EP1577635B1 - Zündeinrichtung für zwei Explosivladungen und Gefechtskopf der eine solchen Zündeinrichtung verwendet - Google Patents

Zündeinrichtung für zwei Explosivladungen und Gefechtskopf der eine solchen Zündeinrichtung verwendet Download PDF

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Publication number
EP1577635B1
EP1577635B1 EP05290406A EP05290406A EP1577635B1 EP 1577635 B1 EP1577635 B1 EP 1577635B1 EP 05290406 A EP05290406 A EP 05290406A EP 05290406 A EP05290406 A EP 05290406A EP 1577635 B1 EP1577635 B1 EP 1577635B1
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EP
European Patent Office
Prior art keywords
explosive
booster
relay
detonator
charge
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.)
Expired - Lifetime
Application number
EP05290406A
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English (en)
French (fr)
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EP1577635A1 (de
Inventor
Jean-Paul Duparc
Michel Vives
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.)
KNDS Ammo France SA
Original Assignee
Nexter Munitions SA
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Filing date
Publication date
Application filed by Nexter Munitions SA filed Critical Nexter Munitions SA
Publication of EP1577635A1 publication Critical patent/EP1577635A1/de
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Publication of EP1577635B1 publication Critical patent/EP1577635B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F42C19/08—Primers; Detonators
    • F42C19/095—Arrangements of a multiplicity of primers or detonators, dispersed around a warhead, one of the primers or detonators being selected for directional detonation effects
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00—Details of fuzes
    • F42C19/08—Primers; Detonators
    • F42C19/0838—Primers or igniters for the initiation or the explosive charge in a warhead
    • F42C19/0842—Arrangements of a multiplicity of primers or detonators, dispersed within a warhead, for multiple mode selection

Definitions

  • the technical field of the invention is that of devices for the initiation of at least two explosive charges from a first detonator.
  • an explosive charge for ammunition comprising an explosive composition and pyrotechnic relays arranged at different points of initiation of the pyrotechnic composition.
  • the relays are all connected to a primer by cords all having the same length to allow simultaneous initiation.
  • This solution is poorly suited to the design of an initiation device for a munition, for example for a warhead generating chips.
  • the object of the invention is to provide a simple, compact and reliable initiation device of a simple design that makes it possible to initiate two explosive charges (in particular a munition) from a first detonator.
  • the invention relates to a device for initiating at least two explosive charges from a first detonator, characterized in that it comprises at least a first pyrotechnic relay which is initiated by the detonator, first relay which initiates on the one hand a first explosive charge by the projection thereon of an envelope and which is connected on the other hand to a second explosive charge by at least one detonation wave transmission relay, the path of the projected envelope having a length such that the initiation of the two explosive charges is simultaneous.
  • the first relay is cylindrical and surrounded by an envelope also cylindrical, the projection of the envelope being through an annular cavity arranged in the first explosive charge.
  • these focused spray heads are obtained by simultaneously initiating the head at both ends thereof.
  • an initiation is simultaneous when the difference between the two initiations is less than or equal to 2 micro seconds.
  • Known solutions implement initiators arranged at each of the end faces of the warhead and controlled from a single electronic priming device.
  • the invention therefore also aims to provide a military head design simple, compact and reliable and, thanks to the initiation device according to the invention can optionally operate in two different modes.
  • the subject of the invention is also a splinter-generating warhead using an initiation device as described above, characterized in that it comprises a block of a charging explosive which can be initiated at one or the other of its ends by a first and / or a second explosive charge initiation, the first initiation charge can be initiated by the projection of a casing surrounding the first relay and the second explosive initiation charge can also be initiated via at least one transmission relay detonation wave connecting it to the first relay.
  • the explosive charge unit may include an axial channel within which the detonation wave transmission relay will pass.
  • the warhead generating chips according to the invention may comprise an insulating sheath disposed in the axial channel and surrounding the transmission relay.
  • the head may include a first detonator arranged so as to initiate the first relay, the first detonator that will be activated by a firing rocket.
  • the first explosive initiation charge may be directly initiated by a second ignition means separate from the first relay.
  • the second priming means may comprise at least three detonator primers regularly distributed angularly and arranged opposite a ring of the first explosive charge.
  • a military head 1 comprises a block 2 of a charging explosive disposed in a casing 3 generating shards.
  • the envelope 3 is closed at each end by a cover 4a, 4b.
  • the explosive block 2 comprises at each of its ends a cavity 5a, 5b which receives an explosive charge of initiation 6a, 6b.
  • the block 2 further comprises an axial channel 7 which connects the two cavities 5a and 5b.
  • the first cavity 5a contains a tablet of a first explosive initiation charge 6a.
  • This first charge is constituted for example by a relatively insensitive explosive such as an explosive combining triamino trinitrobenzene and a thermoplastic binder, explosive as described by the FR2671549 .
  • This first load 6a comprises a cylindrical housing 8 inside which is placed a first detonation relay 9a, itself arranged opposite a first detonator 10a.
  • Relay 9a will be constituted for example by an explosive combining hexogen and wax. This relay is cylindrical and coaxial with the housing 8.
  • the detonator 10a is connected by a wired connection to a firing rocket 14.
  • the first relay 9a is surrounded by a cylindrical shell 11, for example metal, and which is intended to be projected radially against the inner cylindrical wall of the housing 8 during the initiation of the first relay 9a.
  • the space 12 separating the envelope 11 and the first load 6a may be empty or filled by an annular layer of compressible synthetic foam.
  • the projection of the envelope 11 thus ensures the initiation of the first load 6a by the first relay 9a with a delay which depends on the diameter of the housing 8, the nature and the thickness of the envelope 11 and the presence or absence of a compressible material inside the space 12.
  • a washer 21 (for example metal) is interposed between the end of the relay 9a and the explosive initiation charge 6a. This washer makes it possible to avoid a direct axial initiation of the load 6a by the relay 9a.
  • the second explosive initiation charge 6b has the same composition as the first charge 6a. It is also initiated by a second detonation relay 9b which is itself initiated by the first relay 9a and through a detonation wave transmission relay 13, interposed between the two relays 9a and 9b.
  • Transmission relays are well known to those skilled in the art. They generally comprise a plastic tube 13a containing a thin layer of explosive and carrying at each end a relay 13b, 13c.
  • cords provide a detonation wave transmission between two relays with a speed of the order of 7000 m / s.
  • the cord 13 is separated from the explosive block 2 by an insulating sheath 15 which is arranged in the axial channel 7 and which surrounds the transmission relay 13.
  • This sheath is made for example of plastic. Its function is to protect the explosive block 2 against projections from the cord 13.
  • the first explosive initiation charge 6a can be directly initiated by a second ignition means separate from the first relay 9a.
  • This second priming means here comprises at least three detonator primers 10b, uniformly distributed angularly, and arranged facing a ring 16 of the first explosive charge 6a.
  • the three peripheral detonators 10b are worn (just like the first detonator 10a) by a support 17 secured to the cover 4a. They are connected (like the detonator 10a) to the fuse rocket 14 by wired links.
  • the figure 2a shows a functioning, of the military head 1 in "sheaf of focused flashes" mode.
  • the firing rocket then controls the initiation of the axial detonator 10a.
  • the first relay 9a is then initiated and it initiates in turn the second explosive charge 6b through the transmission relay 13 and the second relay 9b.
  • the initiation of the first relay 9a causes the envelope 11 to be projected through the space 12.
  • This envelope impacts against the internal cylindrical surface of the housing 8. The shock then causes the initiation of the first explosive charge 6a.
  • the projection speed of the envelope 11 is of the order of 2000 m / s while the detonation speed through the transmission relay 13 and the second relay 9b is of the order of 7000 m / s.
  • the path to be traveled by the projected envelope 11 is much smaller than the path to be traveled by the detonation wave driven by the axial relay 13.
  • initiation of two charges is simultaneous when the difference between the two initiations is less than or equal to 2 micro seconds.
  • the explosive block 2 is initiated at both ends and two detonation wave fronts 18a and 18b propagate in the explosive block 2 in directions converging towards a median plane 19, leading to a projection of the splinters of the envelope 3 towards this median plane 19 (the arrows E schematize the projection speeds of the chips).
  • the figure 2b shows the operation of the military head 1 in "scattered sheaf" mode.
  • the firing rocket 14 then controls the initiation of the ring of peripheral detonators 10b.
  • detonators then directly initiate the first explosive charge 6a.
  • the first relay 9a is not initiated.
  • a single detonation wavefront 18c then progresses in the explosive block 2. This results in a dispersion of the fragments in a relatively homogeneous manner in a cylindrical volume around the axis 20 of the warhead.
  • peripheral detonators 10b by a priming device having only one axial detonator 10a and a movable screen (not shown) that can be placed in the housing 8, interposed between the envelope 11 and the first explosive charge 6a.
  • the detonator When the detonator is initiated, it then controls the initiation of the second explosive charge 6b via the transmission relay 13 and the second relay 9b.
  • the envelope 11 can not be projected on the first explosive charge 6a.
  • the explosive block 2 is thus initiated only from one end by the second explosive charge 6b.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Fire Alarms (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Claims (8)

  1. Vorrichtung, welche die Initiierung von wenigstens zwei Explosivladungen (6a, 6b) ausgehend von einem ersten Schlagzünder (10a) ermöglicht, wobei die Vorrichtung dadurch gekennzeichnet ist, dass sie wenigstens ein erstes pyrotechnisches Relais (9a) umfasst, das durch den Schlagzünder (10a) initiiert werden kann, wobei das erste Relais einerseits eine erste Explosivladung (6a) durch das Wegschleudern einer Hülle (11) auf diese initiiert und andererseits mit einer zweiten Explosivladung (6b) durch wenigstens ein Relais (13) zur Übertragung von Detonationswellen verbunden ist, wobei die Strecke der weggeschleuderten Hülle (11) eine derartige Länge aufweist, dass die Initiierung der beiden Explosivladungen (6a, 6b) gleichzeitig ist.
  2. Vorrichtung zur Initiierung nach Anspruch 1, dadurch gekennzeichnet, dass das erste Relais (9a) zylindrisch ist und dass es von einer ebenfalls zylindrischen Hülle (11) umgeben ist, wobei das Wegschleudern der Hülle durch einen ringförmigen Hohlraum (12) erfolgt, der in der ersten Explosivladung (6a) angelegt ist.
  3. Splitter erzeugender Gefechtskopf (1), der eine Vorrichtung zur Initiierung nach einem der vorhergehenden Ansprüche verwendet, wobei der Kopf dadurch gekennzeichnet ist, dass er einen Block (2) einer Explosivladung umfasst, der an dem einen oder dem anderen seiner Enden von einer ersten (6a) und /oder zweiten Explosivladung zur Initiierung (6b) initiiert werden kann, wobei die erste Initiierungsladung (6a) durch das Wegschleudern einer das erste Relais (9a) umgebenden Hülle (11) initiiert werden kann und die zweite Explosivladung zur Initiierung (6b) außerdem mit Hilfe wenigstens eines Relais (13) zur Übertragung von Detonationswellen, welches mit dem ersten Relais (9a) verbunden ist, initiiert werden kann.
  4. Splitter erzeugender Gefechtskopf nach Anspruch 3, dadurch gekennzeichnet, dass der Block aus Explosivladung (2) einen axialen Kanal (7) umfasst, in dessen Inneren das Relais (13) zur Übertragung von Detonationswellen verläuft.
  5. Splitter erzeugender Gefechtskopf nach Anspruch 4, dadurch gekennzeichnet, dass er einen isolierenden Mantel (15) umfasst, der in dem axialen Kanal (7) angeordnet ist und das Relais (13) zur Übertragung von Detonationswellen umgibt.
  6. Splitter erzeugender Gefechtskopf nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, dass er einen ersten Schlagzünder (10a) umfasst, der derartig angeordnet ist, dass er das erste Relais (9a) initiieren kann, wobei der erste Schlagzünder von einem Initialzünder (14) betätigt wird.
  7. Splitter erzeugender Gefechtskopf nach Anspruch 6, dadurch gekennzeichnet, dass die erste Explosivladung zur Initiierung (6a) von einem zweiten Initialzünder (10b), der vom ersten Relais (9a) verschieden ist, direkt initiiert werden kann.
  8. Splitter erzeugender Gefechtskopf nach Anspruch 7, dadurch gekennzeichnet, dass das zweite Zündmittel wenigstens drei Schlagzünder (10b) umfasst, die gleichmäßig über den Umfang verteilt sind und gegenüber einem Kranz (16) der ersten Explosivladung (6a) angeordnet ist.
EP05290406A 2004-03-18 2005-02-23 Zündeinrichtung für zwei Explosivladungen und Gefechtskopf der eine solchen Zündeinrichtung verwendet Expired - Lifetime EP1577635B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0402890 2004-03-18
FR0402890A FR2867848B1 (fr) 2004-03-18 2004-03-18 Dispositif d'initiation de deux charges explosives et tete militaire mettant en oeuvre un tel dispositif d'initiation

Publications (2)

Publication Number Publication Date
EP1577635A1 EP1577635A1 (de) 2005-09-21
EP1577635B1 true EP1577635B1 (de) 2010-05-26

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EP05290406A Expired - Lifetime EP1577635B1 (de) 2004-03-18 2005-02-23 Zündeinrichtung für zwei Explosivladungen und Gefechtskopf der eine solchen Zündeinrichtung verwendet

Country Status (6)

Country Link
US (1) US20050241521A1 (de)
EP (1) EP1577635B1 (de)
AT (1) ATE469334T1 (de)
DE (1) DE602005021420D1 (de)
ES (1) ES2346663T3 (de)
FR (1) FR2867848B1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2896577B1 (fr) * 2006-01-24 2010-08-20 Giat Ind Sa Dispositif d'amorcage pour charge multi modes
DE102006018687A1 (de) * 2006-04-21 2007-11-08 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Umschaltbare Ladung
DE102019126466A1 (de) * 2019-10-01 2021-04-01 Rheinmetall Waffe Munition Gmbh Wirkkörper und Verfahren zum Zünden eines Wirkkörpers

Family Cites Families (20)

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US481585A (en) * 1892-08-30 Mole-trap
US4188884A (en) * 1964-07-27 1980-02-19 The United States Of America As Represented By The Secretary Of The Navy Water reactive underwater warhead
US3447463A (en) * 1967-05-01 1969-06-03 Arthur Alfred Lavine Dual ignition explosive arrangement
US4745864A (en) * 1970-12-21 1988-05-24 Ltv Aerospace & Defense Company Explosive fragmentation structure
US3853059A (en) * 1971-01-11 1974-12-10 Us Navy Configured blast fragmentation warhead
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US4282814A (en) * 1974-12-20 1981-08-11 The United States Of America As Represented By The Secretary Of The Navy Dual-end warhead initiation system
US4145972A (en) * 1976-12-17 1979-03-27 The United States Of America As Represented By The Secretary Of The Navy Dual-mode warhead initiation system
US4160412A (en) * 1977-06-27 1979-07-10 Thomas A. Edgell Earth fracturing apparatus
DE2904338C2 (de) * 1979-02-06 1982-05-13 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Verfahren zum Zerstören von Betonwänden o.dgl. Gegenständen aus ähnlichem Material durch Sprengeinwirkungen
US4291627A (en) * 1979-11-27 1981-09-29 General Electric Company Electrical fuze with a plurality of modes of operation
FR2560375B1 (fr) * 1983-03-09 1986-10-03 Saint Louis Inst Engin explosif a fragmentation et focalisation des eclats
FR2550857B1 (fr) * 1983-08-16 1987-01-23 Matra Charge militaire explosive
US4823701A (en) * 1984-09-28 1989-04-25 The Boeing Company Multi-point warhead initiation system
US4662281A (en) * 1984-09-28 1987-05-05 The Boeing Company Low velocity disc pattern fragment warhead
US4815385A (en) * 1987-12-16 1989-03-28 The United States Of America As Represented By The Secretary Of The Army Blast focusing method and apparatus
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US5698814A (en) * 1995-03-10 1997-12-16 The United States Of America As Represented By The Secretary Of The Air Force Hard target penetrator with multi-segmenting casing cutter
DK1316774T3 (da) * 2001-11-28 2006-10-09 Rheinmetall Waffe Munition Projektiler med höj penetrations- og lateralvirkning med integreret sönderdelingsindretning
US6622632B1 (en) * 2002-03-01 2003-09-23 The United States Of America As Represented By The Secretary Of The Navy Polar ejection angle control for fragmenting warheads

Also Published As

Publication number Publication date
ATE469334T1 (de) 2010-06-15
EP1577635A1 (de) 2005-09-21
ES2346663T3 (es) 2010-10-19
DE602005021420D1 (de) 2010-07-08
FR2867848B1 (fr) 2006-04-28
US20050241521A1 (en) 2005-11-03
FR2867848A1 (fr) 2005-09-23

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