EP2791616B1 - Munition, Ladung für eine solche Munition und Verfahren zur Herstellung einer solchen Munition - Google Patents

Munition, Ladung für eine solche Munition und Verfahren zur Herstellung einer solchen Munition Download PDF

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Publication number
EP2791616B1
EP2791616B1 EP12813928.4A EP12813928A EP2791616B1 EP 2791616 B1 EP2791616 B1 EP 2791616B1 EP 12813928 A EP12813928 A EP 12813928A EP 2791616 B1 EP2791616 B1 EP 2791616B1
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EP
European Patent Office
Prior art keywords
munition
pyrotechnic
charge
explosive charge
explosive
Prior art date
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Application number
EP12813928.4A
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English (en)
French (fr)
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EP2791616A1 (de
Inventor
Marie MARCHAIS
Olivier Bouchet
Bruno Nouguez
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.)
Eurenco SA
Eurenco France SA
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Eurenco SA
Eurenco France SA
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Publication of EP2791616A1 publication Critical patent/EP2791616A1/de
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B25/00—Fall bombs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00—Details of fuzes
    • F42C19/08—Primers; Detonators
    • F42C19/0807—Primers; Detonators characterised by the particular configuration of the transmission channels from the priming energy source to the charge to be ignited, e.g. multiple channels, nozzles, diaphragms or filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C99/00—Subject matter not provided for in other groups of this subclass

Definitions

  • the present invention relates to a munition, in particular a bomb and more particularly an aerial bomb, of the type comprising an elongate body housing an explosive charge and an inert charge, and a firing device.
  • the present invention also relates to a load adapted to such an ammunition and a method of manufacturing such an ammunition.
  • a munition of the aforementioned type is generally intended to be connected to a transport platform, including an aircraft.
  • the moment of inertia, the aerodynamics and the volumes of such an ammunition are dimensioned to answer a precise specifications.
  • Air weapons are now mainly used to accurately target ground targets such as bunkers, armored vehicles, etc.
  • This configuration does not reduce the collateral effects of the ammunition satisfactorily. It also requires coating the inner wall of the body of the munition with the inert material, before introducing the explosive charge. The manufacturing process of this munition is therefore complex and expensive.
  • the object of the present invention is to provide a new munition fulfilling these conditions.
  • the inert charge is interposed between the firing device and the said explosive charge, and which further comprises at least one pyrotechnic transmission unit provided with an extension pyrotechnic, said pyrotechnic transmission unit coupling the explosive charge to the firing device, to allow the detonation of said explosive charge under the action of the firing device.
  • the term "pyrotechnic transmission unit” is understood to mean any element capable of propagating a detonation initiated by the firing device to the explosive charge, even though the latter is positioned at a distance from said firing device.
  • pyrotechnic extension means any element adapted to transmit a detonation wave, initially resulting from the firing device, without modifying said detonation wave, and in particular its surface amplitude, its intensity (or its power), or its form.
  • a pyrotechnic extender is an elongated member, that is to say longer than wide, rigid or flexible, of substantially constant section.
  • the pyrotechnic extender comprises an explosive compound of homogeneous composition, identical or different from that of the explosive charge. More preferably, the pyrotechnic extender comprises a single explosive compound of homogeneous composition, especially monolithic. Even more preferably, the pyrotechnic transmission unit comprises a single explosive compound of homogeneous composition, preferably monolithic.
  • the pyrotechnic extender has a maximum radial dimension substantially less than the maximum diameter the ammunition, preferably at least 5 times smaller than this diameter, and even more preferably at least 20 times smaller than this diameter.
  • the purpose of the present invention is, as indicated above, to provide a munition that effectively reduces collateral effects, without modifying the architectural, mass and ballistic characteristics of known ammunition.
  • such an ammunition is obtained by reducing the volume of explosive charge contained in a munition of conventional configuration and positioning said explosive charge at the location of the most appropriate munition, in particular its front end, while retaining the firing device at the rear of the munition, the inert load being positioned between the explosive charge and the firing device.
  • the munition according to the invention has the same mass, the same center of gravity and the same moments of inertia as a standard ammunition, guaranteeing perfect interchangeability (possible connection to the same ports, compatibility with known kits and guidance logic, etc.).
  • the invention allows to "dose” at will, by construction, the power of the ammunition, for a standard size and interchangeable ammunition.
  • the pyrotechnic transmission unit will preferably have the smallest possible volume.
  • the pyrotechnic extender which forms the longest part of the pyrotechnic transmission unit has, in particular, a volume and therefore a radial dimension or the most limited width possible.
  • the pyrotechnic extender is longer than wide, and in particular at least 10 times longer than wide, preferably at least 20 times longer than wide.
  • the length of the pyrotechnic extender is at least equal to 1/2 times, preferably at least 2/3 times the total length of the munition.
  • the firing device is disposed at the end rear of the ammunition, and the explosive charge is disposed at its front end.
  • front end of the ammunition means that oriented in the direction of movement of said munition, and the rear end, its opposite end in the axial direction.
  • the blast effect and the fragments resulting from the detonation are directed in a privileged way forward, that is to say toward the target, and the collateral effects towards the rear of the ammunition are considerably reduced.
  • the pyrotechnic transmission unit further comprises a first ignition relay coupling said pyrotechnic extender to the explosive charge.
  • booster relay means any priming device adapted to transmit a detonation wave by modifying the surface amplitude and / or the intensity and / or the shape of this detonation. wave.
  • the priming relay may be used to increase the surface of the detonation wave transmitted to the explosive charge when the pyrotechnic extender has a diameter smaller than the critical diameter of the explosive charge (ie the diameter below which the detonation the charge can not take place).
  • the priming relay will then have a flared shape in the direction of the explosive charge, its maximum diameter being greater than the critical diameter of said load.
  • a priming relay is known from the Canadian patent application CA 2,066,139 .
  • This application describes an ammunition comprising a low-sensitivity explosive charge, requiring the interposition of a priming relay between said explosive charge and the firing device in order, firstly, that the diameter of the wave transmitted to the explosive charge is greater than the critical diameter for detonation of said charge, and, secondly, that the power of the detonation wave is sufficiently large.
  • the ignition relay is provided with an annular wave generator comprising a conical cap.
  • the ignition relay further comprises a bi-explosive generator of known type.
  • the pyrotechnic transmission unit comprises a first priming relay coupled to the explosive charge, a second firing relay coupled to the firing device, and a pyrotechnic extender coupling said firing relays.
  • the pyrotechnic transmission unit is at least partially embedded in the inert load.
  • the explosive charge, the inert charge and the firing device are located, in this order, one after the other inside the body of the ammunition, in the direction axial axis of this body, the explosive charge being closest to the front of the munition.
  • the interface between the explosive charge and the inert load extends substantially perpendicular to the axis of the body.
  • the explosive charge and the inert charge are therefore not superimposed in the radial direction.
  • the explosive charge extends substantially over a whole diameter of the body.
  • the coupling between the firing device and the explosive charge is achieved by means of the pyrotechnic transmission unit, which is coupled to each of them.
  • the couplings between the pyrotechnic transmission unit and the firing device or the explosive charge may or may not be remote.
  • the pyrotechnic transmission unit and the explosive charge are connected to one another.
  • the pyrotechnic transmission unit and the explosive charge can be connected to one another via an adhesive layer.
  • it may simply be against a surface of the explosive charge. It can still be partially embedded in it.
  • the pyrotechnic transmission unit is separated from the explosive charge by a layer of an inert material, in particular an inert material forming part of the inert filler.
  • the thickness of this layer must be dimensioned so that the detonation from the pyrotechnic transmission unit can propagate by influence to the explosive charge.
  • the layer of inert material is a thin layer, typically less than or equal to 30 mm.
  • the explosive charge and the explosive compound contained in the pyrotechnic transmission unit form a monolithic assembly of homogeneous composition.
  • the munition comprises at least two pyrotechnic transmission units spaced apart from each other. More generally, the multiplication of the pyrotechnic transmission units makes it possible to make reliable the transfer of the initial detonation of the firing device which may, by construction, not be perfectly axisymmetric.
  • the pyrotechnic transmission unit comprises a rigid or flexible tube, rectilinear or not, containing an explosive compound.
  • the pyrotechnic transmission unit may comprise a flexible detonating cord as described for example in the patent application. WO9104235 .
  • the pyrotechnic transmission unit may also comprise a tube comprising a granular explosive charge (of the RDX or HMX type) or a compressed explosive (of the hexocire type) or a cross-linked binder composite explosive (of the HMX or RDX / polyurethane binder type) .
  • the tube may be plastic or metal.
  • the pyrotechnic transmission unit comprises a rigid bead of any shape made of an explosive compound, said bead can be naked or covered with a linker.
  • a linker In particular, such a cord constitutes all or part of the pyrotechnic extender.
  • the section of the pyrotechnic transmission unit increases at its end connected to the explosive charge. It is for example flared towards its end, or it has a tubular end portion of increased section.
  • the present invention also relates to a load adapted to be integrated into an ammunition as defined above, comprising an explosive charge and an inert charge, and further comprising at least one pyrotechnic transmission unit provided with a pyrotechnic extender, said unit pyrotechnic transmission being adapted to transmit to said explosive charge a detonation initiated remotely, on the side of the inert charge opposite said explosive charge.
  • the pyrotechnic transmission unit and in particular said pyrotechnic extender, is at least partly embedded in the inert charge.
  • the load further comprises a sheath adapted to receive the firing device for initiating the detonation, the inert load being interposed between the explosive charge and said sheath.
  • the pyrotechnic transmission unit and in particular said pyrotechnic extender, is connected to the explosive charge and / or to said sheath by contact.
  • the pyrotechnic transmission unit is coupled to the explosive charge and / or to said sheath through a layer of inert material, in particular an inert material forming part of the inert filler.
  • the explosive charge is introduced inside the body in a non-solidified state, then it is solidified therein.
  • the explosive charge is introduced into the body in the form of a pasty explosive compound containing a crosslinkable binder and its crosslinking agent.
  • the pasty explosive compound solidifies by crosslinking said binder.
  • the explosive charge is introduced inside the body in the form of a molten explosive compound.
  • the explosive compound solidifies by lowering the temperature.
  • the explosive charge is introduced inside the body in the form of a monolithic block of suitable geometry.
  • the inert filler is introduced into the body in a non-solidified state, then it is solidified therein.
  • the inert filler is inserted inside the body in the form of a monolithic block of suitable geometry.
  • step b) the explosive charge is introduced into the body at first, the pyrotechnic transmission unit is introduced into the body and coupled with said explosive charge in a second time, and the inert charge is introduced into the body in a third time.
  • the inert charge is generally introduced into the body in a non-solidified state, so that it coats the pyrotechnic transmission unit, and in particular said pyrotechnic extender.
  • the pyrotechnic transmission unit is partially embedded in the explosive charge when it is still in the non-solidified state.
  • the pyrotechnic transmission unit is connected to the explosive charge by gluing. It can also be simply in contact with it, without being stuck.
  • step b) the explosive charge and the inert charge are introduced inside the body in a first step, then the pyrotechnic transmission unit is introduced into the body in a Secondly.
  • the inert filler is generally introduced into the body in the pasty state.
  • the pyrotechnic transmission unit is then immersed in the non-solidified mass of inert material until it is in the vicinity of or in contact with the explosive charge.
  • an empty tube is introduced and positioned inside of the body, so that its end reaches the volume provided for the explosive charge, is poured through said tube an explosive compound in the pasty state, to fill the volume provided for the explosive charge and the internal volume of the tube, solidifies the explosive compound, and then introduces the inert filler inside the body of the munition.
  • the tube is removed after solidification of the explosive.
  • the bar of explosive molded in the tube constitutes all or part of the pyrotechnic transmission unit, and said bar of explosive forms in particular the pyrotechnic extender.
  • the tube is kept inside the body after solidification, the tube filled with explosive compound constituting all or part of the pyrotechnic transmission unit, and said filled tube notably forms the pyrotechnic extender.
  • the explosive charge and the pyrotechnic transmission unit form a preformed assembly which is introduced inside the body.
  • the explosive charge and the explosive compound contained in the pyrotechnic transmission unit form a monolithic assembly of homogeneous composition.
  • the pyrotechnic transmission unit is held in position by wedging means.
  • a munition 10 according to a first embodiment of the present invention, comprising an elongate body 12 of axis AA 'formed of a first section 14 or ogival front section, tapering towards its front end 12a, and a second section 16 or rear section, slightly narrowed towards its rear end 12b.
  • the body 12 of ammunition could take any other elongated form.
  • the body 12 has, in the example, an opening 18 at its front end 12a, and an opening 19 at its rear end 12b.
  • the front of the ammunition corresponds to its side directed in the direction of movement (ie in the direction of the target), and that the rear of the ammunition corresponds to its opposite side in the direction of axis A-A '.
  • a firing device or detonator 20 is located in the vicinity of the rear end 12b of the body 12.
  • the firing device 20 is inserted inside a sheath receiving 21 provided at the rear end of the body 12 (hereinafter rear sheath).
  • the body 12 houses a functional element 22, in particular a ballistic control member such as a homing device for guiding the munition, a proximity detector for triggering the munition close to the target or a target. altimeter.
  • this functional element 22 is disposed inside a front receiving sheath 23, which closes the aforementioned opening 18.
  • the functional element 22 and the firing device 20 are fed by a supply member 34 (shown in FIG. figure 2 ), located generally outside the body 12 of the munition, by means of electrical conduits 31, 32.
  • the electrical conduits 31, 32 respectively extend from the functional element 22 and the switching device. fire 20 to a feed zone 30 located here in the vicinity of the middle of the body 12 in the axial direction A-A '.
  • the supply zone 30 has an opening 33 to the outside of the body 12 through which the electrical conduits 31, 32 are connected to the supply member 34.
  • the supply member 34 is for example a wind turbine, in particular a wind turbine mounted on the body 12 of the munition, outside thereof.
  • the munition further comprises two anchor wells 71, 72 formed in the body 12, and for its connection to a platform of carriage of the aircraft, the helicopter or the drone on which the ammunition is for example mounted.
  • the anchoring zones 71, 72 are located on either side of the feed zone 30, in the axial direction.
  • the wells 71, 72 are for example intended to receive rings for the suspension of the ammunition 10 to the transport platform.
  • An explosive charge 40 illustrated on figures 2 and 3 fills the front space of the ammunition 10 delimited by the inner wall of the body 12 and the front sheath 23, over a length L1 measured from the front end 12a of the ammunition 10.
  • the explosive charge 40 is not in direct contact with the firing device 20 which is, as described above, located at the rear end 12b of the body 12.
  • the length L1 represents a little more than a third of the total length L of the munition 10 (see FIG. figure 3 ).
  • the explosive charge 40 may consist of a composite, in particular based on aluminum (Al), hexogen (RDX) and a polyurethane binder.
  • Al aluminum
  • RDX hexogen
  • polyurethane binder An example of a composition that can be used is that referenced PBXN-109. Any other suitable composition may, however, be suitable.
  • An inert filler 50 having a density identical to or substantially identical to that of the explosive charge 40, is interposed between the explosive charge 40 and the rear sheath 21.
  • the inert filler 50 may be a suitable plastic material, in particular a polyurethane matrix material. comprising a mineral filler.
  • the explosive charge 40, the inert charge 50 and the firing device 20 are therefore located one after the other in the direction of the axis A-A ', in this order inside the body 12 of the ammunition.
  • the interface 52 between the explosive charge 40 and the inert charge 50 represented on the figures 1 and 3 , extends perpendicularly to the axis A-A '.
  • the rear sheath 21 and thus the firing device 20 are furthermore surrounded by the inert filler 50.
  • the explosive charge 40 is connected to the firing device 20 by pyrotechnic transmission means here comprising two pyrotechnic transmission units 60 passing through the inert filler 50.
  • the two transmission units 60 are arranged symmetrically on either side of the axis A-A 'and each extend parallel to this axis.
  • Each pyrotechnic transmission unit 60 here comprises a first end or front end in the form of a first priming relay 66 coupled with the explosive charge 40, a second end or a rear end in the form of a second priming relay. 62 coupled to the firing device 20 of the ammunition 10, and a pyrotechnic extender 64 interconnecting the two aforementioned ends.
  • This pyrotechnic extender 64 is an elongated element: it is therefore essentially directed along its main axis, or longitudinal axis, along which its length can be measured and which in the illustrated examples is parallel to the axis AA 'of the body 18, and which can be confused with it (non-illustrated case with a single pyrotechnic transmission unit 60 coaxial with the body 12).
  • the width of the pyrotechnic extender 64 is defined as the maximum radial dimension, that is to say the largest dimension measured in cross section, that is to say perpendicular to its main axis.
  • the first priming relay 66, the extension 64 and the second priming relay 62 may for example consist of an outer sheath of metal or plastic, filled with an explosive compound for transmitting the detonation of the setting device. to fire 20 to the explosive charge 40.
  • the second priming relay 62 is fitted around the rear sheath 21 and therefore in direct contact therewith.
  • the sheath 21 has a substantially cylindrical shape
  • the second priming relay 62 has a complementary shape, in particular ring portion, allowing it to marry the contour of the sheath.
  • the sheath 21 has a thickness sufficiently small for a detonation to propagate by influence from the firing device 20 to the pyrotechnic transmission unit 60.
  • the function of the second priming relay 62 is here to increase the surface of the detonation wave coming from the firing device, to guarantee its good subsequent transmission.
  • the second priming relay 62 could also be directly in contact with the firing device 20.
  • the pyrotechnic transmission unit 60 can be separated from the sheath 21 or, in the absence of sheath 21, the firing device 20, by a layer of inert material, in particular an inert material forming part of the inert load 50.
  • the thickness of the layer of inert material is sufficiently fine so that the detonation initiated by the firing device 20 can propagate by influence into the pyrotechnic transmission unit 60 and thus up to the explosive charge 40.
  • the thickness of the layer of inert material does not exceed 30mm.
  • the pyrotechnic extender 64 comprises a rigid tube, of constant diameter, filled with explosive.
  • the first priming relay 66 has a frustoconical shape, flared towards its free end, which allows the conformation of the detonation wave coming from the firing device 20 and transmitted by the pyrotechnic extender 64 until at the first priming relay 66, for example increasing its diameter for more effective detonation of the explosive charge.
  • the first priming relay 66 in particular its flared end, is here embedded inside the explosive charge 40.
  • the first priming relay 66 can be connected to the explosive charge 40 by simply being pressed against the free surface of said explosive charge 40, in particular by its flared end.
  • the first priming relay 66 can be bonded to the explosive charge 40 by a layer of adhesive 91 disposed between the surface of the explosive charge 40 and a surface of the ignition relay 66, in particular its end surface of which the section here is the largest.
  • one or each pyrotechnic transmission unit 60 may be coupled to the explosive charge by a layer of inert material 92 constituting the inert filler 50, said layer 92 being thin enough to allow the propagation of the detonation.
  • the second priming relay 62, the pyrotechnic extender 64 and the first priming relay 66, described above, may be replaced by any other element allowing the transmission of a detonation between the firing device and the explosive charge.
  • the characteristics described above in connection with the pyrotechnic transmission units 60 remain applicable to any other pyrotechnic transmission unit having a shape or a configuration different from those described and / or illustrated, remaining within the limits of the invention such that defined in the claims of this patent application.
  • the inert load 50 drowns, surrounds or surrounds all or part of the pyrotechnic transmission units 60 and in particular the pyrotechnic extender 64. It will be noted that according to an exemplary embodiment not illustrated, at least one pyrotechnic transmission unit 60 (and its pyrotechnic extender 64) could bypass the inert load 50 and couple the firing device 20 to the explosive charge 40 by passing through a gap formed between the inert load 50 and the inner face of the munition body 12.
  • the inert filler 50 fills the entire volume situated between the explosive charge 40 and the rear sheath 21 receiving the firing device 20, thus surrounding a portion of said sheath 21, it is also possible that a free space is maintained between the inert load 50 and the rear of the munition, and more particularly between the inert load 50 and the rear sheath 21 or the firing device 20.
  • FIG. figure 9 Such an embodiment is illustrated in FIG. figure 9 .
  • an elongated body 12 as described above and shown on the figure 1 .
  • the body 12 is empty and has an opening 19 at least at its rear end 12b.
  • the body 12 also has an opening 18 at its front end 12a.
  • the front sheath 23 then closes the opening 18 formed at the front end 12a of the body 12.
  • the first electrical duct 31 is connected to the front duct 23 and then to the supply zone 30.
  • the second duct 32 is connected at one of its ends to the supply zone 30. Its other end is free and, from by the rigidity of the conduit 32, is maintained in the vicinity of the rear opening 19.
  • the inner wall of the body 12 is coated with a linker.
  • a pasty explosive compound 40 is poured through the opening 19 into the body 12.
  • the body 12 is preferably placed in a vertical position, its forward end 12a directed downwards.
  • the explosive compound 40 fills the front part of the body 12, notably surrounding the front sheath 23 and part of the first duct 31.
  • the two pyrotechnic transmission units 60 are introduced inside the body 12 and placed therein so that one end of each of them, in particular the first priming relay 66 and possibly a section of the pyrotechnic extender 64, is embedded in the explosive compound 40.
  • the pyrotechnic transmission units 60 are held in position inside the body by suitable setting tools 84.
  • the body 12, including the pasty explosive compound 40 is conditioned to ensure the solidification of said compound 40 and the obtaining of a solid explosive charge adhering to the inner wall of the body 12.
  • the explosive compound 40 contains a crosslinkable binder and its crosslinker
  • the solidification occurs by crosslinking the binder.
  • the explosive compound 40 is melted, the solidification is obtained by lowering the temperature.
  • the solidification of the explosive compound ensures the imprisonment of the end (the first priming relay 66 and possibly a section of the pyrotechnic extender 64) of each pyrotechnic transmission unit 60 in the mass of the explosive charge 40.
  • wedging tools of the pyrotechnic transmission units 60 can be extracted or left in place if they can be dismantled during subsequent steps of the process.
  • the rear sheath 21 is previously disposed at the desired location and then an inert material 50 is introduced into the remaining free internal volume of the body 12 of the munition, so that it comes into contact with the free surface of the explosive charge 40 , traps the pyrotechnic transmission units 60 and surrounds the rear sheath 21.
  • the inert material 50 is cast in the pasty state and then solidified, for example by crosslinking, in the free internal volume of the body 12.
  • a firing device 20 is attached to the interior of the rear sheath 21 and a functional member 22 of the ballistic control member type is housed in the front sheath 23.
  • the functional member 22 is then connected to the first duct 31 and the firing device 20, the second conduit 32.
  • the explosive pasty compound 40 may be solidified before the introduction of the pyrotechnic transmission unit or units 60 into the body 12 of the munition 10.
  • the explosive charge 40 may be in the form of a preformed block adapted to be introduced inside the body 12 of the munition and to cooperate in complementary form with the internal walls of the this last.
  • each transmission unit 60 can be glued, in particular by its end (the first ignition relay 66 or in the absence thereof, the pyrotechnic extender 64), on the free surface of said load explosive 40.
  • the pyrotechnic transmission units 60 may also simply be in contact with the explosive charge 40 or positioned at a short distance therefrom. In this case, the inert load 50 can thus be introduced before the pyrotechnic transmission units 60, especially if it is introduced into the body 12 in a not yet solidified state.
  • the explosive charge is first put in place and solidified, then the inert charge is cast in the pasty state, and the pyrotechnic transmission unit 60 is introduced so that its end on the side of the explosive charge 40 (the first ignition relay 66 or in the absence of the latter, the pyrotechnic extender 64) comes into contact with the explosive charge 40 or so that this end is placed in the vicinity said explosive charge 40 being separated by a thin layer of inert material, in particular less than or equal to 30 mm.
  • At least one empty tube is positioned longitudinally in the body of the empty ammunition, one of its ends immersed in the body 12 to the level provided for the explosive material 40, the other end being located in rear portion for connection with the firing device 20.
  • a pasty explosive compound 40 is then poured via said tube to fill a volume in the front area of the ammunition (expected volume for the explosive charge) and the internal volume of the tube. It is understood in this case that the viscosity of the paste must be sufficiently low to be able to ensure the flow of the paste in the tube, said tube forming at least one section of the pyrotechnic extender 64 and possibly the first priming relay 66.
  • the body 12 of the munition is then conditioned to obtain the curing of the pasty explosive material 40. After solidification, the tube is either left in place or extracted. A monolithic block is thus obtained consisting of the explosive charge 40 at the front of the ammunition 10 extended by a bar of explosive, possibly contained in the tube if it is left in place, constituting all or part of the transmission unit. pyrotechnic 60. The following steps are identical to those described above in connection with the first example of implementation of the method.
  • the explosive charge 40 and the pyrotechnic transmission unit or units 60 constitute a preformed assembly (for example obtained by forming in a mold).
  • This assembly is introduced and adhered in the body 12, and cooperates by complementary shape with the inner surface of the front portion of the body of the munition 12.
  • the following steps are identical to those described above in connection with the first example of implementation. process.

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Claims (15)

  1. Munition (10), umfassend einen langgestreckten Körper (12), der sich entlang einer Achse (A-A') erstreckt und eine Sprengladung (40) und eine inerte Ladung (50) enthält, sowie ferner umfassend eine Zündungsvorrichtung (20), dadurch gekennzeichnet, dass wenigstens ein Teil der inerten Ladung (50) zwischen der Zündungsvorrichtung (20) und der Sprengladung (40) angeordnet ist, dass die Munition ferner wenigstens eine pyrotechnische Übertragungseinheit (60), welche mit einem pyrotechnischen Verlängerungsstück (64) versehen ist, umfasst, wobei die pyrotechnische Übertragungseinheit (60) die Zündungsvorrichtung (20) mit der Sprengladung (40) koppelt, um zu ermöglichen, die Sprengladung (40) unter der Wirkung der Zündungsvorrichtung (20) zur Detonation zu bringen.
  2. Munition (10) nach Anspruch 1, wobei die Zündungsvorrichtung (20) an ihrem hinteren Ende angeordnet ist und die Sprengladung (40) an ihrem vorderen Ende angeordnet ist.
  3. Munition (10) nach Anspruch 1 oder 2, wobei die pyrotechnische Übertragungseinheit wenigstens teilweise in die inerte Ladung eingebettet ist.
  4. Munition (10) nach einem der Ansprüche 1 bis 3, wobei die Sprengladung (40), die inerte Ladung (50) und die Zündungsvorrichtung (20) in dieser Reihenfolge nacheinander innerhalb des Körpers (12), in der axialen Richtung des Körpers (12) angeordnet sind, wobei die Sprengladung (40) dem Vorderteil der Munition (10) am nächsten gelegen ist.
  5. Munition (10) nach einem der Ansprüche 1 bis 4, umfassend wenigstens zwei voneinander beabstandete pyrotechnische Übertragungseinheiten (60).
  6. Munition (10) nach einem der Ansprüche 1 bis 5, wobei das pyrotechnische Verlängerungsstück (64) durch ein eine explosive Verbindung enthaltendes starres oder flexibles Rohr gebildet ist.
  7. Munition (10) nach einem der Ansprüche 1 bis 5, wobei das pyrotechnische Verlängerungsstück (64) durch eine starre Schnur beliebiger Form, die aus einer explosiven Verbindung gefertigt ist, gebildet ist.
  8. Munition (10) nach einem der Ansprüche 1 bis 7, wobei das pyrotechnische Verlängerungsstück (64) eine maximale radiale Abmessung aufweist, die wenigstens fünfmal kleiner als der maximale Durchmesser der Munition, vorzugsweise wenigstens zwanzigmal kleiner als dieser Durchmesser ist.
  9. Munition (10) nach einem der Ansprüche 1 bis 8, wobei das pyrotechnische Verlängerungsstück länger als breit ist, insbesondere wenigstens zehnmal länger als breit, vorzugsweise wenigstens zwanzigmal länger als breit ist.
  10. Munition (10) nach einem der Ansprüche 1 bis 9, wobei die Länge des pyrotechnischen Verlängerungsstücks wenigstens gleich 1/2-mal, vorzugsweise wenigstens 2/3-mal so groß wie die Gesamtlänge der Munition ist.
  11. Munition nach einem der Ansprüche 1 bis 10, wobei die pyrotechnische Übertragungseinheit (60) ferner ein erstes Zündrelais (66), das das pyrotechnische Verlängerungsstück (64) mit der Sprengladung (40) koppelt, umfasst.
  12. Munition (10) nach Anspruch 11, wobei das erste Zündrelais (66) von der Sprengladung (40) durch eine Schicht aus inertem Material, insbesondere eine Schicht aus inertem Material, das einen Teil der inerten Ladung (50) bildet, getrennt ist.
  13. Munition nach einem der Ansprüche 1 bis 12, wobei das pyrotechnische Verlängerungsstück (64) eine einzige explosive Verbindung mit homogener Zusammensetzung umfasst.
  14. Ladung, die dazu ausgelegt ist, in eine Munition nach einem der Ansprüche 1 bis 13 integriert zu werden, umfassend eine Sprengladung (40) und eine inerte Ladung (50) sowie ferner umfassend wenigstens eine pyrotechnische Übertragungseinheit (60), die mit einem pyrotechnischen Verlängerungsstück versehen ist, wobei die pyrotechnische Übertragungseinheit dazu ausgelegt ist, auf die Sprengladung (40) eine auf der von der Sprengladung (40) abgewandten Seite der inerten Ladung (50) ferninitiierte Detonation zu übertragen.
  15. Verfahren zur Herstellung einer Munition (10) nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, dass es wenigstens die folgenden Schritte umfasst:
    a) es wird ein langgestreckter Hohlkörper (12), der wenigstens eine Einführöffnung (19) an einem seiner Enden (12b) umfasst, bereitgestellt,
    b) in den Körper (12) werden eine Sprengladung (40), eine inerte Ladung (50) und wenigstens eine pyrotechnische Übertragungseinheit (60), die mit einem pyrotechnischen Verlängerungsstück (64) versehen ist, eingeführt, so dass die pyrotechnische Übertragungseinheit (60) mit der Sprengladung (40) gekoppelt ist,
    c) die pyrotechnische Übertragungseinheit (60) wird mit einer Zündungsvorrichtung (20) gekoppelt,
    wobei die inerte Ladung (50) nun zwischen der Zündungsvorrichtung (20) und der Sprengladung (40) angeordnet ist und wobei die pyrotechnische Übertragungseinheit ermöglicht, die Sprengladung (40) unter der Wirkung der Zündungsvorrichtung (20) zur Detonation zu bringen.
EP12813928.4A 2011-12-14 2012-12-14 Munition, Ladung für eine solche Munition und Verfahren zur Herstellung einer solchen Munition Active EP2791616B1 (de)

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FR1161638A FR2984483B1 (fr) 2011-12-14 2011-12-14 Munition, chargement pour une telle munition et procede de fabrication d'une telle munition
PCT/FR2012/052941 WO2013088090A1 (fr) 2011-12-14 2012-12-14 Munition, chargement pour une telle munition et procede de fabrication d'une telle munition

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US10101139B1 (en) * 2016-12-15 2018-10-16 The United States Of America As Represented By The Secretary Of The Navy Cook-off mitigation systems
US10724836B1 (en) * 2016-12-15 2020-07-28 The United States Of America, As Represented By The Secretary Of The Navy Cook-off mitigation systems
US10088285B1 (en) * 2016-12-15 2018-10-02 The United States Of America As Represented By The Secretary Of The Navy Cook-off mitigation systems using an uncanistered outgassing pad
US11460282B1 (en) 2017-09-29 2022-10-04 The United States Of America As Represented By The Secretary Of The Navy Insensitive munition initiation canister (IMIC)

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US9476683B2 (en) 2016-10-25
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ES2573487T3 (es) 2016-06-08
FR2984483A1 (fr) 2013-06-21
IL233121A (en) 2017-12-31
ZA201404330B (en) 2015-12-23
US20140331882A1 (en) 2014-11-13
EP2791616A1 (de) 2014-10-22
IL233121A0 (en) 2014-07-31
FR2984483B1 (fr) 2017-09-01

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