EP1286127B1 - Cartouche - Google Patents

Cartouche Download PDF

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Publication number
EP1286127B1
EP1286127B1 EP02012973A EP02012973A EP1286127B1 EP 1286127 B1 EP1286127 B1 EP 1286127B1 EP 02012973 A EP02012973 A EP 02012973A EP 02012973 A EP02012973 A EP 02012973A EP 1286127 B1 EP1286127 B1 EP 1286127B1
Authority
EP
European Patent Office
Prior art keywords
conductive layer
electrically conductive
cartridge
cartridge according
ignition
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 - Fee Related
Application number
EP02012973A
Other languages
German (de)
English (en)
Other versions
EP1286127A1 (fr
Inventor
Hans-Karl Dr. Haak
Alexei Dr. Voronov
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 W&M GmbH
Original Assignee
Rheinmetall W&M 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 W&M GmbH filed Critical Rheinmetall W&M GmbH
Publication of EP1286127A1 publication Critical patent/EP1286127A1/fr
Application granted granted Critical
Publication of EP1286127B1 publication Critical patent/EP1286127B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • F42B5/08—Cartridges, i.e. cases with charge and missile modified for electric ignition
    • 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
    • F42C19/12—Primers; Detonators electric

Definitions

  • the invention relates to a cartridge with a propellant charge sleeve containing a charge and an electrothermal igniter DE 199 36 650 describes one such cartridge.
  • a cartridge is known in which the igniter consists of several in the longitudinal direction the cartridge extends axially symmetrically arranged ignition channels, wherein each ignition channel comprises a powder tube, which on its inner surface with an electrically conductive layer is provided. If the respective conductive layer becomes Ignition of the charge connected to an energy supply system, so it should suddenly evaporate, and inside the corresponding powder tube is an arc plasma channel generated, through which the further flow of electricity takes place. This is energy with high performance emitted to the environment via radiation transport mechanisms, causing it to rapid ignition of the propellant tubes and their fragmentation occurs. The burning fragments of the propellant tubes as well as the released arc radiation then cause the propellant powder to ignite quickly and evenly.
  • the present invention has for its object a cartridge of the aforementioned Specify the type in which a uniform and symmetrical lighting in the Cargo space of the corresponding weapon is possible without the need for additional energy supply systems required are.
  • the invention is essentially based on the idea of decoupling the arcs in that instead of a uniform, electrically conductive layer in each powder tube is made up of lozenges, rectangles, circles or Oval existing, flatly arranged conductive structure in or outside on each powder tube is arranged, which has the function of decoupling resistors electrically.
  • decoupling resistors electrically.
  • the electrically conductive layer can be applied directly to the inner or outer surface of each Powder tube are applied. But it can also be a film pad on the inner or outer surface of the powder tube may be provided, on which the electrical conductive layer is applied.
  • the film can be made from a commercially available Plastic, preferably made of polyester or polyethylene.
  • the evaporated Structure is preferably made of aluminum or copper.
  • the several parallel, preferably three, series connections interconnected decoupling resistors interconnected decoupling resistors.
  • the length of the ignition channels can be 50 to 400 mm, preferably 200 to 300 mm.
  • the electrically conductive layer is arranged on the inner surface of the powder tube, adjoins the inside conductive layer directly on another powder tube or powder rod. This can the loading density in the cartridge can be increased even further.
  • Fig. 1 is a large-caliber cartridge (e.g. for firing from an armored weapon) referred to, which is connected to an energy supply system 2 for ignition.
  • the corresponding Gun in which the cartridge 1 is located has been used for reasons of clarity not shown.
  • the cartridge 1 comprises a sleeve 4 filled with a propellant charge 3 from a combustible Material and a bottom of the propellant charge sleeve 4, made of metal existing sleeve base 5.
  • a high-voltage electrode which is electrically insulated from it 6 arranged with a metal disk 7 acting as a current distributor connected is.
  • each of the ignition channels 9 comprises a powder tube 10, which on its inner surface with an electrical made of copper conductive layer 11 is provided.
  • the layer 11 is on the metal disc 7 facing side with this electrically connected and consists of three parallel Series connections 12-14 diamond-shaped areas 15 (Fig.3).
  • the electrically conductive layers 11 In the area of the sleeve cover 16 of the propellant charge sleeve 4 are the electrically conductive layers 11 with an in 1 only schematically indicated annular contact part 17, which in turn contacts the inner wall of the weapon, not shown, which is at ground potential.
  • a switch 18 of the energy supply system 2 is closed (Fig.1) and a series of charged capacitors 19 of the power supply system 2 e.g. discharge suddenly at a voltage of up to 40 kV.
  • the one that occurs Discharge current leads to an electrical explosion of the connecting bridges 20 (FIG. 3) between the individual diamonds 15.
  • Arcs 21 form at these points (Fig.4) by the decoupling resistors 15, which through the diamond-shaped areas are formed, are decoupled from each other. If the current continues to flow erode more and more parts of the diamond-shaped areas 15 so that the arcs 21st become longer and longer (Fig. 5).
  • the powder tubes 10 are ignited by the arcs 21 and suddenly torn apart.
  • the flying fragments of the powder tubes 10 and The released arc radiation then causes a quick and even ignition the propellant charge 3 located in the propellant charge sleeve 4, which together then implemented with the combustible propellant charge sleeve 4.
  • FIG. 6 shows a further exemplary embodiment of the invention, in which the 22nd designated ignition channel in addition to the first powder tube 10 with arranged on the inside electrically conductive layer 11 (e.g. with a diamond-shaped structure) on the inside Layer 11 comprises directly adjacent powder rod 23.
  • the 22nd designated ignition channel in addition to the first powder tube 10 with arranged on the inside electrically conductive layer 11 (e.g. with a diamond-shaped structure) on the inside Layer 11 comprises directly adjacent powder rod 23.
  • the powder rod can be replaced by another powder tube. It also has to six ignition channels are not necessarily used. With small calibers e.g. three ignition channels arranged symmetrically in the cargo space are sufficient.
  • the electrically conductive areas which the decoupling resistors define, not necessarily be diamond-shaped. Others are also conceivable Shapes of a polygon or a round geometry (circle, oval etc.), if between these areas are conductive bridges, which with a corresponding current flow break up explosively.
  • the decoupling resistors are of this type shaped that there are different layer thicknesses in the different areas of the respective rhombus, rectangle, circle or oval.
  • the different Metal thicknesses also define the properties of the decoupling resistors and can also be used to determine certain resistance values of the network structure adjust.
  • Corresponding exemplary embodiments can be found in FIGS. 7-9.
  • there 24 are a substrate (plastic carrier film), 11 the electrically conductive layer, with 15 the area defining the respective resistance (e.g. diamond-shaped) and with 20 denotes the respective connecting bridge.

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

Claims (9)

  1. Cartouche avec une douille de charge propulsive (4) contenant une charge (3) et un dispositif électrothermique d'allumage présentant les caractéristiques suivantes :
    a) dans la charge (3) sont prévus plusieurs canaux d'allumage (9) disposés dans une symétrie axiale et s'étendant dans la direction de l'axe longitudinal (8) de la cartouche (1), lesquels peuvent être reliés à un système d'alimentation en énergie (2) ;
    b) chaque canal d'allumage (9) comprend au moins un premier tube à poudre (10) qui est pourvu, sur sa surface intérieure ou extérieure, d'une couche (11) électriquement conductrice s'étendant dans la direction de l'axe longitudinal (8) de la cartouche (1) ;
    caractérisée en ce que la couche (11) électriquement conductrice présente une structure (11) qui forme au moins un circuit série (12-14) de résistances de découplage (15) reliées électriquement entre elles, de sorte qu'après activation du système d'alimentation en énergie (2) par le courant qui circule à travers la structure (11), plusieurs arcs électriques (21) se forment en raison de la surchauffe locale entre des résistances de découplage (15) voisines.
  2. Cartouche selon la revendication 1, caractérisée en ce que les résistances de découplage (15) sont formées par des zones en nid d'abeille, circulaires ou ovales, de la couche (11) électriquement conductrice.
  3. Cartouche selon la revendication 1 ou 2, caractérisée en ce que la couche (11) électriquement conductrice est en aluminium ou en cuivre.
  4. Cartouche selon l'une des revendications 1 à 3, caractérisée en ce que sur la surface intérieure ou extérieure du premier tube à poudre (10) est disposée une feuille plastique sur laquelle est vaporisée la couche (11) électriquement conductrice.
  5. Cartouche selon l'une des revendications 1 à 4, caractérisée en ce que chaque canal d'allumage (9) comporte au moins trois circuits série (12-14) de résistances de découplage (15) reliées entre elles.
  6. Cartouche selon l'une des revendications 1 à 5, caractérisée en ce que dans la charge (3) sont disposés au moins trois canaux d'allumage (9) à symétrie axiale.
  7. Cartouche selon l'une des revendications 1 à 6, caractérisée en ce que la longueur des canaux d'allumage (9) est de 50 à 400 mm, de préférence de 200 à 300 mm.
  8. Cartouche selon l'une des revendications 1 à 7, caractérisée en ce que sur la surface intérieure du premier tube à poudre (10) est disposée au moins une couche (11) électriquement conductrice s'étendant dans la direction de l'axe longitudinal (8), et en ce qu'à cette couche (11) fait suite directement côté intérieur un deuxième tube à poudre ou une tige à poudre (23).
  9. Cartouche selon l'une des revendications 1 à 8, caractérisée en ce que les zones (15) de la couche (11) électriquement conductrice, réalisées en nid d'abeille, rectangulaires, circulaires ou ovales, présentent chacune une épaisseur et/ ou une forme différente.
EP02012973A 2001-08-18 2002-06-12 Cartouche Expired - Fee Related EP1286127B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10140599 2001-08-18
DE10140599A DE10140599A1 (de) 2001-08-18 2001-08-18 Patrone

Publications (2)

Publication Number Publication Date
EP1286127A1 EP1286127A1 (fr) 2003-02-26
EP1286127B1 true EP1286127B1 (fr) 2004-06-09

Family

ID=7695899

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02012973A Expired - Fee Related EP1286127B1 (fr) 2001-08-18 2002-06-12 Cartouche

Country Status (3)

Country Link
US (1) US6745697B2 (fr)
EP (1) EP1286127B1 (fr)
DE (2) DE10140599A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2256145C2 (ru) * 2002-11-20 2005-07-10 Радченко Михаил Юрьевич Способ изготовления пули, пуля, изготовленная по способу, и боеприпас с пулей
US8146502B2 (en) * 2006-01-06 2012-04-03 Armtec Defense Products Co. Combustible cartridge cased ammunition assembly
US7913625B2 (en) * 2006-04-07 2011-03-29 Armtec Defense Products Co. Ammunition assembly with alternate load path
US8215237B2 (en) * 2006-07-10 2012-07-10 Raytheon Company Methods and apparatus for projectile data link system
SE533046C2 (sv) * 2008-04-01 2010-06-15 Bae Systems Bofors Ab Sätt för elektrisk övertändning och förbränning av drivladdning, samt divladdning och ammunitionsskott i enlighet därmed
US9117071B2 (en) * 2009-06-03 2015-08-25 Apple Inc. Methods and apparatuses for secure compilation
US8677329B2 (en) * 2009-06-03 2014-03-18 Apple Inc. Methods and apparatuses for a compiler server
ITRM20120433A1 (it) * 2012-09-11 2014-03-12 Salvatore Tedde Dispositivo d'innesco combustibile per munizioni di grosso calibro
US10801818B2 (en) * 2013-04-26 2020-10-13 Dana Raymond Allen Method and device for micro blasting with reusable blasting rods and electrically ignited cartridges

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5549046A (en) * 1994-05-05 1996-08-27 General Dynamics Land Systems, Inc. Plasma generator for electrothermal gun cartridge
US5945623A (en) * 1994-10-26 1999-08-31 General Dynamics Armament Systems, Inc. Hybrid electrothermal gun with soft material for inhibiting unwanted plasma flow and gaps for establishing transverse plasma discharge
DE19936650C2 (de) * 1999-05-10 2002-10-24 Rheinmetall W & M Gmbh Patrone
SE517704C2 (sv) 1999-05-10 2002-07-09 Tzn Forschung & Entwicklung Patron med elektrotermisk tändanordning
SE517737C2 (sv) 1999-05-11 2002-07-09 Tzn Forschung & Entwicklung Patron med elektrotermisk antändningsanordning
DE19936649C2 (de) * 1999-05-11 2002-11-07 Rheinmetall W & M Gmbh Patrone
FR2807610B1 (fr) * 2000-04-11 2002-10-11 Giat Ind Sa Torche a plasma incorporant un fusible d'amorcage reactif et tube allumeur integrant une telle torche

Also Published As

Publication number Publication date
EP1286127A1 (fr) 2003-02-26
DE50200509D1 (de) 2004-07-15
US20030033953A1 (en) 2003-02-20
DE10140599A1 (de) 2003-03-06
US6745697B2 (en) 2004-06-08

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