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EP0544590A1 - Incendiary shell - Google Patents

Incendiary shell Download PDF

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Publication number
EP0544590A1
EP0544590A1 EP92403172A EP92403172A EP0544590A1 EP 0544590 A1 EP0544590 A1 EP 0544590A1 EP 92403172 A EP92403172 A EP 92403172A EP 92403172 A EP92403172 A EP 92403172A EP 0544590 A1 EP0544590 A1 EP 0544590A1
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EP
European Patent Office
Prior art keywords
incendiary
envelope
head according
cords
gel
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.)
Withdrawn
Application number
EP92403172A
Other languages
German (de)
French (fr)
Inventor
Denis Dilhan
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.)
Etienne LaCroix Tous Artifices SA
Original Assignee
Etienne LaCroix Tous Artifices SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Etienne LaCroix Tous Artifices SA filed Critical Etienne LaCroix Tous Artifices SA
Publication of EP0544590A1 publication Critical patent/EP0544590A1/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
    • F42B12/44—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information of incendiary type

Definitions

  • the present invention relates to the field of incendiary heads.
  • incendiary weapons a destructive thermal effect, which can be convective or radiative, is sought by dispersing an incendiary substance on contact with or near the target.
  • an incendiary head on a projectile, comprising in particular an envelope filled with an incendiary substance and means for dispersing this substance on the target when the projectile approaches or reaches this, conventionally an explosive charge placed within the incendiary substance.
  • incendiary substances based on liquid or gelled hydrocarbons which we will simply refer to as incendiary gel in the following.
  • a doping agent for example shavings of a reducing metal or alloy. These shavings are projected incandescent on the target, and transmit their thermal energy by conduction, thus adding to the heat transmitted by convection brought by the combustion of the flaming gel.
  • the object of the invention is to improve the performance of known incendiary heads and in particular to avoid the aforementioned drawbacks.
  • an incendiary head of the type comprising a casing containing an incendiary gel and a dopant for the incendiary gel, as well as dispersing and igniting means for dispersing and igniting the assembly, characterized in that the gel and the dopant are respectively placed in separate main and secondary compartments inside the envelope and in that the means of dispersion and ignition are adapted to ensure mixing of the gel and the dopant when they are put in action.
  • the main compartment and the secondary compartment are adjacent.
  • the incendiary gel and the dopant are separated by a disc forming a common partition, arranged perpendicular to an axis of symmetry of the envelope.
  • the dispersing means are adapted to also cut the envelope.
  • These dispersing means advantageously include detonating cutting cords.
  • the detonating cutting cords are advantageously constituted by a metal sheath containing an explosive, said sheath having a substantially triangular cross section, comprising two sides inclined between them and joined at a vertex, and a concave base towards the outside of the sheath, which base is symmetrical with respect to the bisector plane passing through the vertex joining the two sides, which is also the plane of symmetry of the sheath.
  • the plane of symmetry of the sheath of each cord is merged with a diametral plane of the incendiary head, the concavity of the base being turned towards the envelope.
  • the cords are placed inside the envelope and preferably in the center of the latter. It is preferred that the strings extend parallel to an axis of symmetry of the envelope. We prefer that the strings are equally distributed around an axis of symmetry of the envelope. We prefer to use three lines.
  • the strings are preferably placed inside a tube passing through the gel and the dopant along an axis of symmetry of the envelope.
  • the incendiary head further comprises a pyrogenic composition, contained inside the envelope in an auxiliary compartment adjacent to the secondary compartment containing the dopant, and crossed by an explosive pin, in contact with the cords.
  • the secondary compartment containing the dopant is advantageously located between the main compartment containing the gel and the explosive pin.
  • the incendiary head according to the invention is advantageously provided with a tail unit to form a projectile, and advantageously with propulsion means to form a rocket.
  • FIGS. 1 and 2 appended show a pyrotechnic head intended to be equipped with a tail unit to form a projectile.
  • FIG. 1 shows a pyrotechnic head according to the invention in schematic longitudinal section taken in a plane passing through the axis of symmetry of revolution of the head, referenced 101.
  • the head comprises a symmetrical envelope of revolution referenced 100 typically tubular, terminated at its lower part by a substantially spherical cap 104, the concavity of which faces the upper end of the envelope, and provided with a circular opening 1040 centered on the axis of symmetry 101 of the envelope.
  • the envelope 100 is closed at its upper part by a plug 103 crimped or fixed by any equivalent means to the upper end 1002 of the envelope.
  • the plug 103 is symmetrical about revolution about the axis 101 and is in the general form of a disc 1033 provided at its outer periphery with a cylindrical skirt 1030 centered on the axis 101.
  • the skirt 1030 is placed on the outer face of the disk 1033.
  • the free edge 1031 of the skirt 1030 is coplanar with the free edge 1000 of the upper end 1002 of the envelope.
  • the plug 103 is provided in its center with a cylindrical housing 1034 open towards the lower end 1001 of the envelope.
  • the housing 1034 projects perpendicularly to the disc 1033 towards the upper end 1000 of the envelope.
  • the cylindrical housing 1034 is closed by a bottom 1032 advantageously coplanar with the plane perpendicular to the axis 101 containing the free edge 1000 of the upper end 1002 of the envelope, and referenced 1010.
  • the lower circular opening 1040 of the envelope is advantageously tapped to engage therein by screwing a support ring 102, which participates in the connection of the incendiary head with the means for igniting it.
  • the ring 102 has a through bore 1020, centered on the axis 101.
  • the firing means are not shown and may be constituted for example by an inertia striker in the case of a projectile intended to explode on contact with the target.
  • a flange 105 threaded on its outer flank advantageously extends the body of the envelope at its lower part, to engage by screwing the head on a tailplane or not shown propulsion or guide means.
  • the envelope 100 is internally traversed by a central tube 150, fitted into the ring 102, and held at its upper part in the housing 1034 provided on the plug 103.
  • Two separating plates 106 and 107 arranged perpendicular to the axis 101, between the external wall of the tube 150 and the interior surface of the envelope define three compartments inside the envelope, which we will designate respectively, by progressing the lower part 1001 towards the upper part 1002 of the envelope, by main compartment 110, secondary compartment 120 and auxiliary compartment 130.
  • a seal referenced 111 is placed between the ring 102 and the casing 100 to guarantee the tightness of the compartment 110 at this level.
  • seals referenced 121 and 122 are provided at the level of the separating plate 106 respectively on the internal periphery of the envelope and the external periphery of the tube 150, to guarantee sealing between the main compartment 110 and the secondary compartment 120.
  • the main compartment 110 advantageously occupies most of the space inside the envelope 100, and contains a pyrotechnic substance for burning, typically an incendiary gel 115.
  • the secondary compartment 120 advantageously placed between the main 110 and auxiliary 130 compartments, contains a dopant 125 for the gel 115.
  • the auxiliary compartment 130 contains a pyrogenic composition 135, capable of producing a very intense thermal radiation, also called "thermal flash". It is for example a pulverulent mixture of an oxidizing body and a reducing body.
  • the dopant 125 and the composition 135 are advantageously based on a mixture of transition metals. In this case, the settling problems mentioned in connection with the incendiary heads according to the prior art are particularly important.
  • the compartments 120 and 130 preferably each occupy an equal portion of the space inside the envelope 100, typically a sixth.
  • An adjuvant for example a tear gas or a smoke 1035 is advantageously contained in the annular space of the plug 103 comprised between the plane 1010, the disc 1033, the skirt 1030 and the housing 1034.
  • the central tube 150 is advantageously traversed internally by detonating cutting cords referenced 180 and equally distributed on the internal face of the latter. These detonating cutting cords, advantageously three in number, are initiated by a pyrotechnic relay 109, placed in the bore 1020 of the ring 102.
  • the detonating cutting cords 180 terminate at the level of the separating plate 107 by an explosive pin 151, placed in the central tube 150 at the level of the auxiliary compartment 130. This explosive pawn 151 is initiated by the detonating cutting cords.
  • Figure 2 is a schematic cross section taken at the level of the reference A in Figure 1 and shows the relative arrangement of the detonating cutting cords 180 inside the central tube 150.
  • These detonating cutting cords have a cross section in the form of V, and are arranged in a star, their base widened in contact with the internal surface of the tube 150.
  • FIG. 3 shows a diagrammatic view in cross section of a detonating cutting cord 180.
  • the cord is constituted by a metal sheath 181 of essentially triangular section, comprising two sides inclined between them at an angle close to 60 °, vertex 184 rounded convex towards the outside and base 185 concave towards the outside, symmetrical with respect to the bisector plane P passing through the vertex 184, which is also plane of symmetry for the sheath.
  • the sheath is charged with an explosive 182.
  • the concavity facing outwards from the base of the sheath 181 ensures the concentration of the explosive power in the bisector plane P, which is advantageously confused with a diametral plane of the incendiary head.
  • This metal sheath 181 is advantageously made of lead and the explosive 182 is advantageously hexogen.
  • the choice of the quantity of explosive 182 contained in the sheath 181 makes it possible to adapt the power of the cords to the desired dispersion for the incendiary head.
  • FIGS. 4 and 5 illustrate the behavior of the sheath 181 under the effect of the detonation of the explosive 182. It is noted on examining FIG. 4 that under the effect of the detonation, the base of the sheath 181 cord is projected towards the wall 150 to form a dart 183 which crosses it, as illustrated in FIG. 5.
  • the operation of the incendiary head is as follows: firing means not shown (advantageously an uncertain striker as indicated above), initiate the pyrotechnic relay 109 which initiates the detonation of the detonating cutting cords 180.
  • the detonation initiated at the 'lower end of the cords propagates along the axis of the central tube to the explosive pin 151 with a high speed, typically of the order of 7 kilometers per second.
  • the detonation of the cords is accompanied by a rise in temperature and especially in pressure of the central tube which is cut radially by the high energy darts 183, released by the detonation of the cords 180.
  • the darts 183 quickly reach the envelope 100 for cut it along three lines substantially parallel to the axis 101 of the envelope 100. Under the effect of internal pressure, the three cut envelope fragments are ejected radially and the incendiary gel 115 is dispersed in three lobes, in directions corresponding to the bisector plane (B) of each dihedron having for common edge the axis 101 and containing two cords, as illustrated in FIG. 6. The role of the explosive pin 151 initiated by the cords 180 is illustrated in the figure 7.
  • the pyrogenic composition 135 is shown schematically in this figure by small circles and the dopant 125 for gel 115 by small squares.
  • the projectile comes into contact with a target referenced by the letter C with a speed normal to the target and oriented from left to right in Figure 7.
  • the incendiary head according to the invention therefore makes it possible to avoid the imbalance phenomena due to the settling of the dopant within the gel, while also being particularly advantageous thanks to the relative arrangement of the different compartments and to the use of detonating cords cutting to cut the envelope and disperse gel and dopant, with a better distribution of these around the target.
  • the cords allow in particular the use of an unfragmented envelope which makes it possible to increase the range of the projectile and / or to increase the quantity of incendiary gel carried.
  • the incendiary head according to the invention proves to be particularly reliable in its use and allows great repeatability of the results for maximum efficiency.
  • the lower part 1001 of the envelope is equipped with a tailplane and if necessary with propulsion means, while the upper part 1002 is equipped with a warhead.
  • the present invention is however not limited to such an application and can be used in a machine launched by hand, such as a hand grenade.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Abstract

The invention relates to an incendiary head of the type comprising a casing (100) containing an incendiary gel and a dopant for the incendiary gel as well as dispersal and inflammation means for dispersing and inflaming the assembly, characterised in that the incendiary gel (115) and the dopant (125) are placed respectively in main (110) and secondary (120) compartments separated on the inside of the casing, and in that the dispersal and inflammation means are designed to ensure a mixing of the gel and dopant when they are put to use. The invention is used for incendiary weapons. <IMAGE>

Description

La présente invention concerne le domaine des têtes incendiaires.The present invention relates to the field of incendiary heads.

Dans les armes incendiaires, on recherche un effet destructeur d'ordre thermique, pouvant être convectif ou radiatif, qui s'obtient en dispersant au contact ou à proximité de la cible, une substance incendiaire.In incendiary weapons, a destructive thermal effect, which can be convective or radiative, is sought by dispersing an incendiary substance on contact with or near the target.

Les lance-flammes sont des armes incendiaires connues, mais de courte portée.Flamethrowers are known but short-range incendiary weapons.

Afin d'accroître la portée des armes incendiaires, il a été proposé de monter sur un projectile une tête incendiaire, comportant notamment une enveloppe remplie d'une substance incendiaire et des moyens de dispersion de cette substance sur la cible lorsque le projectile approche ou atteint celle-ci, classiquement une charge explosive placée au sein de la substance incendiaire.In order to increase the range of incendiary weapons, it has been proposed to mount an incendiary head on a projectile, comprising in particular an envelope filled with an incendiary substance and means for dispersing this substance on the target when the projectile approaches or reaches this, conventionally an explosive charge placed within the incendiary substance.

Il a été proposé dans l'art antérieur d'utiliser comme substance incendiaire des compositions chimiques pyrophoriques qui s'enflamment d'elles-mêmes au contact de l'air et qui procurent un dégagement très intense de chaleur, mais de courte durée.It has been proposed in the prior art to use as incendiary substance pyrophoric chemical compositions which ignite on contact with air and which give off a very intense release of heat, but of short duration.

Or, il paraît souhaitable dans certains cas, d'avoir un dégagement thermique moins intense mais pendant une durée plus importante.However, it seems desirable in certain cases, to have a less intense thermal release but for a longer duration.

Il a été proposé dans l'art antérieur et dans ce but des substances incendiaires à base d'hydrocarbures liquides ou gélifiés que nous désignerons simplement par gel incendiaire dans la suite. Afin d'accroître l'effet exothermique, il a été proposé d'incorporer à la substance incendiaire un agent dopant, par exemple des copeaux d'un métal ou alliage réducteur. Ces copeaux sont projetés incandescents sur la cible, et lui transmettent par conduction leur énergie thermique, ajoutant ainsi à la chaleur transmise par convection apportée par la combustion du gel enflammé.It has been proposed in the prior art and for this purpose incendiary substances based on liquid or gelled hydrocarbons which we will simply refer to as incendiary gel in the following. In order to increase the exothermic effect, it has been proposed to incorporate into the incendiary substance a doping agent, for example shavings of a reducing metal or alloy. These shavings are projected incandescent on the target, and transmit their thermal energy by conduction, thus adding to the heat transmitted by convection brought by the combustion of the flaming gel.

Cependant, en particulier lorsque le dopant ainsi ajouté dans la substance incendiaire est de densité élevée, celui-ci a tendance à décanter lors du stockage et crée un balourd au niveau de la tête incendiaire, ce qui altère la performance ballistique du projectile.However, in particular when the dopant thus added to the incendiary substance is of high density, this tends to decant during storage and creates an imbalance at the level of the incendiary head, which alters the ballistic performance of the projectile.

Le but de l'invention est d'améliorer les performances des têtes incendiaires connues et d'éviter notamment les inconvénients précités.The object of the invention is to improve the performance of known incendiary heads and in particular to avoid the aforementioned drawbacks.

L'invention atteint ce but grâce à une tête incendiaire du type comportant une enveloppe contenant un gel incendiaire et un dopant pour le gel incendiaire, ainsi que des moyens de dispersion et d'inflammation pour disperser et enflammer l'ensemble, caractérisée en ce que le gel et le dopant sont respectivement placés dans des compartiments principal et secondaire séparés à l'intérieur de l'enveloppe et en ce que les moyens de dispersion et d'inflammation sont adaptés pour assurer un mélange du gel et du dopant lors de leur mise en oeuvre.The invention achieves this object by means of an incendiary head of the type comprising a casing containing an incendiary gel and a dopant for the incendiary gel, as well as dispersing and igniting means for dispersing and igniting the assembly, characterized in that the gel and the dopant are respectively placed in separate main and secondary compartments inside the envelope and in that the means of dispersion and ignition are adapted to ensure mixing of the gel and the dopant when they are put in action.

Selon une caractéristique avantageuse de l'invention, le compartiment principal et le compartiment secondaire sont adjacents.According to an advantageous characteristic of the invention, the main compartment and the secondary compartment are adjacent.

De préférence, alors, le gel incendiaire et le dopant sont séparés par un disque formant cloison commune, disposé perpendiculairement à un axe de symétrie de l'enveloppe.Preferably, then, the incendiary gel and the dopant are separated by a disc forming a common partition, arranged perpendicular to an axis of symmetry of the envelope.

Selon une autre caractéristique avantageuse, les moyens de dispersion sont adaptés pour également découper l'enveloppe. Ces moyens de dispersion comportent avantageusement des cordeaux détonants de découpage.According to another advantageous characteristic, the dispersing means are adapted to also cut the envelope. These dispersing means advantageously include detonating cutting cords.

Les cordeaux détonants de découpage sont avantageusement constitués par une gaine métallique contenant un explosif, ladite gaine ayant une section droite sensiblement triangulaire, comportant deux flancs inclinés entre eux et réunis à un sommet, et une base concave vers l'extérieur de la gaine, laquelle base est symétrique par rapport au plan bissecteur passant par le sommet joignant les deux flancs, qui est aussi plan de symétrie de la gaine.The detonating cutting cords are advantageously constituted by a metal sheath containing an explosive, said sheath having a substantially triangular cross section, comprising two sides inclined between them and joined at a vertex, and a concave base towards the outside of the sheath, which base is symmetrical with respect to the bisector plane passing through the vertex joining the two sides, which is also the plane of symmetry of the sheath.

Avantageusement, le plan de symétrie de la gaine de chaque cordeau est confondu avec un plan diamétral de la tête incendiaire, la concavité de la base étant tournée vers l'enveloppe.Advantageously, the plane of symmetry of the sheath of each cord is merged with a diametral plane of the incendiary head, the concavity of the base being turned towards the envelope.

Avantageusement, les cordeaux sont placés à l'intérieur de l'enveloppe et préférentiellement au centre de celle-ci. On préfèrera que les cordeaux s'étendent parallèlement à un axe de symétrie de l'enveloppe. On préfèrera que les cordeaux soient équirépartis autour d'un axe de symétrie de l'enveloppe. On préfèrera utiliser trois cordeaux. Les cordeaux sont de préférence placés à l'intérieur d'un tube traversant le gel et le dopant selon un axe de symétrie de l'enveloppe.Advantageously, the cords are placed inside the envelope and preferably in the center of the latter. It is preferred that the strings extend parallel to an axis of symmetry of the envelope. We prefer that the strings are equally distributed around an axis of symmetry of the envelope. We prefer to use three lines. The strings are preferably placed inside a tube passing through the gel and the dopant along an axis of symmetry of the envelope.

Selon une autre caractéristique avantageuse de l'invention, la tête incendiaire comporte de plus une composition pyrogène, contenue à l'intérieur de l'enveloppe dans un compartiment auxiliaire adjacent au compartiment secondaire contenant le dopant, et traversé par un pion explosif, en contact avec les cordeaux.According to another advantageous characteristic of the invention, the incendiary head further comprises a pyrogenic composition, contained inside the envelope in an auxiliary compartment adjacent to the secondary compartment containing the dopant, and crossed by an explosive pin, in contact with the cords.

Le compartiment secondaire contenant le dopant est avantageusement situé entre le compartiment principal contenant le gel et le pion explosif.The secondary compartment containing the dopant is advantageously located between the main compartment containing the gel and the explosive pin.

La tête incendiaire selon l'invention est avantageusement munie d'un empenage pour former un projectile, et avantageusement de moyens de propulsion pour former une roquette.The incendiary head according to the invention is advantageously provided with a tail unit to form a projectile, and advantageously with propulsion means to form a rocket.

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture suivante de la description détaillée d'un mode de réalisation non limitatif de l'invention et au vu du dessin annexé sur lequel :

  • la figure 1 présente en coupe schématique longitudinale prise dans un plan médian une tête incendiaire selon l'invention,
  • la figure 2 est une coupe transversale schématique de la tête prise au niveau du repère A de la figure 1,
  • la figure 3 montre en section droite un cordeau détonant de découpage,
  • les figures 4 et 5 sont des vues semblables à la figure 3 montrant l'effet de la détonation du cordeau sur une paroi,
  • la figure 6 montre l'effet sur la tête incendiaire de la détonation de l'ensemble des cordeaux,
  • la figure 7 illustre l'effet de l'explosion du pion explosif sur la dispersion des différentes compositions pyrotechniques de la tête.
Other characteristics and advantages of the invention will appear on reading the following description of a nonlimiting embodiment of the invention and in view of the appended drawing in which:
  • FIG. 1 shows in longitudinal schematic section taken in a median plane an incendiary head according to the invention,
  • FIG. 2 is a schematic cross section of the head taken at the level of the reference A in FIG. 1,
  • FIG. 3 shows in cross section a detonating cutting cord,
  • FIGS. 4 and 5 are views similar to FIG. 3 showing the effect of the detonation of the cord on a wall,
  • FIG. 6 shows the effect on the incendiary head of the detonation of all the cords,
  • FIG. 7 illustrates the effect of the explosion of the explosive pawn on the dispersion of the various pyrotechnic compositions of the head.

Bien que cet exemple ne soit pas limitatif on a représenté sur les figures 1 et 2 annexées une tête pyrotechnique destinée à être équipée d'un empenage pour former un projectile.Although this example is not limiting, FIGS. 1 and 2 appended show a pyrotechnic head intended to be equipped with a tail unit to form a projectile.

Nous désignons pour la suite de la description respectivement par partie inférieure et par partie supérieure les parties de la tête les plus proches et les plus éloignées, selon l'axe de symétrie de l'enveloppe, de l'empenage et/ou des moyens de propulsion du projectile, ce qui correspond à l'extrémité de la tête située à gauche sur la figure 1.For the remainder of the description, we designate the nearest and most distant parts of the head respectively as the lower part and the upper part, along the axis of symmetry of the envelope, the empennage and / or the means of propulsion of the projectile, which corresponds to the end of the head located on the left in Figure 1.

On a représenté sur la figure 1 une tête pyrotechnique selon l'invention en coupe longitudinale schématique prise dans un plan passant par l'axe de symétrie de révolution de la tête, référencé 101. La tête comporte une enveloppe à symétrie de révolution référencée 100 typiquement tubulaire, terminée à sa partie inférieure par une calotte 104 sensiblement sphérique, dont la concavité est tournée vers l'extrémité supérieure de l'enveloppe, et munie d'une ouverture circulaire 1040 centrée sur l'axe de symétrie 101 de l'enveloppe. L'enveloppe 100 est fermée à sa partie supérieure par un bouchon 103 serti ou fixé par tous moyens équivalents à l'extrémité supérieure 1002 de l'enveloppe. Le bouchon 103 est symétrique de révolution autour de l'axe 101 et se présente sous la forme générale d'un disque 1033 muni à sa périphérie extérieure d'une jupe cylindrique 1030 centrée sur l'axe 101. La jupe 1030 est placée sur la face extérieure du disque 1033. Le bord libre 1031 de la jupe 1030 est coplanaire avec le bord libre 1000 de l'extrémité supérieure 1002 de l'enveloppe. Le bouchon 103 est muni en son centre d'un logement cylindrique 1034 ouvert vers l'extrémité inférieure 1001 de l'enveloppe. Le logement 1034 fait saillie perpendiculairement au disque 1033 vers l'extrémité supérieure 1000 de l'enveloppe. Le logement cylindrique 1034 est fermé par un fond 1032 avantageusement coplanaire avec le plan perpendiculaire à l'axe 101 contenant le bord libre 1000 de l'extrémité supérieure 1002 de l'enveloppe, et référencé 1010.FIG. 1 shows a pyrotechnic head according to the invention in schematic longitudinal section taken in a plane passing through the axis of symmetry of revolution of the head, referenced 101. The head comprises a symmetrical envelope of revolution referenced 100 typically tubular, terminated at its lower part by a substantially spherical cap 104, the concavity of which faces the upper end of the envelope, and provided with a circular opening 1040 centered on the axis of symmetry 101 of the envelope. The envelope 100 is closed at its upper part by a plug 103 crimped or fixed by any equivalent means to the upper end 1002 of the envelope. The plug 103 is symmetrical about revolution about the axis 101 and is in the general form of a disc 1033 provided at its outer periphery with a cylindrical skirt 1030 centered on the axis 101. The skirt 1030 is placed on the outer face of the disk 1033. The free edge 1031 of the skirt 1030 is coplanar with the free edge 1000 of the upper end 1002 of the envelope. The plug 103 is provided in its center with a cylindrical housing 1034 open towards the lower end 1001 of the envelope. The housing 1034 projects perpendicularly to the disc 1033 towards the upper end 1000 of the envelope. The cylindrical housing 1034 is closed by a bottom 1032 advantageously coplanar with the plane perpendicular to the axis 101 containing the free edge 1000 of the upper end 1002 of the envelope, and referenced 1010.

L'ouverture circulaire inférieure 1040 de l'enveloppe est avantageusement taraudée pour y engager par vissage une bague support 102, qui participe à la liaison de la tête incendiaire avec les moyens de mise à feu de celle-ci. La bague 102 possède un alésage 1020 traversant, centré sur l'axe 101.The lower circular opening 1040 of the envelope is advantageously tapped to engage therein by screwing a support ring 102, which participates in the connection of the incendiary head with the means for igniting it. The ring 102 has a through bore 1020, centered on the axis 101.

Les moyens de mise à feu ne sont pas représentés et peuvent être constitués par exemple par un percuteur à inertie dans le cas d'un projectile destiné à exploser au contact de la cible.The firing means are not shown and may be constituted for example by an inertia striker in the case of a projectile intended to explode on contact with the target.

Une collerette 105 filetée sur son flanc extérieur prolonge avantageusement le corps de l'enveloppe à sa partie inférieure, pour engager par vissage la tête sur un empenage ou des moyens de propulsion ou de guidage non représentés.A flange 105 threaded on its outer flank advantageously extends the body of the envelope at its lower part, to engage by screwing the head on a tailplane or not shown propulsion or guide means.

L'enveloppe 100 est parcourue intérieurement par un tube central 150, emmanché dans la bague 102, et maintenu à sa partie supérieure dans le logement 1034 prévu sur le bouchon 103.The envelope 100 is internally traversed by a central tube 150, fitted into the ring 102, and held at its upper part in the housing 1034 provided on the plug 103.

Deux plaques séparatrices 106 et 107, disposées perpendiculairement à l'axe 101, entre la paroi externe du tube 150 et la surface intérieure de l'enveloppe définissent trois compartiments à l'intérieur de l'enveloppe, que nous désignerons respectivement, en progressant de la partie inférieure 1001 vers la partie supérieure 1002 de l'enveloppe, par compartiment principal 110, compartiment secondaire 120 et compartiment auxiliaire 130.Two separating plates 106 and 107, arranged perpendicular to the axis 101, between the external wall of the tube 150 and the interior surface of the envelope define three compartments inside the envelope, which we will designate respectively, by progressing the lower part 1001 towards the upper part 1002 of the envelope, by main compartment 110, secondary compartment 120 and auxiliary compartment 130.

Un joint d'étanchéité référencé 111 est placé entre la bague 102 et l'enveloppe 100 pour garantir à ce niveau l'étanchéité du compartiment 110.A seal referenced 111 is placed between the ring 102 and the casing 100 to guarantee the tightness of the compartment 110 at this level.

De même, des joints d'étanchéité référencés 121 et 122 sont prévus au niveau de la plaque séparatrice 106 respectivement sur la périphérie interne de l'enveloppe et la périphérie externe du tube 150, pour garantir l'étanchéité entre le compartiment principal 110 et le compartiment secondaire 120.Likewise, seals referenced 121 and 122 are provided at the level of the separating plate 106 respectively on the internal periphery of the envelope and the external periphery of the tube 150, to guarantee sealing between the main compartment 110 and the secondary compartment 120.

Le compartiment principal 110 occupe avantageusement la plus grande partie de l'espace intérieur à l'enveloppe 100, et contient une substance pyrotechnique pour incendier, typiquement un gel incendiaire 115.The main compartment 110 advantageously occupies most of the space inside the envelope 100, and contains a pyrotechnic substance for burning, typically an incendiary gel 115.

Le compartiment secondaire 120, avantageusement placé entre les compartiments principal 110 et auxiliaire 130, contient un dopant 125 pour le gel 115.The secondary compartment 120, advantageously placed between the main 110 and auxiliary 130 compartments, contains a dopant 125 for the gel 115.

Le compartiment auxiliaire 130 contient une composition 135 pyrogène, apte à produire un rayonnement thermique très intense, encore appelé "flash thermique". Il s'agit par exemple d'un mélange pulvérulant d'un corps oxydant et d'un corps réducteur.The auxiliary compartment 130 contains a pyrogenic composition 135, capable of producing a very intense thermal radiation, also called "thermal flash". It is for example a pulverulent mixture of an oxidizing body and a reducing body.

Le dopant 125 et la composition 135 sont avantageusement à base de mélange de métaux de transition. Dans ce cas, les problèmes de décantation mentionnés à propos des têtes incendaires selon l'art antérieur sont particulièrement importants.The dopant 125 and the composition 135 are advantageously based on a mixture of transition metals. In this case, the settling problems mentioned in connection with the incendiary heads according to the prior art are particularly important.

Les compartiments 120 et 130 occupent de préférence chacun une portion égale de l'espace intérieur à l'enveloppe 100, typiquement un sixième. Un adjuvant par exemple un gaz lacrymogène ou un fumigène 1035 est avantageusement contenu dans l'espace annulaire du bouchon 103 compris entre le plan 1010, le disque 1033, la jupe 1030 et le logement 1034.The compartments 120 and 130 preferably each occupy an equal portion of the space inside the envelope 100, typically a sixth. An adjuvant, for example a tear gas or a smoke 1035 is advantageously contained in the annular space of the plug 103 comprised between the plane 1010, the disc 1033, the skirt 1030 and the housing 1034.

Le tube central 150 est avantageusement parcouru intérieurement par des cordeaux détonants de découpage référencés 180 et équirépartis sur la face interne de celui-ci. Ces cordeaux détonants de découpage, avantageusement au nombre de trois, sont initiés par un relais pyrotechnique 109, disposé dans l'alésage 1020 de la bague 102.The central tube 150 is advantageously traversed internally by detonating cutting cords referenced 180 and equally distributed on the internal face of the latter. These detonating cutting cords, advantageously three in number, are initiated by a pyrotechnic relay 109, placed in the bore 1020 of the ring 102.

Les cordeaux détonants de découpage 180 se terminent au niveau de la plaque séparatrice 107 par un pion explosif 151, placé dans le tube central 150 au niveau du compartiment auxiliaire 130. Ce pion explosif 151 est amorcé par les cordeaux détonants de découpage.The detonating cutting cords 180 terminate at the level of the separating plate 107 by an explosive pin 151, placed in the central tube 150 at the level of the auxiliary compartment 130. This explosive pawn 151 is initiated by the detonating cutting cords.

La figure 2 est une coupe schématique transversale prise au niveau du repère A de la figure 1 et montre la disposition relative des cordeaux détonants de découpage 180 à l'intérieur du tube central 150. Ces cordeaux détonants de découpage ont une section droite en forme de V, et sont disposés en étoile, leur base élargie au contact de la surface interne du tube 150.Figure 2 is a schematic cross section taken at the level of the reference A in Figure 1 and shows the relative arrangement of the detonating cutting cords 180 inside the central tube 150. These detonating cutting cords have a cross section in the form of V, and are arranged in a star, their base widened in contact with the internal surface of the tube 150.

On a repris sur la figure 3, une vue schématique en section droite d'un cordeau détonant de découpage 180. Le cordeau est constitué par une gaine métallique 181 de section essentiellement triangulaire, comportant deux flancs inclinés entre eux d'un angle voisin de 60°, de sommet 184 arrondi convexe vers l'extérieur et de base 185 concave vers l'extérieur, symétrique par rapport au plan bissecteur P passant par le sommet 184, qui est aussi plan de symétrie pour la gaine. La gaine est chargée d'un explosif 182. La concavité tournée vers l'extérieur de la base de la gaine 181 assure la concentration de la puissance explosive dans le plan bissecteur P, qui est avantageusement confondu avec un plan diamétral de la tête incendiaire. Cette gaine métallique 181 est avantageusement réalisée en plomb et l'explosif 182 est avantageusement de l'hexogène.FIG. 3 shows a diagrammatic view in cross section of a detonating cutting cord 180. The cord is constituted by a metal sheath 181 of essentially triangular section, comprising two sides inclined between them at an angle close to 60 °, vertex 184 rounded convex towards the outside and base 185 concave towards the outside, symmetrical with respect to the bisector plane P passing through the vertex 184, which is also plane of symmetry for the sheath. The sheath is charged with an explosive 182. The concavity facing outwards from the base of the sheath 181 ensures the concentration of the explosive power in the bisector plane P, which is advantageously confused with a diametral plane of the incendiary head. This metal sheath 181 is advantageously made of lead and the explosive 182 is advantageously hexogen.

Le choix de la quantité d'explosif 182 contenu dans la gaine 181 permet d'adapter la puissance des cordeaux à la dispersion voulue pour la tête incendiaire.The choice of the quantity of explosive 182 contained in the sheath 181 makes it possible to adapt the power of the cords to the desired dispersion for the incendiary head.

Les figures 4 et 5 illustrent le comportement de la gaine 181 sous l'effet de la détonation de l'explosif 182. On remarque à l'examen de la figure 4 que sous l'effet de la détonation, la base de la gaine 181 du cordeau est projetée vers la paroi 150 pour former un dard 183 qui la transperse, comme illustré sur la figure 5.FIGS. 4 and 5 illustrate the behavior of the sheath 181 under the effect of the detonation of the explosive 182. It is noted on examining FIG. 4 that under the effect of the detonation, the base of the sheath 181 cord is projected towards the wall 150 to form a dart 183 which crosses it, as illustrated in FIG. 5.

Le fonctionnement de la tête incendiaire est le suivant : des moyens de mise à feu non représentés (avantageusement un percuteur à incertie comme indiqué précédemment), amorcent le relais pyrotechnique 109 qui initie la détonation des cordeaux détonants de découpage 180. La détonation initiée à l'extrémité inférieure des cordeaux se propage selon l'axe du tube central jusqu'au pion explosif 151 avec une vitesse élevée, typiquement de l'ordre de 7 kilomètres par seconde. La détonation des cordeaux s'accompagne d'une montée en température et surtout en pression du tube central qui est découpé radialement par les dards 183 à haute énergie, libérés par la détonation des cordeaux 180. Les dards 183 atteignent rapidement l'enveloppe 100 pour la découper selon trois lignes sensiblement parallèles à l'axe 101 de l'enveloppe 100. Sous l'effet de la pression interne, les trois fragments d'enveloppe découpés sont éjectés radialement et le gel incendiaire 115 se trouve dispersé selon trois lobes, dans des directions correspondant au plan bissecteur (B) de chaque dièdre ayant pour arête commune l'axe 101 et contenant deux cordeaux, ainsi qu'illustré sur la figure 6. Le rôle du pion explosif 151 amorcé par les cordeaux 180 est illustré sur la figure 7.The operation of the incendiary head is as follows: firing means not shown (advantageously an uncertain striker as indicated above), initiate the pyrotechnic relay 109 which initiates the detonation of the detonating cutting cords 180. The detonation initiated at the 'lower end of the cords propagates along the axis of the central tube to the explosive pin 151 with a high speed, typically of the order of 7 kilometers per second. The detonation of the cords is accompanied by a rise in temperature and especially in pressure of the central tube which is cut radially by the high energy darts 183, released by the detonation of the cords 180. The darts 183 quickly reach the envelope 100 for cut it along three lines substantially parallel to the axis 101 of the envelope 100. Under the effect of internal pressure, the three cut envelope fragments are ejected radially and the incendiary gel 115 is dispersed in three lobes, in directions corresponding to the bisector plane (B) of each dihedron having for common edge the axis 101 and containing two cords, as illustrated in FIG. 6. The role of the explosive pin 151 initiated by the cords 180 is illustrated in the figure 7.

On a représenté schématiquement sur cette figure par de petits cercles la composition pyrogène 135 et par de petits carrés le dopant 125 pour le gel 115.The pyrogenic composition 135 is shown schematically in this figure by small circles and the dopant 125 for gel 115 by small squares.

Le projectile arrive au contact d'une cible référencée par la lettre C avec une vitesse normale à la cible et orientée de la gauche vers la droite de la figure 7.The projectile comes into contact with a target referenced by the letter C with a speed normal to the target and oriented from left to right in Figure 7.

Le rôle du pion explosif 151 est triple :

  • . Premièrement, le pion 151 est utilisé pour disperser et initier la composition pyrogène 135. La composition 135 est amorcée en réaction par l'explosion du pion 151 pour créer un "flash thermique". Ce flash thermique, outre l'effet traumatisant qu'il peut générer, sert à enflammer tout ce qui est sensible à la chaleur et notamment la totalité du gel incendiaire, sous l'effet d'une part du fort rayonnement thermique généré, et d'autre part, par la traversée du gel 115 par des particules de composition pyrogène 135.
    De par le positionnement relatif du pion 151 et du compartiment 130, les particules 135 sont éjectées dans une direction essentiellement radiale par rapport à la direction d'arrivée du projectile sur la cible.
  • . Deuxièmement, de par le positionnement intermédiaire du dopant 125 entre le gel 115 et le pion 151, le dopant est projeté par l'onde de choc référencée 0 résultant de l'explosion du pion 151, vers la partie inférieure de la tête, donc vers le gel.
  • . Troisièmement, le pion explosif vise à compenser la vitesse d'arrivée du projectile vers la cible pour assurer une meilleure dispersion du gel autour de celle-ci. La composante de l'onde de choc dirigée vers l'extrémité inférieure de la tête s'ajoute à la composante radiale de l'onde de choc engendrée par la détonation des cordeaux et neutralise avantageusement la vitesse d'entraînement acquise par le gel 115 au moment de l'arrivée sur la cible.
    La géométrie du pion explosif peut être optimisée pour orienter l'onde de choc dans une direction voulue, notamment vers l'extrémité inférieure de la tête.
The role of the explosive counter 151 is threefold:
  • . First, the pin 151 is used to disperse and initiate the pyrogenic composition 135. Composition 135 is initiated in reaction by the explosion of the pin 151 to create a "thermal flash". This thermal flash, in addition to the traumatic effect which it can generate, serves to ignite everything which is sensitive to heat and in particular the whole of the incendiary gel, under the effect of a part of the strong thermal radiation generated, and on the other hand, by crossing the gel 115 with particles of pyrogenic composition 135.
    Due to the relative positioning of the pin 151 and the compartment 130, the particles 135 are ejected in an essentially radial direction relative to the direction of arrival of the projectile on the target.
  • . Secondly, by the intermediate positioning of the dopant 125 between the gel 115 and the pin 151, the dopant is projected by the shock wave referenced 0 resulting from the explosion of the pin 151, towards the lower part of the head, therefore towards the freeze.
  • . Third, the explosive counter aims to compensate for the speed of arrival of the projectile towards the target to ensure better dispersion of the gel around it. The component of the shock wave directed towards the lower end of the head is added to the radial component of the shock wave generated by the detonation of the cords and advantageously neutralizes the drive speed acquired by the gel 115 at time of arrival on target.
    The geometry of the explosive pin can be optimized to orient the shock wave in a desired direction, in particular towards the lower end of the head.

La tête incendiaire selon l'invention permet donc d'éviter les phénomènes de balourd dûs à la décantation du dopant au sein du gel, tout en étant particulièrement avantageuse par ailleurs grâce à la disposition relative des différents compartiments et à l'utilisation de cordeaux détonants de découpage pour découper l'enveloppe et disperser gel et dopant, avec une meilleure répartition de ceux-ci autour de la cible. Les cordeaux autorisent notamment l'utilisation d'une enveloppe non fragmentée ce qui permet d'accroître la portée du projectile et/ou d'augmenter la quantité de gel incendiaire emportée.The incendiary head according to the invention therefore makes it possible to avoid the imbalance phenomena due to the settling of the dopant within the gel, while also being particularly advantageous thanks to the relative arrangement of the different compartments and to the use of detonating cords cutting to cut the envelope and disperse gel and dopant, with a better distribution of these around the target. The cords allow in particular the use of an unfragmented envelope which makes it possible to increase the range of the projectile and / or to increase the quantity of incendiary gel carried.

Par ailleurs, grâce à la structure simple de l'ensemble, au faible nombre de pièces constitutives, la tête incendiaire selon l'invention se révèle particulièrement fiable dans son utilisation et permet une grande repétibilité des résultats pour une efficacité maximum.Furthermore, thanks to the simple structure of the assembly, with the small number of constituent parts, the incendiary head according to the invention proves to be particularly reliable in its use and allows great repeatability of the results for maximum efficiency.

Dans le cas de l'application à un projectile, la partie inférieure 1001 de l'enveloppe est équipée d'un empenage et le cas échéant de moyens de propulsion, tandis que la partie supérieure 1002 est équipée d'une ogive.In the case of application to a projectile, the lower part 1001 of the envelope is equipped with a tailplane and if necessary with propulsion means, while the upper part 1002 is equipped with a warhead.

la présente invention n'est cependant pas limitée à une telle application et peut être utilisée dans un engin lancé à la main, tel qu'une grenade à main.the present invention is however not limited to such an application and can be used in a machine launched by hand, such as a hand grenade.

Claims (17)

Tête incendiaire du type comportant une enveloppe (100) contenant un gel incendiaire et un dopant pour le gel incendiaire, ainsi que des moyens de dispersion et d'inflammation pour disperser et enflammer l'ensemble, caractérisée en ce que le gel incendiaire (115) et le dopant (125) sont respectivement placés dans des compartiments principal (110) et secondaire (120) séparés à l'intérieur de l'enveloppe (100), et en ce que les moyens de dispersion et d'inflammation sont adaptés pour assurer un mélange du gel et du dopant lors de leur mise en oeuvre.Incendiary head of the type comprising an envelope (100) containing an incendiary gel and a dopant for the incendiary gel, as well as dispersing and igniting means for dispersing and igniting the assembly, characterized in that the incendiary gel (115) and the dopant (125) are respectively placed in main (110) and secondary (120) compartments separated inside the envelope (100), and in that the means of dispersion and ignition are adapted to ensure a mixture of the gel and the dopant during their implementation. Tête incendiaire selon la revendication 1, caractérisée en ce que les compartiments principal (110) et secondaire (120) sont adjacents.Incendiary head according to claim 1, characterized in that the main (110) and secondary (120) compartments are adjacent. Tête incendiaire selon la revendication 2, caractérisée en ce que le gel incendiaire (115) et le dopant (125) sont séparés par un disque (106) formant cloison commune, disposé perpendiculairement à un axe de symétrie (101) de l'enveloppe (100).Incendiary head according to claim 2, characterized in that the incendiary gel (115) and the dopant (125) are separated by a disc (106) forming a common partition, arranged perpendicular to an axis of symmetry (101) of the envelope ( 100). Tête incendiaire selon l'une des revendications 1 à 3, caractérisée en ce que les moyens de dispersion (180) sont également adaptés pour découper l'enveloppe (100).Incendiary head according to one of claims 1 to 3, characterized in that the dispersing means (180) are also suitable for cutting the envelope (100). Tête incendiaire selon la revendication 4, caractérisée en ce que les moyens de dispersion comportent des cordeaux détonants de découpage (180).Incendiary head according to claim 4, characterized in that the dispersing means comprise detonating cutting cords (180). Tête incendiaire selon la revendication 5, caractérisée en ce que les cordeaux détonants de découpage (180) sont constitués par une gaine métallique (181) contenant un explosif (182), ladite gaine ayant une section droite sensiblement triangulaire, comportant deux flancs inclinés entre eux et réunis à un sommet (184), et une base concave (185) vers l'extérieur de la gaine, laquelle base est symétrique par rapport au plan bissecteur (P) passant par le sommet (184) joignant les deux flancs, qui est aussi plan de symétrie de la gaine (181).Incendiary head according to claim 5, characterized in that the detonating cutting cords (180) consist of a metal sheath (181) containing an explosive (182), said sheath having a substantially triangular cross section, comprising two sides inclined between them and joined to a vertex (184), and a concave base (185) towards the outside of the sheath, which base is symmetrical relative to the bisector plane (P) passing through the vertex (184) joining the two flanks, which is also plane of symmetry of the sheath (181). Tête incendiaire selon la revendication 6, caractérisée en ce que le plan de symétrie de la gaine (181) est confondu avec un plan diamétral de la tête incendiaire, la concavité de la base (185) de la gaine étant tournée vers l'enveloppe (100).Incendiary head according to claim 6, characterized in that the plane of symmetry of the sheath (181) coincides with a diametral plane of the incendiary head, the concavity of the base (185) of the sheath being turned towards the envelope ( 100). Tête incendiaire selon l'une des revendications 5 à 7, caractérisée en ce que les cordeaux (180) sont placés à l'intérieur de l'enveloppe (100).Incendiary head according to one of claims 5 to 7, characterized in that the cords (180) are placed inside the envelope (100). Tête incendiaire selon la revendication 8, caractérisée en ce que les cordeaux (180) sont placés au centre de l'enveloppe.Incendiary head according to claim 8, characterized in that the cords (180) are placed in the center of the envelope. Tête incendiaire selon l'une des revendications 5 à 9, caractérisée en ce que les cordeaux (180) s'étendent parallèlement à l'axe de symétrie (101) de l'enveloppe.Incendiary head according to one of claims 5 to 9, characterized in that the cords (180) extend parallel to the axis of symmetry (101) of the envelope. Tête incendiaire selon l'une des revendications 5 à 10, caractérisée en ce que les cordeaux (180) sont équirépartis autour de l'axe de symétrie (101) de l'enveloppe.Incendiary head according to one of claims 5 to 10, characterized in that the cords (180) are equally distributed around the axis of symmetry (101) of the envelope. Tête incendiaire selon l'une des revendications 5 à 11, caractérisée en ce qu'elle comporte trois cordeaux (180).Incendiary head according to one of claims 5 to 11, characterized in that it comprises three cords (180). Tête incendiaire selon l'une des revendications 8 à 12, caractérisée en ce que les cordeaux sont placés à l'intérieur d'un tube (150) traversant le gel (115) et le dopant (125), selon l'axe de symétrie (101) de l'enveloppe (100).Incendiary head according to one of claims 8 to 12, characterized in that the cords are placed inside a tube (150) passing through the gel (115) and the dopant (125), along the axis of symmetry (101) of the envelope (100). Tête incendiaire selon l'une des revendications 1 à 13, caractérisée en ce qu'elle comporte de plus une composition pyrogène (135) contenue à l'intérieur de l'enveloppe dans un compartiment auxiliaire (130) adjacent au compartiment secondaire (120) contenant le dopant (125), et traversé par un pion explosif (151), en contact avec les cordeaux (180).Incendiary head according to one of claims 1 to 13, characterized in that it further comprises a pyrogenic composition (135) contained inside the envelope in an auxiliary compartment (130) adjacent to the secondary compartment (120) containing the dopant (125), and crossed by an explosive pin (151), in contact with the cords (180). Tête incendiaire selon la revendication 14, caractérisée en ce que le compartiment secondaire (120) contenant le dopant (125) est situé entre le compartiment principal (110) contenant le gel incendiaire (115) et le pion explosif (151).Incendiary head according to claim 14, characterized in that the secondary compartment (120) containing the dopant (125) is located between the main compartment (110) containing the incendiary gel (115) and the explosive pin (151). Tête incendiaire selon l'une des revendications 1 à 15, caractérisée en ce qu'elle est munie d'un empenage pour former un projectile.Incendiary head according to one of claims 1 to 15, characterized in that it is provided with a tail unit to form a projectile. Tête incendiaire selon la revendication 16, caractérisée en ce qu'elle comporte de plus des moyens de propulsion pour former une roquette.Incendiary head according to claim 16, characterized in that it further comprises propulsion means for forming a rocket.
EP92403172A 1991-11-26 1992-11-25 Incendiary shell Withdrawn EP0544590A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9114584A FR2684178B1 (en) 1991-11-26 1991-11-26 INCENDARY HEAD.
FR9114584 1991-11-26

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2714050A1 (en) * 1993-12-17 1995-06-23 Giat Ind Sa Incendiary composition and incendiary projectile dispersing such a composition.

Citations (5)

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Publication number Priority date Publication date Assignee Title
US1847268A (en) * 1931-03-31 1932-03-01 George J Schladt Pyrotechnic device
US2398287A (en) * 1942-05-01 1946-04-09 Remington Arms Co Inc Incendiary bullet
FR1326945A (en) * 1962-06-28 1963-05-10 Extincteurs Le Chimiste Smoke machine
US3101053A (en) * 1960-06-08 1963-08-20 Stevenson Thomas Combination fragmentation structural incendiary damage projectile
US3421439A (en) * 1961-09-29 1969-01-14 Us Army Incendiary projectile

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1847268A (en) * 1931-03-31 1932-03-01 George J Schladt Pyrotechnic device
US2398287A (en) * 1942-05-01 1946-04-09 Remington Arms Co Inc Incendiary bullet
US3101053A (en) * 1960-06-08 1963-08-20 Stevenson Thomas Combination fragmentation structural incendiary damage projectile
US3421439A (en) * 1961-09-29 1969-01-14 Us Army Incendiary projectile
FR1326945A (en) * 1962-06-28 1963-05-10 Extincteurs Le Chimiste Smoke machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2714050A1 (en) * 1993-12-17 1995-06-23 Giat Ind Sa Incendiary composition and incendiary projectile dispersing such a composition.
EP0663376A1 (en) * 1993-12-17 1995-07-19 Giat Industries Incendiary composition and incendiary projectile dispersing such a composition

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Publication number Publication date
FR2684178B1 (en) 1995-05-12
FR2684178A1 (en) 1993-05-28

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