EP2954379A1 - Pressure regulator - Google Patents
Pressure regulatorInfo
- Publication number
- EP2954379A1 EP2954379A1 EP14703026.6A EP14703026A EP2954379A1 EP 2954379 A1 EP2954379 A1 EP 2954379A1 EP 14703026 A EP14703026 A EP 14703026A EP 2954379 A1 EP2954379 A1 EP 2954379A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure regulator
- pressure
- module
- closing element
- valve seat
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
- F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
- F16K7/126—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm the seat being formed on a rib perpendicular to the fluid line
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/04—Control of fluid pressure without auxiliary power
- G05D16/06—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule
- G05D16/063—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/04—Control of fluid pressure without auxiliary power
- G05D16/06—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule
- G05D16/063—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane
- G05D16/0644—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting directly on the obturator
- G05D16/0652—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting directly on the obturator using several membranes without spring
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/14—Control of fluid pressure with auxiliary non-electric power
- G05D16/18—Control of fluid pressure with auxiliary non-electric power derived from an external source
- G05D16/185—Control of fluid pressure with auxiliary non-electric power derived from an external source using membranes within the main valve
-
- 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
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0083—For recording or indicating the functioning of a valve in combination with test equipment by measuring valve parameters
Definitions
- the invention relates to a pressure regulator for liquid media with a) a fürgangsströmungsweg extending between two ports for a medium-carrying line; b) a valve seat disposed in the passageway which may be released or closed by a closure member movably supported between a closed position and a release position.
- Such pressure regulators are known for example from DE 44 19 168 AI and are used to regulate the pressure in a medium-carrying line with which an application device is fed.
- pressure regulators are used in paint lines of a paint shop.
- Other areas of application are the supply of material for the application of underbody protection or for seam sealing in vehicle bodies. The latter applications fall under the concept of a so-called thick matter supply, since the media applied there are usually very viscous.
- the design and shape of the application beam depends, inter alia, significantly on the viscosity of the medium to be applied and it is the goal, with the help of the pressure regulator to ensure a uniform volume flow to the application device.
- a pressure sensor and / or a volumetric flow sensor are usually present in the medium-carrying line.
- the pressure regulator is controlled. If its passage flow path is open, an annular gap is formed between the closing element and the valve seat, whose passage cross-section depends on the position of the closing element relative to the valve seat.
- the flow of the application medium can be regulated via this and via any variable volume flow spaces that may be present.
- the invention is based on the recognition that it is possible to detect and monitor the state of the closing element and / or the valve seat directly on the pressure regulator.
- signs of wear can be detected early, so that a required replacement of the pressure regulator or of individual components of the same can be carried out at a time at which there is no production disturbance.
- the occurrence of first signs of wear usually does not lead to an immediate failure of the pressure regulator. Therefore, the required work can be carried out later, if the affected system is already idle anyway, for example in a standard break or on production-free weekends or the like.
- the wear sensor device is set up such that the position of the closing element relative to a reference zero position can be detected. This means, for example, that the wear sensor device is calibrated when installing an unimpaired pressure regulator.
- the reference zero position is preferably defined when the unobstructed closing element assumes its closed position and abuts against an undisturbed valve seat and closes it. A wear of the components is always expressed in another closed position of the closing element against the valve seat.
- the wear sensor device detects the position of the closing element directly on the closing element itself. In this case, when replacing but possibly also the wear sensor device to be replaced. It is therefore advantageous if the position of the closing element can be indirectly detected by the wear sensor device.
- the closing element is preferably coupled to an actuator and the wear sensor device is set up such that it determines the position of the closing element indirectly via the configuration and / or the position of this actuator.
- the actuator is a pressure diaphragm which bulges by pressure, whereby a Axiälbewe- movement of the closing element can be effected by the pressure diaphragm;
- the wear sensor device comprises a distance sensor, by which the distance between a measuring point on the pressure membrane and a reference point can be detected, so that the pressure membrane serves as a measuring membrane.
- the measured change in distance can advantageously correspond to the movement path of the closing element.
- the pressure regulator is equipped with a wear sensor device, it is particularly advantageous if the pressure regulator has a modular design and comprises a base housing with at least one module compartment for functional modules.
- the pressure regulator comprises at least one exchangeable valve seat module, which is insertable into a module space of the base housing and having a flow channel in which the valve seat is arranged and which forms a portion of the fürflußströmungsweges when the valve seat module is inserted into the module space , If the valve seat is no longer faultless, the worn valve seat module can be exchanged for an unimpaired valve seat module without the pressure regulator having to be disconnected from the connected fluid-carrying line for this purpose.
- the at least one valve seat module comprises the closing element.
- the pressure regulator preferably includes at least one removable control piston module, which is used in egg ⁇ NEN module space of the base housing and having a control piston which partially defines a variable flow space which forms a portion of the through flow path when the control piston module is inserted into the module space.
- the pressure regulator comprises an integrated Druckein ⁇ which built up from a plurality of pneumatic modules is, which each comprise a compressed air membrane, which bulges by pressure, wherein an axial movement of the closing element is effected by the pressure membranes.
- the wear sensor device can always remain on the pressure unit.
- the modular pressure regulator each comprises a set of valve seat modules, control piston modules and compressed air modules, each structurally different from a corresponding functional module of the same family.
- the mode of action of the pressure regulator can be adjusted by replacing the function modules. This will be discussed again below.
- the diameters of the closure member or the valve seat may vary with different valve seat modules.
- FIG. 1 in section separately shown modules of a modular pressure regulator with a wear sensor device and with interchangeable valve seat modules and control piston modules and a pressure unit with coupled compressed air modules, each two different modules are shown, which can be combined with one and the same basic housing of the pressure regulator;
- FIG. 2 is a section of an assembled pressure regulator in a closed configuration, the pressure unit comprising a single compressed air module;
- FIG. 3 shows a section corresponding to FIG. 2 of an assembled pressure regulator in a flow-through configuration, the pressure unit of which comprises two compressed-air modules;
- FIG. 4 shows a section of a pressure regulator with a further modified control piston module and valve seat module, so that the pressure regulator can operate as a back pressure regulator;
- Figure 5 shows a section of a pressure regulator with wear sensor device in its closed position
- Figure 6 is a section of the pressure regulator of Figure 5 in a flow configuration
- Figure 7 shows a section of the pressure regulator according to Figures 5 and 6 ⁇ ⁇ its closed position, wherein a wear of a valve seat and a closing element are illustrated.
- 10 designates a total of a modular pressure regulator, which is used for the regulation of the pressure in a not specifically shown medium-carrying line.
- the pressure regulator 10 is used in a coating plant to regulate the pressure in a paint line,
- an application device such as a spray gun or a rotary atomizer.
- the modular pressure regulator 10 comprises a base housing 12, which with interchangeable function modules in the form of valve seat modules 14, control piston modules 16 and a pressure unit 18 which in turn can be built up as a compressed air cascade coupled compressed air modules 20 work together and can be combined.
- a base housing 12 which with interchangeable function modules in the form of valve seat modules 14, control piston modules 16 and a pressure unit 18 which in turn can be built up as a compressed air cascade coupled compressed air modules 20 work together and can be combined.
- the pressure unit 18 also includes a connecting element 22, which is formed in the present embodiment as a connection plate 24. This will be discussed again below.
- FIGS. 2 to 7 each show an assembled pressure regulator 10 with the components 12, 14.1, 16.1, 20.1 or 20.1 and 20.2 and 22 respectively. There, for clarity, not all components are provided with reference numerals.
- the base housing 12 of the pressure regulator 10 is designed as a housing body 26 with a cylindrical outer circumferential surface 28 and defines a first module space 30 for one of the valve seat modules 14 and a second module space 32 for one of the control piston modules 16.
- the module spaces 30, 32 are coaxial with each other and in the axial direction one behind the other arranged and merge into each other, wherein the first module space 30 has a smaller cross-section than the second module space 32.
- the transition between the two module spaces 30, 32 is formed as a circumferential step surface 34, which faces the second module space 32.
- the module spaces 30 and 32 are each accessible from the opposite end faces 36 and 38 of the base housing 12 from the outside, so that valve seat modules 14 and control piston modules 16 in the first module ⁇ space 30 and the second module space 32 can be used or removed from these ,
- the moduli spaces 30, 32 have in the present embodiment ⁇ example, a circular cross section, but may also have deviating cross sections thereof.
- the base housing 12 further includes an inlet channel 40 extending between the outer jacket surface 28 and the first module space 30.
- An angled outlet channel 42 extends between the step surface 34 and the outer lateral surface 28 of the base housing 12.
- the inlet channel 40 and the outlet channel 42 can be connected by means of respective ports 40a and 42a to the medium-carrying line in which the pressure regulator 12 is to be arranged.
- the valve seat modules 14 each have a hollow valve housing 44 with an outer contour which is complementary to the inner contour of the first module space 30 of the base housing 12.
- the valve housing 44 defines a flow channel 46 that extends between an inlet opening 48 and an outlet opening 50.
- the inlet port 48 is formed, positioned and dimensioned to be fluid tight with the inlet channel 40 of the base housing 12 when the valve seat module 14 is inserted into the first module space 30 of the base housing 12.
- the outlet opening 50 then opens to the second module space 32 of the base housing 12.
- a valve seat 52 is arranged, which can be closed or released by a closing element 54 which is movably mounted in the valve housing 44 between a closed position and a release position, so that the flow of medium can be selectively blocked or released.
- the closing element 54 is biased by a spring 56 in its closed position.
- valve seat modules 14.1 and 14.2 In the case of two mutually different valve seat modules 14.1 and 14.2, for example, the respective valve seats 52 and the respective flow channels 46 have at least in the region downstream of the valve seats 52 different diameters. Also, the closing elements 54 may have different configurations, which are adapted to the respective existing valve seat 52. This can be seen in Figure 1 the example of the two valve seat modules 14.1 and 14.2.
- the control piston modules 16 each have a piston housing 58 with an outer contour which is complementary to the inner contour of the second module space 32 of the base housing 12.
- the piston housing 58 delimits a piston chamber 62 which is open toward a flow side 60 of the piston housing 58.
- a control piston 64 is slidably mounted, which carries a coaxial plunger 66 on its facing the flow side 60 piston surface.
- a piston rod 68 which extends through the piston housing 58 and on a pressure side 70, which is the flow side 60, out of the Kol ⁇ bengephinuse 58 out.
- the piston rod 68 carries a coupling stub 72, which in turn cooperates with a compressed air module 20. This will be returned further below.
- a control piston module 16 is inserted with its flow side 60 and the plunger 66 ahead in the second module space 32 of the base housing 12 and is located with the flow ⁇ side 60 at the stage 32 of the base housing 12 at.
- a valve seat module 12 is in the first module space 30 of the base ⁇ housing 12 projects the, plunger 66 through the outlet ⁇ opening 50 of the valve seat module 12 in the flow channel 46 into and rests against the closure element 54, as with reference to FIGS 2 to 7 can be seen.
- the control piston 64 delimits a variable flow space 74 which extends between the flow channel 46 in the valve seat module 14 and the outlet channel 42 in the base housing 12.
- the control piston 64 limits this variable flow space 74 together with the piston chamber 62, the step surface 34 and the valve seat module 14.
- the volume of the variable flow chamber 74 depends on the one hand on the position of the control piston 64 and on the other hand from the dimensions of the piston chamber 62 and the control piston 64 from.
- Diameter It may happen that these diameters are so small that the formed flow space 74 no longer leads directly to the outlet passage 42 in the main housing 12; This is illustrated for example in the control piston module 16.2 in Figure 1.
- a branch channel 76 goes off, so that a flow connection between the flow chamber 74 and the outlet channel 42 is secured in the base housing 12, when the corresponding control piston module 16 in the second module ⁇ room 32nd located.
- the valve seat 52 there is a total of one passage flow path 78 extending between the ports 40a and 42a and in which the valve seat 52 is disposed.
- the naturalflußströmungsweg 78 is formed by the inlet channel 40 in the base housing 12, through the flow ⁇ channel 46 in the valve seat module 14, through the variable Strö ⁇ tion space 74 and through the outlet passage 42 in the base housing 12.
- the closing element 54 By the closing element 54, the advertising by ⁇ gangsströmungsweg 78 thus released or closed the .
- the flow path 78 can only be seen in FIGS. 2, 3 and 5 to 7. There and in FIG. 4, for the sake of clarity, not all of the explained components are provided with a reference numeral.
- control piston 62 The control of the control piston 62 and in this way the control of the closing element 54 via the pressure unit 18 which is mounted on the operable pressure regulator 10 on the side of the base housing 12 on which the control piston module 16 is located.
- An air pressure module 20 comprises a compressed air housing 80 with a working space 82 which is covered on one side by a pressure diaphragm 84, which can act on a guided in the working space 82 coupling piston 86.
- the pressure module 20.1 shown in FIG. 1 is a coupling module 88 whose working space 82 is open on the side remote from the pressure membrane 84, so that the piston rod 68 of the control piston module 16 can project into the working space 82 of the coupling module 88 on its pressure side.
- the coupling stub 72 of the piston rod 68 engages in the assembled state of the components in a coupling receptacle 90 in the coupling piston 86 a. This can be seen in Figures 2 to 7.
- the printing unit 18 comprises the coupling module 88 and the above-mentioned at ⁇ closing plate 24.
- the pressure chamber 92 of the connection plate 24 engages over the pressure membrane 84 of the coupling module 88 in the assembled state.
- Closing element 54 and the valve seat 52 then forms a circumferential annular gap 96, as can be seen in Figures 3 and 6.
- the curvature of the pressure membrane 84 causes an axial movement of the closing element 54.
- the printing module 20.2 of the printing unit 18 shown in FIG. 1 is a reinforcing module 98.
- components which correspond to those of the coupling module 88 are provided with the same reference numerals.
- the local working space 82 is not open on the side remote from the pressure membrane 84, but closed by an intermediate wall 100 through which in turn a plunger 102 is guided, which is connected in the working space 82 with the coupling piston 86.
- the working space 82 is connected via a not specifically shown bore for pressure relief with the environment in connection.
- a connecting channel 104 is still present, which extends axially parallel to the working space 82 through the compressed air housing 80 and also through the pressure membrane 84 therethrough.
- the amplifier module 98 is between the coupling. module 88 and the terminal plate 24 of the printing unit 18; This is shown in FIG. 3. If the connection 94 of the connection plate 24 is subjected to compressed air there, it first flows into the pressure chamber 92 above the pressure membrane 84 the amplifier module 98, where it acts on the pressure membrane 84. This presses the plunger 102 against the
- Pressure diaphragm 84 of the coupling module 88 which again affects its coupling piston 86 and the control piston 64 coupled thereto and the closing element 54 of the valve seat module 14, as explained above.
- compressed air also flows via the connecting channel 104 from the pressure chamber 92 of the amplifier module 98 into the pressure chamber 92 of the coupling module 88.
- the pressure membrane 84 of the coupling module 88 on the one hand mechanically by the plunger 102 of the amplifier module 98 and on the other hand pneumatically by the applied compressed air acted upon with a force. Since the compressed air now acts on two pressure membranes 84, the effective area for the compressed air, which can be used to transmit a force to the control piston 64, about twice as large as in the case where only the coupling module 88 is used.
- This pressure cascade can be extended if the Druckein ⁇ unit 18 is constructed not only of the coupling module 88 and a single amplifier module 98, but from the coupling module 88 and two or more amplifier modules 98.
- the individual components of the printing unit 18 are coupled together by connecting screws 106, which are adapted in their length to the respective dimension of the resulting printing unit 18 and only in the figures 1 to 3 are marked.
- Pressure regulator 10 according to Figures 1 to 3 and 5 to 7 is the case.
- this modification come another modified Valve seat module 14.3 and another modified control piston module 16.3 to wear.
- the closing element 54 is not arranged in the valve housing 44 of the valve seat module 14.3, but is supported by the control piston 64 of the control piston module 16.3 instead of the plunger 66.
- the valve seat 52 is arranged corresponding to the closing element 54 in the flow channel 46 of the valve seat module 14.3.
- the pressure regulator 10 also includes a wear sensor device 108, with which a wear on the closing element 54 and / or the valve seat 52 of the pressure regulator 10 can be monitored during operation.
- the wear sensor device 108 is set up such that with it the position of the closing element 54 relative to a reference zero position can be detected.
- the detection of the position of the closing element 54 can be effected indirectly or directly.
- the reference zero position of a closing element 54 is defini ⁇ tion according to when an unobstructed Scheller ⁇ element 54 assumes its closed position and against a not ⁇ impaired valve seat 52 abuts and this closes.
- the measurement of the position of the closing member 54 is effected as by indirectly ⁇ which is detected the configuration of at least one Druckmemb ⁇ ran 84 in the printing unit 18 as a measuring membrane 110 is used.
- the configuration of the measuring diaphragm 110 reflects the position of the closing element 54 again.
- the pressure membrane 84 of the compressed air module 20 adjacent to the connection plate 24 is always used as the measuring membrane 110. If one or more reinforcing modules 98 is present, this is then the pressure membrane 84 of the correspondingly arranged reinforcing module 98, otherwise the pressure membrane 84 of the coupling module 88 serves as the measuring membrane 110.
- connection plate 24 carries a distance sensor 112 which can detect the distance between a measuring point 114 on the measuring diaphragm 110 and a reference point 116, for example an area of the distance sensor 112 itself. The measured distance in turn reflects the curvature of the measuring diaphragm 110 again.
- the distance between the measuring point 114 and the reference point 116 is measured in a direction parallel to the direction of movement of the closing element 54.
- the measurement is coaxial with it.
- the measured curvature can be compared with a reference curvature which the measuring diaphragm 110 has when the closing element 54 assumes its reference zero position.
- a reference curvature which the measuring diaphragm 110 has when the closing element 54 assumes its reference zero position.
- the pressure diaphragm 84 in this case is in each case flat and the distance then measured by the distance sensor 112 defines the reference value for the reference curvature of the measuring diaphragm 110 and for the reference zero position of the closing element 54.
- Closing element 54 away from the sealing seat 52 This is shown in FIGS. 3 and 6.
- the passage cross-section of the above-described annular gap 96 can also be detected and monitored via the distance determined in this way.
- the pressure diaphragm 84 serving as the measuring diaphragm 110 is, in general terms, an actuator which is coupled to the closing element 54, wherein the wear sensor device 108 determines the position of the closing element 54 indirectly via the configuration and / or position of this actuator.
- control piston 64 could serve as such an actuator.
- a piston which can be moved under pressure can serve as an actuator whose movement is transmitted to the closing element 54.
- the coupling piston 86 can form the actuator and for this purpose abdich ⁇ th against the surrounding compressed air housing 80, wherein the coupling receptacle 90 is formed for the coupling sleeve 72 of the piston rod 68 in this case as a blind hole. Then possible to dispense with the pressure membrane 84 ..
- the measuring point 114 is in this case on the sealing coupling piston 86 and the wear sensor 108 detects the distance between the coupling piston 86 and the Re ⁇ conference location 116.
- FIG 7 now illustrates a wear of both the closure member 54 and the valve seat 52.
- the head of the closure member 54 is for this purpose shown smaller than in Figures 5 and 6 and the valve seat 52 has none sharp peripheral edge more like in Figures 5 and 6, but is worn to a curved surface.
- the closing element 54 projects further into the valve seat 52 in its closed position than is the case in the unworn configuration. This is also the case when only the closure member 54 or only the valve seat 52 show signs of wear.
- control piston 64 is also further pushed back into the pressure unit 18 and the pressure membrane 84, i. the measuring diaphragm 110 is pressed further in the direction of the connection plate 24. Then, in the closed position of the closing element 54, the distance between the measuring point 114 of the measuring diaphragm 110 and the reference point 114 at the distance sensor 112 is smaller than in the case of the reference curvature of the measuring diaphragm 110.
- the pressure regulator 10 of FIG. 4 When the pressure regulator 10 of FIG. 4 operates as a back pressure regulator, the conditions are reversed: If the closing element 54 and / or the valve seat 52 there is worn, the distance of the measuring point 114 of the measuring diaphragm 110 from the reference point 114 at the distance sensor 112 is greater than at Reference curvature of the measuring diaphragm 110.
- a threshold value can be predetermined, which defines a tolerable deviation of the curvature of the measuring diaphragm 110 from the reference curvature and thus also a tolerable deviation of the position of the closing element 54 from its reference zero position, so that an indication of an indication only occurs when this threshold value is exceeded is.
- the distance sensor 112 is formed as a tactile pressure sensor 118.
- the pressure sensor 118 comprises a measuring plunger 120, which can press against the measuring diaphragm 110.
- the pressure sensor 118 may be present as a piezoelectric pressure sensor known per se or else in the form of other customary pressure sensors, in particular capacitive or inductive pressure sensors may be considered.
- the distance sensor 112 may be formed as a non-contact distance sensor. For this purpose, for example, an ultrasonic sensor or an optical sensor can be used, as they are known per se.
- the position of the closure member 54 may also be detected and monitored immediately.
- a distance sensor 112 may be installed on the valve seat module 14 used in each case, which detects the distance to the closing element 54.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013001979.6A DE102013001979A1 (en) | 2013-02-05 | 2013-02-05 | pressure regulator |
PCT/EP2014/000105 WO2014121887A1 (en) | 2013-02-05 | 2014-01-16 | Pressure regulator |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2954379A1 true EP2954379A1 (en) | 2015-12-16 |
Family
ID=50068961
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14703026.6A Withdrawn EP2954379A1 (en) | 2013-02-05 | 2014-01-16 | Pressure regulator |
Country Status (6)
Country | Link |
---|---|
US (1) | US9835266B2 (en) |
EP (1) | EP2954379A1 (en) |
CN (1) | CN104903808B (en) |
DE (1) | DE102013001979A1 (en) |
RU (1) | RU2645871C2 (en) |
WO (1) | WO2014121887A1 (en) |
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DE102008064359A1 (en) * | 2008-12-22 | 2010-07-01 | Abb Technology Ag | Method for the position-dependent determination of electronic wear status of a valve mechanism and pneumatic valve |
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2013
- 2013-02-05 DE DE102013001979.6A patent/DE102013001979A1/en not_active Withdrawn
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2014
- 2014-01-16 CN CN201480004022.3A patent/CN104903808B/en active Active
- 2014-01-16 EP EP14703026.6A patent/EP2954379A1/en not_active Withdrawn
- 2014-01-16 US US14/765,883 patent/US9835266B2/en active Active
- 2014-01-16 RU RU2015126894A patent/RU2645871C2/en not_active IP Right Cessation
- 2014-01-16 WO PCT/EP2014/000105 patent/WO2014121887A1/en active Application Filing
Non-Patent Citations (2)
Title |
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None * |
See also references of WO2014121887A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN104903808B (en) | 2019-11-26 |
US9835266B2 (en) | 2017-12-05 |
DE102013001979A1 (en) | 2014-08-07 |
RU2015126894A (en) | 2017-01-10 |
WO2014121887A1 (en) | 2014-08-14 |
CN104903808A (en) | 2015-09-09 |
US20150369393A1 (en) | 2015-12-24 |
RU2645871C2 (en) | 2018-02-28 |
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