EP3760912B1 - Cylinder for pressurised fluid - Google Patents

Cylinder for pressurised fluid Download PDF

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Publication number
EP3760912B1
EP3760912B1 EP20181320.1A EP20181320A EP3760912B1 EP 3760912 B1 EP3760912 B1 EP 3760912B1 EP 20181320 A EP20181320 A EP 20181320A EP 3760912 B1 EP3760912 B1 EP 3760912B1
Authority
EP
European Patent Office
Prior art keywords
piston
mobile
return member
cylinder
stop
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20181320.1A
Other languages
German (de)
French (fr)
Other versions
EP3760912A1 (en
Inventor
Antoine Frenal
Benjamin Fischer
Morgan Lamiable
Claude Risse
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.)
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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Publication date
Application filed by Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Publication of EP3760912A1 publication Critical patent/EP3760912A1/en
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Publication of EP3760912B1 publication Critical patent/EP3760912B1/en
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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
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/03—Orientation
    • F17C2201/032—Orientation with substantially vertical main axis
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/056—Small (<1 m3)
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/058—Size portable (<30 l)
    • 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
    • F17C2205/01—Mounting arrangements
    • F17C2205/0123—Mounting arrangements characterised by number of vessels
    • F17C2205/0126—One vessel
    • 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
    • F17C2205/01—Mounting arrangements
    • F17C2205/0123—Mounting arrangements characterised by number of vessels
    • F17C2205/013—Two or more vessels
    • 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
    • F17C2205/0308—Protective caps
    • 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
    • F17C2205/0382—Constructional details of valves, regulators
    • 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
    • F17C2205/0388—Arrangement of valves, regulators, filters
    • F17C2205/0394—Arrangement of valves, regulators, filters in direct contact with the pressure vessel
    • 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
    • F17C2223/036—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
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/043—Pressure
    • 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
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0486—Indicating or measuring characterised by the location
    • F17C2250/0491—Parameters measured at or inside the vessel
    • 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
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/07—Actions triggered by measured parameters
    • F17C2250/072—Action when predefined value is reached
    • F17C2250/077—Action when predefined value is reached when empty

Definitions

  • the invention relates to a pressurized fluid bottle.
  • Such a bottle is known from FR3042586A1 .
  • the invention relates more particularly to a bottle of pressurized fluid, in particular pressurized gas, comprising a valve housing a fluid circuit provided with at least one valve, the bottle comprising a pressure indicator device comprising a pressure-sensitive piston in the bottle and movable relative to the valve body according to the level of pressure in the bottle between at least a first retracted position and a second deployed position, the pressure indicator device further comprising at least one information carrier movable between at least two distinct positions or states to respectively symbolize at least two pressure levels depending on the position of the piston, the information carrier being movable relative to the tap between at least a first position and a second position, the information carrier being biased towards its second position via a return member, the pressure indicator device comprising a bu movable tee between a blocking position preventing the movement of the information carrier from its first position to its second position and an unlocking position allowing the movement of the information carrier from its first position to its second position.
  • This pressure gauge is generally mounted on a valve and protected with the valve by a protective cap. To be visible to the user, the pressure gauge is generally accessible via an opening in the protective cap.
  • An object of the present invention is to overcome all or part of the drawbacks of the prior art noted above.
  • the bottle according to the invention is essentially characterized in that the movable stopper is an intermediate part arranged between the piston and the support of information.
  • the tap 2 can for example be screwed into a threaded orifice of the bottle 1.
  • valve 2 could be connected according to other modes to one or more bottles and in particular to a frame of bottles.
  • the valve 3 is for example an isolation valve controlled manually or automatically, in particular via a handwheel or lever or via a valve pusher of a member (a separate valve) which is connected to the valve 2 secured to the bottle 1 in a removable manner. .
  • the internal fluidic circuit 5 of the valve 2 preferably extends between an upstream end communicating with the storage volume of the bottle 1 (at the storage pressure of the bottle 1) and a downstream end opening at a connection of outlet, in particular a tapping and possibly filling connection.
  • the upstream and downstream ends can be located in a vertical longitudinal direction when the bottle 1 and the valve 2 are in the vertical position of use.
  • the circuit 5 may in particular comprise an isolation valve (valve) 3 and optionally a dust valve (not shown) arranged at the level of the terminal downstream end.
  • a dust valve not shown
  • the bottle 1 includes a pressure indicator device comprising at least one piston 4 sensitive to the pressure in the bottle 1 and movable relative to the body of the valve 2 according to the level of pressure in the bottle 1.
  • the piston 4 is preferably mounted in the body of the valve 2, for example transversely to the vertical longitudinal axis of the valve 2 and of the bottle 1.
  • the piston 4 is movable relative to the valve 2 between at least a first retracted position and a second deployed position.
  • the piston 4 is for example movable in translation.
  • the piston 4 may comprise a first end in communication with the fluidic circuit 5 of the valve 2 (upstream of the valve 3 of isolation) and a second end oriented towards the outside of the valve 2.
  • the pressure indicator device comprises at least one movable information carrier 6 intended to cooperate mechanically with the piston 4 in at least one position.
  • the information support 6 is mobile, for example in translation, between at least two distinct positions or states to respectively symbolize at least two pressure levels depending on the position of the piston 4 with respect to the valve 2.
  • the information carrier 6 may for example comprise a sleeve, for example of generally cylindrical shape, mounted to move (vertical sliding in a direction parallel to the vertical axis of the bottle).
  • the information support 6 can be movable relative to a support 11 fixedly mounted on the body of the valve 2. This support 11 can advantageously guide the movement of the information support 6 (for example in translation).
  • the information medium 6 may comprise an external face provided with visual information comprising at least among: an area of one or more color(s) or tint(s) (red/yellow/green) and/or one or more alpha-numeric symbols.
  • visual information comprising at least among: an area of one or more color(s) or tint(s) (red/yellow/green) and/or one or more alpha-numeric symbols.
  • the visual information may or may not be exposed depending on the position of the at least one support 6 with respect to the valve 2 or with respect to a possible cap.
  • the information support 6 is, for example, movable in translation in a direction parallel to the vertical longitudinal axis of the bottle 1.
  • the bottle 1 can be provided with a valve protection cap 2.
  • the cap can conventionally comprise a structure rigid defining a protective volume around the tap (rigid wall(s), perforated or not) .
  • the cap may comprise at least one opening on its periphery forming a window for viewing the position or the state of the information medium 6 .
  • the information medium 6 may for example be visible through an opening in a viewing direction, in particular a viewing direction which is perpendicular to the vertical axis of the bottle 1 (in the vertical position of use of the bottle ).
  • the information support 6 is movable relative to the tap 2 and to the bottle 1 between at least a first position (for example low) and a second distinct position (for example high).
  • the information medium 6 is also urged towards its second position via a return member 7 (in particular a spring).
  • the return member 7 acts directly (or via an intermediate piece, for example via the support 11) on the information support 6 to move it to its second position.
  • This reminder member 7 preferably acts only on the mobile information support 6 and not on the piston 4.
  • the piston 4 does not act directly on the support 6 of information but via a movable stop 8 which is a separate intermediate part of the piston 4 and the support 6 of information. This movable stop 8 is arranged between the piston 4 and the support 6 of information.
  • the mobile stop 8 can be moved between a blocking position preventing the movement of the information carrier 6 from its first position ([ Fig. 1 ] and [ Fig. 4 ]) to its second position and an unlock position ([ Fig. 3 ] and [ Fig. 5 ]) allowing the movement of the information medium 6 from its first position to its second position.
  • an unlock position [ Fig. 3 ] and [ Fig. 5 ]
  • There [ Fig. 6 ] also symbolizes via arrows the passage of the movable stop to the second unlocking position and the movement of the information carrier 6 to its second position.).
  • the mobile stop 8 can be a part mounted mobile in translation on the valve 2 in a direction parallel to the direction of movement of the piston 4 (transverse to the vertical longitudinal axis of the bottle 1 and of the valve 2).
  • the mobile stop 8 can comprise a part of annular shape mounted around the body of the valve 2.
  • the mobile stop 8 can be guided in translation via lugs cooperating with oblong orifices formed in the body of the mobile stop 8.
  • This movable stop 8 preferably comprises a first end cooperating with the piston 4 and a second end cooperating with a return member 9.
  • This return member 9 of the movable stopper 8 generates a force on the second end of the movable stopper 8 which is transmitted to the piston 4 via the first end of the movable stopper and to urge the piston 4 towards its retracted position.
  • the member 9 for recalling the mobile stop 8 comprises for example a compression spring pressurized between the valve body 2 and the second end of the mobile stop 8.
  • the blocking or not of the information carrier 6 by the movable stopper 8 can be obtained, for example, via at least one end 10 of the information carrier 6 which is received in a slot 12 of the movable stopper 8.
  • this slot or slot 12 has a variable dimension depending on the direction of movement of the mobile stop 8.
  • the end(s) 10 are blocked in the slot 12 (cf. [ Fig. 4 ]) while in the unlocking position of the mobile stop 8, the end(s) 10 can pass through the slot 12 (cf. [ Fig. 4 ]).
  • the ends may have an intermediate portion which is received in the slot 12 regardless of the relative position of the mobile stop 8 and a head or protuberance which can only pass through part of the slot of sufficient size (in unlocked position).
  • the first end of the movable stop bears on the terminal end of the piston 4 while that on the other side of the valve body 2 are arranged the return member 9 of the movable stop and the second end of the stop 8 movable.
  • the first and second ends of the movable abutment 8 can be located respectively at two diametrically opposite ends.
  • This return member 9 of the mobile stop 8 can be the only return member which urges the piston 4 towards its first retracted position.
  • this element 9 for returning the piston 4 to its first retracted position can be arranged outside of the valve body 2. That is to say that this return member 9 can be easily accessible from the outside instead of being encapsulated or mounted in the body of the valve 2 as according to the solution of the prior art . This allows easier maintenance and in particular the change of reminder member 9 to modify, if necessary, the calibration of the force on the piston 4 depending for example on the storage pressure of the bottle 1.
  • the pressure indicator device can thus use a single piston 4 and a mechanism that is reliable, simple and inexpensive. Of course, several pistons could be envisaged.
  • the pressure indicator 6 can indicate more than two distinct states or pressures. Thus, it is possible to envisage the display of three or more different pressure levels (four, five, etc.) depending on the position of the piston 4 via one or two information support(s) 6 (or more ).

Description

L'invention concerne une bouteille de fluide sous pression.The invention relates to a pressurized fluid bottle.

Une telle bouteille est connue de FR3042586A1 .Such a bottle is known from FR3042586A1 .

L'invention concerne plus particulièrement une bouteille de fluide sous pression, notamment de gaz sous pression, comprenant un robinet abritant un circuit de fluide muni d'au moins une vanne, la bouteille comportant un dispositif indicateur de pression comprenant un piston sensible à la pression dans la bouteille et mobile relativement au corps du robinet selon le niveau de pression dans la bouteille entre au moins une première position rétractée et une seconde position déployée, le dispositif indicateur de pression comprenant en outre au moins un support d'information déplaçable entre au moins deux positions ou états distincts pour symboliser respectivement au moins deux niveaux de pression selon la position du piston, le support d'information étant mobile relativement au robinet entre au moins une première position et une seconde position, le support d'information étant sollicité vers sa seconde position via un organe de rappel, le dispositif indicateur de pression comprenant une butée mobile entre une position de blocage empêchant le déplacement du support d'information de sa première position vers sa seconde position et une position de déblocage permettant le déplacement du support d'information de sa première position vers sa seconde position.The invention relates more particularly to a bottle of pressurized fluid, in particular pressurized gas, comprising a valve housing a fluid circuit provided with at least one valve, the bottle comprising a pressure indicator device comprising a pressure-sensitive piston in the bottle and movable relative to the valve body according to the level of pressure in the bottle between at least a first retracted position and a second deployed position, the pressure indicator device further comprising at least one information carrier movable between at least two distinct positions or states to respectively symbolize at least two pressure levels depending on the position of the piston, the information carrier being movable relative to the tap between at least a first position and a second position, the information carrier being biased towards its second position via a return member, the pressure indicator device comprising a bu movable tee between a blocking position preventing the movement of the information carrier from its first position to its second position and an unlocking position allowing the movement of the information carrier from its first position to its second position.

Pour indiquer à l'utilisateur d'une bouteille de fluide sous pression l'autonomie restante, il est connu de prévoir un manomètre sur le robinet de la bouteille. Ce manomètre est généralement monté sur un robinet et protégé avec le robinet par un chapeau de protection. Pour être visible par l'utilisateur le manomètre est généralement accessible via une ouverture du chapeau de protection.To indicate to the user of a pressurized fluid bottle the remaining autonomy, it is known to provide a manometer on the valve of the bottle. This pressure gauge is generally mounted on a valve and protected with the valve by a protective cap. To be visible to the user, the pressure gauge is generally accessible via an opening in the protective cap.

Une autre solution est décrite dans le document FR3042586 A1 . Cette solution bien que satisfaisante peut être relativement plus coûteuse en terme de réglage notamment pour l'indexation du mécanisme par rapport la position du piston. De plus la maintenance d'un tel mécanisme peut être relativement complexe. Un but de la présente invention est de pallier tout ou partie des inconvénients de l'art antérieur relevés ci-dessus.Another solution is described in the document FR3042586 A1 . This solution, although satisfactory, can be relatively more costly in terms of adjustment, in particular for indexing the mechanism with respect to the position of the piston. Moreover, the maintenance of such a mechanism can be relatively complex. An object of the present invention is to overcome all or part of the drawbacks of the prior art noted above.

A cette fin, la bouteille selon l'invention, par ailleurs conforme à la définition générique qu'en donne le préambule ci-dessus, est essentiellement caractérisée en ce que la butée mobile est une pièce intermédiaire disposée entre le piston et le support d'information.To this end, the bottle according to the invention, moreover conforming to the generic definition given in the preamble above, is essentially characterized in that the movable stopper is an intermediate part arranged between the piston and the support of information.

Par ailleurs, des modes de réalisation de l'invention peuvent comporter l'une ou plusieurs des caractéristiques suivantes :

  • la butée mobile est une pièce montée mobile en translation sur le robinet selon une direction parallèle la direction de déplacement du piston,
  • la butée mobile comprend une pièce annulaire montée autour du corps du robinet,
  • la butée mobile comprend une première extrémité coopérant avec le piston et une seconde extrémité coopérant avec un organe de rappel, ledit organe de rappel de la butée mobile générant un effort sur la seconde extrémité de la butée mobile qui est transmis au piston via la première extrémité de la butée mobile et sollicitant le piston vers sa position rétractée,
  • l'organe de rappel de la butée mobile comprend un ressort de compression mis en pression entre le corps du robinet et la seconde extrémité de la butée mobile,
  • le piston est sollicité par un organe de rappel vers sa première position rétractée,
  • l'organe de rappel du piston vers sa première position rétractée est situé à l'extérieur du corps du robinet,
  • l'organe de rappel du piston vers sa première position rétractée est constitué par l'organe de rappel de la butée mobile,
  • le au moins un support d'information comprend un manchon monté mobile en translation selon une direction verticale parallèle à l'axe vertical de la bouteille,
  • l'organe de rappel de la butée mobile est dimensionné pour permettre le passage de la butée mobile de la position de blocage à la position de déblocage uniquement lorsque le niveau de pression dans la bouteille agissant sur le piston devient inférieur à un seuil de pression déterminé,
  • la bouteille comprend un élément support monté sur le robinet assurant un guidage du support d'information dans son déplacement entre ses première et seconde positions. L'invention peut concerner également tout dispositif alternatif comprenant toute combinaison des caractéristiques ci-dessus ou ci-dessous dans le cadre des revendications.
Further, embodiments of the invention may include one or more of the following features:
  • the mobile stop is a part mounted mobile in translation on the valve in a direction parallel to the direction of movement of the piston,
  • the movable stop comprises an annular part mounted around the body of the valve,
  • the movable stop comprises a first end cooperating with the piston and a second end cooperating with a return member, said return member of the movable stop generating a force on the second end of the movable stop which is transmitted to the piston via the first end of the movable stop and urging the piston towards its retracted position,
  • the movable stop return member comprises a compression spring pressurized between the valve body and the second end of the movable stop,
  • the piston is urged by a return member towards its first retracted position,
  • the piston return member to its first retracted position is located outside the valve body,
  • the piston return member towards its first retracted position consists of the movable stop return member,
  • the at least one information carrier comprises a sleeve mounted to move in translation in a vertical direction parallel to the vertical axis of the bottle,
  • the movable stop return member is sized to allow the movable stop to pass from the blocking position to the unlocking position only when the level of pressure in the bottle acting on the piston drops below a determined pressure threshold ,
  • the bottle comprises a support element mounted on the tap ensuring guidance of the information carrier in its displacement between its first and second positions. The invention may also relate to any alternative device comprising any combination of the characteristics above or below within the scope of the claims.

D'autres particularités et avantages apparaîtront à la lecture de la description ci-après, faite en référence aux figures dans lesquelles :

  • [Fig. 1] représente une vue en coupe verticale, schématique et partielle, d'une bouteille de fluide sous pression selon un exemple de réalisation de l'invention dans laquelle un support d'information est dans une première position,
  • [Fig. 2] représente une vue en coupe transversale, schématique et partielle, du dispositif de la bouteille de la [Fig. 1],
  • [Fig. 3] représente similaire à celle de la [Fig. 1] dans laquelle un support d'information est dans une seconde position,
  • [Fig. 4] représente une vue de dessus d'un détail de la [Fig. 2] correspondant à la configuration de la [Fig. 1],
  • [Fig. 5] représente une vue de dessus d'un détail de la [Fig. 2] correspondant à la configuration de la [Fig. 3],
  • [Fig. 6] représente une vue de côté, schématique et partielle, illustrant un détail du principe de fonctionnement du dispositif indicateur de pression de la bouteille.
Other features and advantages will appear on reading the description below, made with reference to the figures in which:
  • [ Fig. 1 ] represents a vertical sectional view, schematic and partial, of a bottle of pressurized fluid according to an exemplary embodiment of the invention in which an information medium is in a first position,
  • [ Fig. 2 ] represents a cross-sectional view, schematic and partial, of the device of the bottle of the [ Fig. 1 ],
  • [ Fig. 3 ] represents similar to that of the [ Fig. 1 ] in which an information carrier is in a second position,
  • [ Fig. 4 ] represents a top view of a detail of the [ Fig. 2 ] corresponding to the configuration of the [ Fig. 1 ],
  • [ Fig. 5 ] represents a top view of a detail of the [ Fig. 2 ] corresponding to the configuration of the [ Fig. 3 ],
  • [ Fig. 6 ] represents a side view, schematic and partial, illustrating a detail of the principle of operation of the cylinder pressure indicator device.

La bouteille 1 de fluide sous pression illustrée, notamment de gaz sous pression, comprend classiquement un robinet 2 abritant un circuit 5 de fluide comprenant au moins une vanne 3. Le robinet 2 peut par exemple être vissé dans un orifice taraudé de la bouteille 1.The bottle 1 of pressurized fluid illustrated, in particular of pressurized gas, conventionally comprises a tap 2 housing a fluid circuit 5 comprising at least one valve 3. The tap 2 can for example be screwed into a threaded orifice of the bottle 1.

Bien entendu, ce mode de réalisation n'est pas limitatif. Le robinet 2 pourrait être raccordé selon d'autres modes à une ou plusieurs bouteilles et notamment à un cadre de bouteilles.Of course, this embodiment is not limiting. The valve 2 could be connected according to other modes to one or more bottles and in particular to a frame of bottles.

La vanne 3 est par exemple une vanne d'isolation commandée manuellement ou automatiquement notamment via un volant ou levier ou via un pousse-clapet d'un organe (un robinet distinct) qui se raccorde au robinet 2 solidaire de la bouteille 1 de façon amovible.The valve 3 is for example an isolation valve controlled manually or automatically, in particular via a handwheel or lever or via a valve pusher of a member (a separate valve) which is connected to the valve 2 secured to the bottle 1 in a removable manner. .

Le circuit 5 fluidique interne du robinet 2 s'étend de préférence entre une extrémité amont communiquant avec le volume de stockage de la bouteille 1 (à la pression de stockage de la bouteille 1) et une extrémité aval débouchant au niveau d'un raccord de sortie, notamment un raccord de soutirage et éventuellement de remplissage. Les extrémités amont et aval peuvent être situées sur une direction longitudinale verticale lorsque la bouteille 1 et le robinet 2 sont en position verticale d'utilisation.The internal fluidic circuit 5 of the valve 2 preferably extends between an upstream end communicating with the storage volume of the bottle 1 (at the storage pressure of the bottle 1) and a downstream end opening at a connection of outlet, in particular a tapping and possibly filling connection. The upstream and downstream ends can be located in a vertical longitudinal direction when the bottle 1 and the valve 2 are in the vertical position of use.

Le circuit 5 peut notamment comporter une vanne (clapet) d'isolation 3 et éventuellement un clapet pare-poussière (non représenté) disposé au niveau de l'extrémité aval terminale. A ce titre, on pourra se référer par exemple de façon non limitative à la structure du robinet décrit dans le document FR2962519A1 .The circuit 5 may in particular comprise an isolation valve (valve) 3 and optionally a dust valve (not shown) arranged at the level of the terminal downstream end. As such, reference may be made, for example, in a non-limiting manner, to the structure of the valve described in the document FR2962519A1 .

La bouteille 1 comporte un dispositif indicateur de pression comprenant au moins un piston 4 sensible à la pression dans la bouteille 1 et mobile relativement au corps du robinet 2 selon le niveau de pression dans la bouteille 1.The bottle 1 includes a pressure indicator device comprising at least one piston 4 sensitive to the pressure in the bottle 1 and movable relative to the body of the valve 2 according to the level of pressure in the bottle 1.

Le piston 4 est de préférence monté dans le corps du robinet 2, par exemple transversalement à l'axe longitudinal vertical du robinet 2 et de la bouteille 1. Le piston 4 est mobile par rapport au robinet 2 entre au moins une première position rétractée et une seconde position déployée.The piston 4 is preferably mounted in the body of the valve 2, for example transversely to the vertical longitudinal axis of the valve 2 and of the bottle 1. The piston 4 is movable relative to the valve 2 between at least a first retracted position and a second deployed position.

Le piston 4 est par exemple mobile en translation. Classiquement, le piston 4 peut comprendre une première extrémité en communication avec le circuit 5 fluidique du robinet 2 (en amont du clapet 3 d'isolation) et une seconde extrémité orientée vers l'extérieur du robinet 2.The piston 4 is for example movable in translation. Conventionally, the piston 4 may comprise a first end in communication with the fluidic circuit 5 of the valve 2 (upstream of the valve 3 of isolation) and a second end oriented towards the outside of the valve 2.

Ainsi, plus la pression dans la bouteille 1 est élevée, plus le piston 4 fait saillie vers l'extérieur du corps du robinet 2 jusqu'à une position limite (position déployée) et inversement lorsque la pression chute le piston 4 se rétracte dans son logement dans le corps du robinet 2.Thus, the higher the pressure in the bottle 1, the more the piston 4 protrudes outward from the body of the valve 2 up to a limit position (extended position) and vice versa when the pressure drops the piston 4 retracts in its housing in the valve body 2.

De plus, le dispositif indicateur de pression comprend au moins un support 6 d'information mobile destiné à coopérer mécaniquement avec le piston 4 dans au moins une position. Le support 6 d'information est mobile, par exemple en translation, entre au moins deux positions ou états distincts pour symboliser respectivement au moins deux niveaux de pression selon la position du piston 4 par rapport au robinet 2.In addition, the pressure indicator device comprises at least one movable information carrier 6 intended to cooperate mechanically with the piston 4 in at least one position. The information support 6 is mobile, for example in translation, between at least two distinct positions or states to respectively symbolize at least two pressure levels depending on the position of the piston 4 with respect to the valve 2.

Le support 6 d'information peut comprendre par exemple un manchon, par exemple de forme générale cylindrique, monté mobile (coulissement vertical selon une direction parallèle à l'axe vertical de la bouteille). Par exemple, le support 6 d'information peut être mobile par rapport à un support 11 monté fixe sur le corps du robinet 2. Ce support 11 peut avantageusement guider le déplacement du support 6 d'information (par exemple en translation).The information carrier 6 may for example comprise a sleeve, for example of generally cylindrical shape, mounted to move (vertical sliding in a direction parallel to the vertical axis of the bottle). For example, the information support 6 can be movable relative to a support 11 fixedly mounted on the body of the valve 2. This support 11 can advantageously guide the movement of the information support 6 (for example in translation).

A cet effet, le support 6 d'information peut comprendre une face externe munie d'une information visuelle comprenant au moins parmi: une zone d'une ou plusieurs couleur(s) ou teinte(s) (rouge/jaune/vert) et/ou un ou des symboles alfa-numériques. De cette façon, l'information visuelle peut être exposée ou non selon la position du au moins un support 6 par rapport au robinet 2 ou par rapport à un éventuel chapeau.To this end, the information medium 6 may comprise an external face provided with visual information comprising at least among: an area of one or more color(s) or tint(s) (red/yellow/green) and/or one or more alpha-numeric symbols. In this way, the visual information may or may not be exposed depending on the position of the at least one support 6 with respect to the valve 2 or with respect to a possible cap.

Le support 6 d'information est par exemple mobile en translation selon une direction parallèle à l'axe longitudinal vertical de la bouteille 1. La bouteille 1 peut être munie d'un chapeau de protection du robinet 2. Le chapeau peut comprendre classiquement une structure rigide délimitant un volume de protection autour du robinet (paroi(s) rigide(s) ajourées ou non) .The information support 6 is, for example, movable in translation in a direction parallel to the vertical longitudinal axis of the bottle 1. The bottle 1 can be provided with a valve protection cap 2. The cap can conventionally comprise a structure rigid defining a protective volume around the tap (rigid wall(s), perforated or not) .

Le chapeau peut comprendre au moins une ouverture sur sa périphérie formant une fenêtre de visualisation de la position ou de l'état du support 6 d'information.The cap may comprise at least one opening on its periphery forming a window for viewing the position or the state of the information medium 6 .

Le support 6 d'information peut être par exemple visible au travers d'une ouverture selon une direction de visualisation, notamment une direction de visualisation qui est perpendiculaire à l'axe vertical de la bouteille 1 (en position verticale d'utilisation de la bouteille).The information medium 6 may for example be visible through an opening in a viewing direction, in particular a viewing direction which is perpendicular to the vertical axis of the bottle 1 (in the vertical position of use of the bottle ).

Par exemple, le support 6 d'information est mobile relativement au robinet 2 et à la bouteille 1 entre au moins une première position (par exemple basse) et une seconde position distincte (par exemple haute).For example, the information support 6 is movable relative to the tap 2 and to the bottle 1 between at least a first position (for example low) and a second distinct position (for example high).

Le support 6 d'information est par ailleurs sollicité vers sa seconde position via un organe de rappel 7 (notamment un ressort).The information medium 6 is also urged towards its second position via a return member 7 (in particular a spring).

De préférence, l'organe 7 de rappel agit directement (ou via une pièce intermédiaire, par exemple via le support 11) sur le support 6 d'information pour le déplacer vers sa seconde position. Cet organe 7 de rappel agit de préférence uniquement sur le support 6 d'information mobile et pas sur le piston 4. Contrairement à l'agencement de l'art antérieur, le piston 4 n'agit pas directement sur le support 6 d'information mais via une butée 8 mobile qui est une pièce intermédiaire distincte du piston 4 et du support 6 d'information. Cette butée 8 mobile est disposée entre le piston 4 et le support 6 d'information.Preferably, the return member 7 acts directly (or via an intermediate piece, for example via the support 11) on the information support 6 to move it to its second position. This reminder member 7 preferably acts only on the mobile information support 6 and not on the piston 4. Unlike the arrangement of the prior art, the piston 4 does not act directly on the support 6 of information but via a movable stop 8 which is a separate intermediate part of the piston 4 and the support 6 of information. This movable stop 8 is arranged between the piston 4 and the support 6 of information.

La butée 8 mobile est déplaçable entre une position de blocage empêchant le déplacement du support 6 d'information de sa première position ([Fig. 1] et [Fig. 4]) vers sa seconde position et une position de déblocage ([Fig. 3] et [Fig. 5]) permettant le déplacement du support 6 d'information de sa première position vers sa seconde position. La [Fig. 6] symbolise également via des flèches le passage de la butée mobile vers la seconde position de déblocage et le déplacement du support 6 d'information vers sa seconde position.).The mobile stop 8 can be moved between a blocking position preventing the movement of the information carrier 6 from its first position ([ Fig. 1 ] and [ Fig. 4 ]) to its second position and an unlock position ([ Fig. 3 ] and [ Fig. 5 ]) allowing the movement of the information medium 6 from its first position to its second position. There [ Fig. 6 ] also symbolizes via arrows the passage of the movable stop to the second unlocking position and the movement of the information carrier 6 to its second position.).

Comme illustré, la butée 8 mobile peut être une pièce montée mobile en translation sur le robinet 2 selon une direction parallèle la direction de déplacement du piston 4 (transversale à l'axe longitudinal vertical de la bouteille 1 et du robinet 2) .As illustrated, the mobile stop 8 can be a part mounted mobile in translation on the valve 2 in a direction parallel to the direction of movement of the piston 4 (transverse to the vertical longitudinal axis of the bottle 1 and of the valve 2).

Comme visible à la [Fig. 2]), la butée 8 mobile peut comprendre une pièce de forme annulaire montée autour du corps du robinet 2.As seen in [ Fig. 2 ]), the mobile stop 8 can comprise a part of annular shape mounted around the body of the valve 2.

Comme schématisé à la [Fig. 2], la butée 8 mobile peut être guidée en translation via des pattes coopérant avec des orifices oblongs formés dans le corps de la butée 8 mobile.As shown in [ Fig. 2 ], the mobile stop 8 can be guided in translation via lugs cooperating with oblong orifices formed in the body of the mobile stop 8.

Cette butée 8 mobile comprend de préférence une première extrémité coopérant avec le piston 4 et une seconde extrémité coopérant avec un organe 9 de rappel. Cet organe 9 de rappel de la butée 8 mobile génère un effort sur la seconde extrémité de la butée 8 mobile qui est transmis au piston 4 via la première extrémité de la butée mobile et pour solliciter le piston 4 vers sa position rétractée. Comme illustré, l'organe 9 de rappel de la butée 8 mobile comprend par exemple un ressort de compression mis en pression entre le corps du robinet 2 et la seconde extrémité de la butée 8 mobile.This movable stop 8 preferably comprises a first end cooperating with the piston 4 and a second end cooperating with a return member 9. This return member 9 of the movable stopper 8 generates a force on the second end of the movable stopper 8 which is transmitted to the piston 4 via the first end of the movable stopper and to urge the piston 4 towards its retracted position. As illustrated, the member 9 for recalling the mobile stop 8 comprises for example a compression spring pressurized between the valve body 2 and the second end of the mobile stop 8.

Comme illustré à la [Fig. 1] et à la [Fig. 3], le blocage ou non du support 6 d'information par la butée 8 mobile être obtenu par exemple via au moins une extrémité 10 du support 6 d'information qui est reçue dans un fente 12 de la butée 8 mobile. Par exemple cette fente ou lumière 12 a une dimension variable selon le sens de déplacement de la butée 8 mobile. Dans la position de blocage de la butée 8 mobile, la ou les extrémités 10 sont bloquées dans la fente 12 (cf. [Fig. 4]) tandis que dans la position de déblocage de la butée 8 mobile, la ou les extrémités 10 peuvent traverser la fente 12 (cf. [Fig. 4]). Les extrémité (par exemple au nombre de deux ou plus) peuvent avoir une portion intermédiaire qui est reçue dans la fente 12 quelle que soit la position relative de la butée 8 mobile et une tête ou excroissance qui ne peut traverser qu'une partie de fente ayant des dimensions suffisantes (en position de déblocage).As shown in [ Fig. 1 ] and the [ Fig. 3 ], the blocking or not of the information carrier 6 by the movable stopper 8 can be obtained, for example, via at least one end 10 of the information carrier 6 which is received in a slot 12 of the movable stopper 8. For example, this slot or slot 12 has a variable dimension depending on the direction of movement of the mobile stop 8. In the blocking position of the mobile stop 8, the end(s) 10 are blocked in the slot 12 (cf. [ Fig. 4 ]) while in the unlocking position of the mobile stop 8, the end(s) 10 can pass through the slot 12 (cf. [ Fig. 4 ]). The ends (for example two or more in number) may have an intermediate portion which is received in the slot 12 regardless of the relative position of the mobile stop 8 and a head or protuberance which can only pass through part of the slot of sufficient size (in unlocked position).

Ainsi, comme visible à la [Fig. 1] ou à la [Fig. 3], selon une direction transversale à l'axe vertical du robinet 2 et de la bouteille, d'un côté du corps du robinet 2 peuvent être agencés : la première extrémité de la butée mobile en appui sur l'extrémité terminale du piston 4 tandis que de l'autre côté du corps du robinet 2 sont disposés l'organe de rappel 9 de la butée mobile et la seconde extrémité de la butée 8 mobile. Les première et seconde extrémités de la butée 8 mobile peuvent être situées respectivement au niveau de deux extrémités diamétralement opposées.Thus, as seen in [ Fig. 1 ] or the [ Fig. 3 ], in a direction transverse to the vertical axis of the valve 2 and of the bottle, on one side of the body of the valve 2 can be arranged: the first end of the movable stop bears on the terminal end of the piston 4 while that on the other side of the valve body 2 are arranged the return member 9 of the movable stop and the second end of the stop 8 movable. The first and second ends of the movable abutment 8 can be located respectively at two diametrically opposite ends.

Cet organe 9 de rappel de la butée 8 mobile peut être l'unique organe de rappel qui sollicite le piston 4 vers sa première position rétractée.This return member 9 of the mobile stop 8 can be the only return member which urges the piston 4 towards its first retracted position.

Ainsi, comme illustré, cet organe 9 de rappel du piston 4 vers sa première position rétractée peut être disposé à l'extérieur du corps du robinet 2. C'est-à-dire que cet organe 9 de rappel peut être facilement accessible à l'extérieur au lieu d'être encapsulé ou monté dans le corps du robinet 2 comme selon la solution de l'art antérieur. Ceci permet une maintenance facilitée et notamment le changement d'organe 9 de rappel pour modifier le cas échant le tarage de l'effort sur le piston 4 en fonction par exemple de la pression de stockage de la bouteille 1.Thus, as illustrated, this element 9 for returning the piston 4 to its first retracted position can be arranged outside of the valve body 2. That is to say that this return member 9 can be easily accessible from the outside instead of being encapsulated or mounted in the body of the valve 2 as according to the solution of the prior art . This allows easier maintenance and in particular the change of reminder member 9 to modify, if necessary, the calibration of the force on the piston 4 depending for example on the storage pressure of the bottle 1.

Le dispositif indicateur de pression peut ainsi utiliser un unique piston 4 et un mécanisme, fiable, simple et peu coûteux. Bien entendu plusieurs pistons pourraient être envisagés.The pressure indicator device can thus use a single piston 4 and a mechanism that is reliable, simple and inexpensive. Of course, several pistons could be envisaged.

De même, l'indicateur 6 de pression peut indiquer plus de deux état ou pression distincts. Ainsi, il est possible d'envisager l'affichage de trois ou plus de trois niveaux différents de pression (quatre, cinq...) selon la position du piston 4 via un ou deux support(s) 6 d'information (ou plus).Similarly, the pressure indicator 6 can indicate more than two distinct states or pressures. Thus, it is possible to envisage the display of three or more different pressure levels (four, five, etc.) depending on the position of the piston 4 via one or two information support(s) 6 (or more ).

Claims (11)

  1. Cylinder for pressurized fluid, notably pressurized gas, comprising a control valve (2) housing a fluid circuit (5) provided with at least one valve (3), the cylinder (1) comprising a pressure indicator device comprising a piston (4) sensitive to the pressure in the cylinder (1) and mobile relative to the body of the control valve (2) according to the pressure level in the cylinder (1) between at least a first, retracted position and a second, deployed position, the pressure indicator device further comprising at least one information medium (6) that can be displaced between at least two distinct positions or states to symbolize, respectively, at least two pressure levels depending on the position of the piston (4), the information medium (6) being mobile relative to the control valve (2) between at least a first position and a second position, the information medium (6) being stressed towards its second position via a return member (7), the pressure indicator device comprising a stop (8) that is mobile between a blocking position preventing the displacement of the information medium (4) from its first position to its second position and an unblocking position allowing the displacement of the information medium (6) from its first position to its second position, characterized in that the mobile stop (8) is an intermediate part disposed between the piston (4) and the information medium (6) .
  2. Cylinder according to Claim 1, characterized in that the mobile stop (8) is a part mounted to be mobile in translation on the control valve in a direction parallel to the direction of displacement of the piston (4).
  3. Cylinder according to Claim 1 or 2, characterized in that the mobile stop (8) comprises an annular part mounted around the body of the control valve (2) .
  4. Cylinder according to any one of Claims 1 to 3, characterized in that the mobile stop (8) comprises a first end cooperating with the piston (4) and a second end cooperating with a return member (9), said return member (9) of the mobile stop (8) generating a force on the second end of the mobile stop (8) which is transmitted to the piston (4) via the first end of the mobile stop and stressing the piston (4) towards its retracted position.
  5. Cylinder according to Claim 4, characterized in that the return member (9) of the mobile stop (8) comprises a compression spring compressed between the body of the control valve (2) and the second end of the mobile stop (8).
  6. Cylinder according to any one of Claims 1 to 5, characterized in that the piston (4) is stressed by a return member (9) towards its first, retracted position.
  7. Cylinder according to Claim 6, characterized in that the return member (9) returning the piston towards its first, retracted position is situated outside of the body of the control valve (2).
  8. Cylinder according to Claim 4 or 5 combined with either one of Claims 6 and 7, characterized in that the return member (9) returning the piston towards its first, retracted position is composed of the return member (9) of the mobile stop (8).
  9. Cylinder according to any one of Claims 1 to 8, characterized in that the at least one information medium (6) comprises a sleeve mounted to be mobile in translation in a vertical direction parallel to the vertical axis of the cylinder (1).
  10. Cylinder according to any one of Claims 4, 5 and 8, characterized in that the return member (9) of the mobile stop (8) is dimensioned to allow the passage of the mobile stop from the blocking position to the unblocking position only when the pressure level in the cylinder acting on the piston becomes lower than a determined pressure threshold.
  11. Cylinder according to any one of Claims 1 to 10, characterized in that it comprises a support element (11) mounted on the control valve (2) ensuring guiding of the information medium (6) in its displacement between its first and second positions.
EP20181320.1A 2019-07-05 2020-06-22 Cylinder for pressurised fluid Active EP3760912B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1907550A FR3098273B1 (en) 2019-07-05 2019-07-05 Pressurized fluid bottle

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EP3760912A1 EP3760912A1 (en) 2021-01-06
EP3760912B1 true EP3760912B1 (en) 2022-04-13

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Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0660859B2 (en) * 1989-03-10 1994-08-10 日東工器株式会社 Pressure checker
ATE310237T1 (en) * 2001-09-07 2005-12-15 Gloor Ag Geb PRESSURE INDICATOR
ITMI20040770A1 (en) * 2004-04-20 2004-07-20 Cavagna Group Switzerland S A INTERCEPTING VALVE WITH STATE INDICATOR DEVICE OF A FLUID, PARTICULARLY FOR GAS CONTAINERS
FR2962519B1 (en) 2010-07-09 2012-07-20 Air Liquide FILLING FITTING, RECIPIENT AND FILLING METHOD THEREOF
DE102010045564A1 (en) * 2010-09-16 2012-03-22 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Spring-activated optical pressure indicator
LU91948B1 (en) * 2012-03-01 2013-09-02 Luxembourg Patent Co Gas cylinder valve with visual pressure indicator
FR3042586B1 (en) 2015-10-15 2018-03-09 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude PRESSURIZED FLUID BOTTLE

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EP3760912A1 (en) 2021-01-06
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