this standard system is that while it guarantees redundancy for important flame safety control, it is irritating, requiring the consumer to hold the gas valve button for a period of time to allow the thermocouple to generate a signal sufficient to activate the solenoid. Furthermore, the system does not allow for easy adjustment and / or control of the flame. Essentially, for gas cooktops with control systems, the market tends to move away from solenoid / thermocouple systems and prefers the more expensive electric valve systems (i.e., systems with electronics and power supplies, as described in Russian Patent No. 2126935).

[0010] The claimed invention differs from the prior art, which is a form of standard system, because it operates on a different principle and eliminates the drawbacks of that standard system, namely, the need to maintain the gas valve button during ignition by having a power source and electronics that force the valve open until the thermocouple is heated (a drawback not present in the claimed invention). Solutions similar to the claimed invention have the disadvantages of requiring power, having electronic components, and therefore being more complex and less reliable.

[0011] The technical problem to be protected is improving the performance and availability of gas burners. The proposed solution is a gas burner structure that includes a highly efficient and fast safety flame control mechanism. This mechanism improves the reliability of flame control and avoids control components based on unreliable and relatively fragile electronic parts and dependent on power supplies (such as chromium-nickel-copper-nickel thermocouples and solenoid valves).

[0012] The desired protection results in improved gas burner safety, enhanced reliability and durability, and reduced reliance on electricity.

[0013] The result is achieved through a novel structure of a gas burner, comprising a housing, a distributor, a nozzle, a valve, and a temperature sensor. A piston rod, controlling the gas supply through the nozzle, is located on the central vertical axis of the burner. The distributor housing cylinder has an upper and lower partition, each with a central hole aligned with the burner's central axis. The piston rod is mounted in these holes, allowing it to move vertically along the vertical axis. An automatic safety device is located on the side protrusion of the lower partition, activating the temperature sensor, a flow sensor, and a spring lock, which is rotatable along the axis of the lower partition protrusion. The temperature sensor includes a metal portion fixed to the distributor housing and a thermal battery mounted on the same axis as the flow sensor. The piston rod is designed with a spring and a retaining ring, and the same piston rod has a circular groove at the level of the lock.

[0014] In an alternative embodiment of the invention, the nozzle has a spring valve and a piston rod spring mounted above the upper partition. The lock is essentially a plate with ends bent in opposite directions perpendicular to the plate. The flow sensor is a lightweight metal plate. The temperature sensor thermal unit is a bimetallic plate, wherein its metal portion is a plate with two bent ends, and its long portion is rigidly and detachably mounted horizontally to the distributor housing. The bent ends of the metal portion of the temperature sensor and the upper end of the temperature sensor thermal unit are rigidly and non-detachably connected to each other. In another alternative embodiment of the invention, the piston rod spring is positioned below the upper partition, and the piston rod has a seal.

[0015] the following Figures 1 to 6 Used to illustrate the essence of a technical solution.

[0016] Figure 1 This is the layout for a standard gas control system.

[0017] Figure 2 This is the layout for the standard furnace burner.

[0018] Figure 3 Layout of the gas burner for which protection is required.

[0019] Figure 4 Layout for automated safety mechanisms.

[0020] Figure 5 For nozzle layout.

[0021] Figure 6 Layout for a low-pressure gas burner in a circuit.

[0022] Where 1 is the burner casing,

[0023] 2 is the distributor.

[0024] 3 is the burner cover.

[0025] 4 is the nozzle.

[0026] 5 is the gas valve.

[0027] 6 is a solenoid.

[0028] 7 is a valve.

[0029] 8 is a thermocouple (flame sensor).

[0030] 9 is the temperature sensor (metal part).

[0031] 10 is a temperature sensor (thermal battery).

[0032] 11 is the flow sensor (air plate).

[0033] 12 is a lock.

[0034] 13 is the locking spring.

[0035] 14 is the piston rod.

[0036] 15 is the piston rod spring.

[0037] 16 is the nozzle valve.

[0038] 17 is the nozzle valve spring.

[0039] 18 is the retaining ring.

[0040] 19 is the piston rod seal.

[0041] 20 is the upper separator of the distributor.

[0042] 21 is the lower separator of the distributor.

[0043] 22 is the lock rotating shaft.

[0044] 23 is the rotating shaft of the flow sensor.

[0045] 24 is the nozzle valve seal.

[0046] 25 is the circular groove on the piston rod.

[0047] Example of an implementation.

[0048] To achieve the claimed technical effect, this specification provides a gas burner comprising a housing 1, a distributor 2, a nozzle 4, a valve 7, and temperature sensors 9 and 10. A piston rod 14 is located on the central vertical axis of the burner, which controls the gas supply through the nozzle 4. The distributor 2 housing cylinder has an upper partition 20 and a lower partition 21 inside, each partition having a central hole aligned with the central axis of the burner. The piston rod 14 is mounted in these holes in a manner that allows it to move up and down along the vertical axis. The side protrusion of the lower partition 21 has an automatic safety device for activating temperature sensors 9 and 10, a flow sensor 11, and a lock 12 with a spring 13, which is mounted to be rotatable along the axis 22 of the lower partition protrusion; the temperature sensor includes a metal part 9 fixed to the diffuser housing and a thermal battery 10 mounted on the same axis 23 as the flow sensor; the piston rod 14 is designed to have a spring 15 and a retaining ring 18, and the same piston rod 14 has a circular groove 25 at the level of the lock 12.

[0049] In an alternative embodiment of the invention, the nozzle 4 has a valve 16 with a seal 24 having a spring 17, and the spring 15 of the piston rod 14 is mounted above the upper separator 20. The lock 12 is essentially a plate with ends bent in the opposite direction perpendicular to the plate, serving as a lever arm. The flow sensor 11 is a lightweight metal plate. The temperature sensor thermal battery 10 is a bimetallic plate, wherein the metal portion 9 of the bimetallic plate is a plate with two bent ends, and the long portion of the plate is rigidly and detachably mounted horizontally to the diffuser 2 housing.

[0050] The bent end of the metal portion of temperature sensor 9 and the upper end of temperature sensor thermal battery 10 are rigidly and non-removably connected to each other. In another alternative embodiment of the invention, piston rod spring 15 is positioned below upper separator 20, and piston rod 14 has seal 19.

[0051] The structure to be protected differs from the standard gas burner safety system in that it features the following key upgraded components as described.

[0052] Distributor. The diameter of the inner cylinder of distributor 2 is slightly larger than that in the standard design. This is necessary to compensate for the reduced throughput, as the newly installed component partially obstructs the flow of the gas-air mixture. Unlike a standard distributor that is simply inserted into the burner housing 1, distributor 2 itself must be secured in the housing by any convenient means (screws, latches, hooks, etc.). Two partitions for securing the component are provided in the internal portion of distributor 2: an upper partition 20 and a lower partition 21, which are arranged horizontally and positioned 90 degrees relative to each other when viewed from above. The partitions are formed by casting during the manufacture of the distributor and form a single unit with the distributor, or they are manufactured separately and secured in the distributor housing by any suitable technical method. Each partition has a central hole that coincides with the vertical axis of the burner. A metal piston rod 14 is vertically mounted in these holes, and the metal piston rod 14 can move up and down in these holes. The piston rod 14 rests on the upper platform of the nozzle valve 16 with its lower end. The piston rod 14 is centered along the distributor axis. (Alternatively, if the diameter of the central portion of the distributor is small (which may be the case in low-power burners), the piston rod 14 may be off-center to facilitate positioning of the safety mechanism portion. In this case, a horizontal plate is mounted on the lower end of the piston rod 14, which presses against the nozzle valve 16.)

[0053] In the upper portion of the piston rod 14, a spring 15 is mounted between the upper separator 20 and the retaining ring 18 located at the very top of the piston rod 14. In the middle portion, the piston rod 14 has a circular groove 25 for the lock 12 at the level of its lower arm (bent end). The lock 12 is mounted on a shaft 22 on the lower separator 21 of the diffuser housing. This shaft is located approximately in the middle of the lock 12. The upper arm of the lock (above the shaft) bends away from the piston rod and has an additional protrusion closer to the piston rod. The lower arm bends toward the piston rod 14.

[0054] Through this protrusion, the lock 12 enters the circular groove 25 of the piston rod 14 and is held in this position by the spring 13. Thus, the lock 12 holds the piston rod 14 in the lower position. In the upper part of the diffuser 2, a temperature sensor (9, 10) is installed in a special recess. This temperature sensor consists of two parts: the metal part of the thermocouple 9 and the thermocouple 10 itself. These two parts are connected to each other (e.g., by spot welding). The thermocouple with the metal part 9 is rigidly and detachably fixed to the diffuser by thermal insulating washers (asbestos, paranoids, fiberglass cloth, etc.) (e.g., by one or two screws, depending on the design and size of the diffuser). The metal part of the thermocouple 9 is connected at one end to the second part (the thermocouple itself) 10, and the other end of the metal part of the thermocouple 9 is located in the flame region, its function being to transfer heat from the flame to the second part of the thermocouple 10. The second part of the temperature sensor-thermocouple 10 is a bimetallic plate. It is a component that can deform (bend) in one direction under the influence of increased temperature. The plate contains two metals, each with its own thermal expansion value. Therefore, when such a plate is heated, one part of the plate expands by a certain amount and the other part expands by another amount. This causes plate 10 to bend, with the degree of deformation proportional to the temperature change. When plate 10 cools, it returns to its original position. Plate 10 is an integral (rigid, non-removable) connection of two plates made of materials with different thermal expansion coefficients and is arranged such that when heated, the plate bends in the direction from piston rod 14 to the inner surface of the distributor wall. Such bimetallic components are durable and widely used in mechanics, measurement technology, or automation. In this case, when heated, the unfastened end of plate 10 moves in the direction from piston rod 14 toward the distributor wall, and when cooled, the unfastened end of plate 10 returns toward piston rod 14. A flow sensor 11 is mounted at the lower end of plate 10. This flow sensor 11 is a thin, lightweight metal plate (e.g., aluminum) horizontally mounted on the rotating shaft 23. A heat-resistant plastic or other sufficiently heat-resistant material can also be used. On one side of the rotating shaft 23 (closer to the piston rod 14), the flow sensor plate 11 has a relatively large area and low weight. On the other side of the rotating shaft 23, the flow sensor plate 11 has a smaller area but a larger weight, achieved by attaching a heavier metal (iron, etc.) to that side of the flow sensor plate 11. The flow sensor plate 11 is balanced such that the larger area is slightly heavier. When the gas is shut off, this side of the flow sensor plate 11 is lowered until it contacts the lower separator 21 of the distributor 2. When the burner is turned on, i.e., when the gas valve is open, the flow of the gas-air mixture lifts the flow sensor plate 11 upwards to the upper arm of the lock 12.

[0055] Nozzle. A standard nozzle is a metal (usually brass) part. The nozzle screws into the burner body. Gas is supplied to the nozzle from below through a supply pipe. At the top of the nozzle is an orifice of a certain diameter through which gas enters the burner. Modern nozzles include a metal housing 4 with the same shape and size as a standard nozzle, but with a larger diameter gas supply orifice. In this orifice, there is a valve 16 with the possibility of upward and downward movement. When the valve 16 moves upward, the lower part of the valve 16 (with a rubber valve seal 24) closes the airflow through the nozzle 4. A spring 17 is located at the top of the valve 16, holding the valve 16 in the upward closed position. The diameter of the valve stem 16 is smaller than the diameter of the orifice in the nozzle body 4. Therefore, a gap exists between the nozzle body 4 and the valve stem 16 through which the gas flows. The diameter of the valve stem 16 and the orifice in the nozzle body 4 are chosen such that the airflow through the nozzle body is the same as in a standard nozzle.

[0056] Operating Principle. In the initial position, the piston rod 14 of the distributor 2 is in the lower position. The lower end of the piston rod 14 presses against the nozzle valve. The valve 16 of the nozzle 4 is in the open position. When the burner is turned on, the gas supply is opened. The flow of the gas-air mixture lifts the flow sensor plate 11 and holds it in the raised position. The temperature sensor (plate 9) heats up, and after a few seconds, the sensor plate (to the left in the figure) bends. When the burner is turned off, the gas supply is turned off. The flow of the gas-air mixture stops. The flow sensor plate 11 returns to its initial position. The temperature sensor 9 cools down, and after a few seconds, the sensor plate (to the right according to the figure) bends back to its initial position. This process is repeated during subsequent opening and closing. Meanwhile, the lock, distributor, and nozzle valve remain in their initial positions. Their positions do not change during normal operation of the burner. That is, during normal operation of the gas burner, automation is in standby mode. No actuation occurs in the event of abnormal flameout. If the flame goes out for some reason, but the flow of the gas-air mixture continues, the flow sensor plate 11 remains in the upper position. Since there is no flame, the metal portion of the temperature sensor 9 cools, and after a few seconds, the sensor plate (to the right in the figure) bends. However, because the flow sensor plate 11 is in the upper position in this situation, it does not go under the bent end of the upper arm of the lock, but rests and presses against the protrusion of the upper arm of the lock. Therefore, the lock 12 pivots on its shaft 22, and the bent end of the lower arm of the lock 12 moves out of engagement with the circular groove 25 of the piston rod 14. The rod 14 is released and moves upward under the action of the spring 15, thus stopping its press against the nozzle valve 16. The valve 16 moves to the closed position under the action of its spring 17, and the airflow is cut off. After the user detects the absence of a flame, it is necessary to close the valve 5 supplying gas to the burner. To reactivate the system, the burner cover is lifted and the rod 14 of the diffuser 2 is pressed. Since there is no flow of the gas-air mixture, the flow sensor plate 11 is in the lower position and does not rest against the lock 12. Lock 12 operates under the action of its spring 13, causing its lower arm to enter the circular groove 25 of lever 14, and begins to hold lever 14 of distributor 2 in the lower position again. Therefore, nozzle valve 16 moves to the open position. The system is then ready to operate and enters standby mode until the next anomaly.

[0057] Another embodiment of the system design and operation is possible under low gas pressure (natural gas) in the system. In this embodiment, the design of the safety mechanism is not changed, except that the spring 15 of the piston rod 14 is not located on top of the upper separator 20 of the distributor 2, but at the bottom, and a rubber seal 19 is present at the lower end of the piston rod 14. This embodiment retains the standard nozzle 4, i.e., without the nozzle valve 16. In this case, the top of the nozzle has a gas outlet orifice of a certain diameter (e.g., 0.5 mm-1 mm). The entire operation of the automatic safety mechanism is similar to that described above. The difference is that when the safety system is triggered, the piston rod 14 moves downward instead of upward. When the rod moves downward, it engages the rubber seal 19 to close the orifice of the nozzle 4, and is held in this position by the spring of the rod 14. Thus, the gas supply through the nozzle 4 is stopped. In standby mode, the rod 14 rises, the orifice of the nozzle 4 opens, and the gas flow freely enters the burner. After system operation, shut off the gas supply using gas valve 5, lift burner cover 3, and raise (pull up) lever 14 until lock 12 is activated. At this point, lock 12 begins to hold lever 14 in the upper position. The nozzle orifice opens. Replace the burner cover. The burner is ready for operation again.

[0058] The design for which protection is sought has the following advantages.

[0059] Availability. One drawback of typical gas control systems is that the gas valve button needs to be pressed for a period of time when the burner is turned on, because the solenoid valve only begins to remain open after the thermocouple has been fully heated, which takes time. Therefore, the valve needs to be forcibly held in the open position by pressing the button. This drawback is avoided in the proposed design because the safety mechanism valve is in the open position during normal burner operation and does not affect operation.

[0060] Compared to standard gas control systems, this design offers greater reliability and durability. In standard systems, thermocouples and solenoid valves are actuated every time the burner is turned on. Each actuation involves mechanical movement of the valve elements, resulting in wear on these parts. In the proposed system, this does not occur under normal operating conditions. This design eliminates thermocouples and solenoid valves, and utilizes a simpler and more reliable standard gas valve without a solenoid valve. The nozzle valve is permanently in the open position. The lock and piston rod are also permanently in the same position. There is no mechanical movement and therefore no wear on these parts.

[0061] The thermocouples in these two designs operate differently. The thermocouple used in the standard system is positioned directly in the flame zone because it requires heating to relatively high temperatures (the tip of the control device reaches 800°C-1000°C, and often higher). Heating generates an EMF (electromagnetic flux), which keeps the gas solenoid valve open. Due to the high temperature, burnout occurs over time, leading to thermocouple breakage. The proposed system avoids this drawback because it uses a bimetallic strip, a simpler and more reliable device that does not require such high heating and is not positioned directly in the flame zone.

[0062] Cooktops without a gas control system are easy to upgrade. How to install a safety system on a cooktop without a gas control system.

[0063] For standard gas control systems: the cover and diffuser must be removed, followed by the top panel to access the gas valve. The gas valve must be replaced by the valve connected to the gas control valve. Depending on the design, the gas supply lines connecting the new valve, housing, and diffuser (if these do not have flame sensor mounting points), as well as the lines supplying gas from the new valve to the burner, may need to be replaced. The flame sensor must be installed and connected. For this, the top panel will have to be replaced, as it may not have space for the flame sensor. In other words, almost all the "internal parts" of the cooktop or panel are replaced. For example, modernizing a gas cooktop may require replacing up to 70% of the parts. Due to the extensive and complex installation work (several hours), modernization may cost more than a new cooktop, making it economically unreasonable.

[0064] For the system requiring protection: the burner cap and diffuser must be removed, or simply removed from the burner housing. Replace (if necessary) the nozzles installed in the burner housing (unscrew and screw in the new nozzles). Install the new diffuser (with a built-in safety mechanism). Place the burner cap on top (leaving the old one). All parts to be replaced are on the outside. No internal parts or components need to be replaced; that is, the internal components are accessible without disassembling the cooktop body. In this case, 10%-15% of these parts (nozzles and diffuser) are replaced. The entire operation takes several minutes.

[0065] The technical effect of the proposed solution is that by simplifying the automation of the safety mechanism, the reliability of the gas burner is improved, its dependence on electricity is reduced, and the safety and availability of the gas burner are enhanced.

[0066] The automatic gas supply shut-off mechanism required to protect against flame burnout can be used on any other household and industrial appliances (including heaters or water heaters) that operate on natural gas or liquefied gas.

Claims

1. A gas burner, characterized in that: The device includes a housing, a distributor, a nozzle, a valve, and a temperature sensor. The burner has a piston rod along its central vertical axis, which controls the gas supply through the nozzle. The distributor housing cylinder has an upper and a lower partition, each partition having a central hole aligned with the burner's central axis. The piston rod is mounted in these holes, allowing it to move vertically along the vertical axis. The lower partition has a side protrusion with an automatic safety device that activates the temperature sensor, a flow sensor, and a spring lock, which is rotatable along the axis of the lower partition protrusion. The temperature sensor includes a metal portion fixed to the distributor housing and a thermal battery mounted on the same axis as the flow sensor. The piston rod is designed with a spring and a retaining ring, and the same piston rod has a circular groove at the level of the lock.

2. The gas burner according to claim 1, characterized in that, The nozzle has a spring valve and a piston rod spring mounted above the upper separator.

3. The gas burner according to claim 1, characterized in that, The lock is essentially a plate having an end that is bent in the opposite direction perpendicular to the plate.

4. The gas burner according to claim 1, characterized in that, The flow sensor is a lightweight metal plate.

5. The gas burner according to claim 1, characterized in that, The thermal battery of the temperature sensor is a bimetallic plate.

6. The gas burner according to claim 1, characterized in that, The metal portion of the temperature sensor is a plate with two bent ends, and the long portion of the plate is rigidly and detachably mounted horizontally to the diffuser housing.

7. The gas burner according to claim 1, characterized in that, The bent end of the metal portion of the temperature sensor and the upper end of the thermal battery of the temperature sensor are rigidly and non-detachably connected to each other.

8. The gas burner according to claim 1, characterized in that, The piston rod spring is positioned below the upper separator, and the piston rod has a seal.

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