US20080076079A1 - Gas valve and method for actuating a gas valve - Google Patents
Gas valve and method for actuating a gas valve Download PDFInfo
- Publication number
- US20080076079A1 US20080076079A1 US11/882,593 US88259307A US2008076079A1 US 20080076079 A1 US20080076079 A1 US 20080076079A1 US 88259307 A US88259307 A US 88259307A US 2008076079 A1 US2008076079 A1 US 2008076079A1
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- United States
- Prior art keywords
- valve
- drive axle
- spring
- drive
- gas
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/002—Regulating fuel supply using electronic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
- F16K11/24—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members with an electromagnetically-operated valve, e.g. for washing machines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
- F16K37/0041—Electrical or magnetic means for measuring valve parameters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/12—Arrangement or mounting of control or safety devices
- F24C3/126—Arrangement or mounting of control or safety devices on ranges
-
- 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
-
- 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
- F23N2235/22—Fuel valves cooperating with magnets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2241/00—Applications
- F23N2241/08—Household apparatus
Definitions
- the present invention relates to a gas valve and to a method for electrically actuating a gas valve, and in particular to a gas valve and to a method for actuating a gas valve in which at least one valve position is detected by means of the actuation.
- the prior art discloses a large number of gas valves, for example in DE 198 25 846 A1, in particular also such valves with devices for securing the gas burning position.
- DE 3787200 T2 discloses, for example, a control unit for a gas flow with a motor drive unit which drives a valve closing part in rotation and which also comprises a position-determining unit with a position-signal-generating device which is mounted on a stem of the closing part, and also a position-assessment circuit which receives a signal from the position-signal-generating device and has the purpose of assessing a rotational position of the closing part.
- the known control unit also comprises a drive unit which receives a target position signal and a rotational position signal from the position-determining unit and has the purpose of applying a drive signal to the motor drive unit.
- a drive unit which receives a target position signal and a rotational position signal from the position-determining unit and has the purpose of applying a drive signal to the motor drive unit.
- the known control unit with the motor drive unit which drives in a rotating fashion and the position-determining unit and also the position-signal-generating device and the position-assessment circuit is complex and correspondingly expensive to manufacture.
- the object of the present invention is therefore to make available a reliable, safe, cost-effective and electrically operated gas valve which can also be operated with remote control.
- an object of the present invention is also to specify a simple and reliable method for electrically actuating a gas valve.
- FIG. 1 a shows a schematic section through a gas valve according to a first embodiment of the present invention
- FIGS. 1 b and 1 c show the actuator element of the gas valve in various closed/open positions
- FIG. 2 a shows a schematic section through a gas valve according to a second embodiment of the present invention
- FIGS. 2 b to 2 e show the actuator element of the gas valve in various closed/open positions
- FIG. 3 shows a schematic section through a gas valve according to a third embodiment of the present invention.
- FIG. 4 shows the power drain for the valve position for the gas valve in FIGS. 2 and 3 .
- the present invention relates in particular to a method for controlling a gas valve having a valve inlet and a first valve outlet and a first valve which closes/opens the first valve outlet and having a linear drive which is actuated by an electronic controller, wherein the linear drive activates the first valve by means of a drive axle, and wherein the first valve and the linear drive are embodied and arranged in such a way that the electronic controller detects the open/closed position of the valve by measuring current/voltage during activation of the linear drive.
- the linear drive and the drive axle can be made available here in a suitable way by a linear motor with a motor axle, and the electronic controller can be suitably and advantageously made available by means of a microcontroller.
- the method according to the invention also comprises a gas valve having a second valve which closes/opens the valve inlet, wherein, by means of its drive axle, the linear drive also opens the second valve when the first valve is closed, and the electronic controller also detects the open/closed position of the second valve by measuring current/voltage.
- the second valve can at the same time advantageously be a protective valve which protects a gas burning location arranged downstream of the valve against gas which flows out without being burnt.
- a further advantageous embodiment of the present invention relates in addition to a gas valve having the valve inlet and the first valve outlet for supplying gas to a main flame and a second valve outlet for supplying gas to a secondary flame
- the second valve can advantageously be embodied as a solenoid valve
- the linear drive controls, by means of its drive axle, the first valve when the second valve is opened, and when the second valve is closed said linear drive opens the second valve, in which case the first valve is closed
- the electronic controller detects at least one position of the drive axle of the linear drive by measuring current/voltage, and thus detects the position of the first valve and second valve.
- the first valve and second valve and the linear drive are advantageously embodied and arranged in such a way that by measuring current/voltage the electronic controller detects in particular the following positions of its drive axle: abutment of the drive axle against the second valve when the second valve is closed, and/or activation of the second valve and/or abutment of the drive axle against a stop of the completely opened second valve; and/or abutment of the drive axle against the closed first valve and/or activation of the first valve and/or abutment against a stop of the completely opened first valve.
- the first valve and second valve are advantageously embodied and arranged in such a way that they open/close in opposite directions to one another, wherein the drive axle activates the actuator element of the first valve and second valve counter to the pressure force of a spring which is arranged on each of the valves.
- the present invention also relates in particular to a gas valve for the method according to the invention, wherein a valve closure of the first valve is embodied as a cone with a central, continuous bore, and is arranged together with a spring in a series arrangement with the spring on the drive axle, and is held via a locking means at the end of the drive axle, wherein the spring, the drive axle and the cone are embodied in such a way that the spring force of the spring closes the first valve outlet when the drive axle is arranged correspondingly, and the drive axle opens/closes the first valve by means of the locking means as a stop against the cone counter to the pressure force of the spring when corresponding actuation occurs.
- FIG. 1 a shows a schematic section through a gas valve 1 according to the invention in accordance with a first embodiment of the present invention having a valve housing 10 with a valve inlet 11 and a valve outlet 12 and a valve 14 which closes/opens the valve outlet 12 , and having a linear drive 2 which is actuated by an electronic controller S, wherein by means of its drive axle 21 the linear drive 2 activates the first valve 14 .
- the first valve 14 and the linear drive 2 are embodied and arranged in such a way that the electronic controller S detects the open/closed position of the valve 14 by measuring current/voltage.
- the linear drive 2 can in particular advantageously be made available by means of a linear motor
- the drive axle 21 can advantageously be made available by means of its motor axle
- the electronic controller S can be made available in particular by means of a microcontroller.
- the valve 14 comprises as actuator element a cone 22 which is arranged together with a spring 23 and a sealing element 25 in series in this sequence on the drive axle 21 , and is secured on the drive axle 21 by a suitable locking means 24 .
- FIGS. 1 b and 1 c each show schematic illustrations of the linear drive 2 from FIG. 1 a in various open and closed positions of the valve 14 .
- the spring 23 exerts a pressure on the cone 22 so that the valve is closed. If the drive axle 21 is then moved to the right in the drawing counter to the closed position of the actuator element, the locking means abuts against the cone 22 and exerts a pressure on the cone 22 which pushes the cone 22 into the open position of FIG. 1 b , counter to the increasing spring pressure of the spring 23 .
- the abutment of the locking means 24 against the cone 22 and/or the closed position of the cone 22 and/or an abutment of the cone 22 in the open position of the valve 14 can be detected solely by measuring current/voltage of the linear drive 2 by means of the electronic controller S so that at least one defined position of the actuator element of the valve 14 can be detected by activating the linear drive 2 .
- FIG. 2 a shows a schematic section through a gas valve 1 according to a second embodiment of the present invention with a valve inlet 11 and a first valve outlet 12 and a first valve 14 which closes/opens the first valve outlet 12 , and with a linear drive 2 which is actuated by an electronic controller S, wherein by means of its drive axle 21 the linear drive 2 activates the first valve 14 .
- the linear drive 2 and its drive axle 21 can be made available in a suitable way by means of a linear motor and its motor axle, and the electronic controller S can suitably also be made available by means of a microcontroller.
- the second embodiment of the present invention also comprises a second valve 15 which closes/opens the valve inlet 11 , wherein, according to the invention, the linear drive 2 is arranged and embodied in such a way that when the first valve 14 is closed it also opens, by means of its drive axle 21 , the second valve 15 , wherein the electronic controller S detects the open/closed position of the first valve 14 and of the second valve 15 by measuring current/voltage.
- the second valve 15 is embodied in such a way that its actuator element 3 is also pressed into the closed position of the valve 15 by means of a spring.
- the drive axle 21 , the sealing element 25 , the spring 23 , the cone 22 and the locking means 24 in the second embodiment of the present invention are embodied and arranged as in the first embodiment of the present invention described above.
- FIGS. 2 b to 2 e show the linear drive 2 with the drive axle 21 , the sealing element 25 , the spring 23 , the cone 22 and the locking means 24 , in each case in the open/closed position of the first valve 14 and of the second valve 15 .
- the activation of the first valve 14 which is illustrated schematically in FIGS. 2 b and 2 c corresponds to the activation of the valve 14 of the first embodiment of the present invention which is described above with reference to FIG. 1 .
- FIGS. 2 d and 2 e are schematic illustrations of the activation of the actuator element 3 of the second valve 15 by means of the drive axle 21 , wherein the drive axle 21 is moved, with the locking means 24 , into the closed position of the first valve 14 in the direction of the second valve 15 , wherein the abutment of the drive axle 21 against the actuator element 3 of the closed and/or opened second valve 15 can also be detected according to the invention by measuring the current/voltage of the drive current.
- an increasing counter pressure of the spring 23 or of the second spring (not illustrated in the drawings) of the second valve 15 is also detected by the electronic controller S by measuring the current/voltage when the first and/or second valve 14 and 15 open.
- the second valve 15 is suitably embodied and arranged as a protection valve and suitably as a solenoid valve and is suitably actuated by means of a flame monitoring device and, for example, ionization or temperature measurement.
- FIG. 3 shows a schematic section through a third embodiment of the present invention which corresponds essentially to the second embodiment of the present invention which is described above, with identical/similar components having the same reference symbols, with the difference that the valve 1 has, in addition to the first valve outlet 12 , a second valve outlet 13 which is embodied and arranged in such a way that it is always opened irrespective of the position of the first valve 14 , and through which no gas flows out only when the valve 15 , which closes the valve inlet 11 , is closed.
- the second valve outlet 13 can be used for a secondary flame and in particular for a pilot flame.
- FIG. 4 shows a schematic illustration of the drive current as a function of the drive path in the second and third embodiments of the present invention, with the point P representing the abutment of the locking means 24 against the cone 22 of the closed first valve 14 when the second valve 13 is opened and ignition having taken place, and the travel E representing the increasing counter pressure of the spring 23 , and the travel F representing the abutment of the drive axle against the completely opened first valve 14 .
- the travel A indicates the decreasing pressure of the spring 23 to the line P which represents the abutment of the cone 22 against the closed position of the first valve 14
- the travel B indicates the constant friction of the drive axle 21 which moves beyond the cone 22 in the direction of the closed second valve 15 , and abuts against the actuator element 3 of the second valve 15 at the point P 1 .
- the travel C finally indicates the opening of the second valve 15 counter to the counter pressure from the spring of the second valve 15 .
- the second valve 15 which is suitably embodied as a protection valve as in the second embodiment of the present invention described above, suitably comprises a magnet which, in the open position, holds the second valve 15 open given a sufficient, for example, thermal current of a thermal element, but does not have enough power to open a closed second valve 15 counter to the pressure of its spring.
- the second valve 15 can also be embodied as a self-priming solenoid valve, in which the spring constant of the second spring and the force effect of the magnet of the second valve 15 are predetermined in such a way that the magnet can hold the second valve 15 in the opened state and can also open it automatically, and the pressure force of the second spring closes the valve inlet 11 when the magnet is switched off and the drive axle 21 is arranged correspondingly.
- linear drive 2 in combination with the electronic controller S easily permits automatic detection of at least one defined position of the drive axle 21 and of the position of the first and/or second valves 14 and 15 .
- the method according to the invention and the valve 1 according to the invention are particularly suitable for safely controlling the gas supply to a gas burning point and in particular to a cooker or gas stove.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetically Actuated Valves (AREA)
- Lift Valve (AREA)
- Feeding And Controlling Fuel (AREA)
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Abstract
Description
- The present invention relates to a gas valve and to a method for electrically actuating a gas valve, and in particular to a gas valve and to a method for actuating a gas valve in which at least one valve position is detected by means of the actuation.
- The prior art discloses a large number of gas valves, for example in DE 198 25 846 A1, in particular also such valves with devices for securing the gas burning position.
- For a large number of applications it is desirable to make available an electrically operated gas valve which can also be operated with a remote control. DE 3787200 T2 discloses, for example, a control unit for a gas flow with a motor drive unit which drives a valve closing part in rotation and which also comprises a position-determining unit with a position-signal-generating device which is mounted on a stem of the closing part, and also a position-assessment circuit which receives a signal from the position-signal-generating device and has the purpose of assessing a rotational position of the closing part.
- The known control unit also comprises a drive unit which receives a target position signal and a rotational position signal from the position-determining unit and has the purpose of applying a drive signal to the motor drive unit. However, the known control unit with the motor drive unit which drives in a rotating fashion and the position-determining unit and also the position-signal-generating device and the position-assessment circuit is complex and correspondingly expensive to manufacture.
- The object of the present invention is therefore to make available a reliable, safe, cost-effective and electrically operated gas valve which can also be operated with remote control. At the same time, an object of the present invention is also to specify a simple and reliable method for electrically actuating a gas valve.
- The object is achieved with the features of the claims. Advantageous embodiments of the invention are mentioned in the features of the subclaims and/or the following description.
- In the drawings:
-
FIG. 1 a shows a schematic section through a gas valve according to a first embodiment of the present invention, andFIGS. 1 b and 1 c show the actuator element of the gas valve in various closed/open positions; -
FIG. 2 a shows a schematic section through a gas valve according to a second embodiment of the present invention, andFIGS. 2 b to 2 e show the actuator element of the gas valve in various closed/open positions; -
FIG. 3 shows a schematic section through a gas valve according to a third embodiment of the present invention; and -
FIG. 4 shows the power drain for the valve position for the gas valve inFIGS. 2 and 3 . - The present invention relates in particular to a method for controlling a gas valve having a valve inlet and a first valve outlet and a first valve which closes/opens the first valve outlet and having a linear drive which is actuated by an electronic controller, wherein the linear drive activates the first valve by means of a drive axle, and wherein the first valve and the linear drive are embodied and arranged in such a way that the electronic controller detects the open/closed position of the valve by measuring current/voltage during activation of the linear drive. The linear drive and the drive axle can be made available here in a suitable way by a linear motor with a motor axle, and the electronic controller can be suitably and advantageously made available by means of a microcontroller.
- With the advantageous provision of the linear drive for actuating an actuator element in conjunction with the electronic controller and the inventive detection of the position of the actuator element by measuring the current/voltage of the linear drive, a reliable method for controlling a gas valve is easily made available, and at the same time the gas valve can be manufactured cost-effectively.
- According to a further embodiment of the present invention, the method according to the invention also comprises a gas valve having a second valve which closes/opens the valve inlet, wherein, by means of its drive axle, the linear drive also opens the second valve when the first valve is closed, and the electronic controller also detects the open/closed position of the second valve by measuring current/voltage. The second valve can at the same time advantageously be a protective valve which protects a gas burning location arranged downstream of the valve against gas which flows out without being burnt.
- A further advantageous embodiment of the present invention relates in addition to a gas valve having the valve inlet and the first valve outlet for supplying gas to a main flame and a second valve outlet for supplying gas to a secondary flame, wherein the second valve can advantageously be embodied as a solenoid valve, and wherein the linear drive controls, by means of its drive axle, the first valve when the second valve is opened, and when the second valve is closed said linear drive opens the second valve, in which case the first valve is closed, and wherein the electronic controller detects at least one position of the drive axle of the linear drive by measuring current/voltage, and thus detects the position of the first valve and second valve.
- In this context, the first valve and second valve and the linear drive are advantageously embodied and arranged in such a way that by measuring current/voltage the electronic controller detects in particular the following positions of its drive axle: abutment of the drive axle against the second valve when the second valve is closed, and/or activation of the second valve and/or abutment of the drive axle against a stop of the completely opened second valve; and/or abutment of the drive axle against the closed first valve and/or activation of the first valve and/or abutment against a stop of the completely opened first valve.
- In the method according to the invention, the first valve and second valve are advantageously embodied and arranged in such a way that they open/close in opposite directions to one another, wherein the drive axle activates the actuator element of the first valve and second valve counter to the pressure force of a spring which is arranged on each of the valves.
- The present invention also relates in particular to a gas valve for the method according to the invention, wherein a valve closure of the first valve is embodied as a cone with a central, continuous bore, and is arranged together with a spring in a series arrangement with the spring on the drive axle, and is held via a locking means at the end of the drive axle, wherein the spring, the drive axle and the cone are embodied in such a way that the spring force of the spring closes the first valve outlet when the drive axle is arranged correspondingly, and the drive axle opens/closes the first valve by means of the locking means as a stop against the cone counter to the pressure force of the spring when corresponding actuation occurs.
- The present invention is described in detail below with reference to the schematic drawings.
-
FIG. 1 a shows a schematic section through agas valve 1 according to the invention in accordance with a first embodiment of the present invention having avalve housing 10 with avalve inlet 11 and avalve outlet 12 and avalve 14 which closes/opens thevalve outlet 12, and having alinear drive 2 which is actuated by an electronic controller S, wherein by means of itsdrive axle 21 thelinear drive 2 activates thefirst valve 14. In this context, thefirst valve 14 and thelinear drive 2 are embodied and arranged in such a way that the electronic controller S detects the open/closed position of thevalve 14 by measuring current/voltage. At the same time, thelinear drive 2 can in particular advantageously be made available by means of a linear motor, and thedrive axle 21 can advantageously be made available by means of its motor axle, and the electronic controller S can be made available in particular by means of a microcontroller. - The
valve 14 comprises as actuator element acone 22 which is arranged together with aspring 23 and asealing element 25 in series in this sequence on thedrive axle 21, and is secured on thedrive axle 21 by a suitable locking means 24. -
FIGS. 1 b and 1 c each show schematic illustrations of thelinear drive 2 fromFIG. 1 a in various open and closed positions of thevalve 14. In the closed position inFIG. 1 c, thespring 23 exerts a pressure on thecone 22 so that the valve is closed. If thedrive axle 21 is then moved to the right in the drawing counter to the closed position of the actuator element, the locking means abuts against thecone 22 and exerts a pressure on thecone 22 which pushes thecone 22 into the open position ofFIG. 1 b, counter to the increasing spring pressure of thespring 23. - In this context, according to the invention in each case the abutment of the locking means 24 against the
cone 22 and/or the closed position of thecone 22 and/or an abutment of thecone 22 in the open position of thevalve 14 can be detected solely by measuring current/voltage of thelinear drive 2 by means of the electronic controller S so that at least one defined position of the actuator element of thevalve 14 can be detected by activating thelinear drive 2. -
FIG. 2 a shows a schematic section through agas valve 1 according to a second embodiment of the present invention with avalve inlet 11 and afirst valve outlet 12 and afirst valve 14 which closes/opens thefirst valve outlet 12, and with alinear drive 2 which is actuated by an electronic controller S, wherein by means of itsdrive axle 21 thelinear drive 2 activates thefirst valve 14. - It is clear that here, as in the first embodiment described above and also the third embodiment of the present invention described below with reference to
FIG. 3 , thelinear drive 2 and itsdrive axle 21 can be made available in a suitable way by means of a linear motor and its motor axle, and the electronic controller S can suitably also be made available by means of a microcontroller. - The second embodiment of the present invention also comprises a
second valve 15 which closes/opens thevalve inlet 11, wherein, according to the invention, thelinear drive 2 is arranged and embodied in such a way that when thefirst valve 14 is closed it also opens, by means of itsdrive axle 21, thesecond valve 15, wherein the electronic controller S detects the open/closed position of thefirst valve 14 and of thesecond valve 15 by measuring current/voltage. In this context, thesecond valve 15 is embodied in such a way that itsactuator element 3 is also pressed into the closed position of thevalve 15 by means of a spring. - The
drive axle 21, thesealing element 25, thespring 23, thecone 22 and the locking means 24 in the second embodiment of the present invention are embodied and arranged as in the first embodiment of the present invention described above. -
FIGS. 2 b to 2 e show thelinear drive 2 with thedrive axle 21, thesealing element 25, thespring 23, thecone 22 and the locking means 24, in each case in the open/closed position of thefirst valve 14 and of thesecond valve 15. - The activation of the
first valve 14 which is illustrated schematically inFIGS. 2 b and 2 c corresponds to the activation of thevalve 14 of the first embodiment of the present invention which is described above with reference toFIG. 1 . -
FIGS. 2 d and 2 e are schematic illustrations of the activation of theactuator element 3 of thesecond valve 15 by means of thedrive axle 21, wherein thedrive axle 21 is moved, with the locking means 24, into the closed position of thefirst valve 14 in the direction of thesecond valve 15, wherein the abutment of thedrive axle 21 against theactuator element 3 of the closed and/or openedsecond valve 15 can also be detected according to the invention by measuring the current/voltage of the drive current. In this context it is particularly advantageous that in addition an increasing counter pressure of thespring 23 or of the second spring (not illustrated in the drawings) of thesecond valve 15 is also detected by the electronic controller S by measuring the current/voltage when the first and/orsecond valve - It is clear that given a correspondingly inverted arrangement of the actuator element on the
drive axle 21, a decreasing spring pressure of the spring is correspondingly detected by the electronic controller S of thelinear drive 2. - In the second embodiment of the present invention, the
second valve 15 is suitably embodied and arranged as a protection valve and suitably as a solenoid valve and is suitably actuated by means of a flame monitoring device and, for example, ionization or temperature measurement. -
FIG. 3 shows a schematic section through a third embodiment of the present invention which corresponds essentially to the second embodiment of the present invention which is described above, with identical/similar components having the same reference symbols, with the difference that thevalve 1 has, in addition to thefirst valve outlet 12, asecond valve outlet 13 which is embodied and arranged in such a way that it is always opened irrespective of the position of thefirst valve 14, and through which no gas flows out only when thevalve 15, which closes thevalve inlet 11, is closed. Thesecond valve outlet 13 can be used for a secondary flame and in particular for a pilot flame. -
FIG. 4 shows a schematic illustration of the drive current as a function of the drive path in the second and third embodiments of the present invention, with the point P representing the abutment of the locking means 24 against thecone 22 of the closedfirst valve 14 when thesecond valve 13 is opened and ignition having taken place, and the travel E representing the increasing counter pressure of thespring 23, and the travel F representing the abutment of the drive axle against the completely openedfirst valve 14. - When the
first valve 14 closes, the travel A indicates the decreasing pressure of thespring 23 to the line P which represents the abutment of thecone 22 against the closed position of thefirst valve 14, after which the travel B indicates the constant friction of thedrive axle 21 which moves beyond thecone 22 in the direction of the closedsecond valve 15, and abuts against theactuator element 3 of thesecond valve 15 at the point P1. The travel C finally indicates the opening of thesecond valve 15 counter to the counter pressure from the spring of thesecond valve 15. - The
second valve 15, which is suitably embodied as a protection valve as in the second embodiment of the present invention described above, suitably comprises a magnet which, in the open position, holds thesecond valve 15 open given a sufficient, for example, thermal current of a thermal element, but does not have enough power to open a closedsecond valve 15 counter to the pressure of its spring. - Alternatively, the
second valve 15 can also be embodied as a self-priming solenoid valve, in which the spring constant of the second spring and the force effect of the magnet of thesecond valve 15 are predetermined in such a way that the magnet can hold thesecond valve 15 in the opened state and can also open it automatically, and the pressure force of the second spring closes thevalve inlet 11 when the magnet is switched off and thedrive axle 21 is arranged correspondingly. - The travel D from the abutment of the
drive axle 21 against the completely openedsecond valve 15 as far as the abutment of the locking means 24 against the actuator element, specifically thecone 22, of the closedfirst valve 14 then proceeds again with constant friction and a correspondingly constant drive current. - It is clear that given a first and/or second valve which are correspondingly arranged in inverted fashion and/or an additional locking means for the spring on the axle in the vicinity of the drive abutment, the spring forces which respectively increase and decrease during the opening/closing of the valves are respectively reversed and their corresponding current/voltage values can also advantageously be used in the same way to determine the valve positions.
- The advantageous provision of the
linear drive 2 in combination with the electronic controller S easily permits automatic detection of at least one defined position of thedrive axle 21 and of the position of the first and/orsecond valves - It is also clear that the
second valve outlet 13 of the embodiment according to the invention inFIG. 3 can correspondingly also be provided in a valve according to the invention as per the embodiment inFIGS. 1 and 2 . - The method according to the invention and the
valve 1 according to the invention are particularly suitable for safely controlling the gas supply to a gas burning point and in particular to a cooker or gas stove. -
-
Gas valve 1 - Valve housing 10
- Valve
inlet 11 -
First valve outlet 12 -
Second valve outlet 13 -
First valve 14 -
Second valve 15 -
Linear drive 2 - Drive
housing 20 - Drive
axle 21 -
Cone 22 -
Spring 23 - Locking means 24
- Sealing
element 25 - Solenoid valve,
actuator element 3
Claims (16)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006036294A DE102006036294A1 (en) | 2006-08-03 | 2006-08-03 | Gas valve controlling method for use in e.g. gas chimney, involves designing and arranging valve and linear drive in such manner that electronic control detects opening/closing of valve by current/voltage measurements |
DE102006036294.2 | 2006-08-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20080076079A1 true US20080076079A1 (en) | 2008-03-27 |
Family
ID=38662932
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/882,593 Abandoned US20080076079A1 (en) | 2006-08-03 | 2007-08-02 | Gas valve and method for actuating a gas valve |
Country Status (4)
Country | Link |
---|---|
US (1) | US20080076079A1 (en) |
EP (1) | EP1887283B1 (en) |
AT (1) | ATE467802T1 (en) |
DE (2) | DE102006036294A1 (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
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FR2941781A1 (en) * | 2009-02-05 | 2010-08-06 | Peugeot Citroen Automobiles Sa | Electrovalve's i.e. exhaust gas recirculation valve, state diagnosing method for diesel engine of motor vehicle, involves evaluating difference between reference intensity and electrical current intensity of electrovalve |
US20110003258A1 (en) * | 2008-02-01 | 2011-01-06 | Carlson Brent J | Remotely actuated pilot valve, system and method |
US20110146594A1 (en) * | 2009-12-22 | 2011-06-23 | Lochinvar Corporation | Fire Tube Heater |
US8517720B2 (en) | 2008-10-16 | 2013-08-27 | Lochinvar, Llc | Integrated dual chamber burner |
US8807092B2 (en) | 2008-10-16 | 2014-08-19 | Lochinvar, Llc | Gas fired modulating water heating appliance with dual combustion air premix blowers |
EP2778527A3 (en) * | 2013-03-13 | 2015-03-18 | BSH Bosch und Siemens Hausgeräte GmbH | Gas flow control device for a gas stove |
WO2015111088A1 (en) * | 2014-01-23 | 2015-07-30 | Idea S.P.A. | Valve for fluids |
WO2015111087A1 (en) * | 2014-01-23 | 2015-07-30 | Idea S.P.A. | Valve for fluids |
US9097436B1 (en) | 2010-12-27 | 2015-08-04 | Lochinvar, Llc | Integrated dual chamber burner with remote communicating flame strip |
US9464805B2 (en) | 2013-01-16 | 2016-10-11 | Lochinvar, Llc | Modulating burner |
EP2545313A4 (en) * | 2010-03-06 | 2016-10-26 | Tool Tech As | Hydraulic control valve with two valve slides |
CN109652253A (en) * | 2018-11-02 | 2019-04-19 | 宁波乐惠国际工程装备股份有限公司 | A kind of door-revolving device and its control method for lautertuns |
Families Citing this family (2)
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CN105180226B (en) * | 2015-10-12 | 2017-11-10 | 王军明 | A kind of Novel gas stove |
CN107906556B (en) * | 2017-11-07 | 2019-04-05 | 南京科远自动化集团股份有限公司 | A kind of fine coal distributor balance control method and equalising control device |
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US4035134A (en) * | 1975-10-14 | 1977-07-12 | Johnson Controls, Inc. | Electronic valve seat leak detector |
US5583434A (en) * | 1993-07-20 | 1996-12-10 | Martin Marietta Energy Systems, Inc. | Method and apparatus for monitoring armature position in direct-current solenoids |
US6234189B1 (en) * | 1998-11-12 | 2001-05-22 | Agt Gas Technology Gmbh | Gas valve with thermoelectric safety shutoff |
US20050005965A1 (en) * | 2003-07-08 | 2005-01-13 | Maite Amazorrain | Power operated gas valve for heating, with a safety valve |
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IT1309954B1 (en) * | 1999-12-30 | 2002-02-05 | Lucio Berto | SAFETY VALVE STRUCTURE PARTICULARLY FOR GAS. |
DE10312087A1 (en) * | 2003-03-19 | 2004-10-07 | Daimlerchrysler Ag | Method for functional testing of a hydraulic valve and test stand for carrying out the method |
DE10318569B3 (en) * | 2003-04-17 | 2004-05-27 | Saia-Burgess Dresden Gmbh | Gas regulating and safety valve for burner of gas heating device has second coaxial closure element fitted to drive shaft of first closure element |
AU2003233188A1 (en) * | 2003-05-09 | 2004-11-26 | Sit La Precisa S.P.A. | Device for controlling the supply of a combustible gas, particularly for cooktops and similar equipment |
DE10355918B4 (en) * | 2003-11-29 | 2006-03-16 | Festo Ag & Co. | Measuring device and method for incremental distance measurement |
DE102004021528B4 (en) * | 2004-05-03 | 2008-08-21 | Bosch Rexroth Ag | Electro-pneumatic seat valve with an electromagnetic drive designed in the manner of the lifting armature system |
FR2875573B1 (en) * | 2004-09-22 | 2006-11-03 | Cartier Technologies Soc Par A | DOUBLE SECURITY CONTROL VALVE |
-
2006
- 2006-08-03 DE DE102006036294A patent/DE102006036294A1/en not_active Withdrawn
-
2007
- 2007-08-01 AT AT07015082T patent/ATE467802T1/en active
- 2007-08-01 DE DE502007003702T patent/DE502007003702D1/en active Active
- 2007-08-01 EP EP07015082A patent/EP1887283B1/en not_active Not-in-force
- 2007-08-02 US US11/882,593 patent/US20080076079A1/en not_active Abandoned
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US4035134A (en) * | 1975-10-14 | 1977-07-12 | Johnson Controls, Inc. | Electronic valve seat leak detector |
US5583434A (en) * | 1993-07-20 | 1996-12-10 | Martin Marietta Energy Systems, Inc. | Method and apparatus for monitoring armature position in direct-current solenoids |
US6234189B1 (en) * | 1998-11-12 | 2001-05-22 | Agt Gas Technology Gmbh | Gas valve with thermoelectric safety shutoff |
US20050005965A1 (en) * | 2003-07-08 | 2005-01-13 | Maite Amazorrain | Power operated gas valve for heating, with a safety valve |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110003258A1 (en) * | 2008-02-01 | 2011-01-06 | Carlson Brent J | Remotely actuated pilot valve, system and method |
US9011140B2 (en) * | 2008-02-01 | 2015-04-21 | Baso Gas Products, Llc | Remotely actuated pilot valve, system and method |
US8517720B2 (en) | 2008-10-16 | 2013-08-27 | Lochinvar, Llc | Integrated dual chamber burner |
US8807092B2 (en) | 2008-10-16 | 2014-08-19 | Lochinvar, Llc | Gas fired modulating water heating appliance with dual combustion air premix blowers |
FR2941781A1 (en) * | 2009-02-05 | 2010-08-06 | Peugeot Citroen Automobiles Sa | Electrovalve's i.e. exhaust gas recirculation valve, state diagnosing method for diesel engine of motor vehicle, involves evaluating difference between reference intensity and electrical current intensity of electrovalve |
US20110146594A1 (en) * | 2009-12-22 | 2011-06-23 | Lochinvar Corporation | Fire Tube Heater |
US8844472B2 (en) | 2009-12-22 | 2014-09-30 | Lochinvar, Llc | Fire tube heater |
EP2545313A4 (en) * | 2010-03-06 | 2016-10-26 | Tool Tech As | Hydraulic control valve with two valve slides |
US9097436B1 (en) | 2010-12-27 | 2015-08-04 | Lochinvar, Llc | Integrated dual chamber burner with remote communicating flame strip |
US9464805B2 (en) | 2013-01-16 | 2016-10-11 | Lochinvar, Llc | Modulating burner |
US10208953B2 (en) | 2013-01-16 | 2019-02-19 | A. O. Smith Corporation | Modulating burner |
EP2778527A3 (en) * | 2013-03-13 | 2015-03-18 | BSH Bosch und Siemens Hausgeräte GmbH | Gas flow control device for a gas stove |
WO2015111087A1 (en) * | 2014-01-23 | 2015-07-30 | Idea S.P.A. | Valve for fluids |
WO2015111088A1 (en) * | 2014-01-23 | 2015-07-30 | Idea S.P.A. | Valve for fluids |
CN109652253A (en) * | 2018-11-02 | 2019-04-19 | 宁波乐惠国际工程装备股份有限公司 | A kind of door-revolving device and its control method for lautertuns |
Also Published As
Publication number | Publication date |
---|---|
EP1887283A1 (en) | 2008-02-13 |
ATE467802T1 (en) | 2010-05-15 |
DE502007003702D1 (en) | 2010-06-24 |
DE102006036294A1 (en) | 2008-02-07 |
EP1887283B1 (en) | 2010-05-12 |
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Owner name: INTER CONTROL HERMANN KOHLER ELEKTRIK GMBH & CO., Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:EGGEBRECHT, FRANK;HOFFEINS, PETER;KOCH, JURGEN;REEL/FRAME:020179/0050 Effective date: 20071109 Owner name: ISPHORDING GERMANY GMBH, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:EGGEBRECHT, FRANK;HOFFEINS, PETER;KOCH, JURGEN;REEL/FRAME:020179/0050 Effective date: 20071109 |
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