EP2686636A1 - Munition insensible - Google Patents

Munition insensible

Info

Publication number
EP2686636A1
EP2686636A1 EP12705063.1A EP12705063A EP2686636A1 EP 2686636 A1 EP2686636 A1 EP 2686636A1 EP 12705063 A EP12705063 A EP 12705063A EP 2686636 A1 EP2686636 A1 EP 2686636A1
Authority
EP
European Patent Office
Prior art keywords
propellant charge
annular gap
plug
casing
ring
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.)
Granted
Application number
EP12705063.1A
Other languages
German (de)
English (en)
Other versions
EP2686636B1 (fr
Inventor
Detlef Haeselich
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.)
Rheinmetall Waffe Munition GmbH
Original Assignee
Rheinmetall Waffe Munition GmbH
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 Rheinmetall Waffe Munition GmbH filed Critical Rheinmetall Waffe Munition GmbH
Publication of EP2686636A1 publication Critical patent/EP2686636A1/fr
Application granted granted Critical
Publication of EP2686636B1 publication Critical patent/EP2686636B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B39/00—Packaging or storage of ammunition or explosive charges; Safety features thereof; Cartridge belts or bags
    • F42B39/20—Packages or ammunition having valves for pressure-equalising; Packages or ammunition having plugs for pressure release, e.g. meltable ; Blow-out panels; Venting arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
    • F42B5/26—Cartridge cases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B30/00—Projectiles or missiles, not otherwise provided for, characterised by the ammunition class or type, e.g. by the launching apparatus or weapon used
    • F42B30/04—Rifle grenades

Definitions

  • the invention is concerned with a cartridge ammunition, especially in the middle caliber (for example, 40 mm) and as a training ammunition, as well as a simpler constructed so-called Berstêt.
  • a cartridge ammunition with a bursting device is known as a connection between projectile and drive.
  • This bursting device comprises a membrane with at least one predetermined breaking point, which opens at a predetermined pressure in the high-pressure chamber of the drive.
  • insensitive ammunition i. an ammunition with an insensitive drive
  • demands of increasing security must be increasingly taken into account. For example, it should not explode or disassemble if, for example, it is exposed to fire or other higher temperatures.
  • the invention has the object to show a further possibility for the compliance with the safety criteria even at higher temperatures.
  • the object is achieved by the features of claim 1.
  • Advantageous embodiments are shown in the subclaims.
  • the invention is based on the idea to provide the cartridge with a kind of releasable closure, which opens before the actual ignition temperature of the primer, so that the resulting inside the cartridge internal pressure can escape early to the outside. This explosion pressure is relieved through a hole in which the closure is incorporated in the propellant charge floor.
  • the closure is preferably formed by a metal sealing plug, which also receives the primer cap.
  • An annular gap is provided between the sealing plug and the sleeve of the insensitive drive. This is sealed by a fuse or a ring of fusible material to the propellant charge. Alternatively, this fusible material may also be incorporated in the annular gap. Combinations of both variants are also possible. If the ammunition is subject to a predetermined temperature and the fuse comes into effect, moves the plug with the primer without resistance to the outside. This creates a large opening (through the release of the hole) in the sleeve bottom, which prevents the propellant charge powder is exploded and it can come to a maximum slow burn.
  • the fuse or the ring of melting, solid and pressure-tight material preferably a Ostalloy- ring can be introduced by pressing and riveting in the sleeve bottom.
  • the Ostalloy fuse can in turn consist of a bismuth / zinc alloy. There are no longer any holes in the propellant charge case.
  • the ring in turn, can be stamped from rolled strip of material without the need for reworking.
  • Fig. 3 shows a variant of FIG .. 2 ..
  • FIG. 1 shows an ammunition 1 which has a projectile 2 and a propellant charge sleeve 3 which is fastened to the projectile 2 or its projectile base 10, for example.
  • Alternative compounds are crimp, Aufsteck- and locking connections, etc., as known for example from DE 10 1004 017 464 B4 or US 3,645,208 A.
  • a high pressure chamber 5 forming insert (drive chamber) 6 is involved, at the same time a (pyrotechnic) propellant charge 7, here in the form of powder, receives.
  • the propellant charge powder 7 has fürzünd- bores 15. Between the high pressure chamber 5 and located below the floor 10 of the projectile 2 low pressure chamber 8 overflow openings 9 are integrated, which are guided through the insert and open from the high pressure chamber 5 in the low pressure chamber 8 ,
  • the propellant charge tube 3 is preferably made of aluminum and takes a Anzündhütchen 11 in a bore (opening) 12 on the sleeve bottom 13.
  • the primer cap 11 itself is integrated in a stopper 14 acting as a closure, which is inserted into the bore (opening) 12. Plug 14 and primer 1 1 are sealed, for example, with a ring joint paint.
  • the bore 12 in turn should preferably be arranged centrally in the sleeve bottom 13. Off center attachments of plugs without primer caps are also possible.
  • annular gap 17 is now provided between the plug 14 and the propellant charge tube 3, which extends through the sleeve bottom to the outside ( Figure 2).
  • the annular gap 17 may be evenly or, as shown in Fig. 3, 17 'extending and allows, if necessary, a controlled release of the plug 14.
  • a mounting ring for better support should be provided
  • a fusible retaining ring 16 is further introduced into the propellant charge case 3. This can be riveted at an edge 18 on the plug 14.
  • the retaining ring 16 can be pressed against the sleeve 3 and compacted.
  • the melting temperature of the material is below the ignition temperature of the ignition and propellant charges. Subjecting the ammunition 1 in their transport, storage, etc. too high a temperature, the melting material of the retaining ring 16 begins to liquefy and passes through the annular gap 17 to the outside. The plug 14 is exposed by this measure and loses the mechanical support to the propellant charge shell 3. Thus, the plug 14, the bore 12 is free, so that a larger opening in the sleeve bottom 13 is formed.
  • the stopper 14 When firing the ammunition from a gun barrel (not shown in detail), the stopper 14, the primer cap 11 and the propellant charge shell 3 are supported against a weapon closure (not shown in detail), so that it is ensured that the stopper 14 does not escape from the body during firing Hole 12 can be pushed out.
  • the circlip 16 in turn takes on the firing of the ammunition 1 in normal use on this fuse or ring 16 acting gas pressure (from about 3000 bar) and seals the annular gap 17 from the propellant charge 7 down, so that the ring 16 in its dual function here acts as a sealing ring.

Abstract

L'invention concerne une munition à douille (1), en particulier de calibre moyen, comportant un projectile (2) et une douille de charge propulsive (3) qui est reliée au projectile (2). Une chambre (6) de la douille de charge propulsive (3) contient une charge propulsive (7) qui est reliée fonctionnellement à une amorce (11) d'un dispositif de mise à feu qui est placée dans un obturateur (14) pouvant être logé dans un alésage (12) du culot (13) de la douille de charge propulsive (3). Entre l'obturateur (14) et la douille de charge propulsive (3) se situe une fente annulaire (17, 17') qui traverse le culot (13) vers l'extérieur. La fente annulaire (17, 17') est étanchéifiée par un anneau (16) vis-à-vis de la charge propulsive (7) et se compose d'un matériau fusible, solide et résistant à la pression dont le point de fusion est au moins inférieur au point de fusion de la température d'allumage du dispositif de mise à feu et de la charge propulsive (7). Si la munition (1), lors du transport, du stockage, etc., est soumise à une température trop élevée, le matériau en fusion de l'anneau de sécurité (16) commence à se liquéfier et parvient à l'extérieur en passant par la fente annulaire (17, 17'). L'obturateur (14) s'en trouve libéré et ne présente plus de fixation mécanique sur la douille de charge propulsive (3). De ce fait, l'obturateur (14) dégage l'alésage (12), ce qui provoque une ouverture de plus grande dimension dans le culot (13).
EP12705063.1A 2011-03-18 2012-02-16 Munition insensible Active EP2686636B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011014402A DE102011014402A1 (de) 2011-03-18 2011-03-18 Insensitive Munition
PCT/EP2012/000677 WO2012126554A1 (fr) 2011-03-18 2012-02-16 Munition insensible

Publications (2)

Publication Number Publication Date
EP2686636A1 true EP2686636A1 (fr) 2014-01-22
EP2686636B1 EP2686636B1 (fr) 2017-06-28

Family

ID=45722583

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12705063.1A Active EP2686636B1 (fr) 2011-03-18 2012-02-16 Munition insensible

Country Status (3)

Country Link
EP (1) EP2686636B1 (fr)
DE (1) DE102011014402A1 (fr)
WO (1) WO2012126554A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014001576A1 (de) * 2014-02-06 2015-08-06 Diehl Bgt Defence Gmbh & Co. Kg Treibladungshülse für eine Patronenmunition
DE102014005997B3 (de) * 2014-04-28 2015-03-26 Rheinmetall Waffe Munition Gmbh Patrone und Verfahren zu ihrer Herstellung
DE102014013316B4 (de) 2014-09-08 2016-04-07 Diehl Bgt Defence Gmbh & Co. Kg Behältnis zur Aufbewahrung eines Explosivstoffs
US20180135953A1 (en) * 2016-11-15 2018-05-17 Nostromo Holdings, Llc Ammunition cartridge with a base plug vent
DE102017110871A1 (de) 2017-05-18 2018-11-22 Rheinmetall Waffe Munition Gmbh Antriebssystem für Patronenmunition
DE102017114950B4 (de) 2017-07-05 2022-05-05 Technische Universität Dresden Elektrisch betreibbare Schlauchpumpe
US11668550B2 (en) 2019-10-04 2023-06-06 Bae Systems Land & Armaments L.P. Scalable insensitive munitions primer

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3645208A (en) 1970-02-17 1972-02-29 Us Army Fuzeless target practice cartridge
US6523477B1 (en) * 1999-03-30 2003-02-25 Lockheed Martin Corporation Enhanced performance insensitive penetrator warhead
US6752085B2 (en) * 2002-05-06 2004-06-22 Lockheed Martin Corporation Method and apparatus for releasably attaching a closure plate to a casing
DE102004020838B3 (de) 2004-04-08 2005-06-23 Nico-Pyrotechnik Hanns-Jürgen Diederichs GmbH & Co. KG Patronenmunition, insbesondere mit mittlerem Kaliber
DE102004017464B4 (de) 2004-04-08 2006-05-18 Nico-Pyrotechnik Hanns-Jürgen Diederichs GmbH & Co. KG Patronierte Übungsmunition
DE102009048365B3 (de) 2009-10-06 2010-10-07 Rheinmetall Waffe Munition Gmbh Patronierte Munition mit einer Berstvorrichtung als Verbindung zwischen Geschoss und Antrieb

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2012126554A1 *

Also Published As

Publication number Publication date
DE102011014402A1 (de) 2012-09-20
EP2686636B1 (fr) 2017-06-28
WO2012126554A1 (fr) 2012-09-27

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