EP2657602B1 - Gas stove and gas flow control device thereof - Google Patents
Gas stove and gas flow control device thereof Download PDFInfo
- Publication number
- EP2657602B1 EP2657602B1 EP13164292.8A EP13164292A EP2657602B1 EP 2657602 B1 EP2657602 B1 EP 2657602B1 EP 13164292 A EP13164292 A EP 13164292A EP 2657602 B1 EP2657602 B1 EP 2657602B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- gas
- gas flow
- flow control
- control device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000009021 linear effect Effects 0.000 claims description 28
- 239000007789 gas Substances 0.000 description 235
- 238000006243 chemical reaction Methods 0.000 description 31
- 230000001276 controlling effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/007—Regulating fuel supply using mechanical means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K2900/00—Special features of, or arrangements for fuel supplies
- F23K2900/05002—Valves for gaseous fuel supply lines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2235/00—Valves, nozzles or pumps
- F23N2235/12—Fuel valves
- F23N2235/16—Fuel valves variable flow or proportional valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2235/00—Valves, nozzles or pumps
- F23N2235/12—Fuel valves
- F23N2235/18—Groups of two or more valves
Definitions
- the present invention relates to the field of gas stoves, and more particularly to the technical field of gas flow control of a gas stove.
- Gas stoves are household cookers commonly used in people's daily life, and mainly use liquefied flammable gas as fuel for burning.
- the gas stoves can be classified into multiple types, such as liquefied gas stoves, coal gas stoves, and natural gas stoves.
- Gas stoves may also be classified according to their structure into single gas stoves, double gas stoves, single-burner gas stoves, multiple-burner gas stoves, table gas stoves, and embedded gas stoves.
- the gas stoves can be classified into mechanically controlled gas stoves and electronically controlled gas stoves.
- the electronically controlled gas stove is a new type of gas stove. As increasingly more electronically controlled gas stoves are used, people pay increasingly much attention to the problems of the electronically controlled gas stove.
- One issue is that the existing electronically controlled gas stoves use a plug valve to control the gas flow.
- a structure of a typical plug valve is shown in FIG. 6 .
- the size of the plug valve is small, and the number and the size of holes opened on a valve core are limited, so it may, in some instances, be difficult to implement fine tuning and to smoothly regulate the gas flow.
- GB 2 326 697 A describes a valve assembly for controlling the flow of flammable gas to a burner, comprising a body having a passageway for flow of gas from an inlet and a valve having a valve seat and a closure which valve is positioned between first and second outlet channels from the passageway wherein the first and second channels are axially separated along the passageway such that axial movement of the closure along the passageway effects opening and closing of the valves.
- WO 01/90649 A1 describes a linear action gas control valve e.g. for use with a domestic gas fire. Simple construction and smooth variation of main burner level are achieved by incorporating a sleeve valve design where an elongate member may gradually increase the effective passage for gas from a gas supply to a main burner. In one end position of the elongate member, gas supply to a pilot flame may be cut off, while in an opposite end position, a main gas flow valve, e.g. operated by a solenoid, may be opened.
- a main gas flow valve e.g. operated by a solenoid
- US 2010/0178623 A1 describes a gas switch capable of adjusting fire intensity finely including a gas switch capable of adjusting fire intensity finely, comprising a switch body inside which a guide is installed, a fastener set that revolves inside the switch body and includes a hollow fastener and a fastener rod moving elastically through the faster, a drive component installed inside the switch body, which contains a rotating rod that can move along and rotate round the same shaft of the fastener set, a guide rod placed on the rotating rod and leaning on the guide, a regulating block installed movably at one end of the rotating rod and leaning against the fastener rod, and a connecting component for linking the drive component with the fastener set flexibly.
- the main objective of the present invention is to provide a gas flow control device applicable to an electronically controlled gas stove.
- a gas flow control device according to claim 1 is provided.
- the dependent claims describe further embodiments and features.
- a gas flow control device for a gas stove includes: a driving device, a valve body, a first valve rod, a second valve rod, a first valve core, a second valve core, a first reset device, and a second reset device, where the valve body includes a gas inlet, a first gas outlet, and a second gas outlet; when the gas flow control device is in a turn-off state, the first valve core is held against an inner wall of the valve body under the action of the first reset device, to close a gas flow passage through which gas flowing from the gas inlet flows to the first gas outlet, and meanwhile, the second valve core is also held against the inner wall of the valve body under the action of the second reset device, to close a gas flow passage through which gas flowing from the gas inlet flows to the second gas outlet; the driving device is used for directly or indirectly driving the first valve rod to move, and the first valve rod further drives the first valve core to move, to open the gas flow passage through which gas flowing from the gas inlet flows to the first gas outlet; and the driving device is further
- the driving device is a linear motor.
- the driving device includes a motor and a conversion device; and the conversion device is used for converting rotational motion of the motor into linear motion, to directly drive the first valve rod and/or the second valve rod to make linear motion.
- the motor includes a shaft rod; the conversion device includes a gear wheel and a gear rack engaged with each other; the gear wheel is connected to the shaft rod; and the gear rack is connected to the first valve rod and/or the second valve rod.
- the motor includes a shaft rod; the conversion device includes a cam; and the cam is connected to the shaft rod.
- a guide rail portion is disposed on a side wall of the cam surrounding the shaft rod; and a side end of the first valve rod and/or the second valve rod is held against a bottom wall of the guide rail portion.
- a projection of the bottom wall of the guide rail portion on a plane vertical to the shaft rod is at least partially of a logarithmic spiral structure or a circular arc structure.
- the projection is of the logarithmic spiral structure, an excellent effect of smoothly regulating the gas flow can be achieved.
- the cam is an eccentric wheel.
- the driving device is further used for directly or indirectly controlling a motion range of the first valve rod, to control an open degree of the gas flow passage through which gas flowing from the gas inlet flows to the first gas outlet; and the driving device is further used for directly or indirectly controlling a motion range of the second valve rod, to control an open degree of the gas flow passage through which gas flowing from the gas inlet flows to the second gas outlet.
- a better effect of smoothly regulating the gas flow can be achieved.
- the first reset device includes an elastic component and a stop portion, and the stop portion is disposed on the inner wall of the valve body; and the stop portion is used for stopping the elastic component.
- the first valve core is of a truncated cone structure, where the truncated cone is disposed with a tangent plane parallel to an axis of the truncated cone and intersecting with a lower bottom surface and a side surface of the truncated cone.
- the tangent plane is disposed to provide a guide rail for reciprocating motion of the first valve core, thereby facilitating improvement of the stability of motion of the first valve rod and the first valve core.
- the first valve rod is connected and fixed to an upper bottom surface of the truncated cone
- the second valve rod is connected and fixed to the lower bottom surface of the truncated cone
- the first reset device is held against the lower bottom surface of the truncated cone.
- the first valve core drives the second valve rod
- the second valve rod further drives the second valve core to move, to open the gas flow passage through which gas flowing from the gas inlet flows to the second gas outlet.
- the driving device indirectly drives the second valve rod to move.
- the gas flow control device is further disposed with a third valve rod, a third valve core, and a third reset device; the valve body further includes a third gas outlet; when the gas flow control device is in the turn-off state, the third valve core is held against the inner wall of the valve body under the action of the third reset device, to close a gas flow passage through which gas flowing from the gas inlet flows to the third gas outlet; and the driving device is used for directly or indirectly driving the third valve rod to move, and the third valve rod further drives the third valve core to move, to open the gas flow passage through which gas flowing from the gas inlet flows to the third gas outlet.
- the first gas outlet is used for supplying gas to an inner-ring fire cover; the second gas outlet is used for supplying gas to an outer-ring fire cover.
- the driving device is used for directly or indirectly driving the first valve rod to make linear motion, and the first valve rod further drives the first valve core to move, to open the gas flow passage through which gas flowing from the gas inlet flows to the first gas outlet; and the driving device is used for directly or indirectly driving the second valve rod to make linear motion, and the second valve rod further drives the second valve core to move, to open the gas flow passage through which gas flowing from the gas inlet flows to the second gas outlet.
- the conversion device comprises a crank slide block.
- first valve rod and the second valve rod are connected to each other; and the conversion device is used for directly driving the first valve rod and the second valve rod to make linear motion together.
- first valve rod and the second valve rod are of an integral structure.
- the conversion device includes a first conversion device and a second conversion device; the first conversion device is used for converting rotational motion of the motor into linear motion, to directly drive the first valve rod to make linear motion; and the second conversion device is used for converting rotational motion of the motor into linear motion, to directly drive the second valve rod to make linear motion.
- the conversion device comprises a screw and a nut.
- first valve rod and the second valve rod are connected to each other; and the driving device is used for directly driving the first valve rod and the second valve rod to make linear motion together.
- the second valve core is of a truncated cone structure or a cone structure.
- the present invention further provides a gas stove, disposed with the gas flow control device according to any one of the foregoing gas flow control devices.
- a new gas flow control solution different from the existing plug valve is adopted, so the disadvantages of the plug valve that fine tuning is not easy and it is difficult to smoothly regulate the gas flow can be fundamentally overcome.
- the gas flow control device includes a driving device, a valve body 1, a first valve rod 2, a second valve rod 3, a first valve core 4, a second valve core 5, a first reset device 6, and a second reset device 7.
- the valve body 1 includes a gas inlet 8, a first gas outlet 9, and a second gas outlet 10.
- the first gas outlet 9 is used for supplying gas to an inner-ring fire cover; the second gas outlet 10 is used for supplying gas to an outer-ring fire cover.
- the driving device includes a motor 11 and a conversion device.
- the motor 11 includes a shaft rod 12.
- the conversion device includes a gear wheel 13 and a gear rack 14 engaged with each other.
- the gear wheel 13 is connected to the shaft rod 12.
- the gear rack 14 is connected to the first valve rod 2.
- the conversion device is used for converting rotational motion of the motor 11 into linear motion, to directly drive the first valve rod 2 to make linear motion.
- the first valve core 4 is of a truncated cone structure.
- the truncated cone is disposed with two tangent planes 17 (see fig. 3 ).
- the two tangent planes 17 are both parallel to an axis of the truncated cone, intersect with a lower bottom surface and a side surface of the truncated cone, and are parallel to each other, as shown in FIG. 3 .
- the first valve rod 2 is connected and fixed to an upper bottom surface of the truncated cone structure of the first valve core 4, and the second valve rod 3 is connected and fixed to the lower bottom surface of the truncated cone structure of the first valve core 4.
- the first reset device 6 is held against the lower bottom surface of the truncated cone structure of the first valve core 4.
- the first reset device 6 includes a spring and a stop portion 18.
- the stop portion 18 is disposed on an inner wall of the valve body 1.
- the stop portion 18 is used for stopping the spring.
- One end of the spring is held against the stop portion 18, and the other end of the spring is held against the lower bottom surface of the truncated cone structure of the first valve core 4.
- the second valve core 5 is also of a truncated cone structure.
- the truncated cone is also disposed with two tangent planes 17.
- the two tangent planes 17 are both parallel to an axis of the truncated cone, intersect with a lower bottom surface and a side surface of the truncated cone, and are parallel to each other.
- the second reset device 7 includes a spring. One end of the spring is held against the inner wall of the valve body 1, and the other end of the spring is held against the lower bottom surface of the truncated cone structure of the second valve core 5.
- the first valve core 4 is held against the inner wall of the valve body 1 under the action of the first reset device 6, to close a gas flow passage through which gas flowing from the gas inlet 8 flows to the first gas outlet 9, and meanwhile, the second valve core 5 is also held against the inner wall of the valve body 1 under the action of the second reset device 7, to close a gas flow passage through which gas flowing from the gas inlet 8 flows to the second gas outlet 10.
- the driving device is used for directly driving the first valve rod 2 to move, and the first valve rod 2 further drives the first valve core 4 to move, to open the gas flow passage through which gas flowing from the gas inlet 8 flows to the first gas outlet 9.
- the shaft rod 12 rotates to drive the gear wheel 13 to rotate, the gear wheel 13 further drives the gear rack 14 to move, and the gear rack 14 further drives the first valve rod 2 to move.
- the first valve rod 2 is partially placed in the valve body 1, and under the restriction of the valve body 1, the first valve rod 2 can only make linear motion.
- the driving device is further used for indirectly driving the second valve rod 3 to move, and the second valve rod 3 further drives the second valve core 5 to move, to open the gas flow passage through which gas flowing from the gas inlet 8 flows to the second gas outlet 10.
- the first valve core 4 moves to a certain degree
- the first valve core 4 drives the second valve rod 3
- the second valve rod 3 further drives the second valve core 5 to move, to open the gas flow passage through which gas flowing from the gas inlet 8 flows to the second gas outlet 10.
- the gas flow passage through which gas flowing from the gas inlet 8 flows to the first gas outlet 9 and the gas flow passage through which gas flowing from the gas inlet 8 flows to the second gas outlet 10 intersect.
- the driving device is further used for controlling a motion range of the first valve rod 2, to control an open degree of the gas flow passage through which gas flowing from the gas inlet 8 flows to the first gas outlet 9, so as to generate different levels.
- the driving device is further used for controlling a motion range of the second valve rod 3, to control an open degree of the gas flow passage through which gas flowing from the gas inlet 8 flows to the second gas outlet 10, so as to generate different levels.
- the driving device may also be directly a linear motor. In this way, the conversion device is no longer required.
- the conversion device may also be a crack slide block.
- the first gas outlet is used for supplying gas to the outer-ring fire cover; the second gas outlet is used for supplying gas to the inner-ring fire cover.
- the second valve rod may also be connected and fixed to the upper bottom surface of the truncated cone structure of the second valve core and not connected to the first valve core.
- a certain angle may also exist between the two tangent planes.
- a rubber ring or another seal part may also be mounted in a portion of the valve body fitted with the valve core for seal, or materials of the first valve core and the second valve core are rubber or other materials with a good sealing property, or a rubber ring is mounted on outer surfaces of the first valve core and the second valve core.
- the present invention further provides an embodiment of another gas flow control device for a gas stove, which is obtained by making further improvement on the basis of Embodiment A.
- Embodiment B and Embodiment A lies in different structures of the conversion device.
- FIG. 4 is a schematic view showing a fitting relationship between the conversion device and the first valve rod 2 of this embodiment.
- a driving device of the embodiment of the gas flow control device for a gas stove includes a motor 11 and a conversion device.
- the motor 11 includes a shaft rod 12.
- the conversion device includes a cam 15.
- the cam 15 is connected to the shaft rod 12.
- a guide rail portion 16 is disposed on a side wall of the cam 15 surrounding the shaft rod 12.
- a projection of a bottom wall 19 of the guide rail portion 16 on a plane vertical to the shaft rod 12 is of a logarithmic spiral structure.
- the side wall of the cam 15 has a groove 16 for guiding the shaft rod 2.
- the groove 16 may have a spiral shape, in particular a logarithmic spiral shape. Under the action of the first reset device 6, a side end of the first valve rod 2 is always held against the bottom wall 19 of the guide rail portion 16.
- the conversion device is used for converting rotational motion of the motor 11 into linear motion, to directly drive the first valve rod 2 to make linear motion. Specifically, distances from points on the bottom wall 19 of the guide rail portion 16 to the shaft rod 12 are different and change gradually, so when the motor 11 rotates, the shaft rod 12 drives the cam 15 to rotate, so that the first valve rod 2 moves.
- the cam may also be an eccentric wheel.
- the side end of the first valve rod may also be not held against the bottom wall of the guide rail portion.
- the present invention further provides an embodiment of another gas flow control device for a gas stove, which is obtained by making further improvement on the basis of Embodiment B.
- Embodiment C The main difference between Embodiment C and Embodiment B lies in that, in Embodiment B, the driving device directly drives the first valve rod 2 to move and indirectly drives the second valve rod 3 to move; while in this embodiment, the driving device directly drives the first valve rod 2 and the second valve rod 3 to move.
- FIG. 5 is a schematic view showing a fitting relationship between the conversion device and the first valve rod 2 and the second valve rod 3 of this embodiment.
- the structural features of this embodiment same as those in Embodiment B are not described herein again and reference may be made to the corresponding description in Embodiment B.
- the first valve rod 2 and the second valve rod 3 are of an integral structure and are totally fork-shaped. A common end of the first valve rod 2 and the second valve rod 3 is always held against the bottom wall 19 of the guide rail portion 16.
- the first valve rod 2 is connected to a first valve core 4 and the second valve rod 3 is not connected to the second valve core 5.
- the conversion device is used for converting rotational motion of the motor 11 into linear motion, to directly drive the first valve rod 2 and second valve rod 3 to make linear motion. Specifically, after the motor is started, the shaft rod 12 rotates to drives the first valve rod 2 and second valve rod 3 to move, and the first valve rod 2 drives the first valve core 4 to move, so as to open the gas flow passage through which gas flowing from the gas inlet 8 flows to the first gas outlet 9.
- the motor 11 continuously rotates, when an open degree of the gas flow passage through which gas flowing from the gas inlet 8 flows to the first gas outlet 9 is gradually increased to a certain degree, the second valve rod 3 touches the second valve core 5 and pushes the second valve core 5 to move, so as to open the gas flow passage through which gas flowing from the gas inlet 8 flows to the second gas outlet 10.
- the present invention further provides an embodiment of another gas flow control device for a gas stove, which is obtained by making further improvement on the basis of Embodiment A.
- Embodiment D includes two functional modules separated from each other and used for converting rotational motion of a motor into linear motion, and Embodiment A includes only one functional module of such a type.
- this embodiment includes two functional modules separated from each other and used for converting rotational motion of a motor into linear motion, and Embodiment A includes only one functional module of such a type.
- the conversion device of this embodiment includes a first conversion device and a second conversion device.
- the first conversion device is used for converting rotational motion of the motor into linear motion, to directly drive the first valve rod to make linear motion.
- the second conversion device is used for converting rotational motion of the motor into linear motion, to directly drive the second valve rod to make linear motion.
- the present invention further provides an embodiment of a gas stove, disposed with the gas flow control device according to any one of Embodiment A to Embodiment D.
- a gas stove disposed with the gas flow control device according to any one of Embodiment A to Embodiment D.
- the structural features of the gas flow control device are not described herein again and reference may be made to the corresponding description and accompanying drawings in Embodiment A to Embodiment D.
- the embodiment of the gas stove is further disposed with a self-priming electromagnetic valve.
- the self-priming electromagnetic valve closes a gas flow passage through which gas flows to the gas inlet 8.
- a control module of the gas stove supplies power to the self-priming electromagnetic valve and the self-priming electromagnetic valve acts to open the gas flow passage through which gas flows to the gas inlet 8.
- a thermoelectric couple of the gas stove supplies power to the self-priming electromagnetic valve so that the gas flow passage through which gas flows to the gas inlet 8 is kept in an open state.
- the self-priming electromagnetic valve closes the gas flow passage through which gas flows to the gas inlet 8 due to loss of power supply.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanically-Actuated Valves (AREA)
- Feeding And Controlling Fuel (AREA)
Description
- The present invention relates to the field of gas stoves, and more particularly to the technical field of gas flow control of a gas stove.
- Gas stoves are household cookers commonly used in people's daily life, and mainly use liquefied flammable gas as fuel for burning. According to the different types of the liquefied flammable gas, the gas stoves can be classified into multiple types, such as liquefied gas stoves, coal gas stoves, and natural gas stoves. Gas stoves may also be classified according to their structure into single gas stoves, double gas stoves, single-burner gas stoves, multiple-burner gas stoves, table gas stoves, and embedded gas stoves. Moreover, according to their different gas control structures, the gas stoves can be classified into mechanically controlled gas stoves and electronically controlled gas stoves.
- Compared with the mechanically controlled gas stove, the electronically controlled gas stove is a new type of gas stove. As increasingly more electronically controlled gas stoves are used, people pay increasingly much attention to the problems of the electronically controlled gas stove. One issue is that the existing electronically controlled gas stoves use a plug valve to control the gas flow. A structure of a typical plug valve is shown in
FIG. 6 . However, the size of the plug valve is small, and the number and the size of holes opened on a valve core are limited, so it may, in some instances, be difficult to implement fine tuning and to smoothly regulate the gas flow. -
GB 2 326 697 A -
WO 01/90649 A1 -
US 2010/0178623 A1 describes a gas switch capable of adjusting fire intensity finely including a gas switch capable of adjusting fire intensity finely, comprising a switch body inside which a guide is installed, a fastener set that revolves inside the switch body and includes a hollow fastener and a fastener rod moving elastically through the faster, a drive component installed inside the switch body, which contains a rotating rod that can move along and rotate round the same shaft of the fastener set, a guide rod placed on the rotating rod and leaning on the guide, a regulating block installed movably at one end of the rotating rod and leaning against the fastener rod, and a connecting component for linking the drive component with the fastener set flexibly. - In view of the foregoing, the main objective of the present invention is to provide a gas flow control device applicable to an electronically controlled gas stove.
- A gas flow control device according to claim 1 is provided. The dependent claims describe further embodiments and features.
- A gas flow control device for a gas stove includes: a driving device, a valve body, a first valve rod, a second valve rod, a first valve core, a second valve core, a first reset device, and a second reset device, where the valve body includes a gas inlet, a first gas outlet, and a second gas outlet; when the gas flow control device is in a turn-off state, the first valve core is held against an inner wall of the valve body under the action of the first reset device, to close a gas flow passage through which gas flowing from the gas inlet flows to the first gas outlet, and meanwhile, the second valve core is also held against the inner wall of the valve body under the action of the second reset device, to close a gas flow passage through which gas flowing from the gas inlet flows to the second gas outlet; the driving device is used for directly or indirectly driving the first valve rod to move, and the first valve rod further drives the first valve core to move, to open the gas flow passage through which gas flowing from the gas inlet flows to the first gas outlet; and the driving device is further used for directly or indirectly driving the second valve rod to move, and the second valve rod further drives the second valve core to move, to open the gas flow passage through which gas flowing from the gas inlet flows to the second gas outlet. The foregoing technical solution is a new gas flow control solution different from the existing plug valve and can fundamentally overcome the disadvantages of the plug valve that fine tuning is not easy and it is difficult to smoothly regulate the gas flow.
- Optionally, the driving device is a linear motor.
- Optionally, the driving device includes a motor and a conversion device; and the conversion device is used for converting rotational motion of the motor into linear motion, to directly drive the first valve rod and/or the second valve rod to make linear motion.
- Optionally, the motor includes a shaft rod; the conversion device includes a gear wheel and a gear rack engaged with each other; the gear wheel is connected to the shaft rod; and the gear rack is connected to the first valve rod and/or the second valve rod.
- Optionally, the motor includes a shaft rod; the conversion device includes a cam; and the cam is connected to the shaft rod.
- Optionally, a guide rail portion is disposed on a side wall of the cam surrounding the shaft rod; and a side end of the first valve rod and/or the second valve rod is held against a bottom wall of the guide rail portion.
- Optionally, a projection of the bottom wall of the guide rail portion on a plane vertical to the shaft rod is at least partially of a logarithmic spiral structure or a circular arc structure. Especially, when the projection is of the logarithmic spiral structure, an excellent effect of smoothly regulating the gas flow can be achieved.
- Optionally, the cam is an eccentric wheel.
- Optionally, the driving device is further used for directly or indirectly controlling a motion range of the first valve rod, to control an open degree of the gas flow passage through which gas flowing from the gas inlet flows to the first gas outlet; and the driving device is further used for directly or indirectly controlling a motion range of the second valve rod, to control an open degree of the gas flow passage through which gas flowing from the gas inlet flows to the second gas outlet. In this way, a better effect of smoothly regulating the gas flow can be achieved.
- Optionally, the first reset device includes an elastic component and a stop portion, and the stop portion is disposed on the inner wall of the valve body; and the stop portion is used for stopping the elastic component.
- Optionally, the first valve core is of a truncated cone structure, where the truncated cone is disposed with a tangent plane parallel to an axis of the truncated cone and intersecting with a lower bottom surface and a side surface of the truncated cone. The tangent plane is disposed to provide a guide rail for reciprocating motion of the first valve core, thereby facilitating improvement of the stability of motion of the first valve rod and the first valve core.
- Optionally, the first valve rod is connected and fixed to an upper bottom surface of the truncated cone, the second valve rod is connected and fixed to the lower bottom surface of the truncated cone, and the first reset device is held against the lower bottom surface of the truncated cone.
- Optionally, when the first valve core moves to a certain degree, the first valve core drives the second valve rod, and the second valve rod further drives the second valve core to move, to open the gas flow passage through which gas flowing from the gas inlet flows to the second gas outlet. In this way, it is conveniently implemented that the driving device indirectly drives the second valve rod to move.
- Optionally, the gas flow control device is further disposed with a third valve rod, a third valve core, and a third reset device; the valve body further includes a third gas outlet; when the gas flow control device is in the turn-off state, the third valve core is held against the inner wall of the valve body under the action of the third reset device, to close a gas flow passage through which gas flowing from the gas inlet flows to the third gas outlet; and the driving device is used for directly or indirectly driving the third valve rod to move, and the third valve rod further drives the third valve core to move, to open the gas flow passage through which gas flowing from the gas inlet flows to the third gas outlet.
- Optionally, the first gas outlet is used for supplying gas to an inner-ring fire cover; the second gas outlet is used for supplying gas to an outer-ring fire cover.
- Optionally, the driving device is used for directly or indirectly driving the first valve rod to make linear motion, and the first valve rod further drives the first valve core to move, to open the gas flow passage through which gas flowing from the gas inlet flows to the first gas outlet; and the driving device is used for directly or indirectly driving the second valve rod to make linear motion, and the second valve rod further drives the second valve core to move, to open the gas flow passage through which gas flowing from the gas inlet flows to the second gas outlet.
- Optionally, the conversion device comprises a crank slide block.
- Optionally, the first valve rod and the second valve rod are connected to each other; and the conversion device is used for directly driving the first valve rod and the second valve rod to make linear motion together.
- Optionally, the first valve rod and the second valve rod are of an integral structure.
- Optionally, the conversion device includes a first conversion device and a second conversion device; the first conversion device is used for converting rotational motion of the motor into linear motion, to directly drive the first valve rod to make linear motion; and the second conversion device is used for converting rotational motion of the motor into linear motion, to directly drive the second valve rod to make linear motion.
- Optionally, the conversion device comprises a screw and a nut.
- Optionally, the first valve rod and the second valve rod are connected to each other; and the driving device is used for directly driving the first valve rod and the second valve rod to make linear motion together.
- Optionally, the second valve core is of a truncated cone structure or a cone structure.
- The present invention further provides a gas stove, disposed with the gas flow control device according to any one of the foregoing gas flow control devices. A new gas flow control solution different from the existing plug valve is adopted, so the disadvantages of the plug valve that fine tuning is not easy and it is difficult to smoothly regulate the gas flow can be fundamentally overcome.
- The summary of the present invention is not intended to describe all possible implementation manners of the present invention. In the whole application, guidance is provided through examples, and the examples can be used in any feasible combination.
- The accompanying drawings are merely provided to exemplarily illustrate and explain the present invention, but not limit the scope of the present invention, wherein:
-
FIG. 1 is a schematic structural view of a gas flow control device for a gas stove according to Embodiment A of the present invention; -
FIG. 2 is another schematic structural view of the gas flow control device for a gas stove according to Embodiment A of the present invention; -
FIG. 3 is a schematic structural view of a first valve core of the gas flow control device for a gas stove according to Embodiment A of the present invention; -
FIG. 4 is a schematic view showing a fitting relationship between a conversion device and a first valve rod of a gas flow control device for a gas stove according to Embodiment B of the present invention; -
FIG. 5 is a schematic view showing a fitting relationship between a conversion device and a first valve rod and a second valve rod of a gas flow control device for a gas stove according to Embodiment C of the present invention; and -
FIG. 6 is a schematic structural view of an existing plug valve. - Same reference numerals refer to same or functionally equivalent elements unless indicated otherwise. Meanings of the reference numerals:
1: valve body; 2: first valve rod; 3: second valve rod; 4: first valve core; 5: second valve core; 6: first reset device; 7: second reset device; 8: gas inlet; 9: first gas outlet; 10: second gas outlet; 11: motor; 12: shaft rod; 13: gear wheel; 14: gear rack; 15: cam; 16: guide rail portion; 17: tangent plane; 18: stop portion; 19: bottom wall of the guide rail portion. - To make the objectives, solutions and beneficial effects of the present invention clearer, the present invention is further illustrated with reference to the accompanying drawings and exemplary embodiments. It should be first noted that, the same or similar features have the same reference numerals in the accompanying drawings in specific description of exemplary implementation manners in the following.
- An embodiment of a gas flow control device for a gas stove provided by the present invention is shown in
FIG. 1 and FIG. 2 (in the figures, the shadow part is a section). The gas flow control device includes a driving device, a valve body 1, a first valve rod 2, a second valve rod 3, afirst valve core 4, a second valve core 5, a first reset device 6, and a second reset device 7. The valve body 1 includes a gas inlet 8, a first gas outlet 9, and asecond gas outlet 10. The first gas outlet 9 is used for supplying gas to an inner-ring fire cover; thesecond gas outlet 10 is used for supplying gas to an outer-ring fire cover. The driving device includes amotor 11 and a conversion device. Themotor 11 includes ashaft rod 12. The conversion device includes agear wheel 13 and agear rack 14 engaged with each other. Thegear wheel 13 is connected to theshaft rod 12. Thegear rack 14 is connected to the first valve rod 2. The conversion device is used for converting rotational motion of themotor 11 into linear motion, to directly drive the first valve rod 2 to make linear motion. Thefirst valve core 4 is of a truncated cone structure. The truncated cone is disposed with two tangent planes 17 (seefig. 3 ). The twotangent planes 17 are both parallel to an axis of the truncated cone, intersect with a lower bottom surface and a side surface of the truncated cone, and are parallel to each other, as shown inFIG. 3 . The first valve rod 2 is connected and fixed to an upper bottom surface of the truncated cone structure of thefirst valve core 4, and the second valve rod 3 is connected and fixed to the lower bottom surface of the truncated cone structure of thefirst valve core 4. The first reset device 6 is held against the lower bottom surface of the truncated cone structure of thefirst valve core 4. Specifically, the first reset device 6 includes a spring and a stop portion 18. The stop portion 18 is disposed on an inner wall of the valve body 1. The stop portion 18 is used for stopping the spring. One end of the spring is held against the stop portion 18, and the other end of the spring is held against the lower bottom surface of the truncated cone structure of thefirst valve core 4. The second valve core 5 is also of a truncated cone structure. The truncated cone is also disposed with twotangent planes 17. The twotangent planes 17 are both parallel to an axis of the truncated cone, intersect with a lower bottom surface and a side surface of the truncated cone, and are parallel to each other. Specifically, the second reset device 7 includes a spring. One end of the spring is held against the inner wall of the valve body 1, and the other end of the spring is held against the lower bottom surface of the truncated cone structure of the second valve core 5. - When the gas flow control device is in a turn-off state (that is, the gas stove is in a turn-off state), the
first valve core 4 is held against the inner wall of the valve body 1 under the action of the first reset device 6, to close a gas flow passage through which gas flowing from the gas inlet 8 flows to the first gas outlet 9, and meanwhile, the second valve core 5 is also held against the inner wall of the valve body 1 under the action of the second reset device 7, to close a gas flow passage through which gas flowing from the gas inlet 8 flows to thesecond gas outlet 10. The driving device is used for directly driving the first valve rod 2 to move, and the first valve rod 2 further drives thefirst valve core 4 to move, to open the gas flow passage through which gas flowing from the gas inlet 8 flows to the first gas outlet 9. Specifically, after themotor 11 is started, theshaft rod 12 rotates to drive thegear wheel 13 to rotate, thegear wheel 13 further drives thegear rack 14 to move, and thegear rack 14 further drives the first valve rod 2 to move. The first valve rod 2 is partially placed in the valve body 1, and under the restriction of the valve body 1, the first valve rod 2 can only make linear motion. - Moreover, the driving device is further used for indirectly driving the second valve rod 3 to move, and the second valve rod 3 further drives the second valve core 5 to move, to open the gas flow passage through which gas flowing from the gas inlet 8 flows to the
second gas outlet 10. Specifically, when thefirst valve core 4 moves to a certain degree, thefirst valve core 4 drives the second valve rod 3, and the second valve rod 3 further drives the second valve core 5 to move, to open the gas flow passage through which gas flowing from the gas inlet 8 flows to thesecond gas outlet 10. Here, it should be noted that, the gas flow passage through which gas flowing from the gas inlet 8 flows to the first gas outlet 9 and the gas flow passage through which gas flowing from the gas inlet 8 flows to thesecond gas outlet 10 intersect. When the gas flow passage through which gas flowing from the gas inlet 8 flows to the first gas outlet 9 is closed, no matter whether the second valve core 5 is held against the inner wall of the valve body 1 (it is only a hypothesis, and in this embodiment, when the gas flow passage through which gas flowing from the gas inlet 8 flows to the first gas outlet 9 is closed, the second valve core 5 is held against the inner wall of the valve body 1), the gas flow passage through which gas flowing from the gas inlet 8 flows to thesecond gas outlet 10 is also closed; only when the gas flow passage through which gas flowing from the gas inlet 8 flows to the first gas outlet 9 is opened, the second valve core 5 can control the gas flow passage through which gas flowing from the gas inlet 8 flows to thesecond gas outlet 10. - Moreover, the driving device is further used for controlling a motion range of the first valve rod 2, to control an open degree of the gas flow passage through which gas flowing from the gas inlet 8 flows to the first gas outlet 9, so as to generate different levels. In addition, the driving device is further used for controlling a motion range of the second valve rod 3, to control an open degree of the gas flow passage through which gas flowing from the gas inlet 8 flows to the
second gas outlet 10, so as to generate different levels. - The foregoing is only the exemplary embodiment of the present invention and other embodiments may be obtained by modifying, replacing, or adding some technical features. For example, the driving device may also be directly a linear motor. In this way, the conversion device is no longer required. For another example, the conversion device may also be a crack slide block. For another example, the first gas outlet is used for supplying gas to the outer-ring fire cover; the second gas outlet is used for supplying gas to the inner-ring fire cover. For another example, the second valve rod may also be connected and fixed to the upper bottom surface of the truncated cone structure of the second valve core and not connected to the first valve core. For another example, a certain angle may also exist between the two tangent planes. For another example, in order to improve the seal effect of the first valve core and the second valve core with respect to the valve body, a rubber ring or another seal part may also be mounted in a portion of the valve body fitted with the valve core for seal, or materials of the first valve core and the second valve core are rubber or other materials with a good sealing property, or a rubber ring is mounted on outer surfaces of the first valve core and the second valve core.
- The present invention further provides an embodiment of another gas flow control device for a gas stove, which is obtained by making further improvement on the basis of Embodiment A. The only difference between Embodiment B and Embodiment A lies in different structures of the conversion device.
FIG. 4 is a schematic view showing a fitting relationship between the conversion device and the first valve rod 2 of this embodiment. For the consideration of brevity, the structural features of this embodiment same as those in Embodiment A are not described herein again and reference may be made to the corresponding description and accompanying drawings in Embodiment A. - A driving device of the embodiment of the gas flow control device for a gas stove includes a
motor 11 and a conversion device. Themotor 11 includes ashaft rod 12. The conversion device includes acam 15. Thecam 15 is connected to theshaft rod 12. Aguide rail portion 16 is disposed on a side wall of thecam 15 surrounding theshaft rod 12. A projection of a bottom wall 19 of theguide rail portion 16 on a plane vertical to theshaft rod 12 is of a logarithmic spiral structure. In other words, the side wall of thecam 15 has agroove 16 for guiding the shaft rod 2. Thegroove 16 may have a spiral shape, in particular a logarithmic spiral shape. Under the action of the first reset device 6, a side end of the first valve rod 2 is always held against the bottom wall 19 of theguide rail portion 16. - The conversion device is used for converting rotational motion of the
motor 11 into linear motion, to directly drive the first valve rod 2 to make linear motion. Specifically, distances from points on the bottom wall 19 of theguide rail portion 16 to theshaft rod 12 are different and change gradually, so when themotor 11 rotates, theshaft rod 12 drives thecam 15 to rotate, so that the first valve rod 2 moves. - The foregoing is only the exemplary embodiment of the present invention and other embodiments may be obtained by modifying or replacing some technical features. For example, the cam may also be an eccentric wheel. For another example, when the gas flow control device is in a turn-off state (that is, the gas stove is in a turn-off state), the side end of the first valve rod may also be not held against the bottom wall of the guide rail portion.
- The present invention further provides an embodiment of another gas flow control device for a gas stove, which is obtained by making further improvement on the basis of Embodiment B. The main difference between Embodiment C and Embodiment B lies in that, in Embodiment B, the driving device directly drives the first valve rod 2 to move and indirectly drives the second valve rod 3 to move; while in this embodiment, the driving device directly drives the first valve rod 2 and the second valve rod 3 to move.
FIG. 5 is a schematic view showing a fitting relationship between the conversion device and the first valve rod 2 and the second valve rod 3 of this embodiment. For the consideration of brevity, the structural features of this embodiment same as those in Embodiment B are not described herein again and reference may be made to the corresponding description in Embodiment B. - As shown in
FIG. 5 , the first valve rod 2 and the second valve rod 3 are of an integral structure and are totally fork-shaped. A common end of the first valve rod 2 and the second valve rod 3 is always held against the bottom wall 19 of theguide rail portion 16. The first valve rod 2 is connected to afirst valve core 4 and the second valve rod 3 is not connected to the second valve core 5. - The conversion device is used for converting rotational motion of the
motor 11 into linear motion, to directly drive the first valve rod 2 and second valve rod 3 to make linear motion. Specifically, after the motor is started, theshaft rod 12 rotates to drives the first valve rod 2 and second valve rod 3 to move, and the first valve rod 2 drives thefirst valve core 4 to move, so as to open the gas flow passage through which gas flowing from the gas inlet 8 flows to the first gas outlet 9. Themotor 11 continuously rotates, when an open degree of the gas flow passage through which gas flowing from the gas inlet 8 flows to the first gas outlet 9 is gradually increased to a certain degree, the second valve rod 3 touches the second valve core 5 and pushes the second valve core 5 to move, so as to open the gas flow passage through which gas flowing from the gas inlet 8 flows to thesecond gas outlet 10. - The present invention further provides an embodiment of another gas flow control device for a gas stove, which is obtained by making further improvement on the basis of Embodiment A. The main difference between Embodiment D and Embodiment A lies in that, this embodiment includes two functional modules separated from each other and used for converting rotational motion of a motor into linear motion, and Embodiment A includes only one functional module of such a type. For the consideration of brevity, the structural features of this embodiment same as those in Embodiment A are not described herein again and reference may be made to the corresponding description and accompanying drawings in Embodiment A.
- Specifically, the conversion device of this embodiment includes a first conversion device and a second conversion device. The first conversion device is used for converting rotational motion of the motor into linear motion, to directly drive the first valve rod to make linear motion. The second conversion device is used for converting rotational motion of the motor into linear motion, to directly drive the second valve rod to make linear motion.
- The present invention further provides an embodiment of a gas stove, disposed with the gas flow control device according to any one of Embodiment A to Embodiment D. For the consideration of brevity, the structural features of the gas flow control device are not described herein again and reference may be made to the corresponding description and accompanying drawings in Embodiment A to Embodiment D.
- The embodiment of the gas stove is further disposed with a self-priming electromagnetic valve. When the gas stove is in a turn-off state, the self-priming electromagnetic valve closes a gas flow passage through which gas flows to the gas inlet 8. When the gas stove is turned on, a control module of the gas stove supplies power to the self-priming electromagnetic valve and the self-priming electromagnetic valve acts to open the gas flow passage through which gas flows to the gas inlet 8. When the gas stove is in a burning state, a thermoelectric couple of the gas stove supplies power to the self-priming electromagnetic valve so that the gas flow passage through which gas flows to the gas inlet 8 is kept in an open state. When accidental flameout occurs or the gas stove is turned off, the self-priming electromagnetic valve closes the gas flow passage through which gas flows to the gas inlet 8 due to loss of power supply.
- It should be additionally noted that, it should be construed that the present invention is not limited to the embodiments described above but covers all possible implementation conditions determined by the claims. Therefore, any simple amending, equivalent change, or modification made to the embodiments without departing from the content of the technical solutions of the present invention according to the technical essence of the present invention should fall within the protection scope of the technical solutions of the present invention. It should be noted that, any inferior application based on the present invention still falls within the protection scope of the technical solutions of the present invention.
Claims (12)
- A gas flow control device for a gas stove, comprising a first gas valve, a second gas valve and a driving device (11, 12, 13, 14, 15, 16), the driving device (11, 12, 13, 14, 15, 16) being configured for actuating each of the gas valves between an open and a closed position thereof in a linear manner, wherein the second valve opens only after the first valve has reached its open position, wherein the first valve has a first valve core (4) as well as a first and a second valve rod (2, 3) connected to the first valve core (4) on opposite sides, wherein, in the closed state of a respective gas valve, the second valve rod (3) is spaced apart from a second valve core (5) of the second valve, and wherein the second valve rod (3) contacts the second valve core (5) for actuating the second valve core (5) into its open position corresponding to the open position of the second valve (1, 5) only once the first valve core (4) has reached its open position corresponding to the open position of the first valve.
- The gas flow control device of claim 1, characterized in that respective valve rods (2, 3) of the first and second gas valve lie on the same straight line.
- The gas flow control device of claim 1, characterized in that first and second reset devices (6, 7) are provided for urging the first and second valve core (4, 5) into the closed position of a respective gas valve.
- The gas flow control device of claim 3, characterized in that the first and/or second reset device (6, 7) is configured as a spring.
- The gas flow control device of one of claims 1 - 4, characterized in that the driving device comprises a motor (11) and means (12, 13, 14, 15, 16) for converting a motor rotational motion into a linear motion for actuating the at least one gas valve (1, 4, 5) in the linear manner.
- The gas flow control device of claim 5, characterized in that the means comprise a gear wheel (13) connected to a shaft (12) of the motor (11), the gear wheel (13) meshing with a gear rack (14).
- The gas flow control device of claim 6, characterized in that the gear rack (14) is connected to the first valve shaft (2).
- The gas flow control device of claim 7, characterized in that the gear rack (14) is formed integrally with the first valve shaft (2).
- The gas flow control device of claim 5, characterized in that the means comprise a cam (15) connected to a shaft (12) of the motor (11).
- The gas flow control device of claim 9, characterized in that the cam (15) is configured to directly acutate the first valve shaft (2).
- The gas flow control device of claim 10, characterized in that the cam (15) has a groove (16) for guiding the first valve chaft (2) and/or the groove (16) has a spiral shape.
- Gas stove, in particular household gas stove, comprising a gas flow control device of one of claims 1 - 11.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210139154.XA CN103375609B (en) | 2012-04-28 | 2012-04-28 | Gas-cooker and its gas flow control device |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2657602A2 EP2657602A2 (en) | 2013-10-30 |
EP2657602A3 EP2657602A3 (en) | 2017-11-01 |
EP2657602B1 true EP2657602B1 (en) | 2020-09-16 |
Family
ID=48141797
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13164292.8A Active EP2657602B1 (en) | 2012-04-28 | 2013-04-18 | Gas stove and gas flow control device thereof |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2657602B1 (en) |
CN (1) | CN103375609B (en) |
ES (1) | ES2825951T3 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015221192A1 (en) * | 2015-10-29 | 2017-05-04 | Robert Bosch Gmbh | Heater device and method with a heater device |
CN109425484B (en) * | 2017-08-25 | 2024-01-16 | 宁波方太厨具有限公司 | Flow test board for plug valve of gas stove |
CN112049964B (en) * | 2019-06-05 | 2024-04-16 | 博西华电器(江苏)有限公司 | Switching valve and refrigeration appliance |
CN111503324B (en) * | 2020-02-13 | 2022-02-01 | 佛山市顺德区美的洗涤电器制造有限公司 | Fluid flow control device and gas stove |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2414688A1 (en) * | 1974-03-27 | 1975-10-16 | Bosch Gmbh Robert | Control device for fuel supply to heating burner - uses main gas valve of pressure regulator as charging valve |
GB2049917A (en) * | 1979-05-23 | 1980-12-31 | Bosch Gmbh Robert | A gas fitting, particularly for heating ovens and heating boilers |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB625685A (en) * | 1946-08-02 | 1949-07-01 | Cossor Ltd A C | Improvements relating to fluid-actuated valves |
GB1215014A (en) * | 1967-04-12 | 1970-12-09 | Ranco Controls Ltd | Fluid control valve |
BR9106155A (en) * | 1990-03-14 | 1993-03-09 | Armando Gandolfi | DEVICE FOR CONTROL OF FLOW OF GAS, WATER VAPOR OR OTHER FLUIDS |
IT1290225B1 (en) * | 1997-01-31 | 1998-10-22 | Voith Riva Hydro S P A | HYDRAULIC VALVE AND RELATED ELECTRO-HYDRAULIC SYSTEM FOR THE CONTROL OF THE REGULATING ORGANS OF HYDRAULIC TURBINES |
GB2326697B (en) * | 1997-06-14 | 2001-09-05 | Concentric Controls Ltd | Valve assembly |
CN2320857Y (en) * | 1998-01-04 | 1999-05-26 | 广东长青(集团)公司 | Thin safety valve for gas range |
CN2416307Y (en) * | 2000-01-28 | 2001-01-24 | 南京斯奥欣电气具有限公司 | One-in multiple-out plug valve |
GB2362706A (en) * | 2000-05-26 | 2001-11-28 | Teddington Controls Ltd | Gas control valve |
CN2913766Y (en) * | 2005-12-09 | 2007-06-20 | 郭富永 | Adjustable thermostatic valve |
TWM363561U (en) * | 2009-01-15 | 2009-08-21 | Seven Universe Ind Co Ltd | Gas switch capable of finely regulating fire power |
-
2012
- 2012-04-28 CN CN201210139154.XA patent/CN103375609B/en active Active
-
2013
- 2013-04-18 ES ES13164292T patent/ES2825951T3/en active Active
- 2013-04-18 EP EP13164292.8A patent/EP2657602B1/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2414688A1 (en) * | 1974-03-27 | 1975-10-16 | Bosch Gmbh Robert | Control device for fuel supply to heating burner - uses main gas valve of pressure regulator as charging valve |
GB2049917A (en) * | 1979-05-23 | 1980-12-31 | Bosch Gmbh Robert | A gas fitting, particularly for heating ovens and heating boilers |
Also Published As
Publication number | Publication date |
---|---|
CN103375609B (en) | 2017-09-22 |
EP2657602A3 (en) | 2017-11-01 |
CN103375609A (en) | 2013-10-30 |
ES2825951T3 (en) | 2021-05-17 |
EP2657602A2 (en) | 2013-10-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8875692B2 (en) | Regulation valve | |
EP2657602B1 (en) | Gas stove and gas flow control device thereof | |
US8181705B2 (en) | Fluid injection device | |
US7287551B2 (en) | Gas control valve | |
US20070215225A1 (en) | Valve arrangement for a gas installation | |
CN102369376B (en) | Pressure independent control valve | |
JP2013241958A (en) | Electrically operated valve | |
AU2014254639A1 (en) | Dual venturi for combustion device | |
CN112443692A (en) | Ever-burning fire gas valve | |
CN102817877A (en) | Water switch control valve | |
US20140151588A1 (en) | Adjustable gas electromagnetic valve | |
EP3546831B1 (en) | Gas cock with a safety valve for a gas cooking appliance, and gas cooking appliance incorporating said gas cock | |
CN216279547U (en) | Gas valve | |
CN202118020U (en) | Water pressure switch control valve | |
CN211852888U (en) | Linear output air-gas linkage valve and valve group with same | |
CN210318742U (en) | Zero-pressure-difference normally open electromagnetic valve | |
ES2781484T3 (en) | Gas cooker and gas flow control device | |
RU2772094C1 (en) | Valve design and appliance | |
CN210890235U (en) | Gas valve | |
EP3412970A1 (en) | Gas valve with progressive flow | |
CN114033868A (en) | Gas valve | |
CN101776180A (en) | Temperature control valve capable of cleaning valve core on line | |
CN106439807A (en) | Mechanical burner with constant-proportion adjustment function | |
US161531A (en) | Improvement in gas-burners | |
EP3546830A1 (en) | Gas cock with a safety valve for a gas cooking appliance, and gas cooking appliance incorporating said gas cock |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: REDONDO MORITZ, JOSE Inventor name: WU, JINHUA Inventor name: ZOU, XUE |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: ZOU, XUE Inventor name: REDONDO MORITZ, JOSE Inventor name: WU, JINHUA |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: BSH HAUSGERAETE GMBH |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: F23N 1/00 20060101AFI20170927BHEP |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20180502 |
|
RBV | Designated contracting states (corrected) |
Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20200507 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602013072531 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 1314488 Country of ref document: AT Kind code of ref document: T Effective date: 20201015 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20201216 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20201216 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200916 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200916 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200916 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK05 Ref document number: 1314488 Country of ref document: AT Kind code of ref document: T Effective date: 20200916 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20200916 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200916 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200916 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200916 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200916 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210118 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200916 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200916 Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200916 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200916 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2825951 Country of ref document: ES Kind code of ref document: T3 Effective date: 20210517 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200916 Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200916 Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200916 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210116 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 602013072531 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200916 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20210617 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200916 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200916 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 602013072531 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200916 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20210418 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210418 |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20210430 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210430 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210430 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210418 Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210430 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20211103 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210418 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210116 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210430 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20130418 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200916 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200916 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20230428 Year of fee payment: 11 Ref country code: ES Payment date: 20230517 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: TR Payment date: 20230414 Year of fee payment: 11 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200916 |