EP3519322B1 - Vorrichtung zur ausgabe eines unter druck stehenden materials - Google Patents

Vorrichtung zur ausgabe eines unter druck stehenden materials Download PDF

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Publication number
EP3519322B1
EP3519322B1 EP17784371.1A EP17784371A EP3519322B1 EP 3519322 B1 EP3519322 B1 EP 3519322B1 EP 17784371 A EP17784371 A EP 17784371A EP 3519322 B1 EP3519322 B1 EP 3519322B1
Authority
EP
European Patent Office
Prior art keywords
piston
housing
striker element
fragile portion
rupture element
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
EP17784371.1A
Other languages
English (en)
French (fr)
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EP3519322A1 (de
Inventor
Raphaël TEOLDI
Marc LETOURNEUR
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.)
ArianeGroup SAS
Original Assignee
ArianeGroup SAS
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Filing date
Publication date
Application filed by ArianeGroup SAS filed Critical ArianeGroup SAS
Publication of EP3519322A1 publication Critical patent/EP3519322A1/de
Application granted granted Critical
Publication of EP3519322B1 publication Critical patent/EP3519322B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A62C13/02—Portable extinguishers which are permanently pressurised or pressurised immediately before use with pressure gas produced by chemicals
    • A62C13/22—Portable extinguishers which are permanently pressurised or pressurised immediately before use with pressure gas produced by chemicals with incendiary substances producing pressure gas
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
    • A62C35/023—Permanently-installed equipment with containers for delivering the extinguishing substance the extinguishing material being expelled by compressed gas, taken from storage tanks, or by generating a pressure gas
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/07—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • B05B15/55—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/0006—Spraying by means of explosions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
    • B05B9/0805—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material
    • B05B9/0838—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material supply being effected by follower in container, e.g. membrane or floating piston, or by deformation of container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
    • B05B9/0805—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material
    • B05B9/0844—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material the container being pressurised or compressed by a gas generated by a chemical reaction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/34—Cleaning or preventing clogging of the discharge passage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/44—Valves specially adapted therefor; Regulating devices
    • B65D83/50—Non-reclosable valves, e.g. for complete delivery in a single dose
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/60—Contents and propellant separated
    • B65D83/64—Contents and propellant separated by piston
    • B65D83/643—Contents and propellant separated by piston the propellant being generated by a chemical or electrochemical reaction

Definitions

  • the invention relates to a device for dispensing a pressurized material.
  • Such devices include a first chamber comprising a gas generator as well as a second chamber in which the liquid to be distributed is present, the first and second chambers being separated by the piston.
  • the gas generator is first actuated in order to pressurize the first chamber.
  • This excess pressure created in the first chamber is transmitted by the piston to the liquid thus making it possible to distribute it outside the device.
  • the piston moves in said device and the volume of the second chamber is gradually reduced.
  • the piston moves until it stops against the bottom of the device when the material distribution is complete.
  • the piston at the end of its stroke seals the system and the internal volume of the device thus remains pressurized.
  • This residual pressurization can in certain cases be a drawback.
  • the pipe remains filled with liquid.
  • the liquid present in the pipe does not participate in the desired function, this leads to a decrease in the efficiency of the device.
  • the invention aims to solve the problems of the devices of the state of the art mentioned above.
  • a device for dispensing a pressurized material comprising a body defining a pressurization chamber comprising a gas generator and a reservoir containing the material to be delivered, said reservoir being delimited by a bottom provided with an outlet orifice, the device further comprising a piston configured to move inside the body, the piston separating the pressurization chamber from the reservoir, the gas generator being configured to trigger the distribution of the material outside the body through the outlet opening by passing the piston from a first material storage position to a second position for the end of material distribution in which the piston is facing the bottom,
  • the piston having, in the first position, a housing closed by a fragile portion on the side of the pressurization chamber and open on the side of the reservoir, the housing containing a rupture element held in said housing and which defines a channel opening into the reservoir , said rupture element having a length greater than the length of the housing and projecting from the piston so that the brittle portion is ruptured by the rupture element when the piston is in the second position.
  • the gas generator is configured to produce pressurizing gas exerting pressure on the piston, this pressure being communicated by the piston to the material present in the reservoir.
  • the outlet orifice is, for its part, configured to allow delivery of the material outside the body following the pressurization of the reservoir by the gas generated in the pressurization chamber.
  • the invention advantageously makes it possible to provide a reliable device of simple design allowing at the end of distribution of the material, when the piston is in the second position, to automatically depressurize the interior of the body.
  • the design of the device according to the invention simply requires providing in the piston a blind housing closed on the side of the pressurization chamber and open on the side of the reservoir in which a rupture element is present.
  • This rupture element extends, when the piston is in the first position, projecting relative to the piston in the reservoir.
  • the rupture element has, moreover, a significant length, greater than that of the housing.
  • the gas generator is configured to, when triggered, set the piston in motion towards the bottom in order to move the rupture element in the housing following the impact of the projecting portion of the element. breaking with the background. This displacement of the rupture element in the housing allows the fragile portion to be broken by impact with the latter.
  • the pressurization chamber is in communication with the reservoir and the outlet orifice via the channel defined by the rupture element in order to effect depressurization of the interior of the body.
  • the rupture element comprises, when the piston is in the first position, a first end facing the fragile portion and a second end projecting relative to the piston, the rupture element having a cavity extending between its first and second ends which defines said channel.
  • the pressurization chamber is in communication with the reservoir and the outlet through the cavity defined by the rupture element.
  • the cavity is an internal cavity of the rupture element.
  • the rupture element further comprises at least a first opening located on the side of the first end and communicating with the internal cavity.
  • Such a characteristic advantageously makes it possible to achieve effective depressurization even in the case where, after rupture, the fragile portion closes part of the internal cavity at the level of the first end. Depressurization takes place in such a case at least through the first opening.
  • the rupture element further comprises at least one second aperture located on the side of the second end and communicating with the internal cavity.
  • Such a characteristic further promotes the evacuation of the pressurizing gas, in particular through the second aperture.
  • the rupture element is further provided with a through slot extending between its first and second ends and communicating with the internal cavity.
  • the slot gives the rupture element an elasticity facilitating its insertion into the housing during the manufacture of the device.
  • the through slit which communicates with the internal cavity further promotes the depressurization of the interior of the body.
  • the rupture element comprises a tubular wall surrounding the internal cavity, the first and second openings being, when they are present, through openings made in the tubular wall.
  • the cavity is defined by a groove present on the external surface of the rupture element.
  • the rupture element comprises, when the piston is in the first position, a first end facing the fragile portion and a second end projecting relative to the piston, said channel being defined by a volume located between the rupture element and a wall of the housing and extending between the first and second ends of the rupture element.
  • the pressurization chamber is in communication with the reservoir and the outlet orifice via a volume delimited by the rupture element and the wall of the housing.
  • the housing comprises, when the piston is in the first position, a first part in which the rupture element is held and located on the side of the fragile portion and a second part, located on the side of the reservoir, enlarged compared to the first part.
  • the presence of the second widened part of the housing further promotes the evacuation of the pressurizing gas.
  • the rupture element comprises a portion of bevelled shape located opposite the fragile portion when the piston is in the first position.
  • Such a characteristic is advantageous because it makes it possible to obtain a rupture with tilting of the fragile portion and thus to prevent the latter from obstructing the channel once ruptured.
  • the material to be dispensed is in liquid form.
  • the material to be dispensed may be in the form of a foam or in powder form.
  • the gas generator is a pyrotechnic gas generator.
  • the gas generator can be a pressurized gas tank.
  • the present invention also relates to a fire extinguisher formed by a device as described above in which the material to be delivered is an extinguishing agent.
  • the invention is however not limited to the implementation of the device described above as an extinguisher.
  • the device described above can, as a variant, form a lubricating device in which the material to be delivered is a lubricant, such as a lubricating oil.
  • the figure 1 shows a device 100 for dispensing a pressurized material according to a first exemplary embodiment of the invention.
  • the piston 150 of the device 100 is shown in figure 1 as being in the first position, corresponding to a material storage position in device 100.
  • the device 100 comprises a body 110 of elongated shape.
  • the body extends along an axis A.
  • the body 110 has an axisymmetric shape around the axis A.
  • the body 110 is, in the example illustrated, cylindrical in shape.
  • the body 110 of the device is closed at a first end by a first bottom 120 on which is fixed a pyrotechnic gas generator 130, and at a second end by a second bottom 140.
  • a pressurized gas tank could be used. location of the pyrotechnic gas generator.
  • the axis A connects the first base 120 to the second base 140 and generally corresponds to the direction of movement of the piston 150 in the body 110.
  • the piston 150 is present inside the body 110.
  • the piston 150 When the piston 150 is in the first position, the latter defines inside the body 110 two chambers separated in a sealed manner by said piston 150, one forming a chamber pressurization 160 in which the gas generator 130 is present, and the other forming a reservoir 170 in which is stored the material intended to be delivered by the device 100.
  • the material intended to be delivered may for example be a liquid, a foam or powdery material.
  • the first bottom 120 defines the pressurization chamber 160.
  • the second bottom 140 for its part, defines the reservoir 170.
  • the pyrotechnic gas generator 130 comprises a pyrotechnic charge 131 intended to generate gas by its combustion to pressurize the pressurization chamber 160.
  • the gas generator 130 comprises an opening 132 centered on the axis A and comprising a flared part, through which the gases resulting from the combustion of the charge 131 can reach the pressurization chamber 160.
  • Such a pyrotechnic gas generator 130 is known per se, and will not be detailed here further.
  • the second bottom 140 of the device 100 is provided with an outlet orifice 141, consisting in the example illustrated in a through bore made in the second bottom 140.
  • the outlet orifice 141 is closed by a membrane 142 configured to rupture when a determined pressure threshold in the reservoir 170 is exceeded in order to distribute the material thus pressurized outside the device 100.
  • the piston 150 has an axisymmetric shape around the axis A and is, for example, as illustrated, of cylindrical shape.
  • the piston 150 comprises a pressure application portion 151 extending transversely, for example perpendicularly, with respect to the axis A.
  • the pressure application portion 151 has the shape of a disc.
  • the piston 150 further comprises a skirt 152, here of cylindrical shape, extending from the portion 151 in the direction of the first base 120.
  • a piston could be used without such a skirt.
  • the portion 151 is provided with a groove 153 in which is present a seal 154, for example of O-ring shape, which seals between the pressurization chamber 160 and the reservoir 170.
  • the seal 154 is positioned between the portion 151 and the body 110.
  • a housing 155 is provided in the piston 150, in the pressure application portion 151.
  • the housing 155 is a blind housing which is closed by a fragile portion 157 on the side of the valve. pressurization chamber 160 and which opens into the reservoir 170.
  • the piston 150 is in the first position, there is no communication between the pressurization chamber 160 and the reservoir 170. In this first position, the chamber 160 and the reservoir 170 are separated in a sealed manner by the piston 150 and in particular by the fragile portion 157 of the piston 150.
  • a rupture element 180 is held in the housing 155.
  • the figure 2 shows more details of the housing 155 and the rupture member 180 when the piston 150 is in the first position.
  • the housing 155 extends along an axis A1 parallel to the axis A.
  • the fragile portion 157 is here in the form of a portion of reduced thickness.
  • the fragile portion 157 is, in the example illustrated, formed monolithically with the pressure application portion 151.
  • the pressure application portion 151 has a fragile portion 157 having a thickness less than the thickness of the portion 151 elsewhere than on said fragile portion 157.
  • the pressure application portion 151 has, moreover, a first face 151a located on the side of the pressurization chamber 160 and a second face 151b located on the side of the reservoir 170.
  • the housing 155 comprises a first part 155a in which the rupture element 180 is held located on the side of the fragile portion 157 and a second flared part 155b extending from the first part 155a and located on the side of the reservoir 170.
  • the diameter of the first part 155a is less than the diameter of the second part 155b.
  • the second part 155b extends progressively widening towards the reservoir 170.
  • the second part 155b is here in the form of a conical countersink but it is not beyond the scope of the invention when it has a different shape.
  • the rupture element 180 extends along a longitudinal axis corresponding to the axis A1 of the housing 155.
  • the rupture element 180 extends between a first end 180a facing the fragile portion 157 and a second end 180b in projection with respect to the piston 150 and located in the reservoir 170.
  • the second end 180b projects from the piston 150 by a non-zero distance d measured between said second end 180b and the second face 151b. Unless otherwise stated, the distance d is measured along the axis A1 of the housing 155.
  • the breaking element 180 is held by clamping in the first part 155a of the housing 155.
  • the breaking element 180 exerts a clamping force resulting from its contact with the wall of the housing 155.
  • the clamping force exerted by the breaking element 180 in the housing 155 ensures that it is held in position when the piston 150 is in the first position.
  • the rupture element 180 can be inserted by force into the housing 155. Because of its retention, the rupture element 180 does not break the fragile portion 157 before actuation of the generator 130 when the material is tossed about due to vibrations. or shocks undergone by the device 100. Thus the seal between the reservoir 170 and the pressurization chamber 160 is preserved before use of the device 100.
  • the first end 180a is spaced by a non-zero distance from the fragile portion 157 but it would alternatively be possible for the first end 180a to be in contact with the fragile portion 157 when the piston 150 is in the first position.
  • the rupture element 180 has a length l 1 greater than the length l 2 of the housing 155. This feature ensures that the rupture element can effectively, after impact with the second bottom 140, break the fragile portion 157. Unless stated otherwise, the lengths of the rupture element and the housing are measured along the axis A1 of the housing 155.
  • the implemented rupture element 180 has a split tube structure having the structure illustrated on figure 3 .
  • the element of rupture 180 comprises a tubular wall 183 defining an internal cavity 182.
  • the internal cavity 182 is a through cavity and extends between the first end 180a and the second end 180b.
  • the internal cavity 182 extends over the entire length l 1 of the rupture element 180.
  • this internal cavity 182 defines a channel opening into the reservoir 170. As will be illustrated below, this channel allows, when the piston 150 is in the second position, to put the pressurization chamber 160 in communication with the outlet port 141 in order to depressurize the device 100.
  • the rupture element 180 also has at least two first openings 184a located on the side of the first end 180a.
  • the first openings 184a are through openings formed in the tubular wall 183 which communicate with the internal cavity 182.
  • the first openings 184a are formed in a transverse direction, for example perpendicular, to the longitudinal axis of the rupture element 180.
  • the first openings 184a are diametrically opposed in the example illustrated, but other relative configurations between these first openings can be envisaged within the framework of the present invention.
  • the rupture element 180 also has at least two second openings 184b located on the side of the second end 180b.
  • the second openings 184b are through openings formed in the tubular wall 183 which communicate with the internal cavity 182.
  • the second openings 184b are formed in a transverse direction, for example perpendicular, to the longitudinal axis of the rupture element 180.
  • the second openings 184b are diametrically opposed in the example illustrated but other relative configurations are possible.
  • the first / second openings 184a / 184b here have a substantially circular shape but other shapes can be envisaged, such as polygonal shapes for example.
  • the rupture element could have a single first / second aperture.
  • the rupture element 180 is further provided with a through slot 187 (see figure 3 ) which extends between its first 180a and second 180b ends and communicating with the internal cavity 182.
  • the through slot 187 extends over the entire length l 1 of the rupture element 180.
  • the through slot 187 is a longitudinal slot extending along the longitudinal axis of the rupture element 180.
  • the through slot 187 has a rectilinear shape in the example illustrated.
  • the presence of the slot 187 is advantageous in order to give a certain elasticity to the rupture element and thus facilitate its insertion into the housing 155.
  • the clamping force holding the rupture element 180 in the housing 155 can be adapted by depending on the diameter of the slotted tube, the thickness of the tubular wall 183, the material used or the diameter of the housing 155.
  • the figure 4 shows the device 100 described above, during distribution of the material, when the piston 150 passes from the first position to the second position.
  • the gas generator 130 has just been triggered, the gases have pressurized the pressurization chamber 160 and exert a force on the piston 150.
  • the force exerted by the gases on the piston 150 makes it possible to set the latter in motion towards the second bottom 140 and thus to distribute the material outside the device 100 through the outlet orifice 141.
  • the fragile portion 157 is configured so as not to be broken under the effect of the pressure imposed by the gas generated in it. the pressurization chamber 160.
  • the breaking element rupture 180 will slide into the housing and its first end 180a will thus break the fragile portion 157 by impact.
  • the force exerted by the second bottom 140 on the rupture element 180 during impact is strictly greater than the force of clamping the rupture element 180 in the housing 155 so that the rupture element 180 is pressed into the housing.
  • the rupture element 180 is driven into the housing and has ruptured the brittle portion.
  • the piston 150 is opposite the second bottom 140.
  • the second face 151b of the piston can be in abutment against the second bottom 140 when the piston 150 is in the second position.
  • the second end 180b of the rupture element 180 may be in abutment against the second bottom 140 when the piston 150 is in the second position.
  • the rupture element 180 is not located in the extension of the outlet orifice 141 but is offset from the latter.
  • the second widened part 155b of the housing opens, when the piston 150 is in the second position, facing the outlet orifice 141.
  • the second openings 184b and the slot 187 open, when the piston 150 is in the second position, in the second enlarged part 155b of the housing 155.
  • the figure 5 shows the path E for evacuating the pressurization gases to the outside of the device 100. These gases pass through the first openings 184a, the internal cavity 182, the through slot 187 and the second openings 184b to finally be evacuated through the outlet 141.
  • the presence of the first openings 184a makes it possible to achieve effective depressurization even in the case where, after rupture, the fragile portion 157 would block a part of the internal cavity 182 at the level of the first end 180a .
  • the device thus enables automatic depressurization of the interior of the body 110 at the end of distribution of the material. Furthermore, when a distribution channel (not shown) is attached to the outside of the device 100 at the level of the outlet port 141, the contents of this channel filled with material are purged by the gas escaping from the outlet. outside of the device. In this way, a larger quantity of material effectively participates in the desired function and the efficiency of the device is thus improved.
  • the breaking element 280 shown in figure 6 is in the form of a tube. It comprises a tubular wall 283 defining an internal cavity 282 extending between its first end 280a and its second end 280b. It has no longitudinal slit but has two first openings 284a located on the side of the first end 280a and two second openings 284b located on the side of the second end 280b.
  • the breaking element 380 shown in figure 7 is in the form of a tube. It comprises a tubular wall 383 defining an internal cavity 382 extending between its first end 380a and its second end 380b. It is also devoid of longitudinal slit but presents two first openings 384a located at the first end 380a and two second openings 384b located at the second end 380b.
  • the first and second openings 384a and 384b are, in the example illustrated, in the form of notches.
  • the breaking element 480 shown in figure 8 is in the form of a tube. It comprises a tubular wall 483 defining an internal cavity 482 extending between its first end 480a and its second end 480b. It does not have first and second openings but has a longitudinal slot 487. When the piston is in the second position, the evacuation of the gases to the outlet orifice takes place at least through the longitudinal slot 487.
  • the breaking element 580 shown in figure 9 is in the form of a tube. It comprises a tubular wall 583 defining an internal cavity 582 extending between its first end 580a and its second end 580b. It has no first and second openings as well as a longitudinal slot. When the piston is in the second position, the evacuation of the gases towards the outlet orifice takes place through the internal cavity 582.
  • a rupture element 580 can be used in a device of the type described in figure 1 by providing the second bottom 140 with one or more reliefs forming abutments making it possible to provide a space between the second face 151b of the piston 150 and the outlet orifice 141 when the piston is in the second position.
  • the breaking element 580 can also be used in other types of device according to the invention as will be detailed below.
  • the breaking element 680 shown in figure 10 is in the form of a tube comprising a portion of bevelled shape at its first end 680a.
  • the plane P1 containing the first end 680a forms with the plane P2 perpendicular to the axis A1 of the rupture element a non-zero angle ⁇ .
  • the rupture element 680 includes a tubular wall 683 defining an internal cavity 682 extending between its first end 680a and its second end 680b.
  • the rupture element does not have a first opening but has a longitudinal slot 687 as well as second openings 684b.
  • the evacuation of the gases towards the outlet orifice takes place through the internal cavity 682, the longitudinal slot 687 and the second openings 684b.
  • a breaking element could be used with a bevelled portion as illustrated but which does not have a second aperture or the longitudinal slot.
  • the figure 11 illustrates an alternative rupture element 780 which does not have a tubular shape.
  • the rupture element 780 comprises a longitudinal groove 782 on its outer surface 783 which defines the channel.
  • the groove 782 extends between the first end 780a and the second end 780b and defines a cavity of the rupture element.
  • the figure 12 illustrates a variant of the device according to the invention in which the housing does not have an enlarged second part, unlike the device illustrated on figure 1 .
  • the breaking element 580 is as shown in figure 9 .
  • the rupture element 580 has an external diameter d2 which is greater than the diameter d1 of the outlet orifice 241. Furthermore, the rupture element 580 is located in the extension of the outlet orifice 241 when the piston 250 is in the second position. More precisely, the internal cavity 582 opens out opposite the outlet orifice 241 when the piston 250 is in the second position.
  • the figure 13 illustrates a variant of piston 350 in the first position in which the fragile portion 357 is no longer formed monolithically with said piston 350 but is instead in the form of an added element.
  • the rupture element 880 is held in a first housing 355 which is open on the side of the reservoir.
  • the piston further comprises a second housing 352 open on the side of the pressurization chamber 360 in which is present a nut 357 screwed to the rupture element 880.
  • the rupture element 880 has, on the side of its first end, a thread cooperating with an internal thread formed inside the nut 357.
  • the nut 357 closes the first housing 355 on the side of the pressurization chamber.
  • the rupture element separates from the thread of the nut and passes through the latter in order to ensure the evacuation of the gases.
  • the fragile portion could alternatively be attached to the piston by welding.
  • the figure 14 represents a variant of the device according to the invention.
  • the piston 450 is in the first position.
  • the example of figure 14 is a case where the rupture element 980 is solid and does not have a groove on its outer surface.
  • the pressure applying portion 451 of the piston 450 has a blind housing 455 in which the rupture element 980 is present.
  • the housing 455 is, in the example illustrated, closed on the side of the pressurization chamber 360 by a fragile portion 457 welded to the piston 450.
  • the housing 455 also has an opening opening into the reservoir 370.
  • the first end 980a of the The rupture element 980 is located on the side of the fragile portion 457 and the second end 980b of the rupture element 980b protrudes from the piston 450 in the reservoir 370.
  • the piston 450 defines clamping portions 452 intended to exert a clamping force on the breaking element 980 in order to hold it in position in the housing 455 when the piston 450 is in the first position.
  • the clamping portions 452 are in the form of protruding reliefs.
  • the reliefs 452 are distributed around the axis of the housing.
  • the reliefs 452 may or may not be uniformly distributed around the axis of the housing.
  • Channels 453 are located between the reliefs 452.
  • a pair of two adjacent reliefs 452 defines a channel 453 which extends along the axis. of the housing 455.
  • Each channel 453 is located between the rupture element 980 and a wall 456 of the housing 455.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrochemistry (AREA)
  • Safety Valves (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Claims (12)

  1. Vorrichtung (100) zur Ausgabe eines unter Druck stehenden Materials, umfassend einen Körper (110), der eine Druckkammer (160; 260; 360) definiert, die einen Gasgenerator (130) und einen Behälter (170; 370) umfasst, der das zu liefernde Material enthält, wobei der Behälter durch einen Boden (140; 240; 340) begrenzt ist, der mit einer Austrittsöffnung (141; 241; 341) versehen ist, wobei die Vorrichtung ferner einen Kolben (150; 250, 350; 450) umfasst, der dazu ausgestaltet ist, sich im Inneren des Körpers (110) zu verschieben, wobei der Kolben die Druckkammer von dem Behälter trennt, wobei der Gasgenerator (130) dazu ausgestaltet ist, die Ausgabe des Materials an die Außenseite des Körpers (110) durch die Austrittsöffnung (141; 241; 341) auszulösen, indem der Kolben von einer ersten Materiallagerposition zu einer zweiten Materialausgabe-Endposition verläuft, in welcher sich der Kolben gegenüber dem Boden (140; 240; 340) befindet,
    wobei der Kolben (150; 250; 350; 450) in der ersten Position eine Aufnahme (155; 355; 455) aufweist, die durch einen zerbrechlichen Abschnitt (157; 357; 457) auf der Seite der Druckkammer (160; 260; 360) geschlossen und auf der Seite des Behälters (170; 370) offen ist, wobei die Aufnahme ein Brechelement (180-980) enthält, das in der Aufnahme gehalten wird und das einen Kanal definiert, der in den Behälter mündet, wobei das Brechelement eine Länge l1 aufweist, die größer als die Länge l2 der Aufnahme ist, und sich vorstehend in Bezug auf den Kolben erstreckt, sodass der zerbrechliche Abschnitt (157; 357; 457) durch das Brechelement durchbrochen wird, wenn sich der Kolben in der zweiten Position befindet.
  2. Vorrichtung (100) nach Anspruch 1, wobei das Brechelement (180-880), wenn sich der Kolben in der ersten Position befindet, ein erstes Ende (180a-780a) gegenüber dem zerbrechlichen Abschnitt und ein zweites Ende (180b-780b) vorstehend in Bezug auf den Kolben umfasst, wobei das Brechelement einen Hohlraum (182-782) aufweist, der sich zwischen seinem ersten und zweiten Ende erstreckt und der den Kanal definiert.
  3. Vorrichtung nach Anspruch 2, wobei der Hohlraum (182-682) ein innerer Hohlraum des Brechelements ist.
  4. Vorrichtung nach Anspruch 3, wobei das Brechelement ferner mindestens einen ersten Durchbruch (184a-384a) umfasst, der sich auf der Seite des ersten Endes befindet und mit dem inneren Hohlraum verbunden ist.
  5. Vorrichtung nach Anspruch 3 oder 4, wobei das Brechelement ferner mindestens einen zweiten Durchbruch (184b-384b; 684b) umfasst, der sich auf der Seite des zweiten Endes befindet und mit dem inneren Hohlraum verbunden ist.
  6. Vorrichtung nach einem der Ansprüche 3 bis 5, wobei das Brechelement ferner mit einem durchgehenden Schlitz (187; 487; 687) versehen ist, der sich zwischen seinem ersten und zweiten Ende erstreckt und mit dem inneren Hohlraum verbunden ist.
  7. Vorrichtung nach einem der Ansprüche 3 bis 6, wobei das Brechelement ferner eine rohrförmige Wand (183-683) umfasst, die den inneren Hohlraum (182-682) umgibt, wobei der erste und zweite Durchbruch, wenn sie vorhanden sind, durchgehende Durchbrüche sind, die in der rohrförmigen Wand vorgesehen sind.
  8. Vorrichtung nach Anspruch 2, wobei der Hohlraum (782) durch eine Nut definiert ist, die auf der Außenfläche des Brechelements (780) vorhanden ist.
  9. Vorrichtung nach Anspruch 1, wobei das Brechelement (780) ferner, wenn sich der Kolben (450) in der ersten Position befindet, ein erstes Ende (980a) gegenüber dem zerbrechlichen Abschnitt (457) und ein zweites Ende (980b) vorstehend in Bezug auf den Kolben umfasst, wobei der Kanal durch ein Volumen (453) definiert ist, das sich zwischen dem Brechelement (980) und einer Wand (456) der Aufnahme befindet und sich zwischen dem ersten und zweiten Ende des Brechelements erstreckt.
  10. Vorrichtung nach einem der Ansprüche 1 bis 9, wobei die Aufnahme (155), wenn sich der Kolben (150) in der ersten Position befindet, einen ersten Teil (155a), in dem das Brechelement (180) gehalten wird und der sich auf der Seite des zerbrechlichen Abschnitts (157) befindet, und einen zweiten Teil (155b) umfasst, der sich auf der Seite des Behälters befindet, der in Bezug auf den ersten Teil (155a) erweitert ist.
  11. Vorrichtung nach einem der Ansprüche 1 bis 10, wobei das Brechelement (680) einen Abschnitt in abgeschrägter Form (680a) umfasst, der sich gegenüber dem zerbrechlichen Abschnitt befindet, wenn sich der Kolben in der ersten Position befindet.
  12. Feuerlöscher, der mittels einer Vorrichtung (100) nach einem der Ansprüche 1 bis 11 gebildet ist, wobei das zu liefernde Material ein Löschmittel ist.
EP17784371.1A 2016-09-28 2017-09-27 Vorrichtung zur ausgabe eines unter druck stehenden materials Active EP3519322B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1659163A FR3056416B1 (fr) 2016-09-28 2016-09-28 Dispositif de distribution d'un materiau pressurise
PCT/FR2017/052598 WO2018060594A1 (fr) 2016-09-28 2017-09-27 Dispositif de distribution d'un materiau pressurise

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EP3519322A1 EP3519322A1 (de) 2019-08-07
EP3519322B1 true EP3519322B1 (de) 2020-11-04

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US (1) US11117005B2 (de)
EP (1) EP3519322B1 (de)
FR (1) FR3056416B1 (de)
WO (1) WO2018060594A1 (de)

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CN110772731A (zh) * 2019-10-12 2020-02-11 湖北航天化学技术研究所 一种非储压式灭火装置
CN113577621B (zh) * 2021-07-29 2024-03-19 北京世纪联保新能源科技有限公司 启动装置和灭火设备

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SE519852C2 (sv) * 2002-02-14 2003-04-15 Dafo Brand Ab Släckmedelsbehållare och system med behållare
DE102006032504A1 (de) * 2006-07-12 2008-01-17 Fogtec Brandschutz Gmbh & Co. Kg Löschfluidbehältnis mit automatischer Entleerung
RU2493892C2 (ru) * 2007-10-30 2013-09-27 Эрбюс Операсьон Устройство повышенной герметичности для выброса текучей среды
FR2936715B1 (fr) * 2008-10-03 2011-01-14 Airbus France Dispositif d'ejection d'un fluide a etancheite renforcee

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Also Published As

Publication number Publication date
EP3519322A1 (de) 2019-08-07
FR3056416B1 (fr) 2018-11-23
US20190290949A1 (en) 2019-09-26
US11117005B2 (en) 2021-09-14
FR3056416A1 (fr) 2018-03-30
WO2018060594A1 (fr) 2018-04-05

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