EP1552859B1 - Feuerlöschvorrichtung - Google Patents

Feuerlöschvorrichtung Download PDF

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Publication number
EP1552859B1
EP1552859B1 EP05100058A EP05100058A EP1552859B1 EP 1552859 B1 EP1552859 B1 EP 1552859B1 EP 05100058 A EP05100058 A EP 05100058A EP 05100058 A EP05100058 A EP 05100058A EP 1552859 B1 EP1552859 B1 EP 1552859B1
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EP
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Prior art keywords
pressure
extinguishing agent
tank
gas
bottle
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English (en)
French (fr)
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EP1552859A1 (de
Inventor
Christian Fabre
Christophe Bourdet
Philippe Mangon
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Airbus Operations SAS
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Airbus Operations SAS
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A62C13/66—Portable extinguishers which are permanently pressurised or pressurised immediately before use with extinguishing material and pressure gas being stored in separate containers
    • 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

Definitions

  • the invention relates to fire-fighting apparatus, ie fire extinguishers.
  • the invention finds its application in stationary fire extinguishing devices that can be remotely triggered, in which the extinguishing agent stored in a tank is expelled at the time of use.
  • the invention relates more particularly to a device for pressurizing the reservoir containing the extinguishing agent.
  • Fire extinguisher extinguishers are known to fall into two broad categories.
  • the first category concerns permanent pressure devices in which a gas ensures the permanent pressurization of the extinguishing agent within a single bottle serving as a reservoir; the extinguishing agent is released by a valve at the outlet of said bottle.
  • a propellant is released only when the extinguisher is put into service and releases the extinguishing agent, which is therefore not stored under pressure.
  • extinguishing device such as that described in the preamble of claim 1 is known from the document WO 01/78841 .
  • extinguisher of the first type it is possible to consider extinguishers currently used to extinguish an aircraft engine fire. These devices, using halon as extinguishing agent, not only allow to extinguish the fire, but also prevent any extension of said fire.
  • the extinguishing agent is contained in a bottle, most of the time spherical, pressurized by an inert gas; depending on the safety requirements, two or more fire extinguishers can be installed.
  • One or more distribution lines connected to said bottle, allow the distribution of the agent to the areas to be protected.
  • a calibrated seal closes off each distribution pipe.
  • a pressure sensor is also installed to continuously check the pressurization of the bottle. When a fire is detected, a pyrotechnic detonator is triggered. The resulting shock wave makes it possible to pierce the sealing cap, which causes the bottle to be emptied and the extinguishing agent to be evacuated under the effect of the pressure contained in the bottle towards the areas to be protected, via the pipes.
  • a first disadvantage of this type of pressurized extinguishers is their sensitivity to micro-leaks, which subjects them to severe conditions of monitoring, verification and maintenance.
  • the concentration C (t) obtained in a zone is a function, in particular, of the flow rate Q i of the agent extinguisher injected into said zone, the volume V of said zone, the disposition of the ejection means as well as the ventilation of the zone, that is to say the flow rate Q r of renewal air.
  • the concentration of halon for all the zones of fire of the engine is simultaneously at least 6% during a minimum duration of 0.5 seconds.
  • the five curves represent the evolution of the halon concentration during the discharge for five measurement points: the three discharge stages are shown there, namely the start-up (a), the maximum concentration (b ) then the concentration drop (c) related to the pressure drop in the bottle until the complete emptying.
  • the constraints of the regulations in force (d) are represented on this figure: the concentration of gas Fire extinguisher, for all engine fire zones, must be greater than 6% for a minimum of 0.5 seconds. In this figure, only a fire zone has been represented, but it is on the simultaneity of action of all the fire zones that the regulation criterion applies.
  • the extinguishing agent does not completely fill the bottle since it must be able to contain the pressurizing gas.
  • second category extinguishers they use a separate pressurizing device.
  • These fire-fighting devices are generally equipped with a first compressed gas tank and a second tank for the extinguishing agent.
  • the compressed gas contained in the first tank is communicated via an orifice to the second tank of extinguishing agent for the pressurization of the bottle containing the extinguishing agent.
  • the extinguishing agent is pressurized, it is ejected to fight the fire, as for appliances of the first category of fire extinguisher.
  • the second category of extinguisher is identical to the first, and therefore has the same disadvantages.
  • the first compressed gas reservoir can be replaced by a gas generator, as described in the document WO 98/02211 .
  • the reaction time required between the triggering of the extinguisher and the ejection of the extinguishing agent is prohibitive for certain cases of fire, or suspicions of fire, for example in aeronautics.
  • the problem of controlling the concentration of extinguishing agent in the area to be protected is not solved.
  • the object of the invention is to remedy the drawbacks mentioned of fire extinguishers, in particular in aircraft engines, among other advantages.
  • the invention relates in one aspect to a fire extinguishing device whose extinguishing agent is removed from the tank in which it is stored by a pressurized gas, the pressurized gas being brought and maintained in said tank in a regulated manner. Since the pressure in the reservoir follows a predetermined profile as a function of time, it is possible to obtain a concentration of extinguishing agent in the zone to be treated as close as possible to a desired concentration law.
  • the extinguishing device comprises a reservoir in which is stored the extinguishing agent, said reservoir being firstly connected, preferably near the accumulation point of said agent, to an extinguishing agent distribution network to the zones to be treated and being, secondly, connected, in general although not exclusively at a point substantially opposite the previous accumulation point, a means for generating a gas under pressure.
  • Means for closing the tank containing the extinguishing agent prevent the extinguishing agent from flowing into the distribution network in the absence of pressure in said tank.
  • Said closure means may consist of a valve whose opening is controlled during the trigger sequence of the extinguisher, either by an external order, or by pressurizing the reservoir. They can also consist of a sealable seal calibrated to break under pressure when the tank reaches the latter.
  • the pressure that must be exerted in the tank containing the extinguishing agent so that the rate of extinguishing agent leads to the desired concentration in the area to be treated (taking into account pressure losses, geometry of the areas to be treated, ...), which can be refined during experiments.
  • the parameters can be used for the choice and / or setting of regulation means.
  • Means for regulating the pressure in the tank make it possible to limit the exit rate of the extinguishing agent to the desired value, which value may vary according to a profile defined over time, without an unnecessarily excessive amount of agent extinguisher is sent to the areas to be treated; it is thus possible either to treat a zone longer and more efficiently with a given quantity of agent, or to use less agent while guaranteeing the concentration of extinguishing agent during a determined period of time.
  • the regulation means can be chosen and / or parameterized so as to obtain a "slot" pressure profile in which the pressure in the tank is substantially constant for a certain time, that is to say that it evolves between two close values.
  • the actual pressure does not deviate by more than 10%, preferably 5%, from the nominal value.
  • Successive trays can also be chosen as a profile.
  • the duration of the regulation is chosen according to the use, for example greater than or equal to 2 s, or 5 s.
  • a measurement of the concentration of extinguishing agent in the zones to be treated allows, possibly, a closed-loop regulation, even finer, of the pressure of the gas in the tank.
  • the means for generating the pressurized gas may comprise a pressurized gas storage: the pressurized gas is stored in a separate bottle, connected to said extinguishing agent reservoir, via example of a communication path.
  • the pressure regulating means may consist of flow or pressure control valves which can be controlled between a complete closure of the communication means between the pressurized gas bottle and the extinguishing agent tank, up to a maximum opening.
  • the control valves are controlled according to a given law and defined by the user, possibly using the information from the concentration of extinguishing agent concentration sensors (closed-loop or open-loop regulation as appropriate).
  • the regulation can also be provided by other regulating devices such as a regulator associated or not with a device that creates a pressure difference (diaphragm, nozzle).
  • the capacity of the pressurized gas cylinder advantageously also takes into account the effects of micro-leaks so that they do not affect the operational capabilities of a device according to the invention, at least between two periodic checks.
  • the gas which pressurizes said reservoir of extinguishing agent is generated at the time of use of the extinguisher by the combustion of a block of pyrotechnic material: the generating means can consist of a gas generator.
  • the geometry of the block of pyrotechnic material allows, similarly to the rocket powder propulsion systems, to generate combustion gases according to a predetermined law depending on the desired use. Once triggered, the combustion of the block of pyrotechnic material no longer requires control, the regulation means being constituted by the geometry of the gas generator and the reaction initiation mechanism. A valve may, however, also be present.
  • the extinguishing device can be triggered by a remote operator. It can also be put into operation directly by a device receiving the information of a sensor, which will detect the conditions related to the probability of a fire.
  • the device may be equipped with means of neutralization.
  • the extinguishing device, or fire extinguisher, 1 comprises a bottle 4, for example a spherical bottle, which serves as an extinguishing agent reservoir 6.
  • the bottle 4 is of preferably under ambient pressure; the extinguishing agent 6 may be a liquid: in fact, the precise control of the pressurization described below throughout the ejection of the extinguishing agent from the bottle 4 allows the use of new extinguishing agents difficult to spray, for example at very low saturated vapor pressure (close to solvents) which are rather in the liquid state, especially in the range of temperatures relevant to the aeronautical application.
  • the bottle 4 has one or more outlet orifices 8, which can be coupled to distribution lines 10, in order to allow the extinguishing agent 6 to be ejected towards an area to be treated. 8 are located on the side where the extinguishing agent 6 accumulates, that is to say generally towards the bottom of the bottle 4.
  • each outlet orifice 8 is closed by a closure device 14 in order to keep the extinguishing agent in the bottle 4 until its action is solicited.
  • the closure device 14 may for example be a tared cover, that is to say a membrane, which breaks or opens as soon as the pressure inside the the bottle 4 reaches a certain threshold.
  • the closure device 14 may also be a valve, advantageously controlled remotely, either by manual control, or by a control mechanism coupled for example to the means of putting the bottle 4 under pressure.
  • Other closure devices 14 are known for example from WO 93/25950 or US-A-4,877,051 , and commercially available.
  • the extinguishing device 1 comprises means for generating a pressurized gas 16 coupled to means 18 for regulating the pressure in the bottle 4.
  • the means 16 for generating a gas under pressure are connected to the agent bottle extinguisher 4 via a conduit 20 and an opening 22 on the bottle 4.
  • the opening 22 of the communication means 20 between the extinguishing agent tank 4 and the means for generating a gas under pressure 16 is located opposite the outlet port 8.
  • the means 16 for generating a gas under pressure can, in one embodiment of the invention illustrated in FIG. 2, consist of a pressurized gas tank.
  • a valve or valve, located on the conduit 20.
  • the valve may be predefined so as to ensure a flow of gas in the conduit 20 such that the pressure inside the bottle 4 follows a predetermined profile. For example, it can see its opening diameter depend directly on the pressure in the bottle 4.
  • the pressure in the bottle 4 depends directly on its gas content under pressure: knowing the dimensions of the bottle 4 and that the instantaneous flow rate of gas ejection coupled with the extinguishing agent through the outlet orifice 8, it is easy to model the pressure law prevailing inside the bottle 4 as a function of the flow of incoming gas.
  • the valve 18 is connected to a control device 24 which makes it possible to modify the parameters, either manually or as a function of measured commands (see below), of opening and / or closing of the valve 18 by means of a control line 26. It is also possible to control the discharge of the extinguishing agent according to the measurement of its concentration in the fire zone 12. In this case, one can have a simultaneous control of the organs 18 and 24.
  • the control line 26 can also be used "in the other direction" in order to use the flow parameters in the communication conduit 20 and / or the pressure parameters in the bottle 4 to control other functions of the device.
  • the control system 24, in response to a signal from the valve 18, can control, by the control line 28, the opening of the valve 14 located on the distribution line 10, so that to delay it until a minimum pressure is reached in the bottle 4, or to control the opening parameters to adapt to this pressure and thus ensure a constant concentration of extinguishing agent 6 on the fire zone 12.
  • Another possibility of carrying out the regulation according to the invention is to operate a regulation control directly on the means 16 to generate a gas under pressure.
  • valve 18 located on the communication conduit 20 can be simplified to have only two positions, namely opening and closing.
  • FIG. 3 Another embodiment relates to the presence of several pressurized gas tanks as means for generating a gas under pressure in the bottle of extinguishing agent 4: see FIG. 3.
  • each tank 161, 162 it is possible for each tank 161, 162 to be put in in communication with the bottle 4 by its own conduit 201, 202 provided with its regulation valve 181, 182.
  • FIG. 4 Another embodiment thus relates to a gas generator 32 with a pyrotechnic cartridge.
  • the generator is outside the bottle 4; he is consisting of an enclosure 34 provided with an ignition device 36, and containing a cartridge 38 of a pyrotechnic material such as propellant.
  • the gases generated by the combustion of the pyrotechnic material 38 are directed towards the bottle 4 via the outlet orifice 40 of the chamber 34.
  • the outlet orifice 40 is provided with a nozzle 42 , if possible so that the speed of sound is reached at the minimum section of the nozzle 42, which isolates the gas generator 32 of the bottle 4 and therefore does not disturb the combustion of the pyrotechnic material 38 (In the absence of a nozzle, the pressure is identical in the bottle 4 and the generator 32).
  • the pressure regulating means are then directly integrated into the generator pressure gas 32, and a simple control on the ignition device 36, for example by a system similar to that described in Figure 2, to control the pressure inside the bottle, and thus output 8 fire extinguisher 1; thus the agent concentration on the fire zone 12 can follow the predetermined profile.
  • the flow control Q then causes a control of the pressure in the bottle 4 over time and flow.
  • FIG. 5 is given an exemplary embodiment of a concentration curve of extinguishing agent at the exit of fire extinguisher 1 according to FIG. invention.
  • Curve 44 represents the concentration of extinguishing agent at a point of a fire zone 12 according to the prior art while curve 46 represents the concentration of extinguishing agent at the same point of a fire zone with a device in accordance with FIG.
  • the limit 48 corresponds to the criteria of the regulations in force in aeronautics. As can be seen in this figure, it is possible to manage the pressure in the bottle so as to have a constant concentration for a defined period of time or to have an evolutionary concentration as needed on the fire zone considered.
  • the device according to the invention makes it possible to create square concentration slots (or others if necessary), which makes it possible to improve the extinguishing capacity by increasing the time of simultaneity above the concentration threshold of extinguishing agent required to extinguish and / or reduce the mass of agent to be shipped for the same extinction efficiency expected.
  • the predetermined pressure profile obtained by the regulation according to the invention may be such that the pressure is almost constant in the tank for a period of time usually greater than 2 s, that is to say that the pressure does not vary more than 10%, preferably less than 5%, or even less than 2% of a nominal value.
  • the pressure can follow, for this landing, a linear profile, or be in the form of a "flattened" Gaussian.
  • the duration of the general regulation profile may be greater than this level, for example of the order of 6 s.
  • this level for example of the order of 6 s.
  • the extinguishing agent 6 is considered to have characteristics close to those of the halon.
  • its saturation vapor pressure is such that, because of the pressurization, it is in the liquid state and supposed incompressible in the bottle 4 and in the supply pipe 10 to the level of the ejection nozzle . Downstream, it is sprayed and vaporized in the fire zone 12.
  • a first phase (so-called "booster" phase) during which the duration to reach an agent concentration in the fire zone 12 concerned greater than or equal to that allowing extinction is fixed.
  • the surfaces (4440 and 406 mm 2 ) can be obtained in several ways, with blocks burning on one side ("cigarette"), on several sides, each side can be partially inhibited, ...
  • the shape to give to the block depends on the manufacturing conditions, the surface evolution, but also the ignition mode (on one side or on a surface for example). It is possible to optimize the evolution of the combustion surface over time to obtain a flow rate as desired.
  • FIG. 6A An exemplary embodiment of block 60 is illustrated in FIG. 6A.
  • the combustion surface for the booster phase is a circular face 62 of radius R; for the "sustainer" phase, the desired flow rate being much lower, the combustion surface is limited to a ring 64 of outer radius R and thickness E.
  • the large combustion surface of the propellant block 60 rapidly leads to a generation of gas sufficient to raise the pressure in the bottle to 50 bars.
  • the volume of extinguishing agent exiting the bottle (after rupture of the lid), is just balanced by the incoming volume of gas generated by the combustion of the block, and there is therefore stabilization of the pressure at 50 ° C. bars and agent flow that remains as constant.
  • This rate of extinguishing agent causes the rapid increase concentration C in extinguishing agent in the fire zone, until reaching the desired maximum, ie 7%.
  • the evolution of the combustion of the block 60 is such that the combustion surface is reduced to the annular surface 64.
  • the flow of gas is no longer sufficient to maintain a pressure of 50 bar in the bottle, and a A new equilibrium regime is established between the volume of incoming gas and the volume of outgoing agent, at the pressure of about 5 bar.
  • the agent flow rate is such that the agent concentration in the fire zone remains constant (or almost constant) at the level reached at the end of the first phase, ie 7%.
  • more than two phases may be desired.
  • a booster phase similar to the previous one is desired.
  • FIG. 7A A potential form of propellant block 70 for operation as specified is given in Figure 7A, the cigarette burning block from left to right, except for the inhibited surfaces 72; the concentration profile thus obtained with the use of such a block is illustrated in FIG. 7B.
  • the control means 24 can be used by the control means 24 to regulate more finely the pressure inside the bottle and / or the opening of the ejection valve 14.
  • a signal 52 from a fire detector may be used as a trigger for the opening of the communication means 20 between the pressurized tank 16 and the extinguisher bottle, or as a trigger of an ignition mechanism 36 in the case of a gas generator 32. It may be preferable to provide a device 54 for neutralizing the control means 24. It may also be useful to provide a manual trigger device 56 on the control box 24 and / or the means for regulating the pressure 18.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Fire Alarms (AREA)
  • Fire-Extinguishing Compositions (AREA)

Claims (22)

  1. Löschvorrichtung (1), mit:
    einem Löschbehälter (4) mit einem Löschmittel (6),
    Mitteln (16,32) zum Erzeugen eines Gases unter Druck,
    Verbindungsmitteln (20,40) zum Verbinden des Behälters (4) mit den Mitteln zum Erzeugen des Gases (16,32) derart, dass das von den Mitteln zur Erzeugung eines Gases unter Druck erzeugte Gas in den Löschbehälter (4) eindringen kann,
    gekennzeichnet durch Regelungsmittel (18,36,38) des Drucks in dem Löschbehälter (4), wobei der Druck durch das erzeugte Gas geschaffen wird, und die Regelungsmittel in dem Behälter (4) einen Druck aufrechterhalten können, der während einer bestimmten ersten Zeitdauer um mindestens 10% von einem Nennwert abweicht.
  2. Vorrichtung nach Anspruch 1, wobei der Druck in dem Löschbehälter (4) bei nicht vorhandenem erzeugten Gas der Umgebungsdruck ist.
  3. Vorrichtung nach Anspruch 2, wobei das Löschmittel in flüssiger Form vorliegt.
  4. Vorrichtung nach einem der Ansprüche 1 bis 3, wobei die Regelungsmittel (16,18,36,38) einen Druck aufrechterhalten können, der während mindestens 2s um mindestens fünf Prozent von einem Nennwert im Innern des Behälters (4) abweicht.
  5. Vorrichtung nach einem der Ansprüche 1 bis 4, wobei die Regelungsmittel (16,18,36,38) außerdem während einer zweiten Zeitdauer den Druck in dem Behälter (4) gemäß einem vorbestimmten Profil aufrechterhalten können.
  6. Vorrichtung nach einem vorangehenden Ansprüche, wobei die Mittel zum Erzeugen eines Gases unter Druck mindestens einen Gas-Druckbehälter (16) aufweisen, und die Mittel zum Regeln des Drucks ein Durchsatzregelungsventil (18) zwischen dem Gas-Druckbehälter (16) und dem Löschmittelbehälter (4) umfassen.
  7. Vorrichtung nach Anspruch 6, mehrere Gas-Druckbehälter (161-165) umfassend.
  8. Vorrichtung nach Anspruch 7, mit mehreren Durchsatzregelungsventilen (181,182,186) zwischen dem Löschmittelbehälter (4) und mindestens einem Gas-Druckbehälter (161-165).
  9. Vorrichtung nach einem der Ansprüche 1 bis 5, wobei die Mittel zum Erzeugen eines Gases unter Druck eine Gaserzeugungseinrichtung (32), die ein Gehäuse (34) aufweist, das mit einer Gasauslassöffnung (40) in Verbindung mit den Verbindungsmitteln versehen ist, sowie eine Kartusche (38) mit einem Block aus pyrotechnischem Material zur Erzeugung von Treibgas umfassen.
  10. Vorrichtung nach Anspruch 9, wobei die Mittel zum Regeln des Drucks einen Auslöser (36) sowie die folgenden Parameter umfassen: Abschaltdruck (P) in dem Gehäuse (34), Größe (At) der Öffnung (40) und Oberfläche (Sc) des pyrotechnischen Materialblocks des Gaserzeugers, die so ausgewählt sind, dass der Verlauf des Durchsatzes des aus der Verbrennung des pyrotechnischen Materialblocks (38) am Ausgang des Gehäuses (40) entstehenden Gases (Q) einem vorbestimmten Profil folgt und gemäß der Formel Q = P ⁢ A t C et = ρ ⁢ S c ⁢ V c = aρ ⁢ S c ⁢ P n
    Figure imgb0014
     geregelt wird, wobei a, n und 1/Cet Koeffizienten sind, die von der Zusammensetzung des pyrotechnischen Materials abhängen.
  11. Vorrichtung nach Anspruch 10, wobei die Parameter (P,At,Sc) so gewählt sind, dass der Abschaltdruck (P) in dem Gehäuse (34) der Gaserzeugungseinrichtung (32) mehr als das Doppelte des Drucks beträgt, der von dem Durchsatz von Gas (Q) in dem Löschbehälter (4) im Zeitverlauf erzeugt wird.
  12. Vorrichtung nach einem der Ansprüche 9 bis 11, wobei die Verbindungsmittel ein Rohr (42) an der Ausgangsöffnung (40) des Gehäuses (34) aufweisen.
  13. Vorrichtung nach Anspruch 12, wobei das Rohr (42) in der Form derart ausgebildet ist, dass an dem Querschnittsminimum des Rohrs (42) die von der Verbrennung des pyrotechnischen Materials erzeugten Gase eine Geschwindigkeit gleich der Schallgeschwindigkeit aufweisen.
  14. Vorrichtung nach einem der Ansprüche 9 bis 13, wobei das Gehäuse (34) der Gaserzeugungseinrichtung (32) sich außerhalb des Löschbehälters (4) befindet.
  15. Vorrichtung nach einem der Ansprüche 1 bis 14, außerdem Steuermittel (24) umfassend, die die Regelungsmittel (18,36) in Abhängigkeit von Steuerparametern steuern können.
  16. Vorrichtung nach Anspruch 15, wobei die Steuermittel (24) Mittel zum Messen der Konzentration des Löschmittels in der zu behandelnden Zone aufweisen, und die Konzentration (50) einer der Steuerparameter ist.
  17. Vorrichtung nach einem der Ansprüche 15 bis 16, wobei die Steuermittel (24) Mittel zum Erfassen eines Feuers aufweisen, und die Erfassung (52) einer der Steuerparameter ist.
  18. Vorrichtung nach einem der Ansprüche 15 bis 17, wobei die Steuermittel (24) Mittel zum manuellen Auslösen aufweisen, und die manuelle Auslösung (56) einer der Steuerparameter ist.
  19. Vorrichtung nach einem der Ansprüche 15 bis 18, wobei die Steuermittel (24) Neutralisierungsmittel (54) umfassen.
  20. Vorrichtung nach einem der Ansprüche 15 bis 19, außerdem Verteilungsmittel (10) des Löschmittels umfassend, die von den Steuermitteln (24) gesteuert werden.
  21. Vorrichtung nach einem der Ansprüche 1 bis 19, außerdem Verteilungsmittel (10) des Löschmittels umfassend.
  22. Vorrichtung nach Anspruch 21, wobei die Verteilungsmittel (10) einen dichten Deckel (8) umfassen.
EP05100058A 2004-01-09 2005-01-06 Feuerlöschvorrichtung Active EP1552859B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0450058A FR2864905B1 (fr) 2004-01-09 2004-01-09 Dispositif d'extinction de feu
FR0450058 2004-01-09

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EP1552859A1 EP1552859A1 (de) 2005-07-13
EP1552859B1 true EP1552859B1 (de) 2007-12-05

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US (1) US8020628B2 (de)
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AT (1) ATE380056T1 (de)
CA (1) CA2492133C (de)
DE (1) DE602005003593T2 (de)
FR (1) FR2864905B1 (de)
RU (1) RU2376049C2 (de)

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CA2492133A1 (fr) 2005-07-09
DE602005003593T2 (de) 2008-10-30
US8020628B2 (en) 2011-09-20
RU2004138755A (ru) 2006-06-20
RU2376049C2 (ru) 2009-12-20
CA2492133C (fr) 2012-10-30
EP1552859A1 (de) 2005-07-13
FR2864905B1 (fr) 2006-07-14
ATE380056T1 (de) 2007-12-15
FR2864905A1 (fr) 2005-07-15
DE602005003593D1 (de) 2008-01-17
US20050150663A1 (en) 2005-07-14

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