EP2520898A2 - Projectile, en particulier projectile explosif - Google Patents

Projectile, en particulier projectile explosif Download PDF

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Publication number
EP2520898A2
EP2520898A2 EP12166542A EP12166542A EP2520898A2 EP 2520898 A2 EP2520898 A2 EP 2520898A2 EP 12166542 A EP12166542 A EP 12166542A EP 12166542 A EP12166542 A EP 12166542A EP 2520898 A2 EP2520898 A2 EP 2520898A2
Authority
EP
European Patent Office
Prior art keywords
projectile
piston
diameter
hydraulic system
explosive
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.)
Withdrawn
Application number
EP12166542A
Other languages
German (de)
English (en)
Other versions
EP2520898A3 (fr
Inventor
Ulrich Steffens
Rolf Körver
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 EP2520898A2 publication Critical patent/EP2520898A2/fr
Publication of EP2520898A3 publication Critical patent/EP2520898A3/fr
Withdrawn legal-status Critical Current

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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
    • F42B12/201—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 target class
    • F42B12/204—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 target class for attacking structures, e.g. specific buildings or fortifications, ships or vehicles
    • 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
    • F42B12/22—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 with fragmentation-hull construction
    • 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
    • F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
    • F42B12/367—Projectiles fragmenting upon impact without the use of explosives, the fragments creating a wounding or lethal effect

Definitions

  • the invention is concerned with a hydrodynamic (explosive) projectile, in particular with a concrete-refractive ammunition or a penetration projectile with a high secondary effect with regard to the avoidance of collateral damage due to blast action and dispensing with detonators.
  • a hydraulic system is integrated.
  • a well-known explosive round shows the DE 10 2005 050 973 A1 on. Another is the one DE 10 2007 001 998 A1 removable. With the DE 10 2008 010 707 A1
  • an explosive projectile and a method for its production is disclosed. All are based on explosives.
  • explosive-based ammunition has the disadvantage that it develops a high blast effect and, associated with this, the generation of collateral damage.
  • In connection with detonators also arise the problem of Vorrohr- and Kochflugterrorism and the long-term danger in ignition and hit failure (dud).
  • the purely KE-based ammunition have the disadvantage of a high launch weight and a limited effect.
  • the invention has the object to show a projectile, especially an explosive projectile, which avoids collateral damage by blast effect, etc.
  • the invention is based on the idea of integrating a hydrodynamic system instead of an explosive charge into the projectile.
  • Hydraulic applications in projectiles have been known in the literature for many years. That's how it deals GB 572,732 with the integration of a hydraulic medium in a projectile. By lowering a piston, this liquid is constricted and pressed against the armor piercing means, which is thereby pressed against a projection.
  • a projectile with a hydraulic cylinder describes the US 6,675,718 B1 , This is located in the head part of the projectile.
  • a working floor is combined with a hydraulic system.
  • the impact force of the primary missile is transmitted to an internal tappet piston which is placed in an abutment of the projectile which is fitted with a hydraulic fluid, e.g. Water is filled, driven.
  • a hydraulic fluid e.g. Water is filled, driven.
  • the liquid envelope or the anvil is designed so that it tears at a defined pressure increase and fragmented.
  • These radially accelerated fragment chips then produce the intended secondary effect during the primary penetration process.
  • This effect can be further enhanced if the space between the bullet casing and liquid column casing is additionally filled with chips.
  • this liquid energy outbreak can be used as a drive principle for sub-projectiles.
  • the hydraulic effect can also be used as a brake spring post-acceleration for penetration. For this, the compressibility of liquids present in the considered pressure range is utilized. It is also possible a suitably designed spring or the mechanical use of the wedge effect for disassembly of the shell.
  • the advantages of this concept are that in addition to the normal effect of a bullet type (design of the bullet tip eg as FAP or PELE type) an all-round secondary effect is achieved.
  • the overall effect is stronger than with an explosive projectile, but without HE and without detonator.
  • the principle is independent of caliber, reinforced in the larger caliber range> 40 mm, and for all working bullets at MK, PzK, PzH but also GMW, Mortar, Pz-fist, rockets and bombs applicable.
  • the basic principle enables a simple, application and functionally reliable as well as inexpensive ammunition design.
  • the design of a projectile based on this principle of hydraulic pulse amplification can be very flexible.
  • the hydraulic fluid can be designed according to a desired compressibility.
  • liquid propellants / explosives (with less blast effect than explosives) or corresponding gels can be used.
  • this principle of hydrodynamic action can be interpreted as a projectile based purely on kinetic energy, which acts like an explosive-based bullet without having the negative properties of the explosive and does not require any electric / electronic igniters. Accordingly, it can be designed easily, functional and safe to use as well as cost-efficient.
  • the ammunition design is possible both as a full-scale and as a sub-caliber projectile on a KE basis as a HDKE projectile or as an enhancement of an HE effect as a HDHE projectile.
  • the concept presented here provides that the piston (plunger) and in particular the piston head is structurally firmly connected to the projectile wall and thus forms a closed system, so that the hydraulic system during inception and flight is inactive and is activated only on impact. In particular, no volume change of the liquid occurs during the firing process.
  • a balancing projectile or the like in particular explosive projectile with a fragmentable projectile casing, comprising a hydraulic system consisting of a piston with a piston head and an abutment.
  • the anvil is designed so that it receives a hydraulic fluid and between a projectile tip and a bullet end, in an explosive projectile at least in the region of the bursting bullet casing, is involved.
  • a conventional working projectile 10 with a projectile casing 1, as e.g. AP, FAP or ABM (also unprogrammed) is combined with a hydraulic system 2.
  • the hydraulic system 2 consists of a plunger or piston 3 with a piston head 4 and an abutment 5, which receives a hydraulic fluid 6.
  • the hydraulic system 2, in particular the anvil 5, is integrated at least in the area 1.1 of the fragmentable projectile casing 1.
  • a projectile 8 used here is designed so that a reaction force against the projectile internal piston head 4 is exerted on the impact of the primary missile 8 on a (fixed) target (not shown in detail).
  • a projectile can be omitted if it is a pure explosive projectile.
  • the piston head 3 is then driven directly into the projectile tip 9 by the force acting on it.
  • the abutment 5 of the projectile 1 filled with a hydraulic fluid (such as water) 6 is driven, the abutment 5 rupturing and the projectile casing 1 in the area 1.1 tears.
  • the effect can be increased if a splitter material 7 is provided between the projectile casing 1 and the abutment 5. This is then accelerated with the tearing of the anvil 5.
  • the diameter of the piston 3 i.e., its internal diameter
  • the diameter of the piston head 4 is correspondingly smaller than the diameter of the piston head 4.
  • the counter bearing (liquid column) 5 is designed so that it is smaller in diameter from the diameter D f than that of the piston D k .
  • the Fig. 2 shows the compression behavior of various liquids and liquid explosives under pressurization. With a pressure increase to eg 8 kbar, water is reduced to 81% and methanol to 76% of the initial volume. The behavior can be described by means of the known Tait equation of state for liquid.
  • liquid can be considered any compressible and / or decomposable material, that is to say a liquid, such as e.g. Water, a gel, glass or plastic.
  • the hydraulic effect can be exploited by means of the physical property of the compressibility of liquids which is effective in the considered pressure range, as quasi brake spring post-acceleration of the projectile head. Furthermore, this liquid energy outbreak can be used as a drive principle for sub-projectiles.

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)
  • Portable Nailing Machines And Staplers (AREA)
EP12166542.6A 2011-05-06 2012-05-03 Projectile, en particulier projectile explosif Withdrawn EP2520898A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011100788A DE102011100788A1 (de) 2011-05-06 2011-05-06 Geschoss, insbesondere Sprenggeschoss

Publications (2)

Publication Number Publication Date
EP2520898A2 true EP2520898A2 (fr) 2012-11-07
EP2520898A3 EP2520898A3 (fr) 2015-03-11

Family

ID=46149171

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12166542.6A Withdrawn EP2520898A3 (fr) 2011-05-06 2012-05-03 Projectile, en particulier projectile explosif

Country Status (2)

Country Link
EP (1) EP2520898A3 (fr)
DE (1) DE102011100788A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012019865B4 (de) 2012-10-10 2015-03-26 Rheinmetall Waffe Munition Gmbh Hydrodynamisches Sprenggeschoss
DE102012019866B4 (de) 2012-10-10 2014-04-17 Rheinmetall Waffe Munition Gmbh Hydrodynamisches Sprenggeschoss

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB572732A (en) 1941-10-03 1945-10-22 William Mosey Improvements in or relating to armour piercing bullets
US6675718B1 (en) 2002-10-17 2004-01-13 Bobby J. Parker Hydraulic cylinder projectile and method of making the same
DE102005050973A1 (de) 2005-10-25 2007-04-26 Rheinmetall Waffe Munition Gmbh Sprenggeschoss
DE102007001998A1 (de) 2007-01-08 2008-07-10 Rheinmetall Waffe Munition Gmbh Sprenggeschoss
DE102008010707A1 (de) 2008-02-22 2009-08-27 Rheinmetall Waffe Munition Gmbh Sprenggeschoss und Verfahren zu seiner Herstellung

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2601365A1 (de) * 1976-01-15 1977-07-21 Strobel Christian Ballistischer fusions-sprengkopf
DE2604757A1 (de) * 1976-01-15 1977-08-11 Strobel Christian Ballistischer fusions-sprengkopf
US4419936A (en) * 1980-04-11 1983-12-13 The United States Of America As Represented By The Secretary Of The Army Ballistic projectile
EP0146745A1 (fr) * 1983-12-22 1985-07-03 Werkzeugmaschinenfabrik Oerlikon-Bührle AG Projectile stabilisé de calibre réduit à usage multiple
US5349907A (en) * 1993-03-23 1994-09-27 Petrovich Robert M High velocity projectile
DE19700349C2 (de) * 1997-01-08 2002-02-07 Futurtec Ag Geschoß oder Gefechtskopf zur Bekämpfung gepanzerter Ziele
DE50109825D1 (de) * 2001-11-28 2006-06-22 Futurtec Ag Rotkreuz Geschosse hoher Penetrations- und Lateralwirkung mit integrierter Zerlegungseinrichtung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB572732A (en) 1941-10-03 1945-10-22 William Mosey Improvements in or relating to armour piercing bullets
US6675718B1 (en) 2002-10-17 2004-01-13 Bobby J. Parker Hydraulic cylinder projectile and method of making the same
DE102005050973A1 (de) 2005-10-25 2007-04-26 Rheinmetall Waffe Munition Gmbh Sprenggeschoss
DE102007001998A1 (de) 2007-01-08 2008-07-10 Rheinmetall Waffe Munition Gmbh Sprenggeschoss
DE102008010707A1 (de) 2008-02-22 2009-08-27 Rheinmetall Waffe Munition Gmbh Sprenggeschoss und Verfahren zu seiner Herstellung

Also Published As

Publication number Publication date
EP2520898A3 (fr) 2015-03-11
DE102011100788A1 (de) 2012-11-08

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