EP0256894B1 - Rückstossfreie Geschütze oder Abschusssysteme - Google Patents

Rückstossfreie Geschütze oder Abschusssysteme Download PDF

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Publication number
EP0256894B1
EP0256894B1 EP19870401184 EP87401184A EP0256894B1 EP 0256894 B1 EP0256894 B1 EP 0256894B1 EP 19870401184 EP19870401184 EP 19870401184 EP 87401184 A EP87401184 A EP 87401184A EP 0256894 B1 EP0256894 B1 EP 0256894B1
Authority
EP
European Patent Office
Prior art keywords
projectile
weapon
ballast
launcher system
wires
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP19870401184
Other languages
English (en)
French (fr)
Other versions
EP0256894A1 (de
Inventor
François Arene
Bernard Castagner
Claude Waitzenegger
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
Original Assignee
Societe dEtudes de Realisations et dApplications Techniques SA SERAT
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 Societe dEtudes de Realisations et dApplications Techniques SA SERAT filed Critical Societe dEtudes de Realisations et dApplications Techniques SA SERAT
Publication of EP0256894A1 publication Critical patent/EP0256894A1/de
Application granted granted Critical
Publication of EP0256894B1 publication Critical patent/EP0256894B1/de
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A1/00—Missile propulsion characterised by the use of explosive or combustible propellant charges
    • F41A1/08—Recoilless guns, i.e. guns having propulsion means producing no recoil
    • F41A1/10—Recoilless guns, i.e. guns having propulsion means producing no recoil a counter projectile being used to balance recoil

Definitions

  • the present invention relates to improvements made to recoilless weapons, which can be fired from a partially confined and protected space, as well as to all weapons for which it is desired to limit the ergonomic effects of the environment due to noise, shock, toxicity or the "signature" of the propellants.
  • the invention overcomes these drawbacks.
  • a launching weapon without projectile recoil comprising a propellant gargousse, placed in a central position in a tube and interposed between on the one hand the projectile and on the other hand a ballast which provides compensation for the recoil pulse caused by launching the projectile.
  • EP-A1 0 027 418 describes a device of this type. This has the drawback of comprising a piston which seals the propellant charge from the ballast in a leaktight manner, which must be braked and stopped at the rear end of the launching tube.
  • the invention provides improvements to this type of weapon and it is characterized in that the ballast is constituted by a bundle of lungitudinal threads whose plastic and aerodynamic characteristics are chosen so that their ejection provides only effects rear limited and which are joined at their base so as to ensure, during their journey in the tube, the rear sealing of a chamber, of variable volume, located between the projectile and the ballast.
  • the example treated relates more particularly to an individual anti-tank or anti-armored portable infantry weapon, without recoil, which can be fired from a partially confined space.
  • the invention also applies, without departing from its scope, whatever its vocation, launching projectiles, missiles or rockets, fired blow by blow or in burst, fired from the shoulder of a shooter or from a single or multiple mount, which can be mounted on a vehicle, ship or aircraft.
  • the weapon's launch tube 1, FIG. 1 is preferably made of composite material, based on glass fiber, aramid, carbon, etc., used either by filament winding, or by injection on a "braid", either by "pultrusion".
  • this tube 1 can also be made of metal, fabric, "sandwich” structure, or any other.
  • the launch tube 1 is equipped, in particular with a firing device 2, which is preferably either percussion, causing the ignition of the gargousse 4 by percussion of a primer 11, or with electric impulse, generating the ignition of the gargousse 4 by battery discharge in an igniter 11, directly or through a capacitor or a voltage booster.
  • a firing device 2 which is preferably either percussion, causing the ignition of the gargousse 4 by percussion of a primer 11, or with electric impulse, generating the ignition of the gargousse 4 by battery discharge in an igniter 11, directly or through a capacitor or a voltage booster.
  • this device can be of any other type (piezoelectric, optoelectronic, ...) without departing from the scope of the invention.
  • the launch tube 1 of the weapon contains the projectile 3, on the one hand and the divided ballast 5 on the other hand, said ballast 5 playing the role of a rear piston; the projectile 3 and the ballast 5, according to the invention, delimit the central combustion chamber 22 in which the gargousse 4 is housed.
  • the projectile 3 comprises the contactor warhead 6, the military charge 7, the safety rocket 8, the base of the rear body 9, the tail, preferably deployable, 10.
  • the rear body base 9 may be hollow, hence a better possible adjustment of the central combustion chamber 22 according to the invention, for the gargousse 4, without knowing how to lengthen the launch tube 1, or reduce stability (static margin) of the projectile.
  • the projectile 3 can also include any other equipment: cap detection or localization device, propellant charge, guidance, trigger for subsequent operation, system for overflight attack, etc.
  • the gargousse 4 comprises a primer or an igniter 11, the propellant 12 contained in a case 13 and a confinement according to the invention in compressible material 14 (for example, expanded materials or polyethylene, polyurethane, PVC foam, etc.) . It is this confinement which ensures, according to the invention, the pre-established evolution of the volume of the central chamber 22 of the gargousse 4; Without departing from the scope of the invention, the gargousse can be introduced into an external pocket 15, to complete this confinement.
  • compressible material 14 for example, expanded materials or polyethylene, polyurethane, PVC foam, etc.
  • the gargousse 4 can have another organization assuring it its original character of being of evolving volume.
  • the divided ballast 5 comprises according to the invention, a bundle of threads 16 (for example threads of polyamide, of polyethylene, etc.). These wires are assembled at the head 17, preferably by welding, gluing, inhibiting, tightening, etc.
  • the divided ballast 5 according to the invention may also comprise a sole made of flexible material 18 (produced for example by dipping or overmolding, in a polyurethane resin, silicone, etc.), with the aim of improving the rear sealing of the chamber combustion of said gargousse 4, after bursting of its confinement.
  • the propellant 12 is ignited and has produced gases, after the initiation of the primer or igniter 11.
  • the internal wall 19 of the compressible confinement 20 is then expanded, and said confinement 20 is compressed and resists the rise in internal pressure.
  • the device according to the invention makes it possible to delay in a pre-established manner the increase in pressure in the central chamber 22, the elevation and the expansion of the propellant particles in the central chamber, of variable volume, located between the projectile 3 and the ballast 5. In particular, it ensures better ignition of all of the propellant particles. This results in better system performance and better reproducibility of projectile ejection speeds.
  • the combustion of the propellant 12 contained in the gargousse 4 has generated gases which fill said central chamber 22 according to the invention; these gases propel the projectile 3 and the ballast 5 according to the law of variation of the quantities of movement.
  • the good axial strength of the wires 16 of the ballast 5 according to the invention allows a regular and axialized exit of said ballast.
  • ballast 5 also comes out of the tube, deploys and bursts under the aerodynamic effect.
  • the large lift of the ballast wires 16 according to the invention ensures, according to the invention, rapid braking and satisfactory radial dispersion.

Landscapes

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

Claims (6)

1. Rückstoßfreie Waffe oder Geschoßabschußsystem, mit einer Treibladung (4), die zentral in einem Rohr (1) zwischen dem Geschoß (3) einerseits und einem Ballast (5) andererseits angeordnet ist, wobei der Ballast einen Ausgleich des durch die Abfeuerung des Geschoßes hervorgerufenen Rückstoßes gewährleistet, dadurch gekennzeichnet, daß Jn
der Ballast aus einem Bündel länglicher Fasern (16) besteht, deren plastische und aerodynamische Eigenschaften dergestalt gewählt sind, daß ihr Ausstoß lediglich begrenzte rückwärtsgerichtete Auswirkungen hat, und die an ihrer Basis dergestalt miteinander verbunden sind, daß während ihres Durchlaufes in dem Rohr (1) die Dichtheit einer zwischen dem Geschoß (3) und dem Ballast (5) angeordneten volumenvariablen Kammer (22) an ihrem hinteren Ende gewährleistet ist.
2. Waffe oder Geschoßabschußsystem nach Anspruch 1, dadurch gekennzeichnet, daß die Vereinigung der Fasern des Ballastes (16) zu einem Bündel, das die Dichtheit der Zentralkammer (22) gewährleistet, durch Wärmeselbstverschweißung an ihrer Basis (17) oder durch Anformung einer Platte aus Kunststoff (18) erzielt wird.
3. Waffe oder Geschoßabschußsystem nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Fäden des Ballastbündels (16) aus Polyamid oder Polyethylen bestehen.
4. Waffe oder Geschoßabschußsystem nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Treibladung (4) eine komprimierbare Hülle (14) mit einem vorgegebenen erweiterbaren Volumen aufweist, um die Zündung zu verbessern und ihre Zuverlässigkeit zu erhöhen, wobei die Hülle aus Polyethylen-, Polyurethan- oder Polyvinylchloridschaumstoff mit oder ohne zusätzlicher Außentasche besteht.
5. Waffe oder Geschoßabschußsystem nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Geschoß einen Geschoßboden oder einen Hohlkörper aufweist, der eine Verlängerung der Brennkammer sicherstellt.
EP19870401184 1986-07-23 1987-05-26 Rückstossfreie Geschütze oder Abschusssysteme Expired EP0256894B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8610680A FR2602040B1 (fr) 1986-07-23 1986-07-23 Perfectionnements apportes aux armes, ou systemes lanceurs, sans recul, de projectiles
FR8610680 1986-07-23

Publications (2)

Publication Number Publication Date
EP0256894A1 EP0256894A1 (de) 1988-02-24
EP0256894B1 true EP0256894B1 (de) 1989-10-18

Family

ID=9337663

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870401184 Expired EP0256894B1 (de) 1986-07-23 1987-05-26 Rückstossfreie Geschütze oder Abschusssysteme

Country Status (3)

Country Link
EP (1) EP0256894B1 (de)
DE (1) DE3760832D1 (de)
FR (1) FR2602040B1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2640229B1 (fr) * 1988-12-14 1994-09-23 Aerospatiale Systeme d'arme comportant un vehicule aerien a bord duquel est embarque au moins un dispositif pour le lancement d'un projectile
GB9020378D0 (en) * 1990-09-18 1990-10-31 Richmond Electronics & Enginee A device for firing a projectile
GB2264351B (en) * 1990-09-27 1994-03-16 Secr Defence Double piston propulsion unit
GB9021060D0 (en) * 1990-09-27 1990-11-07 Secr Defence Double piston propulsion unit
GB2281119B (en) * 1993-08-17 1998-03-25 Gordon Findlater Sound moderator
SE504130C2 (sv) * 1995-05-11 1996-11-18 Bofors Ab Sätt att dämpa ljudtrycket vid avfyringen av robotar
FR2770637B1 (fr) 1997-11-03 1999-12-03 Giat Ind Sa Projectile a charge formee et systeme d'arme tirant un tel projectile
US6631668B1 (en) * 2000-11-10 2003-10-14 David Wilson Recoilless impact device
RU2503909C1 (ru) * 2012-07-12 2014-01-10 Федеральное государственное казенное учреждение "Войсковая часть 44239" Гранатомет безоткатный

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4943437B1 (de) * 1970-07-23 1974-11-21
DE2553201C2 (de) * 1975-11-27 1984-05-10 Rheinmetall GmbH, 4000 Düsseldorf Rückstoß- und knallfrei abschießbares Geschoß
FR2467380B1 (fr) * 1979-10-10 1986-04-18 Europ Propulsion Dispositif de tir sans ejection de gaz vers l'arriere, ni recul

Also Published As

Publication number Publication date
FR2602040A1 (fr) 1988-01-29
DE3760832D1 (en) 1989-11-23
EP0256894A1 (de) 1988-02-24
FR2602040B1 (fr) 1988-11-10

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