EP2679831A1 - Emergency hydraulic device - Google Patents

Emergency hydraulic device Download PDF

Info

Publication number
EP2679831A1
EP2679831A1 EP13171587.2A EP13171587A EP2679831A1 EP 2679831 A1 EP2679831 A1 EP 2679831A1 EP 13171587 A EP13171587 A EP 13171587A EP 2679831 A1 EP2679831 A1 EP 2679831A1
Authority
EP
European Patent Office
Prior art keywords
valve
gas
hydraulic
enclosure
receiver
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.)
Granted
Application number
EP13171587.2A
Other languages
German (de)
French (fr)
Other versions
EP2679831B1 (en
Inventor
François POREL
Louis-Claude Porel
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.)
Hydro Leduc SAS
Original Assignee
Hydro Leduc SAS
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 Hydro Leduc SAS filed Critical Hydro Leduc SAS
Publication of EP2679831A1 publication Critical patent/EP2679831A1/en
Application granted granted Critical
Publication of EP2679831B1 publication Critical patent/EP2679831B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02—Installations or systems with accumulators
    • F15B1/022—Installations or systems with accumulators used as an emergency power source, e.g. in case of pump failure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2201/00—Accumulators
    • F15B2201/30—Accumulator separating means
    • F15B2201/315—Accumulator separating means having flexible separating means

Definitions

  • the present invention relates to a hydraulic emergency device which is actuated in case of incident or in case of emergency.
  • Hydropneumatic accumulators usually used consist of a tank, generally metal, having a deformable separator or a free piston, which isolates a pressurized gas from the hydraulic fluid.
  • the deformable separator is either a flexible elastomer membrane or a metal bellows.
  • Elastomeric flexible membranes have the disadvantage of passing gas to the hydraulic fluid. This phenomenon of gas exchange to the hydraulic fluid is detrimental to the proper functioning, in time, of the hydraulic circuit.
  • the separators constituted by a metal bellows do not have this disadvantage; but are expensive.
  • Piston accumulators are also too expensive.
  • the object of the present invention is to provide a hydraulic emergency device equipped with a hydropneumatic accumulator equipped with a gas-fluid separator which is totally sealed in time and at a low cost.
  • the hydraulic emergency device comprises a hydropneumatic accumulator connected to a hydraulic receiver by a valve having a closed state by default, and a control device adapted to switch said valve in a conducting state to cause the supply of the hydraulic receiver. by the pressure of the hydropneumatic accumulator.
  • Said hydropneumatic accumulator comprises a reservoir filled with liquid hydraulic system in which is immersed an enclosure made of a totally gas-tight material in the time filled with a gas under pressure, said enclosure being able to break in response to the opening of said valve to release the pressure of the gas.
  • the device may further comprise all or part of the following provisions.
  • the reservoir comprises a metal casing having a closed end and an open end which is screwed, with the interposition of seals on a nozzle comprising a pipe connected to said hydraulic receiver and provided with said valve.
  • the valve is controlled by an operating lever.
  • the metal casing is of cylindrical section
  • the closed end of the metal casing is of hemispherical shape
  • the chamber completely sealed in duration is of spherical shape and housed in the hemispherical part of the casing. envelope of which she marries the form.
  • the chamber comprises a filling valve accessible from outside the liquid reservoir.
  • the receiver comprises a jack.
  • the cylinder piston actuates a current switch in response to the opening of the valve.
  • the receiver comprises a hydraulic motor.
  • the hydraulic motor actuates the engine turbine of a helicopter in response to the opening of the valve.
  • An idea underlying the invention is to use a single-use pressure accumulator whose cost is low through the use of a gas-tight material.
  • the oleopneumatic accumulator comprises a metal casing 1, which is of cylindrical section, a closed end 2 of which is of hemispherical shape, the other open end 3 being screwed, with the interposition of seals, onto a tip 4 comprising a pipe 5 provided with a valve 6, controlled by an operating lever 7.
  • the pipe 5 is connected to a pipe 8 leading to a receiver 9, which, in the example shown, is a cylinder.
  • an enclosure 10 of flexible and gas-tight material which is preferably, as shown, of spherical shape so as to match the inner wall of the end 2 of the This enclosure 10 is inflated with gas under pressure by means of a valve 11.
  • the chamber 10 contains a pressurized gas, the remaining volume 12 of the casing 1 being filled with hydraulic fluid at a pressure that balances that of the gas since the valve 6 is closed.
  • the device is intended to actuate the control of breaking the current in electrical conductors at high or very high voltage, switches whose maneuver requires to be performed very quickly.
  • the voltage monitoring system in the electrical conductors When the voltage monitoring system in the electrical conductors detects an overvoltage, it triggers a signal that acts on a low power actuator, for example an electric or hydraulic actuator that opens the valve 6, for example by acting on the lever 7 according to the arrow "f".
  • a low power actuator for example an electric or hydraulic actuator that opens the valve 6, for example by acting on the lever 7 according to the arrow "f".
  • the hydraulic fluid in the volume 12 of the casing 1 begins to flow in the pipe 8 and the indeformable wall of the enclosure 10 breaks under the effect of the pressure of the gas by displacing the hydraulic fluid, which penetrates in the cylinder 9 and pushes the piston 13, which (although it is not shown) is coupled to the current switch, which cuts off the current in a very short time.
  • the safety device is intended to actuate a hydraulic motor causing any mechanism.
  • Line 8 terminates in a hydraulic motor 14, which is, for example, a starting mechanism for the turbine of a helicopter. In this case there is a clutch 15 between the hydraulic motor and the turbine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)

Abstract

The device has a gas-loaded accumulator connected to a hydraulic motor (9) by a valve (6) presenting a state closed by defect. A control device (7) is commutated with the valve in a passing state for supplying the power to the hydraulic motor by the pressure of the gas-loaded accumulator. The accumulator comprises a container (1) filled with hydraulic fluid (12) in which an enclosure (10) made of completely gas-tight material is immersed with gas under pressure, where the enclosure is broken with respect to the valve to release the pressure of gas.

Description

La présente invention a pour objet un dispositif hydraulique de secours qui est actionné en cas d'incident ou en cas d'urgence.The present invention relates to a hydraulic emergency device which is actuated in case of incident or in case of emergency.

Il est connu d'employer pour ce genre de dispositif hydraulique un accumulateur hydropneumatique, constituant une réserve d'énergie, qui est libérée en cas d'incident ou d'accident pour actionner un coupe-circuit.It is known to use for this kind of hydraulic device a hydropneumatic accumulator, constituting a reserve of energy, which is released in case of incident or accident to actuate a circuit breaker.

Les accumulateurs hydropneumatiques habituellement utilisés sont constitués d'un réservoir, en général métallique, possédant un séparateur déformable ou un piston libre, qui isole un gaz sous pression du fluide hydraulique.Hydropneumatic accumulators usually used consist of a tank, generally metal, having a deformable separator or a free piston, which isolates a pressurized gas from the hydraulic fluid.

Le séparateur déformable est soit une membrane souple en élastomère, soit un soufflet métallique.The deformable separator is either a flexible elastomer membrane or a metal bellows.

Les membranes souples en élastomère présentent l'inconvénient de laisser passer du gaz vers le fluide hydraulique. Ce phénomène d'échange du gaz vers le fluide hydraulique est préjudiciable au bon fonctionnement, dans la durée, du circuit hydraulique.Elastomeric flexible membranes have the disadvantage of passing gas to the hydraulic fluid. This phenomenon of gas exchange to the hydraulic fluid is detrimental to the proper functioning, in time, of the hydraulic circuit.

En effet, ce phénomène va, petit à petit, charger le fluide hydraulique de gaz et rendre les propriétés mécaniques du fluide de moins en moins performantes, parce que l'introduction de gaz va rendre le fluide hydraulique de plus en plus compressible, ce qui va nuire sensiblement aux performances du récepteur qui doit être actionné par le fluide hydraulique.Indeed, this phenomenon will gradually load the hydraulic fluid gas and make the mechanical properties of the fluid less and less efficient, because the introduction of gas will make the hydraulic fluid more and more compressible, which will substantially impair the performance of the receiver that must be actuated by the hydraulic fluid.

Les séparateurs constituée par un soufflet métallique ne présentent pas cet inconvénient ; mais sont onéreux.The separators constituted by a metal bellows do not have this disadvantage; but are expensive.

Les accumulateurs à piston sont également trop onéreux.Piston accumulators are also too expensive.

La présente invention a pour but de réaliser un dispositif hydraulique de secours muni d'un accumulateur hydropneumatique équipé d'un séparateur gaz-fluide totalement étanche dans la durée et de faible coût.The object of the present invention is to provide a hydraulic emergency device equipped with a hydropneumatic accumulator equipped with a gas-fluid separator which is totally sealed in time and at a low cost.

Le dispositif hydraulique de secours selon la présente invention comporte un accumulateur hydropneumatique relié à un récepteur hydraulique par une vanne présentant un état fermé par défaut, et un dispositif de commande apte à commuter ladite vanne dans un état passant pour provoquer l'alimentation du récepteur hydraulique par la pression de l'accumulateur hydropneumatique. Ledit accumulateur hydropneumatique comporte un réservoir rempli de liquide hydraulique dans lequel est immergée une enceinte en matière totalement étanche au gaz dans la durée remplie d'un gaz sous pression, ladite enceinte étant apte à se rompre en réponse à l'ouverture de ladite vanne pour libérer la pression du gaz.The hydraulic emergency device according to the present invention comprises a hydropneumatic accumulator connected to a hydraulic receiver by a valve having a closed state by default, and a control device adapted to switch said valve in a conducting state to cause the supply of the hydraulic receiver. by the pressure of the hydropneumatic accumulator. Said hydropneumatic accumulator comprises a reservoir filled with liquid hydraulic system in which is immersed an enclosure made of a totally gas-tight material in the time filled with a gas under pressure, said enclosure being able to break in response to the opening of said valve to release the pressure of the gas.

Selon des modes de réalisation, le dispositif peut comporter en outre tout ou partie des dispositions suivantes.According to embodiments, the device may further comprise all or part of the following provisions.

Selon un mode de réalisation, le réservoir comporte une enveloppe métallique présentant une extrémité fermée et une extrémité ouverte qui est vissée, avec interposition de joints d'étanchéité sur un embout comportant une conduite reliée audit récepteur hydraulique et munie de ladite vanne.According to one embodiment, the reservoir comprises a metal casing having a closed end and an open end which is screwed, with the interposition of seals on a nozzle comprising a pipe connected to said hydraulic receiver and provided with said valve.

Selon un mode de réalisation, la vanne est commandée par un levier de manoeuvre.According to one embodiment, the valve is controlled by an operating lever.

Selon un mode de réalisation, l'enveloppe métallique est de section cylindrique, l'extrémité fermée de l'enveloppe métallique est de forme hémisphérique et l'enceinte totalement étanche dans la durée est de forme sphérique et logée dans la partie hémisphérique de l'enveloppe dont elle épouse la forme.According to one embodiment, the metal casing is of cylindrical section, the closed end of the metal casing is of hemispherical shape and the chamber completely sealed in duration is of spherical shape and housed in the hemispherical part of the casing. envelope of which she marries the form.

Selon un mode de réalisation, l'enceinte comporte une valve de remplissage accessible depuis l'extérieur du réservoir de liquide.According to one embodiment, the chamber comprises a filling valve accessible from outside the liquid reservoir.

Selon un mode de réalisation, le récepteur comporte un vérin.According to one embodiment, the receiver comprises a jack.

Selon un mode de réalisation, le piston du vérin actionne un interrupteur de courant en réponse à l'ouverture de la vanne.According to one embodiment, the cylinder piston actuates a current switch in response to the opening of the valve.

Selon un mode de réalisation, le récepteur comporte un moteur hydraulique.According to one embodiment, the receiver comprises a hydraulic motor.

Selon un mode de réalisation, le moteur hydraulique actionne la turbine du moteur d'un hélicoptère en réponse à l'ouverture de la vanne.According to one embodiment, the hydraulic motor actuates the engine turbine of a helicopter in response to the opening of the valve.

Une idée à la base de l'invention est d'employer un accumulateur de pression à usage unique dont le prix de revient soit peu élevé grâce à l'utilisation d'une matière étanche au gaz.An idea underlying the invention is to use a single-use pressure accumulator whose cost is low through the use of a gas-tight material.

L'invention sera mieux comprise, et d'autres buts, détails, caractéristiques et avantages de celle-ci apparaîtront plus clairement au cours de la description suivante de plusieurs modes de réalisation particuliers de l'invention, donnés uniquement à titre illustratif et non limitatif, en référence aux dessins annexés. Sur ces dessins :

  • La figure 1 représente un premier exemple de mise en oeuvre du dispositif selon l'invention en position d'attente, la vanne étant fermée.
  • La figure 2 représente le dispositif de la figure 1 après ouverture de la vanne.
  • La figure 3 représente un deuxième exemple de mise de mise en oeuvre de l'invention en position d'attente, la vanne étant fermée.
  • La figure 4 représente le dispositif de la figure 3 après ouverture de la vanne
The invention will be better understood, and other objects, details, characteristics and advantages thereof will appear more clearly in the course of the following description of several particular embodiments of the invention, given solely for illustrative and non-limiting purposes. with reference to the accompanying drawings. On these drawings:
  • The figure 1 represents a first example of implementation of the device according to the invention in the standby position, the valve being closed.
  • The figure 2 represents the device of the figure 1 after opening the valve.
  • The figure 3 represents a second example implementation of the invention in the standby position, the valve being closed.
  • The figure 4 represents the device of the figure 3 after opening the valve

.En se reportant aux figures 1 à 4 on voit que l'accumulateur oléopneumatique comporte une enveloppe métallique 1, qui est de section cylindrique, dont une extrémité fermée 2 est de forme hémisphérique, l'autre extrémité ouverte 3 étant vissée, avec interposition de joints d'étanchéité, sur un embout 4 comportant une conduite 5 munie d'une vanne 6, commandée par un levier de manoeuvre 7..By referring to Figures 1 to 4 it can be seen that the oleopneumatic accumulator comprises a metal casing 1, which is of cylindrical section, a closed end 2 of which is of hemispherical shape, the other open end 3 being screwed, with the interposition of seals, onto a tip 4 comprising a pipe 5 provided with a valve 6, controlled by an operating lever 7.

Au-delà de la vanne 6, la conduite 5 est reliée à une canalisation 8 aboutissant à un récepteur 9, qui, dans l'exemple représenté, est un vérin.Beyond the valve 6, the pipe 5 is connected to a pipe 8 leading to a receiver 9, which, in the example shown, is a cylinder.

A l'intérieur de l'enveloppe 1 est disposée une enceinte 10 en matière souple et étanche au gaz, qui est, de préférence, comme cela est représenté, de forme sphérique de façon à épouser la paroi interne de l'extrémité 2 de l'enveloppe 1. Cette enceinte 10 est gonflée en gaz sous pression au moyen d'une valve 11.Inside the casing 1 is disposed an enclosure 10 of flexible and gas-tight material, which is preferably, as shown, of spherical shape so as to match the inner wall of the end 2 of the This enclosure 10 is inflated with gas under pressure by means of a valve 11.

L'enceinte 10 contient un gaz sous pression, le volume restant 12 de l'enveloppe 1 étant rempli de liquide hydraulique à une pression qui équilibre celle du gaz puisque la vanne 6 est fermée.The chamber 10 contains a pressurized gas, the remaining volume 12 of the casing 1 being filled with hydraulic fluid at a pressure that balances that of the gas since the valve 6 is closed.

Selon un premier exemple de mise en oeuvre de l'invention, représenté aux figures 1 et 2, le dispositif est destiné à actionner la commande de rupture du courant dans des conducteurs électriques à haute ou très haute tension, interrupteurs dont la manoeuvre demande à être effectuée très rapidement.According to a first example of implementation of the invention, represented in Figures 1 and 2 , the device is intended to actuate the control of breaking the current in electrical conductors at high or very high voltage, switches whose maneuver requires to be performed very quickly.

Lorsque le système de surveillance de la tension régnant dans les conducteurs électriques détecte une surtension, il déclenche un signal qui agit sur un actionneur de faible puissance, par exemple actionneur électrique ou hydraulique qui ouvre la vanne 6, par exemple en agissant sur le levier 7 selon la flèche « f ».When the voltage monitoring system in the electrical conductors detects an overvoltage, it triggers a signal that acts on a low power actuator, for example an electric or hydraulic actuator that opens the valve 6, for example by acting on the lever 7 according to the arrow "f".

Le fluide hydraulique se trouvant dans le volume 12 de l'enveloppe 1 commence à s'écouler dans la canalisation 8 et la paroi indéformable de l'enceinte10 se brise sous l'effet de la pression du gaz en refoulant le fluide hydraulique, qui pénètre dans le vérin 9 et repousse le piston 13, lequel (bien que cela ne soit pas représenté) est attelé à l'interrupteur de courant, ce qui réalise la coupure du courant dans un temps très court.The hydraulic fluid in the volume 12 of the casing 1 begins to flow in the pipe 8 and the indeformable wall of the enclosure 10 breaks under the effect of the pressure of the gas by displacing the hydraulic fluid, which penetrates in the cylinder 9 and pushes the piston 13, which (although it is not shown) is coupled to the current switch, which cuts off the current in a very short time.

Cette disposition permet :

  • De réaliser un circuit de secours ayant une très grande durée de vie ;
  • De réaliser un circuit économique ;
  • D'avoir, après chaque utilisation, l'obligation de remettre en état l'accumulateur par remplacement de l'enceinte 10 qui a été détruite, ce qui renforce l'aspect sécurité.
This provision allows:
  • To make a backup circuit with a very long life;
  • To realize an economic circuit;
  • Having, after each use, the obligation to restore the battery by replacing the enclosure 10 which has been destroyed, which reinforces the safety aspect.

Selon un deuxième exemple de mise en oeuvre de l'invention, représenté aux figures 3 et 4, le dispositif de sécurité est destiné à actionner un moteur hydraulique entrainant un mécanisme quelconque.According to a second example of implementation of the invention, represented in Figures 3 and 4 , the safety device is intended to actuate a hydraulic motor causing any mechanism.

La canalisation 8 aboutit à un moteur hydraulique 14, qui constitue, par exemple, un mécanisme de démarrage de la turbine d'un hélicoptère. Dans ce cas on dispose un embrayage 15 entre le moteur hydraulique et la turbine.Line 8 terminates in a hydraulic motor 14, which is, for example, a starting mechanism for the turbine of a helicopter. In this case there is a clutch 15 between the hydraulic motor and the turbine.

Après usage, l'enceinte 10 est brisée et ne peut être réutilisée. Il est possible de réamorcer l'accumulateur oléopneumatique par les étapes suivantes :

  • dévisser l'embout 4, sortir la cartouche 10 en poussant sur la valve 11,
  • insérer une nouvelle cartouche 10, vide ou faiblement remplie, dans l'enveloppe 1,
  • revisser l'embout 4, remplir l'enveloppe de liquide à travers la vanne 6, fermer la vanne, et
  • gonfler la cartouche au gaz, par exemple azote, à travers la valve 11 jusqu'à la pression souhaitée, par exemple de l'ordre de quelques centaines de bars pour un disjoncteur électrique de haute tension.
After use, the enclosure 10 is broken and can not be reused. It is possible to reprime the oleopneumatic accumulator by the following steps:
  • unscrew the tip 4, take out the cartridge 10 by pushing on the valve 11,
  • insert a new cartridge 10, empty or weakly filled, into the envelope 1,
  • screw the tip 4, fill the liquid envelope through the valve 6, close the valve, and
  • inflating the gas cartridge, for example nitrogen, through the valve 11 to the desired pressure, for example of the order of a few hundred bars for a high voltage electrical circuit breaker.

Bien que l'invention ait été décrite en liaison avec plusieurs modes de réalisation particuliers, il est bien évident qu'elle n'y est nullement limitée et qu'elle comprend tous les équivalents techniques des moyens décrits ainsi que leurs combinaisons si celles-ci entrent dans le cadre de l'invention.Although the invention has been described in connection with several particular embodiments, it is obvious that it is not limited thereto and that it comprises all the technical equivalents of the means described and their combinations if they are within the scope of the invention.

L'usage du verbe « comporter », « comprendre » ou « inclure » et de ses formes conjuguées n'exclut pas la présence d'autres éléments ou d'autres étapes que ceux énoncés dans une revendication. L'usage de l'article indéfini « un » pour un élément n'exclut pas, sauf mention contraire, la présence d'une pluralité de tels éléments.The use of the verb "to include", "to understand" or "to include" and its conjugated forms does not exclude the presence of other elements or steps other than those set out in a claim. The use of the indefinite article "a" for an element does not exclude, unless otherwise stated, the presence of a plurality of such elements.

Dans les revendications, tout signe de référence entre parenthèses ne saurait être interprété comme une limitation de la revendication.In the claims, any reference sign in parentheses can not be interpreted as a limitation of the claim.

Claims (10)

Dispositif de secours comportant un accumulateur hydropneumatique relié à un récepteur hydraulique (9, 14) par une vanne (6) présentant un état fermé par défaut, et un dispositif de commande (7) apte à commuter ladite vanne dans un état passant pour provoquer l'alimentation du récepteur hydraulique par la pression de l'accumulateur hydropneumatique, caractérisé par le fait que ledit accumulateur hydropneumatique comporte un réservoir (1) rempli de liquide hydraulique (12) dans lequel est immergée une enceinte (10) en matière totalement étanche au gaz dans la durée remplie d'un gaz sous pression, ladite enceinte étant apte à se rompre en réponse à l'ouverture de ladite vanne (6) pour libérer la pression du gaz.Emergency device comprising a hydropneumatic accumulator connected to a hydraulic receiver (9, 14) by a valve (6) having a closed state by default, and a control device (7) able to switch said valve in a conducting state to cause supply of the hydraulic receiver by the pressure of the hydropneumatic accumulator, characterized in that said hydropneumatic accumulator comprises a reservoir (1) filled with hydraulic fluid (12) in which is immersed a chamber (10) made of a totally gas-tight material in the filled duration of a pressurized gas, said enclosure being able to break in response to the opening of said valve (6) to release the pressure of the gas. Dispositif de secours selon la revendication 1, dans lequel le réservoir comporte une enveloppe métallique (1) présentant une extrémité fermée (2) et une extrémité ouverte (3) qui est vissée, avec interposition de joints d'étanchéité sur un embout (4) comportant une conduite (5) reliée audit récepteur hydraulique et munie de ladite vanne (6).Emergency device according to claim 1, wherein the reservoir comprises a metal casing (1) having a closed end (2) and an open end (3) which is screwed, with the interposition of seals on a tip (4) comprising a pipe (5) connected to said hydraulic receiver and provided with said valve (6). Dispositif de secours selon la revendication 2, dans lequel la vanne est commandée par un levier de manoeuvre (7).Emergency device according to claim 2, wherein the valve is controlled by an operating lever (7). Dispositif de sécurité selon la revendication 2 ou 3, dans lequel l'enveloppe métallique est de section cylindrique, l'extrémité fermée (2) de l'enveloppe métallique est de forme hémisphérique et l'enceinte (10), totalement étanche dans la durée, est de forme sphérique et logée dans la partie hémisphérique (2) de l'enveloppe (1) dont elle épouse la forme.Safety device according to claim 2 or 3, wherein the metal casing is of cylindrical section, the closed end (2) of the metal casing is of hemispherical shape and the enclosure (10), completely sealed in duration , is of spherical shape and housed in the hemispherical portion (2) of the envelope (1) whose shape it conforms. Dispositif de secours selon l'une des revendications 1 à 4, dans lequel l'enceinte comporte une valve de remplissage accessible depuis l'extérieur du réservoir de liquide.Emergency device according to one of claims 1 to 4, wherein the chamber comprises a filling valve accessible from outside the liquid tank. Dispositif de sécurité selon l'une des revendications 1 à 5, dans lequel le récepteur comporte un vérin (9).Safety device according to one of claims 1 to 5, wherein the receiver comprises a jack (9). Dispositif de sécurité selon la revendication 6, dans lequel le piston (13) du vérin actionne un interrupteur de courant en réponse à l'ouverture de la vanne.Safety device according to claim 6, wherein the piston (13) of the actuator actuates a current switch in response to the opening of the valve. Dispositif de sécurité selon l'une des revendications 1 à 5, dans lequel le récepteur comporte un moteur hydraulique (14).Safety device according to one of claims 1 to 5, wherein the receiver comprises a hydraulic motor (14). Dispositif de sécurité selon la revendication 8, dans lequel le moteur hydraulique (14) actionne la turbine du moteur d'un hélicoptère en réponse à l'ouverture de la vanne.The safety device of claim 8, wherein the hydraulic motor (14) drives the engine turbine of a helicopter in response to opening of the valve. Dispositif de secours selon l'une des revendications 1 à 9, dans lequel ladite enceinte (10) est réalisée en matière souple et étanche au gaz.Emergency device according to one of claims 1 to 9, wherein said enclosure (10) is made of flexible material and gas-tight.
EP13171587.2A 2012-06-26 2013-06-12 Emergency hydraulic device Not-in-force EP2679831B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1256074A FR2992377B1 (en) 2012-06-26 2012-06-26 HYDRAULIC RELIEF DEVICE

Publications (2)

Publication Number Publication Date
EP2679831A1 true EP2679831A1 (en) 2014-01-01
EP2679831B1 EP2679831B1 (en) 2015-11-18

Family

ID=46826765

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13171587.2A Not-in-force EP2679831B1 (en) 2012-06-26 2013-06-12 Emergency hydraulic device

Country Status (2)

Country Link
EP (1) EP2679831B1 (en)
FR (1) FR2992377B1 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3537605A (en) * 1969-01-13 1970-11-03 Ida Solowey Compartmented containers having a rupturable diaphragm between compartments
US3739947A (en) * 1969-08-01 1973-06-19 E Baumann Storing and mixing receptacle
US4029104A (en) * 1976-03-08 1977-06-14 Kerber Charles W Calibrated leak balloon micro-catheter
US4084602A (en) * 1975-12-04 1978-04-18 Systron-Donner Corporation Explosion discharge valve
US4509523A (en) * 1981-07-22 1985-04-09 Pevsner Paul H Method of using miniature balloon catheter for perfusing
US6142511A (en) * 1995-12-22 2000-11-07 Universal Propulsion Company Inflatable passenger restraint and inflator therefor
WO2003077974A1 (en) * 2002-03-11 2003-09-25 Jesse Albert Pizolato Syringe with rupturable bladder
US20080054617A1 (en) * 2004-05-29 2008-03-06 Wilfried Schwant Vehicle Having At Least One Seat For At Least One Vehicle Occupant And A Belt System

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3537605A (en) * 1969-01-13 1970-11-03 Ida Solowey Compartmented containers having a rupturable diaphragm between compartments
US3739947A (en) * 1969-08-01 1973-06-19 E Baumann Storing and mixing receptacle
US4084602A (en) * 1975-12-04 1978-04-18 Systron-Donner Corporation Explosion discharge valve
US4029104A (en) * 1976-03-08 1977-06-14 Kerber Charles W Calibrated leak balloon micro-catheter
US4509523A (en) * 1981-07-22 1985-04-09 Pevsner Paul H Method of using miniature balloon catheter for perfusing
US6142511A (en) * 1995-12-22 2000-11-07 Universal Propulsion Company Inflatable passenger restraint and inflator therefor
WO2003077974A1 (en) * 2002-03-11 2003-09-25 Jesse Albert Pizolato Syringe with rupturable bladder
US20080054617A1 (en) * 2004-05-29 2008-03-06 Wilfried Schwant Vehicle Having At Least One Seat For At Least One Vehicle Occupant And A Belt System

Also Published As

Publication number Publication date
EP2679831B1 (en) 2015-11-18
FR2992377A1 (en) 2013-12-27
FR2992377B1 (en) 2014-07-18

Similar Documents

Publication Publication Date Title
EP0959263B1 (en) Gas spring comprising a safety device
EP2205325B1 (en) Fluid ejection device with enhanced leaktightness
FR2957452A1 (en) ELECTRIC SWITCH WITH PYROTECHNIC ACTUATION
EP2654105B1 (en) System and method for detecting the opening of a seal member in a sealed accumulator
EP2127000B1 (en) Safety device for a watertight accumulator
FR2881580A1 (en) Sealed lithium-ion prismatic accumulator for e.g. hybrid vehicle, has circuit breaker with connection piece extending above container cover and insulated membrane that deforms under effect of excessive pressure in container, to break piece
EP0003925B1 (en) Hydropneumatic piston accumulator provided with a gas shortage detector
FR3117665A1 (en) Dielectric-increasing switchgear
EP2679831B1 (en) Emergency hydraulic device
EP3163249B1 (en) Igniter for propellant
WO2001007805A1 (en) Safety valve for sealed chamber containing a pressurised fluid such as a lpg tank
EP1295056B1 (en) Safety valve for tank containing a pressurised liquid fluid such as lpg
FR2957626A1 (en) OPEN EMERGENCY OPENING ACTUATOR FOR AN AIRCRAFT OPENER, COMPRISING GAS EXHAUST MEANS
WO2015150643A1 (en) Electric switch and associated electric apparatus
FR2925209A1 (en) PROTECTIVE DEVICE FOR CAPACITOR
EP4238170A1 (en) Adaptable safety device on an electrochemical cell
EP2769168B1 (en) Gas generator provided with a safety device for slow heating
FR2795801A1 (en) Safety valve for vehicle tank containing pressurised fluid such as LPG has valve spring pressure regulator, release element and stopper
FR2880659A1 (en) Emergency door drive assembly for aircraft, has pyrotechnic gas generator that generates gas in container connected to controllable actuating plunger, where generated gas produces low pressure in container for flowing in plunger
EP4175055A1 (en) Safety device adaptable to an electrochemical cell for blocking the current-switching device thereof
FR3113195A1 (en) Device adaptable to a cell for creating an incipient fracture on a wall of a cup of an electrochemical cell
EP1063667A1 (en) Medium voltage fuse with a visual indication of the opened condition in a fuse
BE550648A (en)
BE527300A (en)
FR2995033A1 (en) Continuous electrical energy generating immersed auxiliary system i.e. immersed electrical energy production module for submarine, has gas generating units for filling enclosure with gas by driving out liquid contained in units through pipe

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

17P Request for examination filed

Effective date: 20140609

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: F15B 1/10 20060101AFI20150105BHEP

Ipc: F15B 1/02 20060101ALI20150105BHEP

INTG Intention to grant announced

Effective date: 20150120

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20150610

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 761733

Country of ref document: AT

Kind code of ref document: T

Effective date: 20151215

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602013003826

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20160218

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 761733

Country of ref document: AT

Kind code of ref document: T

Effective date: 20151118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160318

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151118

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151118

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160218

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151118

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151118

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160219

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151118

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151118

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151118

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160318

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151118

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151118

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 4

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151118

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602013003826

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151118

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151118

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151118

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151118

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151118

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20160819

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151118

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160630

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160612

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20170614

Year of fee payment: 5

Ref country code: FR

Payment date: 20170630

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20170622

Year of fee payment: 5

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20170612

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170612

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151118

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20130612

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151118

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151118

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160612

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151118

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602013003826

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180630

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190101

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180612