EP0154580A1 - Zündverzögerung für Sprengköpfe mit hintereinanderliegenden Hohlladungen - Google Patents

Zündverzögerung für Sprengköpfe mit hintereinanderliegenden Hohlladungen Download PDF

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Publication number
EP0154580A1
EP0154580A1 EP85400249A EP85400249A EP0154580A1 EP 0154580 A1 EP0154580 A1 EP 0154580A1 EP 85400249 A EP85400249 A EP 85400249A EP 85400249 A EP85400249 A EP 85400249A EP 0154580 A1 EP0154580 A1 EP 0154580A1
Authority
EP
European Patent Office
Prior art keywords
initiation
screen
delay
charge
passage
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
EP85400249A
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English (en)
French (fr)
Other versions
EP0154580B1 (de
Inventor
Alain Kerdraon
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.)
Cessione giat Industries
Original Assignee
Direction General pour lArmement DGA
Etat Francais
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 Direction General pour lArmement DGA, Etat Francais filed Critical Direction General pour lArmement DGA
Publication of EP0154580A1 publication Critical patent/EP0154580A1/de
Application granted granted Critical
Publication of EP0154580B1 publication Critical patent/EP0154580B1/de
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00—Details of fuzes
    • F42C19/06—Electric contact parts specially adapted for use with electric fuzes
    • 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
    • F42B12/04—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type
    • F42B12/10—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type with shaped or hollow charge
    • F42B12/16—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type with shaped or hollow charge in combination with an additional projectile or charge, acting successively on the target
    • F42B12/18—Hollow charges in tandem arrangement

Definitions

  • the present invention relates to an initiation delay for a military head comprising two formed charges mounted in tandem and initiated successively. The front charge is initiated first, then detonates the rear charge with a pre-determined delay.
  • the work relating to the optimization of the design of effective tandem charge assemblies against a set of active shielding configurations shows that the time interval between the firing of the two charges must be at least equal to 1500 us , or even 2000 us.
  • the invention therefore aims to overcome the drawbacks of the state of the art by proposing a device for delay congestion reduced and high precision.
  • the invention consists in using the screen arranged between the two charges to achieve the delay. Indeed, it has been shown that it is necessary to use a protective structure or screen to ensure the protection of the rear load when the front load is operating. It was found that this screen, under the action of the detonation of the first charge, moves towards the rear of the military head and possibly deforms. The invention therefore consists in taking advantage of the displacement of this screen to ensure the delay in operation of the rear load.
  • the initiation delay consists of the travel time of all or part of the screen between an initial position and a second determined position.
  • the initiation of the rear load is controlled by the closing of an electrical circuit caused during the passage of the screen to the second position.
  • the screen may include an electrically conductive part ensuring, during the transition to the second position, the closing of the electrical ignition circuit of the rear load.
  • the military head shown in FIG. 1 comprises a charge formed before 1 of the flat charge type and a rear forced charae 2 of the hollow charge type.
  • the two charges are placed in a fragmentable shell 3.
  • a screen 4 is placed between the two charges formed so as to protect the rear charge during the detonation of 1.a front charge.
  • the initiation of the two charges formed is done via priming systems 5 known to those skilled in the art.
  • contactors 6 are arranged between the screen 4 and the rear load 2. These contactors are connected, by means of electrical lines 7 and 8 to a source of electrical energy 9 and to the rear load initiator.
  • the screen moves towards the rear of the military head and strikes the contactors 6 which close the electrical circuit and ensures the operation of the device for initiating the rear load.
  • FIG. 2 represents a variant of FIG. 1, in this case, the contactors 6 are replaced by piezoelectric elements 10 which, upon impact by the screen 4, deliver an electrical control signal which can be used either directly to initiate the device for initiating the rear load, - either indirectly to initiate a known electronic system whose role is to supply energy to the initiating device by an auxiliary source of electricity.
  • FIG. 3 represents a military head comprising an induction coil 11 disposed between the rear load and the screen 4.
  • the screen is made up of a magnetic material and induces an electric current when it crosses the coil 11. This current, as in the case shown in the previous figure, can be used directly or indirectly to initiate the rear load.
  • the displacement of the screen must remain less than the initial distance between screen and rear load during the time interval which separates the two firings.
  • the speed of the screen is 24 m / s; thus for a desired delay of 1 ms, the screen will have to move 24 mm to operate the rear load.
  • An advantage of this device is that the phenomenon of screen 5 recoil is very reproducible, which makes it possible to obtain delay times of high precision.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Air Bags (AREA)
  • Pinball Game Machines (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
EP85400249A 1984-02-20 1985-02-14 Zündverzögerung für Sprengköpfe mit hintereinanderliegenden Hohlladungen Expired EP0154580B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8402487A FR2559896B1 (fr) 1984-02-20 1984-02-20 Retard d'initiation pour tete militaire a charges formees montees en tandem
FR8402487 1984-02-20

Publications (2)

Publication Number Publication Date
EP0154580A1 true EP0154580A1 (de) 1985-09-11
EP0154580B1 EP0154580B1 (de) 1988-01-07

Family

ID=9301165

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85400249A Expired EP0154580B1 (de) 1984-02-20 1985-02-14 Zündverzögerung für Sprengköpfe mit hintereinanderliegenden Hohlladungen

Country Status (5)

Country Link
US (1) US4606272A (de)
EP (1) EP0154580B1 (de)
CA (1) CA1268663A (de)
DE (1) DE3561364D1 (de)
FR (1) FR2559896B1 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0238715A1 (de) * 1986-02-21 1987-09-30 Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung Gefechtskopf
FR2683034A1 (fr) * 1991-10-26 1993-04-30 Deutsche Aerospace Tete de combat.
DE4126793C1 (de) * 1991-08-14 1994-05-11 Deutsche Aerospace Tandemgefechtskopf
EP0600388A1 (de) * 1992-11-28 1994-06-08 Dynamit Nobel Aktiengesellschaft Tandemgefechtskopf mit piezoelektrischen Aufschlagzündern
FR2712681A1 (fr) * 1986-08-19 1995-05-24 British Aerospace Cone de charge de projectile.
EP0677718A1 (de) * 1994-04-15 1995-10-18 Luchaire Défense S.A. Geschoss für Angriff gegen harte Ziele
FR2727513A1 (fr) * 1987-11-28 1996-05-31 Rheinmetall Gmbh Tete militaire
DE19706688C1 (de) * 1997-02-20 1998-09-24 Daimler Benz Aerospace Ag Gefechtskopf mit einem Vorwirkkörper und einem Nachwirkkörper
DE4130646C2 (de) * 1990-09-28 2000-02-03 Dynamit Nobel Ag Verfahren zum Auslösen eines Explosivkörpers

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2603375B1 (fr) * 1986-08-26 1990-07-27 Matra Manurhin Defense Munition a charges en tandem
IL81097A (en) * 1986-12-25 1991-06-10 Israel Defence Two-stage shaped charge projectile
US4793256A (en) * 1987-03-25 1988-12-27 Magnavox Government And Industrial Electronics Company Piezoelectric fuse for projectile with safe and arm mechanism
US5033382A (en) * 1987-03-25 1991-07-23 Magnavox Government And Industrial Electronics Company Piezoelectric fuse for projectile with safe and arm mechanism
US7493861B1 (en) * 1989-07-24 2009-02-24 The United States Of America As Represented By The Secretary Of The Army Tandem shaped charge warhead having a confined forward charge and a light-weight blast shield
FR2729750B1 (fr) * 1990-03-29 1997-03-21 France Etat Tete militaire a charges creuses en sequence
FR2660427B1 (fr) * 1990-03-29 1993-12-31 Giat Industries Retard d'initiation pour charges formees detonant en sequence.
US5565647A (en) * 1991-05-24 1996-10-15 Giat Industries Warhead with sequential shape charges
US5111746A (en) * 1991-06-21 1992-05-12 The United States Of America As Represented By The Secretary Of The Army Multiple stage munition
US5526752A (en) 1994-09-06 1996-06-18 Rockwell International Corporation Weapon for destruction of deeply buried and hardened targets
DE19540863B3 (de) * 1995-11-02 2013-12-05 Nexter Munitions Zündvorrichtung
SE505188C2 (sv) * 1996-03-22 1997-07-14 Bofors Ab Ammunitionsanordning i form av granat eller liknande
US6305289B1 (en) * 1998-09-30 2001-10-23 Western Atlas International, Inc. Shaped charge for large diameter perforations
FR2953009A1 (fr) 2009-11-26 2011-05-27 Nexter Munitions Tete militaire a charges en tandem
US9612095B2 (en) * 2014-12-12 2017-04-04 Schlumberger Technology Corporation Composite shaped charges
DE102023000642B3 (de) 2023-02-22 2024-01-25 Bundesrepublik Deutschland, vertr. durch das Bundesministerium der Verteidigung, vertr. durch das Bundesamt für Ausrüstung, Informationstechnik und Nutzung der Bundeswehr Gefechtskopf mit einer Vorhohlladung und einer Haupthohlladung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1091932A (fr) * 1953-01-27 1955-04-15 Bofors Ab Dispositif d'amorçage pour projectile, en particulier à charge creuse
US4004515A (en) * 1971-01-25 1977-01-25 The United States Of America As Represented By The Secretary Of The Navy Sequential jet shaped charge
FR2410243A1 (fr) * 1977-11-24 1979-06-22 Serat Perfectionnements apportes aux charges creuses

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA731987A (en) * 1966-04-12 Jersey Production Research Company Well perforating
US3320890A (en) * 1965-05-06 1967-05-23 Thomas Q Ciccone Piezo-electric detonation initiator system
BE740812A (de) * 1969-10-27 1970-07-27
FR2365774A1 (fr) * 1976-09-27 1978-04-21 Serat Perfectionnements aux chargements des projectiles
DE2847548C2 (de) * 1978-11-02 1983-03-03 Diehl GmbH & Co, 8500 Nürnberg Elektrischer Geschoßzünder
EP0040011B1 (de) * 1980-05-09 1984-08-08 EMI Limited Anordnung zum Zünden einer pyrotechnischen Ladung
US4402269A (en) * 1981-06-29 1983-09-06 The United States Of America As Represented By The Secretary Of The Navy Electric delay detonator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1091932A (fr) * 1953-01-27 1955-04-15 Bofors Ab Dispositif d'amorçage pour projectile, en particulier à charge creuse
US4004515A (en) * 1971-01-25 1977-01-25 The United States Of America As Represented By The Secretary Of The Navy Sequential jet shaped charge
FR2410243A1 (fr) * 1977-11-24 1979-06-22 Serat Perfectionnements apportes aux charges creuses

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0238715A1 (de) * 1986-02-21 1987-09-30 Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung Gefechtskopf
FR2712681A1 (fr) * 1986-08-19 1995-05-24 British Aerospace Cone de charge de projectile.
FR2727513A1 (fr) * 1987-11-28 1996-05-31 Rheinmetall Gmbh Tete militaire
DE4130646C2 (de) * 1990-09-28 2000-02-03 Dynamit Nobel Ag Verfahren zum Auslösen eines Explosivkörpers
DE4126793C1 (de) * 1991-08-14 1994-05-11 Deutsche Aerospace Tandemgefechtskopf
FR2683034A1 (fr) * 1991-10-26 1993-04-30 Deutsche Aerospace Tete de combat.
EP0600388A1 (de) * 1992-11-28 1994-06-08 Dynamit Nobel Aktiengesellschaft Tandemgefechtskopf mit piezoelektrischen Aufschlagzündern
US5415105A (en) * 1992-11-28 1995-05-16 Dynamit Nobel Aktiengesellschaft Tandem warhead with piezoelectric percussion fuses
EP0677718A1 (de) * 1994-04-15 1995-10-18 Luchaire Défense S.A. Geschoss für Angriff gegen harte Ziele
FR2718842A1 (fr) * 1994-04-15 1995-10-20 Luchaire Defense Sa Projectile destiné à agresser des cibles dures.
DE19706688C1 (de) * 1997-02-20 1998-09-24 Daimler Benz Aerospace Ag Gefechtskopf mit einem Vorwirkkörper und einem Nachwirkkörper

Also Published As

Publication number Publication date
DE3561364D1 (en) 1988-02-11
US4606272A (en) 1986-08-19
FR2559896A1 (fr) 1985-08-23
EP0154580B1 (de) 1988-01-07
FR2559896B1 (fr) 1987-09-25
CA1268663A (fr) 1990-05-08

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