WO2009103408A1 - Obus explosif - Google Patents

Obus explosif Download PDF

Info

Publication number
WO2009103408A1
WO2009103408A1 PCT/EP2009/000674 EP2009000674W WO2009103408A1 WO 2009103408 A1 WO2009103408 A1 WO 2009103408A1 EP 2009000674 W EP2009000674 W EP 2009000674W WO 2009103408 A1 WO2009103408 A1 WO 2009103408A1
Authority
WO
WIPO (PCT)
Prior art keywords
explosive
projectile
liquid
compensation element
interior
Prior art date
Application number
PCT/EP2009/000674
Other languages
German (de)
English (en)
Inventor
Sebastian Münzner
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
Priority to EP09713160A priority Critical patent/EP2245418A1/fr
Priority to CA2715693A priority patent/CA2715693A1/fr
Publication of WO2009103408A1 publication Critical patent/WO2009103408A1/fr
Priority to ZA2010/05624A priority patent/ZA201005624B/en

Links

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
    • F42B12/20—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of high-explosive type
    • F42B12/207—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of high-explosive type characterised by the explosive material or the construction of the high explosive warhead, e.g. insensitive ammunition

Definitions

  • the invention relates to an explosive projectile with a projectile casing, which encloses an interior, which is filled for the most part with an explosive, to which a volume compensation element filling the remaining interior is connected.
  • An encapsulated, easy to handle made disintegrant describes the DE 23 45 070 B2, an explosive DE 38 43 443 A1.
  • Various explosive projectiles are known inter alia from DE 602 02 419 T2, DE 601 08 817 T2, DE 20 2004 019 504 111, DE 295 19 568 U1, DE 39 13 543 C1 and DE 196 26 660 C2.
  • the explosive is usually filled in liquid form into the interior of the projectile casing and then cured. This can lead to cavities during the casting as well as during curing of the explosive and possibly also to cracks in the explosive.
  • Such voids and cracks represent a not insignificant security risk, because due to the high acceleration at the launch of the explosive projectile blowholes and cracks change their shape very quickly and the air in the voids and cracks can heat up so much due to the resulting compression that it comes to an ignition of the corresponding explosive.
  • a method for producing a large-caliber explosive projectile is also known from EP 1 338 860 A2, in which a plastic-bound explosive charge is located in the interior of the projectile casing, which is introduced into a deployable plastic casing introduced into the projectile.
  • the invention has for its object to provide an explosive projectile in which the risk of accidental ignition of the explosive at launch is less than in explosive ordnance with hardened liquid explosive.
  • the invention is essentially based on the idea of using a liquid explosive as explosive, which does not harden after being introduced into the interior of the projectile casing, but remains liquid.
  • the space not filled by the explosive in the projectile casing is filled by a volume compensation element, which compensates both the volume changes of the liquid explosive with temperature changes, as well as the liquid explosive seals and reliably prevents leakage of the explosive from the projectile casing.
  • the explosive projectile according to the invention has, inter alia, the advantage that it can be produced in a simple manner, since a hardening of the explosive after its introduction into the projectile casing is eliminated.
  • the volume compensation element consists of a container made of an elastic material (for example, a suitable plastic film) filled with a compressible gas or a compressible liquid, the container being gas-tightly connected (eg glued) to the inner wall of the projectile casing such that no gas is present , in particular no air, between the compensation element and the liquid explosive can pass.
  • an elastic material for example, a suitable plastic film
  • the container of the volume compensation element must be made of a material that is compatible with both the explosive and with the other materials used in the projectile (if they come into contact with the container), so that the corresponding material properties over a longer period in the given Temperature range to be maintained. So it is not uncommon that the buyer of corresponding explosive projectiles requires a useful life of such bullets of, for example, 25 years.
  • the material of the container must be chosen such that no escape of the gas in it or the liquid contained in it can take place during the guaranteed service life.
  • the volume compensation element is preformed and adjusted to the planned position in the store log. During insertion, in a vacuum or negative pressure, into the projectile, the volume compensation element is preferably folded or compressed. By preforming the volume compensation element and the gas contained, the body relaxes after insertion and fits into the orgive.
  • the adhesive should first be applied in the area of the ogive, where the volume compensation element will sit, to get a uniform adhesive layer. The application can preferably be carried out by spraying.
  • the blasting projectile 1 comprises a projectile casing 2 made of steel, which has an opening 3 on the front side into which an impact fuse (not shown) can be screwed.
  • the explosive 6 is liquid explosive.
  • volume compensation element 7 which is prestressed, for example, by means of a pressure plate arranged on the igniter side (not shown).
  • this volume compensation element 7 consists of a container 8 made of elastic material (for example, a plastic film), in which a compressible gas 9 is located.
  • the volume compensation element 7 Upon heating of the liquid explosive 6, the volume compensation element 7 is compressed by the expansion of the explosive 6. On cooling of the liquid explosive 6, however, the volume compensation element 7 expands to compensate for the shrinkage of the explosive 6 in this case.
  • the elastic container 8 is glued to the inner wall 10 of the projectile casing 2 (the adhesive layer is provided with the reference numeral 11 in the figure), so that the volume compensation element 7 is arranged fixed in position in the projectile casing 2 and no air passes past the head igniter between the latter Volume compensation element 7 and the liquid explosive 6 can get.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Toys (AREA)

Abstract

L'invention concerne un obus explosif comportant une enveloppe (2) qui entoure un espace intérieur (5) rempli en grande partie de matière explosive (6) dans le prolongement de laquelle se trouve un élément de compensation de volume (7) qui remplit l'espace restant. Afin que le risque d'explosion involontaire de la matière explosive (6) lors du tir soit faible, la matière explosive (6) utilisée est liquide, cette matière explosive ne durcissant pas mais restant liquide lorsqu'elle se trouve dans l'espace intérieur (5) de l'enveloppe (2) de l'obus.
PCT/EP2009/000674 2008-02-22 2009-02-03 Obus explosif WO2009103408A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP09713160A EP2245418A1 (fr) 2008-02-22 2009-02-03 Obus explosif
CA2715693A CA2715693A1 (fr) 2008-02-22 2009-02-03 Obus explosif
ZA2010/05624A ZA201005624B (en) 2008-02-22 2010-08-05 Explosive projectile

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008010706A DE102008010706A1 (de) 2008-02-22 2008-02-22 Sprenggeschoss
DE102008010706.9 2008-02-22

Publications (1)

Publication Number Publication Date
WO2009103408A1 true WO2009103408A1 (fr) 2009-08-27

Family

ID=40678923

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/000674 WO2009103408A1 (fr) 2008-02-22 2009-02-03 Obus explosif

Country Status (5)

Country Link
EP (1) EP2245418A1 (fr)
CA (1) CA2715693A1 (fr)
DE (1) DE102008010706A1 (fr)
WO (1) WO2009103408A1 (fr)
ZA (1) ZA201005624B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016008391B4 (de) 2016-07-09 2018-05-24 Diehl Defence Gmbh & Co. Kg Geschoss

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2373883A (en) 1942-10-30 1945-04-17 Clyde B Ferrel Shell structure
US4011818A (en) * 1976-04-01 1977-03-15 The United States Of America As Represented By The Secretary Of The Navy Warhead explosive liner
EP1338860A2 (fr) * 2002-02-21 2003-08-27 Rheinmetall W & M GmbH Procédé de fabrication d'un projectile explosif de grand calibre et projectile produit avec une telle méthode
DE102004045361B3 (de) 2004-09-18 2006-05-11 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Verfahren und Vorrichtung zur Herstellung einer Hohlladung
DE102005050973A1 (de) * 2005-10-25 2007-04-26 Rheinmetall Waffe Munition Gmbh Sprenggeschoss

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2251482B (en) 1987-06-09 1993-09-22 Royal Ordnance Plc Explosive devices
DE3913543C1 (en) 1989-04-25 1990-10-31 Messerschmitt-Boelkow-Blohm Gmbh, 8012 Ottobrunn, De One-piece projectile housing - has recess which allows mfr. from rear
DE29519568U1 (de) 1995-12-09 1997-04-03 Diehl GmbH & Co, 90478 Nürnberg Sprenggeschoß
DE19626660C2 (de) 1996-07-03 2002-06-27 Diehl Stiftung & Co Sprenggeschoß
FR2812385B1 (fr) 2000-07-28 2003-02-21 Giat Ind Sa Munition explosive a corps fragmentable
FR2830931B1 (fr) 2001-10-12 2004-04-02 Giat Ind Sa Munition explosive
DE202004019504U1 (de) 2004-12-17 2006-04-20 Diehl Bgt Defence Gmbh & Co. Kg Sprenggeschoss

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2373883A (en) 1942-10-30 1945-04-17 Clyde B Ferrel Shell structure
US4011818A (en) * 1976-04-01 1977-03-15 The United States Of America As Represented By The Secretary Of The Navy Warhead explosive liner
EP1338860A2 (fr) * 2002-02-21 2003-08-27 Rheinmetall W & M GmbH Procédé de fabrication d'un projectile explosif de grand calibre et projectile produit avec une telle méthode
DE102004045361B3 (de) 2004-09-18 2006-05-11 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Verfahren und Vorrichtung zur Herstellung einer Hohlladung
DE102005050973A1 (de) * 2005-10-25 2007-04-26 Rheinmetall Waffe Munition Gmbh Sprenggeschoss

Also Published As

Publication number Publication date
EP2245418A1 (fr) 2010-11-03
DE102008010706A1 (de) 2009-08-27
ZA201005624B (en) 2011-06-29
CA2715693A1 (fr) 2009-08-27

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