EP0580017B1 - Allumeur pour charges propulsives - Google Patents

Allumeur pour charges propulsives Download PDF

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Publication number
EP0580017B1
EP0580017B1 EP93110819A EP93110819A EP0580017B1 EP 0580017 B1 EP0580017 B1 EP 0580017B1 EP 93110819 A EP93110819 A EP 93110819A EP 93110819 A EP93110819 A EP 93110819A EP 0580017 B1 EP0580017 B1 EP 0580017B1
Authority
EP
European Patent Office
Prior art keywords
ignition
propellant charge
pipe
pellets
ignition system
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
EP93110819A
Other languages
German (de)
English (en)
Other versions
EP0580017A1 (fr
Inventor
Axel Dr. Pfersmann
Rainer Dipl.-Ing. Himmert
Heinrich Dipl.-Ing. Brand
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.)
Diehl Verwaltungs Stiftung
Original Assignee
Diehl GmbH and Co
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 Diehl GmbH and Co filed Critical Diehl GmbH and Co
Publication of EP0580017A1 publication Critical patent/EP0580017A1/fr
Application granted granted Critical
Publication of EP0580017B1 publication Critical patent/EP0580017B1/fr
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
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
    • F42B5/02—Cartridges, i.e. cases with charge and missile
    • F42B5/18—Caseless ammunition; Cartridges having combustible cases
    • F42B5/181—Caseless ammunition; Cartridges having combustible cases consisting of a combustible casing wall and a metal base; Connectors therefor
    • 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
    • F42C19/0823—Primers or igniters for the initiation or the propellant charge in a cartridged ammunition
    • F42C19/0826—Primers or igniters for the initiation or the propellant charge in a cartridged ammunition comprising an elongated perforated tube, i.e. flame tube, for the transmission of the initial energy to the propellant charge, e.g. used for artillery shells and kinetic energy penetrators

Definitions

  • the invention relates to an ignition system for propellant charges according to the preamble of claim 1.
  • An ignition transfer charge for a large-caliber propellant charge is known from EP-A-0 306 616.
  • This ignition transfer charge is shock-resistant because it is encased in a support tube.
  • the ignition transfer charge consists of a high-energy propellant powder, while the support tube consists of molded normal propellant powder.
  • Such a low-pressure ignition system has relatively long ignition delay times of up to a few hundred milliseconds.
  • One of the main reasons for this is the slow burning rate of the uninsulated ignition charge.
  • an igniter for a propellant charge of a rocket engine is known.
  • a perforated low-pressure tube made of plastic-reinforced glass fibers a first, inner pyrotechnic material, not specified, with a free ignition channel and a second, outer pyrotechnic material are arranged in a combustible support tube.
  • the outer pyrotechnic material consists of a mixture of black powder and propellant. It burns more slowly than the inner pyrotechnic material and supplies hot gases that contain glowing particles of black powder to extend the ignition effect. An energy contribution to the energy of the propellant charge is therefore neither intended nor intended.
  • FR-A 2 559 255 shows an igniter for an ammunition propellant charge with an ignition charge made from commercially available pellets, but uncoated, that is, without a layer of an ignition mixture.
  • the invention has for its object to provide a combustible ignition system according to EP-A-0 306 616 or US-A-3 151 447, which has a very short implementation time to ignite the propellant charge and due to high energy generation to ignite multi-part charge structures suitable is.
  • Cisive for the very short implementation time and high energy of the ignition system achieved according to the invention is a low-pressure ignition system in which the ignition mixture is based on nitrocellulose and black powder and as a thin coating on the pellets within a burst or. combustible thin-walled shrink tube sticks.
  • a propellant charge module 1 for large-caliber ammunition for example a two-part tank cannon ammunition according to FIG 9 in the form of pellets 10 and from an ignition unit 14.
  • the ignition unit 14 consists of a flame-emitting igniter 23, a perforated and combustible support tube 20, a propellant charge tube 22 and a combustible shrink tube 15.
  • the shrink tube 15 fulfills the function of a low-pressure tube.
  • 10% pellets 10.1 of the total amount of pellets 10, 10.1 of the propellant charge module 1 are arranged in an annular space 16 between the shrink tube 15 and the support tube 20.
  • pellets 10.1 are each completely surrounded by a layer 12 in a layer thickness of approximately 1/10 mm of an ignition mixture.
  • This ignition mixture bonds the pellets 10.1 to a so-called propellant charge tube 22 with an open, sieve-like structure.
  • the propellant charge tube 22 is mechanically stable and easy to handle. It fills an annular space 16 within the propellant charge 9.
  • the ignition mixture 12 consists of black powder, which is bound in nitrocellulose. About 10% nitrocellulose is dissolved in 90% acetone. All easily combustible materials, such as NC paper, and in particular the propellant charge in the form of pellets 10, 10.1, come into consideration as carrier materials.
  • the ignition mixture is also arranged as layers 13 on the support tube 20, specifically inside and outside.
  • the hot ignition gases fill the support tube 20 and blow radially through the bores 21 between the pellets 10.1 and through the cardboard 8 in the area 19.
  • the shrink tube 15 bursts.
  • the layers 12 on the pellets 10.1 are ignited almost without delay - that is, almost simultaneously.
  • the pellets 10.1 therefore burn almost simultaneously.
  • the propellant tube 22 burns reproducibly in the form of gussets 11 due to the pellets 10.1 fixedly fixed to one another and the aforementioned empty volume.
  • the circumferential, poured pellets 10 catch fire from the hot gases of the propellant tube 22.
  • the cardboard 8 in the area of the propellant charge tube 22 is cut through earlier than in the area of the poured pellets 10. The jacket tube 5 and the cover 6 then burn.
  • the one-piece ammunition 35 also has the structure described above.
  • the casing tube 5 is firmly connected to a floor 31.
  • the further function is analogous to FIGS. 1,3.
  • a two-part ammunition 1.30 has a partial load 30.
  • This part load 30 is firmly connected to the floor 31.
  • a jacket tube 5.1 and a support tube 24.25 are combustible.
  • the casing tube 5.1 is supported on the floor 31.
  • the support tube 24, which is open at the end, has a one-piece base 25.
  • the bottom 25 is firmly connected to the casing 5.1.
  • the partial charge 30 is ignited almost simultaneously with the ignition of the propellant charge module 1.
  • the ignition gases or the flames of the igniter 23 penetrate the 1-2 mm thick carton 8 and the carton 8.1 with the same thickness almost without distortion and fill the support tube 20.
  • the carton 8 or 8.1 ensures handling safety with thermal or mechanical load. This represents a considerable security advantage.
  • the further function is analogous to FIG. 1.
  • the implementation of the combustible materials mentioned then leads to the acceleration of the projectile 31 in a weapon barrel, not shown.
  • the propellant charge module 30 has a charge build-up that corresponds to the charge build-up described for FIG. 1.
  • the mechanically stable propellant charge tube 22 is an easy-to-use part with regard to the assembly of the propellant charge with respect to the modules 1 and 30 and also the ammunition 35.
  • the propellant charge tube 22 with the support tube 20 is inserted into the shrink tube 15.
  • the propellant charge tube 22 is in the shrink tube 15. This protects the glued pellets 10.1 against mechanical abrasion by vibrations, in particular by transport.
  • the ignition mixture 12, which adheres to the pellets 10.1, is thus retained on the circumference of the propellant charge tube 22.
  • the poured propellant charge 9 therefore does not lead to abrasion of the ignition mixture mentioned.
  • a projectile 32 projects into the first third of the propellant charge 9.
  • Two ignition units 14.1 are arranged eccentrically to the projectile 32 and connected to the metal sleeve 3 and possibly to the casing 5.1.
  • the igniters 23 are connected to the pole 4 via electrical lines 18.
  • the igniters 23 can also be fired separately.
  • the ignition units 14.1 basically have the structure corresponding to the ignition unit 14 according to FIG. 1. It is essential that the igniter units 14.1 penetrate almost the entire length of the propellant charge 9 in order to ignite the propellant charge 9 in a short time.
  • flame guide tubes of a centrally arranged igniter 23 can ignite the eccentrically arranged ignition units 14.1.
  • the first propellant charge module has the structure according to FIG. 1, while the subsequent propellant charge modules also have the structure according to FIG. 1 except for the metal sleeve 3 and the igniter 23.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)

Claims (10)

  1. Système d'allumage de charges propulsives comportant
    - un tube d'appui (20) combustible, qui contient un canal d'allumage libre ; et
    - un tube basse pression (15) à paroi mince, explosif ou combustible, qui contient un mélange d'allumage pyrotechnique (12), caractérisé en ce que
    - dans l'espace annulaire (16) compris entre le tube d'appui (20) et le tube basse pression (15) sont stockés des granules (10.1) en matériau de charges propulsives ;
    - ces granules (10) entourent le tube d'appui (20) combustible, perforé ;
    - ces granules (10.1) placés à l'intérieur du tube basse pression (15) sont recouverts d'un mélange d'allumage (12), ce mélange d'allumage (12) étant réalisé sous la forme d'un revêtement très mince ; et
    - ces granules (10.1) sont collés entre eux au moyen de la couche du mélange d'allumage (12) et forment un tube de charges propulsives (22) mécaniquement stable avec structure ajourée, à la manière d'un tamis.
  2. Système d'allumage selon la revendication 1, caractérisé en ce que le mélange d'allumage pyrotechnique (12) est réalisé sous la forme d'un revêtement très mince avec une épaisseur de couche d'environ 1/10 mm et est constitué de poudre noire liée à la nitrocellulose.
  3. Système d'allumage selon la revendication 2, caractérisé en ce qu'il est prévu environ 10 % de nitrocellulose et environ 90 % de poudre noire.
  4. Système d'allumage selon les revendications 1 et 2, caractérisé en ce que le tube d'appui (20) est revêtu avec le mélange d'allumage (12) sur ses faces intérieures ainsi que sur ses faces extérieures.
  5. Système d'allumage selon la revendication 1, caractérisé en ce que les granules (10.1) revêtus du mélange d'allumage (12) forment un tube de charges propulsives (22) mécaniquement stable.
  6. Système d'allumage selon la revendication 5, caractérisé en ce que le tube de charges propulsives (22) est totalement enveloppé périphériquement et frontalement par le tube basse pression, réalisé en tant que tuyau rétractable (15), et le tube de charges propulsives (22) enveloppe le tube d'appui (20) sur toute sa longueur.
  7. Charge propulsive avec un système d'allumage selon la revendication 1, caractérisée en ce que 10 % environ de la charge propulsive (9) est stocké dans l'espace annulaire (16) entre le tube rétractable (15) et le tube d'appui (20).
  8. Charge propulsive avec un système d'allumage selon les revendications 1 à 7, caractérisée en ce que dans le cas d'une munition (1, 30, 35, 40) en une partie ou en plusieurs parties, il est prévu le système d'allumage décrit.
  9. Système d'allumage selon la revendication 1, caractérisé en ce que le tube d'appui (20) comporte un détonateur (23) projetant une flamme.
  10. Charge propulsive avec un système d'allumage selon la revendication 1 et 6, caractérisée en ce qu'au moins une unité d'allumage (14), constituée d'un tuyau rétractable (15), du tuyau du tube de charges propulsives (22), du tube d'appui (20) est placée excentrée dans la munition (40).
EP93110819A 1992-07-18 1993-07-07 Allumeur pour charges propulsives Expired - Lifetime EP0580017B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4223735 1992-07-18
DE4223735A DE4223735A1 (de) 1992-07-18 1992-07-18 Anzündsystem für Treibladungen

Publications (2)

Publication Number Publication Date
EP0580017A1 EP0580017A1 (fr) 1994-01-26
EP0580017B1 true EP0580017B1 (fr) 1996-01-17

Family

ID=6463568

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93110819A Expired - Lifetime EP0580017B1 (fr) 1992-07-18 1993-07-07 Allumeur pour charges propulsives

Country Status (3)

Country Link
EP (1) EP0580017B1 (fr)
DE (2) DE4223735A1 (fr)
IL (1) IL106365A (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4318740C2 (de) * 1993-06-05 1998-03-12 Rheinmetall Ind Ag Munitionseinheit
DE4445991A1 (de) 1994-12-22 1996-06-27 Rheinmetall Ind Gmbh Anzündsystem für Treibladungen und Verfahren zur Herstellung derartiger Anzündsysteme
DE4445990C2 (de) * 1994-12-22 1997-08-21 Rheinmetall Ind Ag Patrone mit einer Patronenhülse und einem Pfeilgeschoß
DE19604656C2 (de) * 1996-02-09 1999-08-19 Diehl Stiftung & Co Treibladungsstange für eine Anzündeinheit eines Treibladungs-Moduls
DE19604655C2 (de) * 1996-02-09 1999-08-19 Diehl Stiftung & Co Anzündeinheit für eine Treibladung
FR2806789B1 (fr) * 2000-03-23 2002-06-07 Giat Ind Sa Tube allumeur pour une munition d'artillerie
DE102008026645A1 (de) 2008-06-03 2009-12-10 Diehl Bgt Defence Gmbh & Co. Kg Treibladung
US10126104B2 (en) 2015-08-26 2018-11-13 Atlantis Specialist Technologies Proprietary Limited Cartridge ammunition
DE102022131652A1 (de) * 2022-11-30 2024-06-06 Rheinmetall Waffe Munition Gmbh Anzündsystem, Treibladung und Munition

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3151447A (en) * 1960-08-12 1964-10-06 Aerojet General Co Igniter device
US3182595A (en) * 1962-07-20 1965-05-11 Harry F Hassmann Igniter assembly containing strands of benite
US3224373A (en) * 1963-05-01 1965-12-21 Aerojet General Co Igniter device for solid body of pyrotechnic material
FR2146649A6 (en) * 1968-04-10 1973-03-02 France Etat Solid-fuel rocket primer - comprising silicone elastomer body for use at very low temps
US3706278A (en) * 1971-02-25 1972-12-19 Us Army Distributed propulsion for guns
FR2559255B1 (fr) * 1984-02-03 1987-07-24 Brandt Armements Allumeur et cartouche d'allumage pour charge propulsive de projectile
DE3730530A1 (de) * 1987-09-11 1989-03-23 Rheinmetall Gmbh Anzuenduebertragungsladung fuer eine treibladung

Also Published As

Publication number Publication date
DE4223735A1 (de) 1994-01-20
IL106365A (en) 1998-12-06
EP0580017A1 (fr) 1994-01-26
DE59301445D1 (de) 1996-02-29

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