EP2780624B1 - Gasflaschenventil mit einem schwungrad zur steuerung eines restdruckventils und eines sperrventils - Google Patents

Gasflaschenventil mit einem schwungrad zur steuerung eines restdruckventils und eines sperrventils Download PDF

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Publication number
EP2780624B1
EP2780624B1 EP12784029.6A EP12784029A EP2780624B1 EP 2780624 B1 EP2780624 B1 EP 2780624B1 EP 12784029 A EP12784029 A EP 12784029A EP 2780624 B1 EP2780624 B1 EP 2780624B1
Authority
EP
European Patent Office
Prior art keywords
tap
residual pressure
valve
track
shutter
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.)
Not-in-force
Application number
EP12784029.6A
Other languages
English (en)
French (fr)
Other versions
EP2780624A1 (de
Inventor
Morgan Lamiable
Adrien ZODA
Jean-Claude Schmitz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Luxembourg Patent Co SA
Original Assignee
Luxembourg Patent Co SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Luxembourg Patent Co SA filed Critical Luxembourg Patent Co SA
Publication of EP2780624A1 publication Critical patent/EP2780624A1/de
Application granted granted Critical
Publication of EP2780624B1 publication Critical patent/EP2780624B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0329—Valves manually actuated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0335—Check-valves or non-return valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/035—High pressure (>10 bar)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/036—Very high pressure (>80 bar)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/04—Methods for emptying or filling
    • F17C2227/048—Methods for emptying or filling by maintaining residual pressure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87917—Flow path with serial valves and/or closures
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87917—Flow path with serial valves and/or closures
    • Y10T137/88046—Biased valve with external operator

Definitions

  • the invention relates to a valve, in particular for a gas cylinder, more particularly to a valve, in particular for a gas cylinder equipped with a residual pressure maintenance function.
  • Gas cylinder valves are currently commonly equipped with a residual pressure holding device.
  • the residual pressure is typically of the order of a few bars (such as 3 bars or 44 psi). This device prevents the penetration of impurities by possible reflux in the bottles in use, or by contact with the atmosphere in unconnected bottles and whose valve and remained open.
  • This type of device usually consists of a calibrated valve arranged upstream of the valve valve.
  • This valve is arranged so that elastic means exert a closing force, the valve being configured so that the high pressure present in the bottle pushes easily the valve so as to open when there is a request for debit.
  • the valve closes, preventing any backflow.
  • the bottle is almost empty to the point that the pressure within it is lower than the calibration pressure necessary to open the valve, no gas can be withdrawn.
  • the valve remains permanently closed, the contents of the bottle remains isolated from the outside even when the tap valve is open.
  • the residual pressure valve When filling the gas cylinder via the tap, the residual pressure valve, by its construction, will naturally remain closed. It is then necessary to force its opening to allow the filling of the bottle.
  • the patent document US 5,048,565 discloses a gas cylinder valve provided with a closing valve, a residual pressure valve and a safety valve.
  • the residual pressure valve can be controlled in the open position for filling via a device pneumatically or mechanically controlled opening (eg via a lever or an external tool).
  • the patent document EP 0 372 279 A1 discloses a residual pressure valve which can be put in the open position by rotation of a control member in a quarter of a turn.
  • the valve and the control member are equipped with a cam device for converting the rotational movement of the control member into a translation movement of the valve.
  • the control opening a residual pressure valve as disclosed in the two documents mentioned above is in principle reserved for qualified personnel for filling bottles. It is indeed important that the valve can not be opened outside the filling operations.
  • the opening of the valve requires a particular procedure such as an auxiliary compressed air connection or such as the intervention of particular tools.
  • the patent document US 3,820,560 discloses a diving cylinder valve comprising a residual pressure valve equipped with a control lever.
  • the latter acts in rotation on an axis provided with cam profiles acting on a corresponding part acting itself on the moving part of the residual pressure valve.
  • Actuation of the lever makes it possible to force the valve in the open position.
  • the valve has a movable seat that allows the filling of the bottle without having to open the valve by means of the lever.
  • the lever allows easy opening of the valve but no security is provided to prevent opening of the valve when the bottle is in use.
  • the tap of this teaching is indeed intended to provide a supply of oxygen during scuba diving.
  • the operation of the lever is intended to give access to this reserve.
  • the patent document EP 0 708 281 A1 discloses a valve with a rotary control member and a residual pressure holding device adapted to be held in the open position by the rotary control member.
  • the residual pressure maintenance device comprises a shutter mounted to slide and coupled to a rod of animated control in rotation and translation by the rotary control member.
  • the patent document FR 2 657 668 A1 discloses a valve according to the preamble of claim 1.
  • the thread of the rotary control member of the valve is treated as a control track.
  • the control member in question then participates in the forced opening of the residual pressure maintenance device.
  • the insertion of an external tubing into the outlet orifice is, however, necessary to complete the operation of forced opening of the residual pressure holding device for filling a bottle on which the valve is mounted.
  • the patent document FR 2,244,123 discloses a gas cylinder valve comprising a closure valve and a purge valve of the valve outlet and the pipe connected thereto. These two valves are controlled by a rotary control member comprises at least one control track.
  • the technical problem to be solved by the invention consists in proposing a valve for a gas cylinder equipped with a device for maintaining residual pressure and whose filling operation is facilitated.
  • the invention relates to a valve for gas under pressure, in particular for a gas cylinder, comprising: a body with an inlet, an outlet and a passage connecting the inlet with the outlet; a device for maintaining a residual pressure at the inlet when the valve is in use, the device being arranged in the passage between the inlet and the outlet; a rotational control member disposed on the body configured to control the forced opening of the residual pressure holding device so as to deactivate it; an auxiliary device separate from the residual pressure maintaining device; the rotary control member comprising at least one control track configured so that the rotation of the control member can control the residual pressure maintaining device and the auxiliary device; and a first control rod of the residual pressure maintaining device cooperating with the track or one of the tracks of the rotary control member; remarkable in that it further comprises a second control rod of the auxiliary device cooperating with the track or one of the tracks of the rotary control member, the second rod being disposed at least substantially parallel to the first rod.
  • the residual pressure maintaining device is active when it performs its function of maintaining residual pressure. In service flow, it is open. When there is no flow but sufficient pressure in the bottle, it can be either open or closed, depending on its construction. It is inactive when it is in the forced open position.
  • the valve can be dimensioned for gases under a pressure of more than 50 bar, more particularly more than 100 bar.
  • the rotary control member has a general disc shape, and is preferably disposed outside the body.
  • the rotary control member may be of plastics material.
  • the body and / or the rotary control member may comprise indexing means.
  • the body and / or the rotary control member may comprise locking means to a particular position such as the filling position.
  • the body comprises a circular groove on which the rotary control member is clipped.
  • the auxiliary device is a closure device of the passage, preferably disposed downstream of the residual pressure maintenance device.
  • the rotary control member comprises a first filling position of the bottle where the residual pressure maintaining device is in the forced opening position (that is to say is deactivated). , and preferably the closing device, is open; a second closing position of the bottle where the residual pressure maintaining device is active and the closing device is closed; a third service position where the residual pressure maintaining device is active and the closing device is open; the first, second and third positions being preferably consecutive with respect to the rotation of the rotary control member.
  • the rotary control member comprises a first track intended to control the residual pressure maintenance device and a second track intended to control the auxiliary device, the first track and / or the second track.
  • track preferably having recesses corresponding to stop positions and configured to generate at the rotary control member a feeling of said stop positions.
  • the residual pressure holding device and the auxiliary device each comprise an element that is able to move in translation in at least substantially parallel directions, the control member being rotatable about a axis of rotation at least substantially parallel to these directions.
  • the valve body comprises a gas inlet connection with a main axis, and a longitudinal axis generally parallel to the main axis of said coupling, the translation directions of the moving elements of the residual pressure holding device and the auxiliary device being at least substantially perpendicular to said longitudinal axis.
  • the first and the second rod are disposed on either side of an axis of rotation of the rotary control member.
  • the auxiliary device comprises a shutter cooperating with a seat and normally brought into contact with said seat by elastic means in a direction corresponding to that of the gas when the valve is in use, the second control rod being configured to move the shutter in a direction opposite to the direction of the force exerted by the elastic means.
  • the first and / or the second control rod comprises / each comprise an abutment limiting their movement in the direction opposite to that of control.
  • the first and / or second control rod comprises / each comprise a contact portion with the one or more control tracks of the rotary control member, the one or more contact portions normally exceeding the body.
  • the residual pressure maintaining device comprises a shutter cooperating with a preferably fixed seat, and normally brought into contact with said seat by elastic means in a direction corresponding to that of the gas when the faucet is in use.
  • the shutter comprises a first portion cooperating with the seat and having a first section, and a second portion of a second section greater than the first section, the first and second portions delimiting with the body a first high pressure chamber in contact with the inlet of the valve, the second portion comprising sealing means cooperating with a corresponding surface.
  • the second portion of the shutter defines with the body a second chamber in contact with the passage of the body downstream of the first portion and the seat via a shutter channel.
  • the measures of the invention have the advantage of ensuring control of the residual pressure maintenance device coordinated with an auxiliary device such as a valve closing / opening the valve. In this way, the residual pressure maintaining device can remain normally closed during normal operation of the tap (it being understood that the residual pressure maintaining device opens automatically when there is a demand for gas flow) .
  • the construction is particularly simple and easy to implement.
  • the figure 1 illustrates a valve for a gas cylinder, according to the invention.
  • the valve 2 comprises a body 4, preferably generally solid.
  • the body 4 comprises a connection connection 6 to a gas cylinder (not shown). This connection is in the form of conical male thread and corresponds to an inlet 7 of the tap.
  • the body 4 also comprises a gas outlet 9.
  • the valve is provided with a flywheel 8 disposed laterally on the body 4. This flywheel 8 is a control wheel of a residual pressure maintenance device and a valve of the tap.
  • the figure 2 which is a sectional view along the axis 2-2 of the figure 1 , illustrates the interior of the top of the faucet.
  • the body encloses a valve 14 for closing the passage 10 connecting the gas inlet ( figure 1 , reference 7) with exit 9.
  • the body comprises a chamber 22 connected with the entry 7 ( figure 1 ) via a residual pressure holding device ( figure 3 , reference 38).
  • the chamber contains a shutter 16 held in pressure against a seat 18 by a spring 20.
  • the spring 20 bears on the bottom of the chamber 22.
  • the seat 18 consists of a pellet with a central hole, made of material suitable for ensure sealing with the shutter 16.
  • the latter may be of metal material and the seat may be of plastic material such as for example nylon.
  • the seat 18 is sandwiched between a shoulder formed in the body 4 of the valve and a seat support 26 held in pressure against the shoulder by a clamping piece 30 screwed into a cavity of the body 4.
  • a seal 28 as well as optionally an anti-extrusion ring are provided between the seat support 26 and its housing in the body 4. This is a static seal since the seat support 26 is stationary.
  • the seat support 26 includes a central bore extending along its main axis. This bore accommodates a control rod 12 of the shutter 16 of the valve 14.
  • the control rod 12 comprises a groove with a seal 24 and optionally an anti-extrusion ring so as to seal with the bore of the seat support 26 in which she is lodged.
  • the seal is dynamic because the control rod is able to move in translation along its main axis. It also comprises a shoulder intended to bear against a corresponding shoulder of the clamping piece 30. A first end (to the left following the figure 2 ) is in front of the shutter 16 and a second end (on the right following the figure 2 ) leaves the body 4 of the valve and cooperates with a profiled surface of the wheel 8.
  • the valve 14 is configured so that the shutter 16 is disposed on the upstream side of the seat 18 and the spring 20 normally holds it in pressure against the seat 18. In this way, the valve closes naturally and the pressure of the bottle also exerts pressure on the shutter 16 directed towards the seat 18. As will be explained in more detail in connection with the Figures 3 and 4 , the rotation of the wheel 8 to open the valve 14 will move the control rod 12 to the shutter 16 so as to move it away from its seat 18 and allow the passage of gas from the chamber 22 to the outlet 9.
  • control rod 12 In closed position of the valve, corresponding to that illustrated in figure 2 , the control rod 12 is not pressurized between the profiled surface of the wheel 8 and the front face of the shutter 16, so as to ensure a satisfactory seal and to allow a matting or tamping of the seat in function the pressure exerted and according to the number of cycles and / or the age of the tap.
  • the control rod 12 in the closed position of the valve 14, has at least one of its ends at a distance from its respective contact surface according to a suitable mechanical clearance.
  • the figure 3 which is a longitudinal sectional view of the faucet of the figure 1 , illustrates well the interior of the faucet.
  • the passage 10 made in the body 4 connects the inlet 7 to the outlet (not visible in this figure but on the figure 2 , reference 9).
  • the passage opening towards the top of the valve body is in direct communication with the chamber containing the valve 14. It may be intended to be connected to a manometer. It should be noted that the faucet shown in Figures 1 to 3 is incomplete at the top.
  • the body 4 encloses a device for maintaining residual pressure 38 in the bottle.
  • the latter is disposed at the passage 10 connecting the inlet 7 to the valve outlet, upstream of the valve 14.
  • It essentially comprises a shutter 43 cooperating with a seat 41, similarly to the valve 14, but with the important difference that the shutter defines a first chamber 39 with variable volume upstream of the seat 41.
  • the shutter 43 in fact comprises a first portion 44 cooperating with the seat 41 of the body 4 of the valve, and a second portion 42 sealingly sliding with a body wall 4. This wall may be formed by a piece 40 attached in a bore of the body, as illustrated in FIG. figure 3 .
  • the second portion 43 has a section greater than that of the first portion 44, which allows the application of the pressure from the bottle to generate a resultant force on the shutter 43 facing the second portion.
  • This force is opposed to the force of the spring or springs 46 arranged between the screwed piece 40 and the face of the shutter 43 corresponding to the second portion.
  • the elastic force of the springs 46 and the difference in section between the second and first portions are dimensioned so as to allow a displacement of the shutter and, therefore, the opening of the gas passage from a given pressure.
  • This minimum pressure for the opening of the residual pressure maintaining device may be of the order of a few bars, such as 3 bars. This pressure corresponds to the residual pressure that will be in the bottle when the contents of the latter have been consumed and that it will no longer deliver gas.
  • a channel 45 formed in the shutter 43 connects a second chamber 47 with the gas passage 10 directly downstream of the shutter 43.
  • the second chamber 47 is defined by the housing of the shutter 43 and its rear face corresponding to its second portion 42. If one tries to fill the bottle without first opening the residual pressure maintaining device, the filling pressure will be established in the chamber 47 which has an effective section corresponding to the second portion of the shutter , this section being greater than that of the first portion. This then results in a force on the shutter directed in the closing direction of the latter.
  • a control rod 36 is partially disposed in the gas passage 10 directly downstream of the seat 41 and the shutter 43 of the residual pressure holding device 38.
  • This control rod is similar to the control rod 12 of the valve 14. It is slidably mounted in a bore of the body 4, parallel to the control rod 12. It also has a shoulder intended to cooperate with a corresponding shoulder of the body 4, so as to limit its movement in the closing direction of the device residual pressure maintenance 38.
  • a spring is also provided to assist the movement of the rod 36 towards the flywheel 8. Sealing means such as a seal possibly accompanied by an anti-extrusion ring, are provided in a groove of the control rod 36, so as to seal with the bore of the body 4.
  • a first end of the control rod is vis-à-vis the first portion 44 of the shutter 43 and a second end is in contact with a profile surface of the flywheel 8. Similar to the valve 14, the control rod is sized to be able to work properly the device for maintaining residual pressure, and this despite any matting of the contact surfaces between the seat 41 and the shutter 43. To do this, a mechanical clearance is provided between the first end (the one on the left following the figure 3 ) of the control rod 36 and the shutter 43 when the steering wheel is in a position not acting on the residual pressure maintenance device.
  • the mechanical clearance may be between 0.1 mm and 2 mm, preferably between 0.1 and 1 mm, more preferably between 0.1 and 0.5 mm.
  • the flywheel 8 comprises a disc-shaped main part and a skirt formed by a series of sections 32 and 48, some of which 48 are provided with a hook-shaped part intended to cooperate with a groove 34 ( figure 3 ) formed on the body 2.
  • a first track 50 is intended to cooperate with the control rod 36 of the residual pressure maintenance device. It comprises a sliding surface for the corresponding end of the control rod, this sliding surface having a profile inclined so as to move the control rod during the rotation of the flywheel 8.
  • the first track 50 comprises two recesses or points rest for the corresponding end of the control rod.
  • a first hollow 52 corresponds to a first position of the control rod where it does not control the residual pressure maintenance device. This first hollow corresponds to a portion of the track where its profile is the lowest or remote from the body of the valve.
  • a second hollow 54 corresponds to a second position of the control rod where it forces the opening of the residual pressure maintenance device. The second hollow corresponds to a portion of the track where its profile is the highest or closest to the body of the valve.
  • the first track also includes a clearance zone 56 extending the track from the first depression 52. This clearance zone is designed not to move the corresponding control rod.
  • a second track 58 is intended to cooperate with the control rod 12 of the valve 14.
  • the second track comprises a sliding surface for the corresponding end of the control rod, this sliding surface having a inclined profile so as to move the control rod during the rotation of the wheel 8. It comprises three recesses or rest points for the corresponding end of the control rod.
  • a first hollow 64 disposed at a central portion of the track forming a lower portion of the track. The first depression corresponds to a position of the steering wheel where the valve is not controlled, that is to say is normally closed.
  • a second recess 60 and a third recess 62 are arranged, respectively, at the ends of the track 58. These ends correspond to high or near portions of the valve body.
  • the second and third hollows correspond to positions of the steering wheel where the valve is actuated, that is to say is put in the open state.
  • the first recess 52 of the first track 50 and the first recess 64 of the second track correspond to a closed position of the valve, that is to say a position where the valve and the residual pressure maintaining device are normally closed.
  • the control rods 12 and 36 are diametrically opposed to the center of rotation of the flywheel 8, so that the first recesses 52 and 64 of the first and second tracks are also diametrically opposed.
  • the second recess 54 of the first track 50 and the third recess 62 of the second track 58 correspond to a filling position of the bottle.
  • the second recess 54 of the first track 50 makes it possible to force the opening of the residual pressure holding device and the third recess 62 of the second track 58 ensures the opening of the valve 14.
  • the The opening of the valve 14 is in principle not necessary because of its construction in the form of a valve which can open naturally under the filling pressure.
  • the closing spring 20 of the shutter 16 of the valve 14 is powerful enough in particular to ensure a level of safety and sealing satisfactory for the faucet.
  • the pressure and, consequently, the flow rate resulting from the gas at the outlet of the valve during filling could be greatly reduced when the valve 14 passes in the absence of forced opening thereof. This is the reason why an opening of the valve 14 is provided during the filling of the bottle.
  • the second recess 60 of the second track 58 and the clearance zone 56 of the first track 50 correspond to a service position of the valve. Indeed, the second recess 60 provides a displacement of the control rod of the valve forcing its opening while the clearance zone 56 of the first track 50 ensures undisturbed operation of the residual pressure maintenance device.
  • the first and second tracks are concentric and describe, each, about a semicircle.
  • the two tracks have essentially the same radius. However, they could have different radii. In this case, the tracks could describe more than one semicircle.
  • the positioning of the control rods of the valve and the residual pressure holding device on either side of the center of rotation of the steering wheel allows a balancing of the pressures exerted by the rods on the steering wheel.
  • the control rods are arranged in a sector less than 180 °, more precisely 90 °, or even aligned on a spoke.
  • the first, second and third positions are consecutive with respect to the rotation of the rotary control member.
  • valve of the invention is not exclusively intended to be mounted on a gas cylinder. It can in particular be mounted on bodies or pipes of gas under pressure.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Preventing Unauthorised Actuation Of Valves (AREA)

Claims (14)

  1. Ventil (2) für Gas unter Druck, insbesondere für Gasflaschen, bestehend aus:
    - einem Korpus (4) mit einem Eingang (7), einem Ausgang (9) und einem Durchgang, der den Eingang mit dem Ausgang verbindet;
    - einer Vorrichtung zur Erhaltung des Restdrucks (38) am Eingang, wenn das Ventil in Betrieb ist, wobei die Vorrichtung (38) im Durchgang (10) zwischen dem Eingang (7) und dem Ausgang (9) angeordnet ist;
    - einem drehbaren Betätigungselement (8), das auf dem Korpus (4) angeordnet ist und dafür ausgelegt ist, um die Vorrichtung zur Erhaltung des Restdrucks (38) zwangsweise zu öffnen, um sie zu deaktivieren;
    - einer Hilfsvorrichtung (14), die von der Vorrichtung zur Erhaltung des Restdrucks (38) getrennt ist;
    wobei das drehbare Betätigungselement (8) mindestens eine Steuerbahn (50, 58) beinhaltet, die so ausgelegt ist, dass das Drehen des Betätigungselements (8) die Vorrichtung für die Erhaltung des Restdrucks (38) und die Hilfsvorrichtung (14) betätigen kann; und
    - einem ersten Steuerstab (36) der Vorrichtung für die Erhaltung des Restdrucks (38), der mit der Bahn oder einer der Bahnen (50) des drehbaren Betätigungselements (8) zusammenwirkt; und
    dadurch gekennzeichnet, dass das Ventil umfasst:
    - einen zweiten Steuerstab (12) der Hilfsvorrichtung (14), der mit der Bahn oder mit einer der Bahnen (58) des drehbaren Betätigungselements (8) zusammenwirkt, wobei der zweite Stab (12) mindestens im Wesentlichen parallel zum ersten Stab (36) angeordnet ist.
  2. Ventil (2) nach Anspruch 1, dadurch gekennzeichnet, dass das drehbare Betätigungselement (8) eine allgemein scheibenförmige Form besitzt und vorzugsweise außerhalb des Korpus (4) angeordnet ist.
  3. Ventil (2) nach Anspruch 2, dadurch gekennzeichnet, dass der Korpus (4) eine kreisförmige Nut (34) aufweist, auf der das drehbare Betätigungselement (8) eingerastet ist.
  4. Ventil (2) nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Hilfsvorrichtung (14) eine Vorrichtung zum Verschließen des Durchgangs (10) ist, die vorzugsweise stromabwärts der Vorrichtung für die Erhaltung des Restdrucks (38) angeordnet ist.
  5. Ventil (2) nach Anspruch 4, dadurch gekennzeichnet, dass das drehbare Betätigungselement (8) Folgendes beinhaltet:
    - eine erste Position für das Befüllen der Flasche, bei der sich die Vorrichtung für die Erhaltung des Restdrucks (38) in erzwungener geöffneter Position befindet und die Schließvorrichtung (14) vorzugsweise geöffnet ist;
    - eine zweite Position für das Schließen der Flasche, bei der die Vorrichtung für die Erhaltung des Restdrucks (38) aktiv und die Schließvorrichtung (14) geschlossen ist;
    - eine dritte Betriebsposition, bei der die Vorrichtung für die Erhaltung des Restdrucks (38) aktiv und die Schließvorrichtung (14) geöffnet ist;
    wobei die erste, zweite und dritte Position im Verhältnis zur Drehung des drehbaren Betätigungselements (8) vorzugsweise aufeinander folgen.
  6. Ventil (2) nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das drehbare Betätigungselement (8) eine erste Bahn (50) beinhaltet, die dazu bestimmt ist, um die Vorrichtung für die Erhaltung des Restdrucks (38) zu betätigen und eine zweite Bahn (58), die dazu bestimmt ist, um die Hilfsvorrichtung (14) zu betätigen, wobei die erste Bahn (50) und/oder die zweite Bahn (58) vorzugsweise Aussparungen (52, 54, 60, 62, 64) aufweisen, die Haltepositionen entsprechen und so konfiguriert sind, dass sie im Bereich des drehbaren Betätigungselements (8) eine Wahrnehmung der genannten Haltepositionen erzeugen.
  7. Ventil (2) nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Vorrichtung für die Erhaltung des Restdrucks (38) und die Hilfsvorrichtung (14) jeweils ein bewegliches Element (43, 16) beinhalten, das in Richtungen verschiebbar ist, die im Wesentlichen parallel verlaufen, wobei das Betätigungselement (8) um eine Achse herum rotiert, die parallel zu diesen Richtungen verläuft.
  8. Ventil (2) nach Anspruch 7, dadurch gekennzeichnet, dass der Korpus (4) des Ventils einen Anschluss (6) für den Gaseintritt beinhaltet, mit einer Hauptachse und einer Längsachse, die im Allgemeinen parallel zu der Hauptachse des genannten Anschlusses verläuft, wobei die Richtungen für die Verschiebung der beweglichen Elemente (43, 16) der Vorrichtung für die Erhaltung des Restdrucks (38) und der Hilfsvorrichtung (14) im rechten Winkel zu der genannten Längsachse verlaufen.
  9. Ventil (2) nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Hilfsvorrichtung (14) einen Verschluss (16) beinhaltet, der mit einem Sitz (18) zusammenwirkt und normalerweise anhand von elastischen Mitteln (20) mit dem genannten Sitz in Kontakt gebracht wird und dies in einer Richtung, die derjenigen des Gases entspricht, wenn das Ventil in Betrieb ist, wobei der zweite Steuerstab (12) so konfiguriert ist, dass er den Verschluss (16) in einer Richtung verschiebt, die der Richtung der Kraft, die von den elastischen Mitteln (20) ausgeübt wird, entgegengesetzt ist.
  10. Ventil (2) nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass der erste und/oder der zweite Steuerstab (36, 12) jeweils einen Anschlag beinhaltet/beinhalten, der ihre Bewegung in der Richtung, die der Betätigungsrichtung entgegengesetzt ist, begrenzt.
  11. Ventil (2) nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass der erste und/oder der zweite Steuerstab (36, 12) jeweils einen Kontaktabschnitt mit der oder einer der Steuerbahnen (50, 58) des drehbaren Betätigungselements (8) aufweist/aufweisen, wobei der oder die Kontaktabschnitt(e) normalerweise den Korpus (4) überragen.
  12. Ventil (2) nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass die Vorrichtung für die Erhaltung des Restdrucks (38) einen Verschluss (43) beinhaltet, der mit einem Sitz (41) zusammenwirkt, der vorzugsweise feststehend ist und normalerweise anhand der elastischen Mittel (46) mit dem genannten Sitz (41) in Kontakt gebracht wird und dies in einer Richtung, die derjenigen des Gases entspricht, wenn das Ventil in Betrieb ist.
  13. Ventil (2) nach Anspruch 12, dadurch gekennzeichnet, dass der Verschluss (43) einen ersten Abschnitt (44) beinhaltet, der mit dem Sitz (41) zusammenwirkt und einen ersten Teilabschnitt und einen zweiten Abschnitt (42) eines zweiten Teilabschnitts oberhalb des ersten Teilabschnitts hat, wobei der erste und der zweite Abschnitt (44, 42) mit dem Korpus (4) eine erste Hochdruckkammer (39) begrenzen, die mit dem Eingang (7) des Ventils in Kontakt ist, wobei der zweite Abschnitt (42) Dichtungsvorrichtungen beinhaltet, die mit einer entsprechenden Oberfläche zusammenwirken.
  14. Ventil (2) nach Anspruch 13, dadurch gekennzeichnet, dass der zweite Abschnitt (42) des Verschlusses (43) mit dem Korpus (4) eine zweite Kammer (47) definiert, die mit dem Durchgang (10) des Korpus (4) in Kontakt steht und dies stromabwärts des ersten Abschnitts (44) und des Sitzes (41) anhand eines Kanals (45) des Verschlusses (43).
EP12784029.6A 2011-11-15 2012-11-14 Gasflaschenventil mit einem schwungrad zur steuerung eines restdruckventils und eines sperrventils Not-in-force EP2780624B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU91901A LU91901B1 (fr) 2011-11-15 2011-11-15 Robinet pour bouteille de gaz équipé d'un volant commandant un clapet de pression résiduelle et un clapet de fermeture
PCT/EP2012/072632 WO2013072372A1 (fr) 2011-11-15 2012-11-14 Robinet pour bouteille de gaz équipé d'un volant commandant un clapet de pression résiduelle et un clapet de fermeture

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EP2780624A1 EP2780624A1 (de) 2014-09-24
EP2780624B1 true EP2780624B1 (de) 2018-01-03

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US (1) US9341312B2 (de)
EP (1) EP2780624B1 (de)
JP (1) JP6131958B2 (de)
DK (1) DK2780624T3 (de)
ES (1) ES2664645T3 (de)
IN (1) IN2014KN01163A (de)
LU (1) LU91901B1 (de)
WO (1) WO2013072372A1 (de)

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Publication number Priority date Publication date Assignee Title
LU100958B1 (en) 2018-10-11 2020-04-14 Luxembourg Patent Co Gas pressure reducer with integrated shut-off valve
LU100957B1 (en) 2018-10-11 2020-04-14 Luxembourg Patent Co Gas pressure reducer with cam commanded shut-off valve
FR3122237A1 (fr) * 2021-04-21 2022-10-28 Application Des Gaz Cartouche de gaz et ensemble comportant un dispositif de connexion d’appareil à gaz et une cartouche de gaz
EP4080108A1 (de) * 2021-04-21 2022-10-26 Application des Gaz Gaskartusche und anordnung mit einer vorrichtung zur verbindung eines gasgeräts mit einer gaskartusche
FR3122235B1 (fr) * 2021-04-21 2023-09-15 Applic Gaz Sa Dispositif de connexion d’appareil à gaz

Citations (1)

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FR2244123A1 (en) * 1973-09-18 1975-04-11 Gratzmuller J Gas bottle safety valve - shroud over operating button controls filler and discharge and purge valves

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US3820560A (en) 1973-01-29 1974-06-28 K Leemann Reserve valve mechanism permitting refilling of scuba tank regardlessof valve setting
JPS5120116A (en) * 1974-08-09 1976-02-18 Neriki Shokai Kk Atsuryokuyokyono jidogyakushishiki shudoben
JPS5650239Y2 (de) * 1978-08-28 1981-11-24
US4402340A (en) * 1981-05-01 1983-09-06 Lockwood Jr Hanford N Pressure-responsive shut-off valve
LU87400A1 (de) 1988-12-06 1990-07-10 Ceodeux Ventilanordnung zum fuellen und entleeren eines gasbehaelters
EP0386740B1 (de) 1989-03-10 1994-06-01 Kabushiki Kaisha Neriki Ventilanordnung mit Absperrventil für Gasbehälter
JP3143683B2 (ja) * 1989-03-10 2001-03-07 株式会社ネリキ 逆止弁付きボンベバルブ
LU87671A1 (fr) * 1990-01-31 1990-05-15 Ceodeux Sa Robinet pour gaz comprime ou liquifie
JPH07310833A (ja) * 1994-05-13 1995-11-28 Daito Valve Seisakusho:Kk ボンベバルブ
IT1271025B (it) * 1994-10-20 1997-05-26 Patreca Srl Valvola per bombole ad alta pressione con dispositivo per il mantenimento di una pressione residua allo svuotamento
DE19709096A1 (de) * 1997-03-06 1998-10-01 Vti Ventil Technik Gmbh Ventilarmatur für einen Druckbehälter
JP3083064U (ja) * 2001-06-29 2002-01-18 株式会社興和工業所 弁開度保持装置

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Publication number Priority date Publication date Assignee Title
FR2244123A1 (en) * 1973-09-18 1975-04-11 Gratzmuller J Gas bottle safety valve - shroud over operating button controls filler and discharge and purge valves

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Publication number Publication date
EP2780624A1 (de) 2014-09-24
WO2013072372A1 (fr) 2013-05-23
ES2664645T3 (es) 2018-04-20
US9341312B2 (en) 2016-05-17
US20140299800A1 (en) 2014-10-09
JP6131958B2 (ja) 2017-05-24
JP2014535029A (ja) 2014-12-25
DK2780624T3 (en) 2018-04-16
IN2014KN01163A (de) 2015-10-16
LU91901B1 (fr) 2013-05-16

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