EP2245419B1 - Obus explosif et procédé de fabrication - Google Patents

Obus explosif et procédé de fabrication Download PDF

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Publication number
EP2245419B1
EP2245419B1 EP09713362.3A EP09713362A EP2245419B1 EP 2245419 B1 EP2245419 B1 EP 2245419B1 EP 09713362 A EP09713362 A EP 09713362A EP 2245419 B1 EP2245419 B1 EP 2245419B1
Authority
EP
European Patent Office
Prior art keywords
explosive
projectile
casing
liquid
elastic
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.)
Not-in-force
Application number
EP09713362.3A
Other languages
German (de)
English (en)
Other versions
EP2245419A1 (fr
Inventor
Sebastian Münzner
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 EP2245419A1 publication Critical patent/EP2245419A1/fr
Application granted granted Critical
Publication of EP2245419B1 publication Critical patent/EP2245419B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F42B12/20—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B33/00—Manufacture of ammunition; Dismantling of ammunition; Apparatus therefor
    • F42B33/02—Filling cartridges, missiles, or fuzes; Inserting propellant or explosive charges
    • F42B33/0214—Filling cartridges, missiles, or fuzes; Inserting propellant or explosive charges by casting

Definitions

  • the invention relates to an explosive projectile with a projectile casing, which encloses a space filled with an explosive interior.
  • the invention further relates to a method for producing the explosive projectile.
  • An encapsulated, easily manageable disintegrant describes the DE 23 45 070 B2 , an explosive device DE 38 43 443 A1 , Various explosive projectiles are among others from the DE 602 02 419 T2 , of the DE 601 08 817 T2 , of the DE 20 2004 019 504 U1 , of the DE 295 19 568 U1 , of the DE 39 13 543 C1 as well as the DE 196 26 660 C2 known.
  • an explosive is used in liquid form, it is filled 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.
  • the US 2,373,883 A discloses an explosive projectile, which has a unilaterally upwardly open shell, in which an explosive incorporated and which is pulled over the sides of the projectile nose. This makes it possible that by attacking the air (air resistance) on the projectile these pages pull out a first charge and the bullet is functional.
  • 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. Furthermore, the invention should disclose a method for producing such an explosive projectile.
  • 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 explosive is arranged airtight in the interior of the projectile casing in an elastic sheath.
  • the explosive projectile according to the invention has, inter alia, the advantage that it can be produced in a simple manner, since the explosive can already be introduced outside the projectile casing into the casing, which is made of plastic, for example, and can be hermetically sealed off. In this case, the formation of air bubbles within the liquid explosive, for example, by connection to a corresponding vacuum device can be largely prevented already at this time.
  • the envelope After the envelope has been hermetically sealed, it is then introduced into the envelope together with the explosive, for example from the mouth of the projectile casing, the elastic casing ensuring that the liquid explosive leaks unintentionally from the projectile casing or accidental ingress of air into the elastic casing prevented.
  • the elastic sheath must be made of a material that is compatible with both the explosive and the other materials used in the projectile (if they come into contact with the sheath), so that the corresponding material properties over a longer period in the specified temperature range to be kept. 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 elastic sheath is glued in a partial area with the inner wall of the projectile casing.
  • the liquid explosive in the interior of the projectile casing can not move undefined.
  • a space between the elastic sheath and the projectile casing should remain so that the elastic sheath can expand at a temperature expansion of the explosive within the interior, without deforming the projectile casing.
  • the volume compensation element may for example consist of a container which is filled with a compressible gas or a compressible liquid.
  • the volume compensation element is preformed and adjusted to the planned position in the store log.
  • the volume compensation element is preferably folded or compressed.
  • 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.
  • Fig. 1 1 denotes a spin-stabilized explosive projectile that can be fired, for example, from a tank howitzer, which 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.
  • a tank howitzer which 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 which is completely and airtight enclosed by an elastic sheath 7.
  • the elastic shell 7 is glued in the rear-side region of the projectile casing 2 with the inner wall 11 of the projectile casing 2, while between the elastic casing 7 and the projectile casing 2, a free space 9 remains on the front side.
  • This clearance 9 is on the one hand chosen such that the elastic sheath 7, and thus the liquid explosive 6, can expand unhindered with temperature changes.
  • the distance between the elastic sheath 7 and the detonator, not shown, is selected such that ignition of the liquid explosive 6 is ensured by the fuze safely.
  • liquid explosive 6 is first introduced into the elastic sheath 7 and then sealed airtight. Subsequently, the elastic shell 7 is inserted with the liquid explosive 6 therein through the opening 3 in the interior 5 of the projectile casing 2 and glued to the rear side with the projectile casing 2.
  • the appropriate adhesive layer was in Fig. 1 marked with the reference numeral 10.
  • Fig. 2 an explosive projectile 1 'is shown, which substantially corresponds to the explosive projectile 1 described above. It is merely the space provided at the explosive projectile 1 9 filled by an elastic volume compensation element 100, which is under bias.
  • this volume compensation element 100 consists of a container 101 (for example, a plastic film) in which a compressible gas (or optionally a compressible liquid) is located.
  • a compressible gas or optionally a compressible liquid

Landscapes

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

Claims (6)

  1. Projectile explosif comprenant une enveloppe de projectile (2) qui entoure un espace intérieur (5) rempli d'une matière explosive (6), la matière explosive (6) étant une matière explosive liquide, laquelle est entourée par une enveloppe flexible (7) d'une manière entièrement hermétique à l'air, caractérisé en ce que l'enveloppe flexible (7) qui entoure la matière explosive liquide (6), dans une zone partielle, est collée avec la paroi intérieure (11) de l'enveloppe de projectile (2) dans la zone côté arrière de l'enveloppe de projectile (2) avec celle-ci, et en ce que l'espace libre (9) restant entre l'enveloppe flexible (7) et l'enveloppe de projectile (2) est disposé dans la zone avant de l'espace intérieur (5).
  2. Projectile explosif selon la revendication 1, caractérisé en ce qu'il reste un espace libre (9) dans l'espace intérieur (5) de l'enveloppe de projectile (2) entre la matière explosive (6) entourée par l'enveloppe flexible (7) et la paroi intérieure, lequel est choisi de telle sorte que l'enveloppe flexible (7) peut se dilater lors des fluctuations de température de la matière explosive liquide (6).
  3. Projectile explosif selon la revendication 2, caractérisé en ce que l'espace libre (9) est rempli par un élément de compensation de volume (100) flexible.
  4. Projectile explosif selon la revendication 3, caractérisé en ce que l'élément de compensation de volume (100) se compose d'un récipient (101) qui est rempli d'un gaz compressible ou d'un liquide compressible.
  5. Procédé de fabrication d'un projectile explosif selon l'une des revendications 1 à 4, caractérisé en ce que de la matière explosive liquide (6) est tout d'abord introduite dans l'enveloppe flexible (7) et celle-ci est ensuite fermée de manière hermétique à l'air et en ce que l'enveloppe flexible (7) avec la matière explosive liquide (6) qu'elle contient est ensuite introduite à travers une ouverture (3) dans l'espace intérieur (5) de l'enveloppe de projectile (2) et collée avec celle-ci du côté arrière.
  6. Procédé selon la revendication 5, caractérisé en ce que la quantité de matière explosive liquide (6) est choisie de telle sorte qu'après l'introduction de la matière explosive liquide (6) dans l'espace intérieur (5) de l'enveloppe de projectile (2), il reste un espace libre (9) qui est ensuite rempli avec un élément de compensation de volume (100).
EP09713362.3A 2008-02-22 2009-02-03 Obus explosif et procédé de fabrication Not-in-force EP2245419B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810010707 DE102008010707A1 (de) 2008-02-22 2008-02-22 Sprenggeschoss und Verfahren zu seiner Herstellung
PCT/EP2009/000675 WO2009103409A1 (fr) 2008-02-22 2009-02-03 Obus explosif et procédé de fabrication

Publications (2)

Publication Number Publication Date
EP2245419A1 EP2245419A1 (fr) 2010-11-03
EP2245419B1 true EP2245419B1 (fr) 2014-01-22

Family

ID=40677753

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09713362.3A Not-in-force EP2245419B1 (fr) 2008-02-22 2009-02-03 Obus explosif et procédé de fabrication

Country Status (5)

Country Link
EP (1) EP2245419B1 (fr)
CA (1) CA2715806A1 (fr)
DE (1) DE102008010707A1 (fr)
WO (1) WO2009103409A1 (fr)
ZA (1) ZA201005625B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202020004242U1 (de) 2020-10-08 2022-01-11 Josef Zambelli Projektil eines Geschosses mit verbesserter Beschleunigung im Lauf einer Schusswaffe
DE102020006200A1 (de) 2020-10-08 2022-04-14 Josef Zambelli Verfahren zur verbesserten beschleunigung des projektils eines geschosses

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011100788A1 (de) 2011-05-06 2012-11-08 Rheinmetall Waffe Munition Gmbh Geschoss, insbesondere Sprenggeschoss
DE102015005982A1 (de) * 2015-05-08 2016-11-10 Diehl Bgt Defence Gmbh & Co. Kg Sprengladung zur Aufnahme in einer Geschosshülle sowie Geschoss
DE102016008391B4 (de) 2016-07-09 2018-05-24 Diehl Defence Gmbh & Co. Kg Geschoss

Family Cites Families (12)

* 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
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
DE10207209A1 (de) 2002-02-21 2003-09-11 Rheinmetall W & M Gmbh Verfahren zur Herstellung eines großkalibrigen Sprenggeschosses und Sprenggeschoß, hergestellt nach diesem Verfahren
DE102004045361B3 (de) * 2004-09-18 2006-05-11 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Verfahren und Vorrichtung zur Herstellung einer Hohlladung
DE202004019504U1 (de) 2004-12-17 2006-04-20 Diehl Bgt Defence Gmbh & Co. Kg Sprenggeschoss
DE102005050973A1 (de) * 2005-10-25 2007-04-26 Rheinmetall Waffe Munition Gmbh Sprenggeschoss

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202020004242U1 (de) 2020-10-08 2022-01-11 Josef Zambelli Projektil eines Geschosses mit verbesserter Beschleunigung im Lauf einer Schusswaffe
DE102020006200A1 (de) 2020-10-08 2022-04-14 Josef Zambelli Verfahren zur verbesserten beschleunigung des projektils eines geschosses

Also Published As

Publication number Publication date
CA2715806A1 (fr) 2009-08-27
DE102008010707A1 (de) 2009-08-27
EP2245419A1 (fr) 2010-11-03
ZA201005625B (en) 2011-04-28
WO2009103409A1 (fr) 2009-08-27

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