EP1585933B1 - Verfahren zur montage einer pyrotechnischen trennvorrichtung und so erhaltene pyrotechnische trennvorrichtung - Google Patents

Verfahren zur montage einer pyrotechnischen trennvorrichtung und so erhaltene pyrotechnische trennvorrichtung Download PDF

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Publication number
EP1585933B1
EP1585933B1 EP04705109A EP04705109A EP1585933B1 EP 1585933 B1 EP1585933 B1 EP 1585933B1 EP 04705109 A EP04705109 A EP 04705109A EP 04705109 A EP04705109 A EP 04705109A EP 1585933 B1 EP1585933 B1 EP 1585933B1
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EP
European Patent Office
Prior art keywords
envelope
end cap
tube
filled tube
assembly
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.)
Expired - Lifetime
Application number
EP04705109A
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English (en)
French (fr)
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EP1585933A1 (de
Inventor
Pierre Morlighem
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EADS Space Transportation SA
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EADS Space Transportation SA
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Publication of EP1585933A1 publication Critical patent/EP1585933A1/de
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Publication of EP1585933B1 publication Critical patent/EP1585933B1/de
Anticipated expiration legal-status Critical
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B15/00—Self-propelled projectiles or missiles, e.g. rockets; Guided missiles
    • F42B15/36—Means for interconnecting rocket-motor and body section; Multi-stage connectors; Disconnecting means
    • F42B15/38—Ring-shaped explosive elements for the separation of rocket parts

Definitions

  • the present invention relates to the field of pyrotechnic separation, in particular to the separation of two elements of aeronautical or spacecraft, such as for example the cap or protective panels of measuring devices of a rocket and the body of the rocket.
  • the document WO 87/0706 describes a pyrotechnic separation device which comprises at least one charged tube formed of an envelope containing along its entire length a detonating cord.
  • the loaded tube is disposed between two machine elements which must be separated from each other, along a cutting zone between the two machine elements.
  • the envelope is made of a deformable metal material, and has in a first operating configuration a flattened cross section, for example oblong or oval. It is filled with a flexible material in which is placed the detonating cord.
  • the separation device is held in place within a housing traversing the cutting zone.
  • the wall of this housing has spread over its entire length, areas of weakness, which are areas where said wall is thinned.
  • WO-87/07006 does not provide an indication of the ends of the pyrotechnic separation device.
  • the separation device 110 comprises at each of its ends an initiation tip 120, which is connected on the one hand to one end of a charged tube 112 and on the other hand to a bead 180, itself connected to a firing device (not shown in Figure 5), through which is initiated the setting fire of the detonating cord, and which is distant from the separation device.
  • the separation device 110 is received in a housing 106 which is continuous over the entire length corresponding to the loaded tube 112, and which has a discontinuity corresponding to the location of the initiation tip 120 associated with said end of the separation device. 110. This discontinuity results in an opening 108 made in the wall 109 of at least one of the two machine elements which must be separated.
  • a major drawback of this configuration lies in the fact that, in the cutting zone, the edge of this opening 108 is a stress concentration zone. The stresses are all the greater the greater the length of this edge in the cutting plane, or in a plane substantially parallel to the cutting plane. It is recalled that the cutting plane is defined as being a median plane of the cutting zone between the two gear elements which must be separated.
  • the two ends of the charged tube 112 are fired in order to prevent the occurrence of a firing failure which would occur at one of these ends, which requires the presence of two initiation tips 120 and two connections with a firing cord 180.
  • the positioning of the separation device 110 in the housing 106 is such that the two end caps 120 are in close proximity to one another, which requires an opening 108 having a greater length in the cutting plane.
  • the initiation tip 120 of the prior art is a substantially rectilinear tube segment, which comprises at one end an assembly orifice 126 for its assembly with the envelope, and at the other end a firing port 124 for its connection with the firing cord 180.
  • the shape of the initiation nozzle 120 is conditioned by the manufacturing process which has just been recalled. For reasons of convenience, the introduction orifice is coincident with the firing orifice 124.
  • the firing port 124 and the assembly port 126 of the initiation tip 120 are aligned with each other in the longitudinal direction thereof, so that the flexible sheath containing the detonating cord can be introduced and slid into the initiation tip 120 and into the envelope, according to the longitudinal direction common to the initiation tip 120 and the envelope.
  • the firing orifice 124 thus serves both to connect the firing cord to the initiation tip 120, and to introduce the flexible sheath containing the detonating cord.
  • This introduction function requires that the initiation tip has a certain length, designated D in Figure 5, to guide the flexible sheath.
  • initiation tip and the firing cord are made on a connecting portion, designated 140 in FIG. 5, which occupies a certain length D1, in the longitudinal direction of the end piece. initiation, which increases all the length L, in the cutting plane, the opening 108 formed in said wall 109 of at least one of the two machine elements to be separated.
  • the deformation operation of the tube is done after its assembly with the initiation tip, because otherwise it would not be possible, or in any case very difficult, to introduce the flexible sheath containing the detonating cord in an already flattened envelope .
  • the loaded tube has a transient portion, designated 150 in FIG. 5, along which its section passes gradually of a substantially circular shape, close to the endpiece. initiation, to a substantially flattened shape, where it has been deformed.
  • This transient portion 150 occupies a certain length D2, which increases by the same length L, in the cutting plane, the opening 108 formed in said wall 109 of at least one of the two machine elements.
  • An object of the present invention is to obtain a pyrotechnic separation device which retains the main advantage of the separation device of the prior art, namely to allow a clean separation of the elements, that is to say that the residues explosive material remains inside the tube. Indeed, one of the two pieces of gear to be separated is very often a compartment in which are sophisticated electronic equipment, fragile and expensive, which should not be polluted during the separation of the elements.
  • Another object of the present invention is to minimize the constraints on the edges of the openings in the wall of at least one of the machine elements to be separated. For this, it is necessary to reduce the length of these openings in the cutting plane.
  • these three lengths D, D1, D2 are related to the method of manufacturing the pyrotechnic separation device of the prior art, which consists in assembling a rectilinear initiation tip on an empty envelope, then loading said envelope with the sheath of flexible material containing the detonating cord by an end orifice of the initiation tip, and then deforming the resulting tube, once that he has been charged and connected.
  • one solution consists in pre-loading a casing having a substantially circular cross section with the flexible sheath containing the detonating cord, and then deforming the loaded tube to give its cross section a flattened shape on its entire length, and finally to assemble the initiation tip on one end of said loaded tube, by the assembly port of the initiation tip. Therefore, the firing port of the initiation tip is only used to connect it with the firing cord, and is no longer used to introduce the flexible sheath containing the detonating cord.
  • the transient portion is removed, since the deformation of the loaded tube is along its entire length.
  • the length D2 can thus be deleted.
  • the length D1 can thus be deleted.
  • the initiation tip can be shortened, and its length D decreased, since it no longer has the role of guiding the flexible sheath containing the detonating cord for its introduction into the envelope.
  • the removal of the transient portion also has the advantage of reducing the manufacturing costs of the separation device.
  • Another object of the present invention is to ensure that the assembly between the loaded tube and the initiation tip ensures good sealing conditions to preserve the detonating cord of moisture from the ambient air.
  • the present invention therefore proposes a method of assembling a pyrotechnic separation device by which at least one initiation tip is directly connected to one end of a tube. previously loaded and deformed, said initiation tip having a reduced longitudinal dimension relative to the initiation tips of the prior art, and said assembly method ensuring the tightness of the assembly. It also proposes a pyrotechnic separation device obtained by this method.
  • the method comprises a prior step during which the loaded tube has been deformed to give its cross-section a flattened shape along its entire length.
  • said flattened cross section has an oblong or oval or elliptical shape.
  • the method comprises an initial step during which a casing having a cross section of substantially circular shape with a flexible material and a detonating cord, said flexible material forming a sheath for said detonating cord.
  • the separation device comprises more than one initiation nozzle, the succession of the above-mentioned steps is repeated for each assembly of an initiation tip with a tube end previously loaded and deformed.
  • said weld bead is made between a thinned peripheral zone of an assembly wall surrounding an assembly opening of the initiation tip and the envelope. Said weld points pass through the thinned peripheral zone of the assembly wall and penetrate into the envelope without passing through it.
  • this spot welding is performed by means of a pulsed YAG laser laser welding apparatus. Its operating parameters are adjusted in such a way that the temperature rise at the level of the detonating cord is perfectly controlled.
  • the pyrotechnic separation device comprises at least one tube loaded with a detonating cord and at least one initiation tip assembled on said charged tube by the implementation of a compliant assembly method. in the first aspect of the invention.
  • the initiation tip is provided with an assembly orifice delimited by an assembly wall which comprises a thinned peripheral zone.
  • the initiation tip has a bent shape, forming for example substantially a right angle.
  • FIG. 1 a first gear element 2 and a second gear element 4 intended to be separated are placed side by side along a cutting zone.
  • Figure 1 illustrates only a part of the two elements 2, 4, each having an overall shape of substantially circular ring.
  • This cutting zone is traversed by a peripheral housing 6 which comprises, in the illustrated example, a wall 62 belonging to the gear element 2 and a wall 64 belonging to the gear element 4.
  • Said peripheral housing 6 receives pyrotechnic separation devices 10. These are, in this example, two in number and arranged end to end. They each comprise a loaded tube 12 and two initiation tips 20. Due to the substantially circular configuration of the cutting zone of the present example, it has two substantially diametrically opposed locations, in which there are two initiation tips Each belonging to one of the separating devices 10. At these two locations, the gear element 4 has openings 8 for accommodating the initiation tips 10 and firing cords 80 (shown in FIG. by discontinuous lines in Figure 1) which connect the initiation tips 20 to a firing device (not shown), which is remote from the cutting area.
  • FIG. 2 illustrates, in longitudinal section, an end of a pyrotechnic separation device 10, which comprises a charged tube 12 and an initiation tip 20.
  • the loaded tube 12 comprises a metal casing 13, preferably of stainless steel. It is equipped throughout its length with a detonating cord 14 constituting a core of said charged tube 12, and a flexible sheath 16 which fills the space between the envelope 13 and the detonating cord 14.
  • the charged tube 12a was obtained by introducing into the casing 13 a flexible material containing the detonating cord 14, said flexible material forming a sheath 16 for said detonating cord 14.
  • Said flexible sheath 16 is made of a damping material, such as silicone.
  • the loaded tube 12 has been previously deformed over its entire length. It has a cross section of flattened shape, for example oblong, oval or elliptical. Firing the detonating cord will cause radial expansion of the charged tube 12 which will tend to assume a configuration in which it will have a substantially circular cross section.
  • the tip body 22 preferably has a bent shape.
  • the firing orifice 24 and the assembly orifice 26 have axes that intersect by forming, in the example shown, an angle substantially equal to 90 °.
  • the assembly orifice 26 has a cross section whose shape and dimensions are adapted to those of the cross section of the end of the loaded tube 12. It is delimited by an assembly wall 28 which is part of the body of the 22.
  • the assembly wall 28 has a thinned peripheral zone 30 and ends with a reinforcing ring 32.
  • the thinned peripheral zone 30 is shown on a larger scale in FIG. 3, which illustrates the actual assembly of the initiation tip 20 on the loaded tube 12.
  • the method of assembling the separation device 10 comprises a step of nesting the end of the loaded tube 12 in the assembly hole 26, and a step of joining by welding the thinned peripheral zone 30 on the envelope flattened 13.
  • This deformation is performed on the entire length of the loaded tube 12, and tends to flatten its cross section, to give it an oblong shape, or oval, or elliptical, or other flattened shape.
  • the welding is a fusion welding of metal, which is carried out by means of a pulsed YAG laser laser welding machine, whose operating parameters are regulated, so that the temperature generated at the detonating cord does not exceed not a maximum value T M.
  • this maximum value T M is set at 100 ° C.
  • the main operating parameters are the welding speed, the welding energy, the duration of the pulses, the frequency of the pulses of the laser beam, the focal length of the objective, and the firing distance.
  • a vacuum-refined stainless steel has the advantage, compared to a stainless steel that would not be refined under vacuum, a lower sensitivity to cracking that occurs sometimes during a laser welding, because of the fast solidification of the melted zones.
  • the welding step consists in producing successive soldering points 40 on the thinned peripheral zone 30, by overlapping the welding points 40 along the periphery of the thinned peripheral zone 30, so as to form one or more peripheral and continuous welding seam 42.
  • the weld points 40 of the same weld bead 42 are evenly distributed over the entire circumference of the thinned peripheral zone 30, so that said weld bead 42 is closed.
  • soldering points 40 pass through the thinned peripheral zone 30 of the assembly wall 28 and penetrate into the envelope 13 without passing through it.
  • the assembly of the initiation tip 20 on the end of the loaded tube 12 is obtained as soon as a peripheral and continuous weld bead 42 has been produced.
  • a peripheral and continuous weld bead 42 is produced.
  • the number of weld beads 42 is limited by the width of the thinned peripheral zone 30. It is preferably between two and six, and even more preferably equal to four. Said width of the thinned peripheral zone is denoted a.
  • the weld beads 42 are spaced from each other in the width direction a of the thinned peripheral zone 30. According to another preferred variant, illustrated in FIG. 3, the weld beads 42 are joined along the direction of the width a of the thinned peripheral zone 30.
  • the height of the thinned peripheral zone is denoted h1
  • the axial distance between two adjacent weld seams 42 is denoted c
  • the distance between each end weld seam 42 and each edge of the thinned peripheral zone 30 is denoted b
  • the total welding width is noted 1.
  • FIG 4 is illustrated in section and enlarged a weld spot 40. It comprises a base portion 44 which opens out to the surface of the thinned peripheral zone 30, and a foot portion 46 which enters the envelope 13.
  • the base 44 has a substantially domed shape and the foot 46 has substantially a cylindrical shape or a frustoconical shape tapering away from the base 44.
  • the end of the foot 46 penetrating the envelope 13 ends with a substantially rounded tip 47.
  • the surface of the base 44 which opens to the outside has a hollow 45.
  • the junction between the base 44 and the foot 46 substantially has a funnel-shaped profile.
  • the base 44 has a diameter d1 and its recess 45 has a height e.
  • the foot 46 has a diameter d2.
  • the foot 46 When the foot 46 has a substantially frustoconical shape, its diameter d2 is axially variable. D2p denotes the diameter d2 at the plane of the joint between the thinned peripheral zone 30 and the envelope 13.
  • the weld point 40 has a total height h2 which is the sum of a through height h1 equal to the height of the thinned peripheral zone 30 crossed by the points of welding 40 and a penetrating height h3 which corresponds to the penetration height of the weld points 40 in the envelope 13.
  • a cylindrical casing 13 made of Z2 CN 18-10 type stainless steel was also used, which had been hypertreated and not refined under vacuum.
  • the casing 13 was loaded with a silicone sheath 13 containing a detonating cord 14.
  • the loaded tube thus formed was crushed to have an oblong cross section, with two straight portions and two rounded portions.
  • a pulsed YAG laser welding method was used, with a microwelding center known as LASAG PM 300.
  • Gaseous protection was applied by means of a flow of nitrogen having a flow rate of 10 liters / minute.
  • the temperature generated at the detonation cord remained below 80 ° C.
  • Seams 40 overlapping in the circumferential direction were made to form four peripheral, continuous, and closed weld seams.
  • the welding beads 42 were joined.
  • An initiation tip 20 was used whose length D in the longitudinal direction of the loaded tube was substantially between 30 and 35 millimeters, more precisely approximately equal to 32.7 millimeters, whereas according to the prior art a initiation tip having a firing and insertion port axially aligned with the assembly orifice, and having a length D of 58.4 mm.
  • the length L, in the cutting plane, of the opening made in the wall of the machine element has been reduced to 116 millimeters, whereas with a separation device of the prior art, it would have been necessary to practice an opening having a length L of 230 mm.

Claims (22)

  1. Verfahren zum Zusammenbauen einer pyrotechnischen Trennvorrichtung (10), das umfasst:
    - einen Schritt, in dem eine Rohrladung (12), die eine eine Zündschnur (14) enthaltende Hülle (13) aufweist, in einen Zündansatz (20) eingesetzt wird,
    - einen Schritt, in dem das bereits geladene Rohr (12) und der Zündansatz (20) durch Schweißen verbunden werden, dadurch gekennzeichnet, dass die Verbindung des Rohrs und des Ansatzes durch Schmelzschweißen erfolgt, indem aufeinander folgende Schweißpunkte (40), die gegenseitig überlappen, verwirklicht werden, derart, dass wenigstens ein ununterbrochener und geschlossener Umfangsschweißwulst (42) gebildet wird.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass es einen vorherigen Schritt umfasst, in dem die Rohrladung verformt wird.
  3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass die Rohrladung (12) verformt wird, um ihrem Querschnitt auf der gesamten Länge eine abgeflachte Form zu verleihen.
  4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Rohrladung (12) einen Querschnitt aufweist, der eine längliche oder ovale oder elliptische Form hat.
  5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass es einen anfänglichen Schritt umfasst, in dem die Hülle mit einem nachgiebigen Werkstoff gefüllt wird, der die Zündschnur enthält, so dass die Rohrladung gebildet wird.
  6. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Schweißwulst (42) zwischen der Hülle (13) und einer verjüngten Umfangszone (30) einer Montagewand (28), die eine Montageöffnung (26) des Zündansatzes (20) umgibt, verwirklicht ist.
  7. Verfahren nach Anspruch 6, dadurch gekennzeichnet, dass die Schweißpunkte (40) durch die verjüngte Umfangszone (30) der Montagewand (28) verlaufen und in die Hülle (13) eindringen.
  8. Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass im Wesentlichen parallele Schweißwulste (42) verwirklicht werden, deren Anzahl im Bereich von zwei bis sechs liegt.
  9. Verfahren nach Anspruch 8, dadurch gekennzeichnet, dass vier Schweißwulste (42) verwirklicht werden.
  10. Verfahren nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass diese Schweißwulste (42) dann, wenn mehr als ein Schweißwulst (42) verwirklicht wird, voneinander beabstandet sind.
  11. Verfahren nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass diese Schweißwulste dann, wenn mehr als ein Schweißwulst (42) verwirklicht werden, aneinandergrenzen.
  12. Verfahren nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass das Schweißen mittels eines gepulsten YAG-Lasers verwirklicht wird, dessen Betriebsparameter in der Weise geregelt werden, dass die auf Höhe der Zündschnur erzeugte Temperatur einen vorgegebenen maximalen Temperaturwert (TM) nicht übersteigt.
  13. Verfahren nach Anspruch 12, dadurch gekennzeichnet, dass der Wert der Maximaltemperatur (TM) auf 100 °C festgelegt ist.
  14. Pyrotechnische Trennvorrichtung (10), die einen Zündansatz (20) und eine Rohrladung (12) mit einer Zündschnur (14) umfasst, dadurch gekennzeichnet, dass der Zündansatz (20) an der Rohrladung (12) durch Ausführen eines Montageverfahrens nach einem der Ansprüche 1 bis 13 angebracht wird.
  15. Vorrichtung (10) nach Anspruch 14, dadurch gekennzeichnet, dass die Rohrladung aus einer Hülle (13) gebildet ist, in die eine elastische Abschirmung (16) eingeführt ist, die die Zündschnur (14) enthält.
  16. Vorrichtung (10) nach Anspruch 14 oder 15, dadurch gekennzeichnet, dass die Rohrladung (12) einen Querschnitt aufweist, der eine abgeflachte Form besitzt.
  17. Vorrichtung (10) nach einem der Ansprüche 14 bis 16, dadurch gekennzeichnet, dass die Rohrladung (12) einen Querschnitt aufweist, der eine längliche oder ovale oder elliptische Form hat.
  18. Vorrichtung (10) nach einem der Ansprüche 14 bis 17, dadurch gekennzeichnet, dass sowohl die Hülle (13) als auch der Zündansatz (20) aus rostfreiem Stahl verwirklicht sind.
  19. Vorrichtung (10) nach einem der Ansprüche 14 bis 18, dadurch gekennzeichnet, dass die Hülle (13) aus überhärtetem rostfreiem Stahl des Typs Z2 CN 18-10 verwirklicht ist.
  20. Vorrichtung (10) nach einem der Ansprüche 14 bis 19, dadurch gekennzeichnet, dass der Zündansatz (20) aus vakuumgefrischtem überhärtetem und im Vakuum gefrischtem rostfreiem Stahl des Typs EZ2 CN 18-10 verwirklicht ist.
  21. Vorrichtung (10) nach einem der Ansprüche 14 bis 20, dadurch gekennzeichnet, dass der Zündansatz (20) mit einer Montageöffnung (26) versehen ist, die von einer Montagewand (28) umgeben ist, die eine verjüngte Umfangszone (30) aufweist.
  22. Vorrichtung (10) nach einem der Ansprüche 14 bis 21, dadurch gekennzeichnet, dass der Zündansatz (20) eine gekrümmte Form aufweist.
EP04705109A 2003-01-24 2004-01-26 Verfahren zur montage einer pyrotechnischen trennvorrichtung und so erhaltene pyrotechnische trennvorrichtung Expired - Lifetime EP1585933B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0300778A FR2850454B1 (fr) 2003-01-24 2003-01-24 Procede d'assemblage d'un dispositif de separation pyrotechnique, et dispositif de separation pyrotechnique obtenu par ce procede
FR0300778 2003-01-24
PCT/FR2004/050032 WO2004068062A1 (fr) 2003-01-24 2004-01-26 Procede d'assemblage d'un dispositif de separation pyrotechnique, et dispositif de separation pyrotechnique obtenu par ce procede

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EP1585933A1 EP1585933A1 (de) 2005-10-19
EP1585933B1 true EP1585933B1 (de) 2006-07-26

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EP04705109A Expired - Lifetime EP1585933B1 (de) 2003-01-24 2004-01-26 Verfahren zur montage einer pyrotechnischen trennvorrichtung und so erhaltene pyrotechnische trennvorrichtung

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EP (1) EP1585933B1 (de)
ES (1) ES2268623T3 (de)
FR (1) FR2850454B1 (de)
WO (1) WO2004068062A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10940341B2 (en) 2013-03-06 2021-03-09 Airbus Canada Limited Partnership Interface between fire suppressant conduit and cargo compartment of an aircraft

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8141491B1 (en) * 2009-08-18 2012-03-27 Raytheon Company Expanding tube separation device
RU2475692C2 (ru) * 2011-03-03 2013-02-20 Федеральное государственное унитарное предприятие "Научно-производственное объединение им. С.А. Лавочкина" Пиромеханическая система отделения комбинированного типа
FR3009284B1 (fr) * 2013-08-01 2017-06-09 Astrium Sas Procede et dispositif de liaison et de separation de deux elements avec des moyens de liaison et de separation melanges

Family Cites Families (5)

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Publication number Priority date Publication date Assignee Title
US3698281A (en) * 1970-02-27 1972-10-17 Lockheed Aircraft Corp Explosive system
FR2598796B1 (fr) 1986-05-16 1990-04-20 Aerospatiale Dispositif de separation pyrotechnique de deux elements
US5390606A (en) * 1992-11-02 1995-02-21 Orbital Sciences Corporation Frangible joint separation system
US5898123A (en) * 1997-05-01 1999-04-27 The Ensign-Bickford Company Sealing device and a method for assembly thereof
US6021715A (en) * 1997-05-02 2000-02-08 The Ensign-Bickford Company Manifold for coupling with a tube and method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10940341B2 (en) 2013-03-06 2021-03-09 Airbus Canada Limited Partnership Interface between fire suppressant conduit and cargo compartment of an aircraft

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EP1585933A1 (de) 2005-10-19
ES2268623T3 (es) 2007-03-16
FR2850454A1 (fr) 2004-07-30
FR2850454B1 (fr) 2005-04-15
WO2004068062A1 (fr) 2004-08-12

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