EP0434475A1 - Steering device for a missile - Google Patents

Steering device for a missile Download PDF

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Publication number
EP0434475A1
EP0434475A1 EP90402790A EP90402790A EP0434475A1 EP 0434475 A1 EP0434475 A1 EP 0434475A1 EP 90402790 A EP90402790 A EP 90402790A EP 90402790 A EP90402790 A EP 90402790A EP 0434475 A1 EP0434475 A1 EP 0434475A1
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EP
European Patent Office
Prior art keywords
projectile
impeller
nozzle
charge
control circuit
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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.)
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Application number
EP90402790A
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German (de)
French (fr)
Inventor
François Arene
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.)
Societe dEtudes de Realisations et dApplications Techniques SA SERAT
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Societe dEtudes de Realisations et dApplications Techniques SA SERAT
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Application filed by Societe dEtudes de Realisations et dApplications Techniques SA SERAT filed Critical Societe dEtudes de Realisations et dApplications Techniques SA SERAT
Publication of EP0434475A1 publication Critical patent/EP0434475A1/en
Withdrawn legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
    • F42B10/60—Steering arrangements
    • F42B10/66—Steering by varying intensity or direction of thrust
    • F42B10/661—Steering by varying intensity or direction of thrust using several transversally acting rocket motors, each motor containing an individual propellant charge, e.g. solid charge

Definitions

  • the present invention relates to a projectile, in particular anti-tank projectile, the effect of which is exerted during the flight over the objective by action from top to bottom.
  • the projectile is or is not stabilized in roll and the tilting plane sought for the attack on the target is not integral with the projectile but it is determined by the axis of the latter and the direction of the target or even by the axis of the projectile and the normal to the surface of the target.
  • the present invention proposes to make improvements to the tilting devices capable of such a characteristic, in projectiles of the type defined above, in particular in the case of projectiles stabilized in roll or having a low roll speed, which is generally the case of projectiles with hollow charges.
  • the projectile tilting device object of the present invention is essentially constituted by an impeller and by its control circuit connected to the target detector.
  • the impeller according to the invention comprises a propellant charge positioned in a load body integral with the projectile with the exception of one of its funds.
  • This bottom comprises at least one nozzle for said impeller as well as an initiator, preferably electropyrotechnic.
  • the bottom comprising said nozzle rotates around the axis of the projectile at a high roll speed V, for example of the order of 100 t / s and corresponding to a pitch N less than dimensions L of the target, ie such that N ⁇ V / L, during the flight of the projectile.
  • the nozzle-carrying base of said impeller is organized so that the initiation of the impeller causes said bottom and the body of the impeller to join together as well as the rocking of the projectile and / or his military charge.
  • the initiator of the impeller comprises a connector which bears on a contact ring secured to the projectile and which is divided into n sectors or pairs of sectors, connected to the control circuit of the impeller.
  • the commade circuit ignites the tilting impeller by connecting the on-board energy source, for example an electric battery, to the sector or to the pair of sectors which corresponds to the tilting towards the target, or of the normal to its surface, taking into account the nominal roll velocities of the projectile and the nozzle-holder bottom of the impeller, as well as the nominal times of operation of the propellant and of joining of said nozzle-holder bottom.
  • the projectile generally designated by the reference 1 comprises a tail unit 2, a military charge of the hollow charge type 3, a detector 4, a circuit for control and its power supply 5 and a tilting impeller 6 linked to the warhead 7 of the projectile.
  • the impeller 6 has an annular body and it has an outer wall 8 which constitutes part of the aerodynamic profile of the projectile 1 illustrated by FIG. 1 , a rear bottom 9 and an inner tube 10 defining a free axial section for the passage of the jet of the hollow charge 3 and on which a bottom 11 of said impeller can rotate.
  • This bottom which comprises one or more of the nozzles 12 of said impeller, will be referred to below as the nozzle holder bottom. It also carries a pyrotechnic initiator 13 as well as its connector 14.
  • This nozzle-holder bottom rotates around the axis of the projectile at a high rolling speed V, which can for example be of the order of 100 t / s and corresponding to a pitch N less than the dimensions L of the target, during the flight of the projectile, so that N ⁇ V / L.
  • Stops such as 15 and 16 are provided so as to limit the longitudinal movement of the nozzle holder base 11 and the sealing as well as the attachment of the nozzle holder base 11 to the rest of the impeller are carried out using seals , for example lip seals 17, 18 which can be made of plastic, in particular polyethylene, polyamide, this list not being limiting.
  • the connector 14 of the electropyrotechnic initiator 13 of the impeller is in contact with a sector ring 19 which is connected to the control circuit 5 of the impeller.
  • This ring is divided into n sectors or pairs of sectors, for example 6 to 20 sectors or pairs of sectors, this example not being limiting.
  • the propellant charge 20 of the projectile 1 is fixed to the bottom 9 of the impeller by means of a suspension means 21.
  • the propellant charge 20 is characterized by a very short combustion time, less than 10 ⁇ 2 s for example.
  • it is produced by a bundle of propellant blocks of small thickness and section in "section", by applying the provisions described and claimed by the present holder in his French patent number 7829372 filed on December 16, 1978 and published under number 2439174.
  • the bullet 7 of the projectile is integral with the nozzle holder base 11 and it comprises an aerodynamic turbine 22.
  • the impeller 6 can be placed behind the military charge 3 and the aerodynamic nozzle 22 can in this case be formed or not by the tail 2 of the projectile which is then made integral or not with the nozzle holder base 11 of the impeller 6.
  • the control circuit of the impeller ignites the initiator 13 of the impeller by connecting the source of edge, an electric battery for example, to the sector or to the pair of sectors of the ring 19 which corresponds to the tilting of the projectile in the direction of the target, or of the normal to its surface, taking into account the nominal roll speeds of the projectile and of the nozzle holder base 11 of its impeller 6, as well as nominal times for operating the propellant and for securing this base.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

Projectile acting during overflight or in front of a target by totally or partially pitching in a plane or in the vicinity of a plane defined by its axis and by a direction determined by a control circuit as a function of the target parameters, this projectile comprising a warhead, preferably acting in a directional manner such as a hollow charge and means of pitching constituted by a thruster integral with the said charge, characterised in that the propellent charge (20) of the said thruster (6) is fixed to the body (8) of the said thruster, this body (8) being integral with the projectile (1) and/or with its warhead (3) with the exception of a base or nozzle-bearing base (11) which is provided with the nozzle or nozzles (12) of the thruster (6) and its initiator (13), in that before the operation of the thruster the said nozzle-bearing base rotates about the axis of the said projectile (1) at high speed, the initiation of the thruster being obtained by means designed so as to cause the interlocking of the nozzle-bearing base and its body (8) and the pitching of the projectile (1) and/or of its warhead (3). <IMAGE>

Description

La présente invention est relative à un projectile notamment antichar dont l'effet s'exerce pendant le survol de l'objectif par action de haut en bas.The present invention relates to a projectile, in particular anti-tank projectile, the effect of which is exerted during the flight over the objective by action from top to bottom.

La présente titulaire dans ses brevets français:

  • - 7725655 déposé le 23 août 1977 et publié sous le numéro 2401400 et,
  • - 8200145 déposé le 7 février 1982 et publié sous le numéro 2519752,
    a décrit et revendiqué des armes destinées à l'attaque des véhicules, notamment des chars, à l'aide de projectiles à basculement équipés de charges militaires à effets dirigés, notamment à charges creuses, ces armes étant telles que le basculement du projectile précède le fonctionnement de sa charge et intervient soit en survol de la cible soit devant et à proximité de celle-ci.
This holder in its French patents:
  • - 7725655 deposited on August 23, 1977 and published under the number 2401400 and,
  • - 8200145 filed on February 7, 1982 and published under the number 2519752,
    described and claimed weapons intended for the attack of the vehicles, in particular tanks, using rocking projectiles equipped with military effects with directed effects, in particular with hollow charges, these weapons being such that the rocking of the projectile precedes the operation of its charge and intervenes either over the target or in front of and near it.

Dans les différents cas ainsi envisagés dans les brevets mentionnés ci-dessus, le projectile est ou non stabilisé en roulis et le plan de basculement recherché pour l'attaque de la cible n'est pas solidaire du projectile mais il est déterminé par l'axe de ce dernier et la direction de la cible ou bien encore par l'axe du projectile et la normale à la surface de la cible.In the various cases thus envisaged in the patents mentioned above, the projectile is or is not stabilized in roll and the tilting plane sought for the attack on the target is not integral with the projectile but it is determined by the axis of the latter and the direction of the target or even by the axis of the projectile and the normal to the surface of the target.

La présente invention se propose d'apporter des perfectionnements aux dispositifs de basculement capables d'une telle caractéristique, dans les projectiles du type défini ci-dessus, notamment dans le cas de projectiles stabilisés en roulis ou présentant une faible vitesse de roulis, ce qui est généralement le cas des projectiles à charges creuses.The present invention proposes to make improvements to the tilting devices capable of such a characteristic, in projectiles of the type defined above, in particular in the case of projectiles stabilized in roll or having a low roll speed, which is generally the case of projectiles with hollow charges.

A cet effet, le dispositif de basculement du projectile objet de la présente invention est essentiellement constitué par un impulseur et par son circuit de commande relié au détecteur de cible. L'impulseur selon l'invention comporte une charge propulsive positionnée dans un corps de charge solidaire du projectile à l'exception de l'un de ses fonds. Ce fond comporte au moins une tuyère pour ledit impulseur ainsi qu'un initiateur, de préférence électropyrotechnique.To this end, the projectile tilting device object of the present invention is essentially constituted by an impeller and by its control circuit connected to the target detector. The impeller according to the invention comprises a propellant charge positioned in a load body integral with the projectile with the exception of one of its funds. This bottom comprises at least one nozzle for said impeller as well as an initiator, preferably electropyrotechnic.

Selon l'invention, avant fonctionnement dudit impulseur, le fond comportant ladite tuyère tourne autour de l'axe du projectile à une vitesse de roulis V élevée, par exemple de l'ordre de 100 t/s et correspondant à un pas N inférieur aux dimensions L de la cible, soit telle que N < V/L, lors du vol du projectile.According to the invention, before operation of said impeller, the bottom comprising said nozzle rotates around the axis of the projectile at a high roll speed V, for example of the order of 100 t / s and corresponding to a pitch N less than dimensions L of the target, ie such that N <V / L, during the flight of the projectile.

Selon une autre caractéristique de l'invention, le fond porte-tuyère dudit impulseur est organisé de manière que l'initiation de l'impulseur provoque la solidarisation dudit fond et du corps de l'impulseur ainsi que le basculement du projectile et/ou de sa charge militaire.According to another characteristic of the invention, the nozzle-carrying base of said impeller is organized so that the initiation of the impeller causes said bottom and the body of the impeller to join together as well as the rocking of the projectile and / or his military charge.

Selon un mode de réalisation de l'invention, l'initiateur de l'impulseur comporte un connecteur qui porte sur une bague de contact solidaire du projectile et qui est divisé en n secteurs ou paires de secteurs, reliés au circuit de commande de l'impulseur. Après détection de la cible, le circuit de commade met à feu l'impulseur de basculement en reliant la source d'énergie de bord, par exemple une batterie électrique, au secteur ou à la paire de secteurs qui correspond au basculement en direction de la cible, ou de la normale à sa surface, compte tenu des vitesses nominales de roulis du projectile et du fond porte-tuyère de l'impulseur, ainsi que des délais nominaux de fonctionnement du propulseur et de solidarisation dudit fond porte-tuyère.According to one embodiment of the invention, the initiator of the impeller comprises a connector which bears on a contact ring secured to the projectile and which is divided into n sectors or pairs of sectors, connected to the control circuit of the impeller. After detection of the target, the commade circuit ignites the tilting impeller by connecting the on-board energy source, for example an electric battery, to the sector or to the pair of sectors which corresponds to the tilting towards the target, or of the normal to its surface, taking into account the nominal roll velocities of the projectile and the nozzle-holder bottom of the impeller, as well as the nominal times of operation of the propellant and of joining of said nozzle-holder bottom.

D'autres caractéristiques et avantages de la présente invention ressortiront de la description faite ci-après en référence aux dessins annexés d'un exemple de réalisation préféré.Other characteristics and advantages of the present invention will emerge from the description given below with reference to the appended drawings of a preferred embodiment.

Il est bien entendu qu'il ne s'agit là que d'un exemple et que l'invention peut s'appliquer également, sans sortir de son cadre, à tous autres modes de réalisation, formes, proportions, dispositions... Sur les dessins:

  • - la figure 1 est une vue schématique en élévation latérale représentant l'ensemble du projectile selon la présente invention et,
  • - la figure 2 est une vue de détail à échelle agrandie, en coupe axiale longitudinale illustrant les détails de réalisation de l'impulseur de basculement du projectile selon l'invention.
It is understood that this is only an example and that the invention can also be applied, without departing from its scope, to all other embodiments, shapes, proportions, arrangements ... On the drawings:
  • FIG. 1 is a schematic view in side elevation showing the entire projectile according to the present invention and,
  • - Figure 2 is a detail view on an enlarged scale, in longitudinal axial section illustrating the details of embodiment of the projectile tilting impeller according to the invention.

En se référant à la figure 1, on voit que dans cet exemple de réalisation non limitatif, le projectile désigné dans son ensemble par la référence 1 comporte un empennage 2, une charge militaire du type charge creuse 3, un détecteur 4, un circuit de commande et son alimentation électrique 5 et un impulseur de basculement 6 lié à l'ogive 7 du projectile.Referring to FIG. 1, it can be seen that in this nonlimiting exemplary embodiment, the projectile generally designated by the reference 1 comprises a tail unit 2, a military charge of the hollow charge type 3, a detector 4, a circuit for control and its power supply 5 and a tilting impeller 6 linked to the warhead 7 of the projectile.

En se référant maintenant à la figure 2, on voit que dans cet exemple de réalisation, l'impulseur 6 présente un corps de forme annulaire et il comporte une paroi extérieure 8 qui constitue une partie du profil aérodynamique du projectile 1 illustrée par la figure 1, un fond arrière 9 et un tube intérieur 10 délimitant une section axiale libre pour le passage du jet de la charge creuse 3 et sur lequel peut tourner un fond 11 dudit impulseur. Ce fond qui comporte une ou plusieurs des tuyères 12 dudit impulseur sera appelé ci-après fond porte-tuyère. Il porte également un initiateur pyrotechnique 13 ainsi que son connecteur 14. Ce fond porte-tuyère tourne autour de l'axe du projectile à une vitesse de roulis V élevée, pouvant être par exemple de l'ordre de 100 t/s et correspondant à un pas N inférieur aux dimensions L de la cible, lors du vol du projectile, de manière que N < V/L.Referring now to FIG. 2, it can be seen that in this embodiment, the impeller 6 has an annular body and it has an outer wall 8 which constitutes part of the aerodynamic profile of the projectile 1 illustrated by FIG. 1 , a rear bottom 9 and an inner tube 10 defining a free axial section for the passage of the jet of the hollow charge 3 and on which a bottom 11 of said impeller can rotate. This bottom, which comprises one or more of the nozzles 12 of said impeller, will be referred to below as the nozzle holder bottom. It also carries a pyrotechnic initiator 13 as well as its connector 14. This nozzle-holder bottom rotates around the axis of the projectile at a high rolling speed V, which can for example be of the order of 100 t / s and corresponding to a pitch N less than the dimensions L of the target, during the flight of the projectile, so that N <V / L.

On prévoit des butées telles que 15 et 16 de manière à limiter le mouvement longitudinal du fond porte-tuyère 11 et l'étanchéité ainsi que la solidarisation du fond porte-tuyère 11 du reste de l'impulseur sont réalisées à l'aide de joints, par exemple des joints à lèvre 17, 18 qui peuvent être réalisés en matière plastique notamment polyéthylène, polyamide, cette énumération n'étant pas limitative.Stops such as 15 and 16 are provided so as to limit the longitudinal movement of the nozzle holder base 11 and the sealing as well as the attachment of the nozzle holder base 11 to the rest of the impeller are carried out using seals , for example lip seals 17, 18 which can be made of plastic, in particular polyethylene, polyamide, this list not being limiting.

Le connecteur 14 de l'initiateur électropyrotechnique 13 de l'impulseur est au contact d'une bague à secteurs 19 qui est reliée au circuit de commande 5 de l'impulseur. Cette bague est divisée en n secteurs ou paires de secteurs, par exemple 6 à 20 secteurs ou paires de secteurs, cet exemple n'étant pas limitatif.The connector 14 of the electropyrotechnic initiator 13 of the impeller is in contact with a sector ring 19 which is connected to the control circuit 5 of the impeller. This ring is divided into n sectors or pairs of sectors, for example 6 to 20 sectors or pairs of sectors, this example not being limiting.

Le chargement propulsif 20 du projectile 1 est fixé au fond 9 de l'impulseur par l'intermédiaire d'un moyen de suspension 21. Selon l'invention, le chargement propulsif 20 se caractérise par une très courte durée de combustion, inférieure à 10⁻² s par exemple. De préférence, il est réalisé par un faisceau de blocs de propergol de faible épaisseur et de section en "ω", en appliquant les dispositions décrites et revendiquées par la présente titulaire dans son brevet français numéro 7829372 déposé le 16 décembre 1978 et publié sous le numéro 2439174.The propellant charge 20 of the projectile 1 is fixed to the bottom 9 of the impeller by means of a suspension means 21. According to the invention, the propellant charge 20 is characterized by a very short combustion time, less than 10 ⁻² s for example. Preferably, it is produced by a bundle of propellant blocks of small thickness and section in "section", by applying the provisions described and claimed by the present holder in his French patent number 7829372 filed on December 16, 1978 and published under number 2439174.

L'ogive 7 du projectile est solidaire du fond porte-tuyère 11 et elle comporte une turbine aérodynamique 22.The bullet 7 of the projectile is integral with the nozzle holder base 11 and it comprises an aerodynamic turbine 22.

Selon un autre mode de réalisation du dispositif selon l'invention, l'impulseur 6 peut être placé en arrière de la charge militaire 3 et la tuyère aérodynamique 22 peut dans ce cas être constituée ou non par l'empennage 2 du projectile qui est alors rendu solidaire ou non du fond porte-tuyère 11 de l'impulseur 6.According to another embodiment of the device according to the invention, the impeller 6 can be placed behind the military charge 3 and the aerodynamic nozzle 22 can in this case be formed or not by the tail 2 of the projectile which is then made integral or not with the nozzle holder base 11 of the impeller 6.

Ainsi qu'on l'a précisé ci-dessus, après détection de la cible par le détecteur 4 (figure 1), le circuit de commande de l'impulseur met à feu l'initiateur 13 de l'impulseur en reliant la source de bord, une batterie électrique par exemple, au secteur ou à la paire de secteurs de la bague 19 qui correspond au basculement du projectile en direction de la cible, ou de la normale à sa surface, compte tenu des vitesses nominales de roulis du projectile et du fond porte-tuyère 11 de son impulseur 6, ainsi que des délais nominaux de fonctionnement du propulseur et de solidarisation de ce fond.As specified above, after detection of the target by the detector 4 (FIG. 1), the control circuit of the impeller ignites the initiator 13 of the impeller by connecting the source of edge, an electric battery for example, to the sector or to the pair of sectors of the ring 19 which corresponds to the tilting of the projectile in the direction of the target, or of the normal to its surface, taking into account the nominal roll speeds of the projectile and of the nozzle holder base 11 of its impeller 6, as well as nominal times for operating the propellant and for securing this base.

Les dispositions décrites et revendiquées ici peuvent être prises en combinaison avec celles décrites et revendiquées par la présente titulaire dans ses demandes de brevets, déposées le même jour que la présente et intitulées respectivement:

  • - "perfectionnements aux projectiles antichars agissant en survol de l'objectif avec basculement";
  • - "projectile à basculement au devant et à proximité de la cible".
The provisions described and claimed here can be taken in combination with those described and claimed by the present owner in his patent applications, filed the same day as the present and entitled respectively:
  • - "improvements to anti-tank projectiles acting over the objective with tilting";
  • - "rocking projectile in front of and near the target".

Il demeure bien entendu que la présente invention n'est pas limitée aux exemples de réalisation décrits et représentés ici mais qu'elle en englobe toutes les variantes.It remains to be understood that the present invention is not limited to the exemplary embodiments described and shown here but that it encompasses all variants thereof.

Claims (11)

Projectile agissant en survol ou au devant d'un objectif par basculement en toute ou partie dans un plan ou au voisinage d'un plan défini par son axe et par une direction déterminée par un circuit de commande en fonction des paramètres de la cible, ce projectile comportant une charge militaire de préférence à effets dirigés telle qu'une charge creuse ainsi que des moyens de basculement constitués par un impulseur solidaire de ladite charge, caractérisé en ce que le chargement propulsif (20) dudit impulseur (6) est fixé au corps (8) dudit impulseur, ce corps (8) étant solidaire du projectile (1) et/ou de sa charge militaire (3) à l'exception d'un fond ou fond porte-tuyère (11) qui est pourvu de la ou des tuyères (12) de l'impulseur (6) et de son initiateur (13), en ce que avant fonctionnement de l'impulseur ledit fond porte-tuyère tourne autour de l'axe dudit projectile (1) à une vitesse élevée, l'initiation de l'impulseur étant obtenue par des moyens conçus de façon à provoquer la solidarisation du fond porte-tuyère de l'impulseur et de son corps (8) ainsi que le basculement du projectile (1) et/ou de sa charge militaire (3).Projectile acting in overflight or in front of an objective by tilting in whole or in part in a plane or in the vicinity of a plane defined by its axis and by a direction determined by a control circuit according to the parameters of the target, this projectile comprising a military charge preferably with directed effects such as a hollow charge as well as tilting means constituted by an impeller integral with said charge, characterized in that the propellant charge (20) of said impeller (6) is fixed to the body (8) of said impeller, this body (8) being integral with the projectile (1) and / or its military charge (3) with the exception of a bottom or nozzle-holder bottom (11) which is provided with or nozzles (12) of the impeller (6) and of its initiator (13), in that before operation of the impeller said nozzle-holder bottom rotates around the axis of said projectile (1) at a high speed, the initiation of the impeller being obtained by means designed in a fa is to cause the attachment of the bottom nozzle holder of the impeller and its housing (8) and the projectile tilt (1) and / or its warhead (3). Projectile selon la revendication 1, caractérisé en ce que les moyens assurant l'initiation de l'impulseur sont constitués d'un circuit de commande (5) dont les connections présentent n voies correspondant à n orientations différentes de la tuyère (12) dudit impulseur, par rapport au corps du projectile lors de l'initiation de l'impulseur, ce dernier étant initié par celle des n voies correspondant à l'orientation choisie par le circuit de commande (5), en fonction des signaux du détecteur (4) ainsi que des délais nominaux de fonctionnement de l'impulseur et de solidarisation du fond porte-tuyère (11).Projectile according to claim 1, characterized in that the means ensuring the initiation of the impeller consist of a control circuit (5) whose connections have n channels corresponding to n different orientations of the nozzle (12) of said impeller , relative to the body of the projectile during the initiation of the impeller, the latter being initiated by that of the n channels corresponding to the orientation chosen by the control circuit (5), as a function of the signals from the detector (4) as well as nominal operating times for the impeller and for securing the nozzle holder base (11). Projectile selon l'une des revendications 1 ou 2, caractérisé en ce que le fond porte-tuyères (11) tourne autour de l'axe du projectile (1) à une vitesse de roulis V élevée, de l'ordre de 100 t/s, et correspondant à un pas N inférieur aux dimensions L de la cible, lors du vol du projectile, de manière que N < V/L.Projectile according to either of Claims 1 and 2, characterized in that the nozzle-carrying base (11) rotates around the axis of the projectile (1) at a high roll speed V, of the order of 100 t / s, and corresponding to a pitch N less than the dimensions L of the target, during the flight of the projectile, so that N <V / L. Projectile selon la revendication 2, caractérisé en ce que l'orientation choisie par le circuit de commande (5) correspond à la direction de la cible ou à la normale à la surface de ladite cible.Projectile according to claim 2, characterized in that the orientation chosen by the control circuit (5) corresponds to the direction of the target or to the normal to the surface of said target. Projectile selon l'une quelconque des revendications précédentes, caractérisé en ce que l'étanchéité et la solidarisation du fond porte-tuyère (11) avec le corps dudit impulseur sont assurées, sous l'effet de la pression de fonctionnement de l'impulseur à l'aide de joints (17, 18) pouvant être du type à lèvre et réalisés notamment en matière plastique du type polyéthylène ou polyamide.Projectile according to any one of the preceding claims, characterized in that the sealing and the connection of the nozzle holder base (11) with the body of the said impeller are ensured, under the effect of the operating pressure of the impeller at using seals (17, 18) which may be of the lip type and made in particular of plastic material of the polyethylene or polyamide type. Projectile selon l'une quelconque des revendications précédentes, caractérisé en ce que le fond porte-tuyère (11) comporte des butées (15, 16) pour limiter le mouvement longitudinal dudit fond avant application de la pression des gaz de l'impulseur.Projectile according to any one of the preceding claims, characterized in that the nozzle-carrying base (11) comprises stops (15, 16) for limiting the longitudinal movement of said bottom before application of the pressure of the gases from the impeller. Projectile selon l'une quelconque des revendications précédentes, caractérisé en ce que ledit impulseur de basculement (6) est déclenché par un initiateur électropyrotechnique (13).Projectile according to any one of the preceding claims, characterized in that the said tilting impeller (6) is triggered by an electropyrotechnic initiator (13). Projectile selon l'une quelconque des revendications précédentes, caractérisé en ce que ledit initiateur comporte un connecteur (14) qui est au contact d'une bague à secteurs (19).Projectile according to any one of the preceding claims, characterized in that the said initiator comprises a connector (14) which is in contact with a sector ring (19). Projectile selon la revendication 8, caractérisé en ce que ledit connecteur (14) comporte n secteurs ou paires de secteurs reliés par n voies au circuit de commande (5) et correspondant à n orientations de la tuyère (12) de l'impulseur dans un repère lié au projectile.Projectile according to claim 8, characterized in that said connector (14) comprises n sectors or pairs of sectors connected by n channels to the control circuit (5) and corresponding to n orientations of the nozzle (12) of the impeller in a landmark linked to the projectile. Projectile selon l'une quelconque des revendications précédentes, caractérisé en ce que les n voies du circuit de commande (4) de l'impulseur et les orientations correspondantes de sa tuyère (12) sont au nombre de 6 à 20.Projectile according to any one of the preceding claims, characterized in that the n tracks of the control circuit (4) of the impeller and the corresponding orientations of its nozzle (12) are 6 to 20 in number. Projectile selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comporte un chargement propulsif (20) présentant une très courte durée de combustion, inférieure notamment à 10⁻² s, ce chargement étant réalisé par un faisceau de blocs de propergol de faible épaisseur, et présentant de préférence une section en "ω".Projectile according to any one of the preceding claims, characterized in that it comprises a propellant charge (20) having a very short combustion time, in particular less than 10⁻² s, this loading being carried out by a bundle of propellant blocks of small thickness, and preferably having a section in "ω".
EP90402790A 1989-12-18 1990-10-08 Steering device for a missile Withdrawn EP0434475A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8916704 1989-12-18
FR8916704A FR2656083B1 (en) 1989-12-18 1989-12-18 IMPROVEMENTS TO PROJECTILES ACTING OVER FLIGHT OR IN FRONT OF THE TARGET.

Publications (1)

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EP0434475A1 true EP0434475A1 (en) 1991-06-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP90402790A Withdrawn EP0434475A1 (en) 1989-12-18 1990-10-08 Steering device for a missile

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EP (1) EP0434475A1 (en)
DE (1) DE434475T1 (en)
FR (1) FR2656083B1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3429798C1 (en) * 1984-08-13 1985-12-12 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn Device for correcting the trajectory of a projectile
EP0255776A2 (en) * 1986-07-29 1988-02-10 Royal Ordnance plc Guidance apparatus for projectiles

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3429798C1 (en) * 1984-08-13 1985-12-12 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn Device for correcting the trajectory of a projectile
EP0255776A2 (en) * 1986-07-29 1988-02-10 Royal Ordnance plc Guidance apparatus for projectiles

Also Published As

Publication number Publication date
FR2656083B1 (en) 1994-05-27
FR2656083A1 (en) 1991-06-21
DE434475T1 (en) 1991-11-07

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