Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
  • H01M50/30—Arrangements for facilitating escape of gases
  • H01M50/317—Re-sealable arrangements
  • H01M50/325—Re-sealable arrangements comprising deformable valve members, e.g. elastic or flexible valve members
  • H01M50/333—Spring-loaded vent valves
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K15/00—Check valves
  • F16K15/02—Check valves with guided rigid valve members
  • F16K15/06—Check valves with guided rigid valve members with guided stems
  • F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
  • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
  • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
  • F16K17/0413—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of closure plates
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
  • F16K17/18—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side
  • F16K17/19—Equalising valves predominantly for tanks
  • F16K17/196—Equalising valves predominantly for tanks spring-loaded
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
  • H01M50/30—Arrangements for facilitating escape of gases
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
  • H01M50/30—Arrangements for facilitating escape of gases
  • H01M50/375—Vent means sensitive to or responsive to temperature
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
  • H01M50/30—Arrangements for facilitating escape of gases
  • H01M50/383—Flame arresting or ignition-preventing means
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M2200/00—Safety devices for primary or secondary batteries
  • H01M2200/10—Temperature sensitive devices
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M2200/00—Safety devices for primary or secondary batteries
  • H01M2200/20—Pressure-sensitive devices
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M2220/00—Batteries for particular applications
  • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane

Definitions

• the invention relates to the field of energy storage means, in particular of the type used in vehicles, for example of the type for moving materials and/or people, these storage means implementing solutions of the type electrochemical.
• the invention relates in particular to an application linked to batteries, in particular lithium-ion batteries, which consist of a sealed envelope comprising a set of unit cells and most of the time electronic and power components for their interconnection and control.
• batteries in particular lithium-ion batteries, which consist of a sealed envelope comprising a set of unit cells and most of the time electronic and power components for their interconnection and control.
• electrochemical storage means for example fuel cells
• electrochemical storage means must be impervious to water and dust, for example, but be able to exchange a certain quantity of air with the ambient environment, and this in both direction, in order to balance the pressure. This makes it possible to reduce the constraints on the envelope which contains these storage means, to facilitate transport and to ensure optimal use whatever the external conditions (temperature and pressure).
• the invention firstly relates to a valve, or breathing valve, for an enclosure or an envelope of an energy storage device, for example in electrochemical form, for example a battery, for example also a lithium type battery. - ion, this valve itself comprising:
• - activation means for activating the means forming a valve between a first position, called opening, of the valve and a second position, called closing of the valve.
• these means allow:
• a pressure and/or a temperature, called reference for example equal to the pressure and/or or the temperature of the interior atmosphere, or the difference in pressure and/or temperature between the interior atmosphere and the exterior atmosphere, or the variation in pressure and/or temperature of the interior atmosphere and/or of the external atmosphere, for example for a predetermined duration
• the invention also relates to a valve, or breathing valve, for an enclosure or an envelope of an energy storage device in electrochemical form, for example a battery, for example also a lithium-ion type battery, this valve comprising itself:
• valve - means forming a valve.
• these means forming a valve allow:
• a pressure and/or temperature, called reference for example equal to the pressure and/or temperature of the interior atmosphere or to the difference in pressure and/or temperature between the interior atmosphere and the exterior atmosphere, or to the variation in pressure and/or temperature of the atmosphere interior and/or the exterior atmosphere, for example for a predetermined duration, is lower than a pressure and/or temperature limit value
• the invention relates to a breathing valve which can be closed, for example in the case of overpressure and/or heating of the atmosphere internal to the valve or to an envelope provided with this valve; the invention also relates to a method of controlling or operating such a valve.
• the activation means or the means forming a valve can:
• said at least one thermodynamic parameter, or its difference between the interior atmosphere and the exterior atmosphere comprises at least the pressure and/or the temperature of the interior atmosphere and/or of the exterior atmosphere, or the difference in pressure and/or temperature between the interior atmosphere and the exterior atmosphere and/or a variation in pressure (or pressure difference) and/or temperature (or temperature difference ) of the interior atmosphere and/or the exterior atmosphere (or between the interior atmosphere and exterior atmosphere).
• the means forming a valve can, in the closed position, come to bear against an interior part of the body of the valve, for example when at least one thermodynamic parameter has a value greater than a limit value, for example when the pressure and/or temperature, called reference, is for example greater than the pressure and/or temperature, limit or for example when the difference in temperature and pressure is greater than a value limit.
• a limit value for example when the pressure and/or temperature, called reference, is for example greater than the pressure and/or temperature, limit or for example when the difference in temperature and pressure is greater than a value limit.
• the means forming a valve comprise a piston.
• the means forming a valve may comprise a part in contact with the interior atmosphere of the valve and a part in contact with the exterior atmosphere of the valve;
• the means forming a valve can move over a limited stroke, in the first position, by a stop.
• This stop can be located on the interior side of the valve, or on the exterior side of the valve.
• a valve according to the invention, or the means for activating the valve of a valve according to the invention may/may comprise, or a method according to the invention may implement, means for constraining the means forming a valve in open position, for example up to a limit pressure.
• these means for constraining the means forming a valve may comprise a spring bearing on the one hand against the means forming a valve and on the other against the membrane support.
• a valve, or a valve controlled or controlled by a method according to the invention may comprise, or be associated with, at least one pressure sensor and/or at least one temperature sensor and/or at least one sensor.
• voltage to measure at least one pressure and/or at least one temperature and/or at least one voltage of the device or of an energy storage device, for example at the terminals of this energy storage device and/ or a voltage supplied by it, or a variation of this pressure and/or this temperature, internal to the valve and/or external to the valve and/or of this voltage; possibly, means, for example one or more connection(s) between said at least one such sensor and an actuator as mentioned above to provide the latter with at least one piece of pressure and/or temperature information, external to the valve and/or at least one piece of pressure and/or temperature information, internal to the valve and/or at least one piece of voltage information, for example from the device or an energy storage device, measured at the terminals of it or provided by it.
• the actuator can therefore be controlled by signals coming from one or more pressure and/or temperature and/or voltage sensors, for example external(s) and/or internal(s) to the valve or to the valve. envelope which is fitted with this valve.
• at least one pressure sensor and/or at least one temperature sensor is provided inside the valve and/or at least one pressure sensor and/or at least one temperature sensor is provided inside the valve.
• the exterior of the valve and/or at least one voltage sensor is provided and/or a method according to the invention implements one or more of said sensors.
• the means for moving the means forming a valve may comprise mechanical means for driving the means forming a valve.
• the actuator means actuate a rod or a bar mechanically linked to the valve means, for example to the piston or to the rod which extends it.
• the invention also relates to an enclosure or a device for storing energy in electrochemical form, for example a battery, for example also a lithium-ion battery, comprising an envelope containing one or more energy storage elements, for example a or several battery packs, this envelope being provided with a breathing valve according to the invention.
• a battery for example also a lithium-ion battery
• an envelope containing one or more energy storage elements, for example a or several battery packs, this envelope being provided with a breathing valve according to the invention.
• a storage enclosure according to the invention may comprise a plurality of energy storage elements, each element being arranged in a module separated from each of the neighboring modules by a wall, at least one of said walls being provided with a valve. breathing according to the invention.
• each of said walls is provided with such a breathing valve according to the invention.
• each module can be provided with an evacuation valve which allows escape from the interior atmosphere of each module to the exterior atmosphere of the envelope when a thermodynamic parameter, for example such as described above, is greater than a limit value.
• each module can be connected to the external atmosphere by at least one connection channel.
• the breathing valve according to the invention of each module makes it possible to balance the atmosphere between the interior of each module and the exterior atmosphere of the storage enclosure.
• a valve according to the invention, or a valve controlled or controlled by a method according to the invention, or a valve mounted on or in a storage enclosure according to the invention may be associated with, or comprise, in addition, means to detect a failure in one or the energy storage device or in the storage enclosure.
• Such a failure may consist of the detection of an abnormal temperature and/or pressure within the device and/or a voltage of the device or of the energy storage enclosure or of a or several energy storage elements that it or it contains, and/or in the detection of an abnormal variation of one of these parameters.
• These means may include one or more temperature and/or pressure and/or voltage sensors, for example as already explained above.
• the invention also relates to a vehicle, for example for transporting people and/or goods, comprising for example a passenger compartment and/or a storage area, which can for example accommodate one or more passengers and/or goods, an engine, and at least one energy storage enclosure according to the invention, the breathing valve being in fluid communication with the passenger compartment and/or the storage zone; if, in addition, the enclosure is provided with an evacuation valve, then the latter allows gas to escape outside the passenger compartment and/or the storage area.
• a vehicle for example for transporting people and/or goods, comprising for example a passenger compartment and/or a storage area, which can for example accommodate one or more passengers and/or goods, an engine, and at least one energy storage enclosure according to the invention, the breathing valve being in fluid communication with the passenger compartment and/or the storage zone; if, in addition, the enclosure is provided with an evacuation valve, then the latter allows gas to escape outside the passenger compartment and/or the storage area.
• Such a vehicle can be for example:
• the invention also relates to a method of operating or controlling activation of a valve or an energy storage enclosure according to the invention.
• the invention also relates to a method of operating or controlling or activating a valve, or breathing valve, for example an enclosure of an energy storage device in electrochemical form, comprising a envelope, this valve, for example as explained above according to the present invention, itself comprising:
• the means forming a valve authorize, in a first position, the circulation between the interior atmosphere and the atmosphere interior to the valve, and close, in a second position, said circulation,
• activation means activate the means forming a valve between a first position, called opening, of the valve and a second position, called closing position of the valve, these activation means authorizing, in said first position, the circulation between the interior atmosphere and the atmosphere exterior to the valve, and close, in said second position, said circulation, for example when the reference pressure and/or temperature is greater than the pressure limit value and/or of temperature.
• the invention also relates to a method of controlling a valve according to the invention, for example as described above or in the present application, or for example an energy storage enclosure according to the invention, by example as described above or in the present application, or of a vehicle according to the invention, for example as described above or in the present application, this method comprising the activation of the means forming a valve between a first position, called opening, of the valve and a second position, called closing position of the valve, these means of activation: - authorizing, in said first position, circulation between the interior atmosphere and the atmosphere exterior to the valve,
• a method according to the invention may include the activation of said activation means by an operator, for example in the context of a maintenance or testing operation of the valve.
• a storage enclosure which may for example comprise a plurality of energy storage elements, each element being arranged in a module separated from each of the neighboring modules by a wall, at least one of said walls being provided with a breathing valve according to the invention, or with a method of operating or controlling or controlling such an enclosure, it is possible to isolate the module provided with the valve according to the invention from the neighboring module with which this valve communicates. If each wall is equipped with such a valve, each module can be isolated from its neighbors in the event of detection of an anomaly based on the detection of an abnormal value, or an abnormal variation, of one and/or or another of the parameters already mentioned above or later in this description.
• valve controlled or activated by a method according to the invention may have one or other of the characteristics set out above in connection with the valve according to the invention.
• a method according to the invention can be very advantageously implemented in an energy storage enclosure, in particular an energy storage enclosure according to the present invention, for example as described above, and/or in a vehicle, for example for transporting people and/or goods, in particular according to the present invention, for example as described above.
• the invention makes it possible to overcome balancing problems, for example pressure and/or temperature, of the assembly comprising energy storage elements, for example one or more batteries or battery packs.
• a valve according to the The invention allows gas exchange to be blocked. Overpressurized and/or overheated gases may possibly be evacuated through one or more evacuation valve(s). The same applies in the event of detection of an abnormal level of a parameter such as for example the voltage across an energy storage device according to the invention or supplied by such a device, or of a abnormal variation of said parameter, for example of said voltage level.
• FIG. 1 represents an exemplary embodiment of a breathing valve according to the invention in the open position
• FIG. 2 represents an exemplary embodiment of a breathing valve according to the invention in the closed position
• FIG. 3A] and FIG. 3B] represent an enclosure of a valve according to the invention, for which the piston stop is located outside the valve body.
• FIG. 4A and FIG. 4B represent an enclosure of a valve according to the invention, provided with an actuator for the valve protection valve.
• FIG. 4C and FIG. 4D represent an enclosure of a valve according to the invention, provided with a magnetic actuator for the valve protection valve.
• FIG. 5 represents an enclosure of an energy storage device comprising a valve according to the invention as well as an evacuation valve.
• FIG. 7A] - FIG. 7D represent various vehicles or machines, automobile, plane, boat, locomotive, equipped with an energy storage device comprising a valve according to the invention as well as an evacuation valve.
• Figures 1 and 2 represent an exemplary embodiment of a valve 100 according to the invention.
• It comprises a fixed body 1 placed in a dedicated orifice of the envelope 30 of an energy storage device in electrochemical form, for example a battery pack.
• the support 4 may comprise or be extended by a central cylindrical part 6, which extends towards the interior of the envelope and inside which a shaft 10 (or a rod or a bar) of a piston 8, forming a valve, will be able to slide.
• the piston or the valve is circular in shape, adapted to that of the valve shown. However, if the latter has another form, for example the form rectangular or square as already mentioned above, then the piston or the valve has a corresponding shape.
• a spring 12 maintains this piston 8 in the normally open position, allowing the circulation of an atmosphere between the interior volume Vj and the exterior volume V e of the envelope, in one direction or another.
• one or more seals 19 ensure tight movement of the shaft 10 in the central cylindrical part 6.
• Volume 15, internal to the valve, is either at the internal pressure if the piston is open or at the external pressure if the piston is in the closed position.
• a part 14 forming a stop limits the stroke of the piston under the action of the spring.
• this part 14 is fixed to the body 1, on the side of the interior volume Vi of the envelope.
• the spring can push the piston until it is blocked by the part 14, in a position in which the air or the atmosphere can circulate between the exterior volume V e and the interior volume Vj of the envelope.
• this part forming a stop can be installed at the end of the shaft 10.
• the piston 8 is in direct contact with the interior volume V, and with the exterior volume V e through the end of the shaft 10.
• the difference in pressure which is exerted on the piston is indeed the difference between the pressure inside the envelope and the pressure outside it.
• it is when the internal pressure exceeds a limit value, which allows spring 12 to be pushed back, that the piston is moved to its closed position.
• the piston 8 as well as its shaft 10 have a symmetry of revolution around the axis AA'. But, as already explained above, other shapes can be made.
• the piston moves in translation along this axis AA', in this example under the action of the spring 12 and/or a pressure or a pressure difference between the inside and the outside of the valve or of the envelope 30. If the valve and the piston on the valve have a shape different from the circular shape, the piston or the valve can nevertheless move in translation along an axis AA', preferably substantially perpendicular to the wall 30 in which the valve can be installed.
• the pressure difference between the inside and the outside of the valve or the envelope, or the pressure inside the envelope or the valve does not exceed a value allowing the spring 12 to be compressed: the piston remains abutting against the part 14 and the atmosphere can then circulate between the inside and the outside of the valve or the envelope, via the membrane, the membrane support and the space provided between piston 8 and body 1 (this space is visible in Figure 2).
• the air circulates with an air flow rate of between 0.5 and 100 l/min/cm 2 under a pressure difference of a few tens of mbar, for example between 20 mbar and 40 mbar.
• the pressure difference between the inside and the outside of the valve or the envelope exceeds the limit value, for example 50 mbar or 70 mbar, or more generally a limit pressure for example between 40 mbar or 50 mbar and 100 mbar, which allows the spring 12 to be compressed, or the pressure of the interior atmosphere of the envelope or the valve exceeds a value which also allows the spring 12 to be compressed.
• the piston is then pressed against an interior edge, or a lip, 16 of the body 1, thus stopping the circulation of the atmosphere between the exterior and the interior of the valve or the envelope.
• the membrane is protected against internal overpressure in the valve or in the envelope.
• Figures 4A and 4B represent variants of a valve according to the invention.
• the valve is provided with a member 92 which, in cooperation with an actuator 90, for example an electric motor, allows, via a transmission member 91, to drive the piston 8 in one direction or in the 'other along axis AA'.
• an actuator 90 for example an electric motor
• the member 92 is mechanically linked to the valve; for example, it penetrates the shaft or the rod 10.
• This member comprises for example a rod or a bar, part of which is furnished with notches or teeth, thus forming a rack, which can be driven in movement by the member 91, which includes for example a toothed wheel.
• the actuator 90 receives information relating to the external pressure and/or temperature from a pressure sensor 95 (and/or a temperature sensor 95'), which can be placed outside of the envelope valve, the pressure and/or the interior temperature being measured directly using a sensor which can for example be included in the actuator 90.
• Figure 5 represents an envelope 30 energy storage device in electrochemical form, for example comprising a plurality of battery packs 110.
• This envelope 30 is provided with a valve 100 according to the invention and a valve or a discharge or evacuation valve 17 in the event of overpressure and/or internal heating: the gas under pressure and/or overheating in the envelope escapes through this valve 17, while the membrane of the valve 100 is protected as explained above.
• an envelope 30 of a battery which comprises a plurality of cells 31-36, each cell being arranged in a module or section, separated from each neighboring module or section by a wall, each of the walls separating 2 neighboring modules can be provided with a valve 100 according to the present invention; an end cell may also include such a valve 100.
• a valve 100 may be provided with an actuator 90, for example according to one of the examples described above in connection with Figures 4A-4D.
• One or more module(s), for example each module, may also be provided with at least one valve or discharge or evacuation valve 17, as already presented above, this is that is to say allowing an escape of the gas or the atmosphere contained in the corresponding module when, for example, a temperature and/or a pressure internal to the module and/or, more generally, a thermodynamic parameter of the atmosphere interior to the module, possibly compared to a thermodynamic parameter of the atmosphere interior to one of the neighboring modules, exceeds a certain threshold value.
• valve 100 which equips the wall which separates the cells 32 and 33 will be sensitive, for example, to the pressure difference between the two compartments which house these two cells.
• the valve 100 will close, in the manner which has been explained above.
• each breathing valve which equips a wall which separates 2 neighboring cells reacts to the pressure difference with one of the neighboring modules, except the valve 100 which is fitted to the rightmost wall in Figure 6A, which reacts to the pressure difference between the module of the cell 36 and the external atmosphere.
• each module or section is connected to the exterior atmosphere by at least one connection channel 91, which can be connected to a conduit sheath 95, which opens for example outside the overall envelope 30 of the system, for example again outside a vehicle.
• each of the valves 100 will react to the difference in pressure and/or temperature, and/or, more generally, a thermodynamic parameter or its evolution, between the exterior atmosphere and the atmosphere inside the corresponding module.
• the atmosphere outside the valve 100 can be a passenger compartment of the vehicle (as illustrated in Figure 7A), for example occupied by passengers and/or goods, while the evacuation valve 17 allows evacuation overpressurized and/or overheated gases in an area not occupied by passengers and/or goods.
• the evacuation valve 17 allows evacuation overpressurized and/or overheated gases in an area not occupied by passengers and/or goods.
• the vehicles represented in Figures 7A - 7D, each equipped with an energy storage device 30 according to the present invention, can be:
• motor vehicle 200 Figure 7A
• construction vehicles for example of the excavator or backhoe type, or of the aircraft type (for example: airplane 210, Figure 7B) or of the space type, for example a space station or satellite; or, alternatively, of the type used in the maritime field, for example a boat 220 (FIG. 7C) or a ship or a boat or a submarine, or of the type used in the railway field, for example a locomotive 230 (FIG. 7D) or a wagon, or more generally of the type used as a vehicle for aerial or land or maritime locomotion.
• the breathing valve In the case of overpressure and/or overheating, a force is applied to the piston 8 which closes the breathing valve, which makes it possible to avoid bursting or damage to the membrane; this helps protect this breathing valve throughout the life of the battery or energy storage element.
• the breathing valve Under the effect of the internal pressure and/or temperature or the pressure and/or temperature difference between the internal atmosphere and the external atmosphere, will close and remain in the closed position as long as the applied pressure and/or temperature difference is greater than a limit value, for example greater than 50 mbar.
• the invention relates in particular to an application to batteries, in particular lithium-ion batteries, which consist of a sealed envelope comprising a set of unit cells and most of the time electronic and power components for their interconnection and control.
• batteries in particular lithium-ion batteries, which consist of a sealed envelope comprising a set of unit cells and most of the time electronic and power components for their interconnection and control.
• valve according to the invention has been described above in the context of actuation of the closing and opening valve as a function of pressure and/or temperature or pressure and/or temperature differences. But a valve according to the invention can also be activated as a function of another type of signal or as a function of an external action, for example from an operator, who wishes to control or test, for example as part of a maintenance operation, the operation of a valve according to the invention.
• the valve of a valve according to the invention can be provided with activation means such as the means 90 adapted and/or programmed to close or open the valve as a function of another type of signal, for example a variation in pressure and/or temperature, for example during a predetermined time interval (such a variation being compared to a limit value, or threshold, of variation in pressure and/or temperature), or an external action triggered by an operator.
• activation means such as the means 90 adapted and/or programmed to close or open the valve as a function of another type of signal, for example a variation in pressure and/or temperature, for example during a predetermined time interval (such a variation being compared to a limit value, or threshold, of variation in pressure and/or temperature), or an external action triggered by an operator.

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Electrochemistry (AREA)
• General Chemical & Material Sciences (AREA)
• Mechanical Engineering (AREA)
• Gas Exhaust Devices For Batteries (AREA)
• Electric Double-Layer Capacitors Or The Like (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=84370737

Family Applications (1)

Country Status (3)

Family Cites Families (4)

• 2022
  • 2022-10-06 FR FR2210261A patent/FR3140662A1/fr active Pending
• 2023
  • 2023-10-05 WO PCT/FR2023/051549 patent/WO2024074790A1/fr not_active Ceased
  • 2023-10-05 EP EP23798273.1A patent/EP4599501A1/de active Pending

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