EP1148314B1 - Cartouche de munition - Google Patents

Cartouche de munition Download PDF

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Publication number
EP1148314B1
EP1148314B1 EP01105852A EP01105852A EP1148314B1 EP 1148314 B1 EP1148314 B1 EP 1148314B1 EP 01105852 A EP01105852 A EP 01105852A EP 01105852 A EP01105852 A EP 01105852A EP 1148314 B1 EP1148314 B1 EP 1148314B1
Authority
EP
European Patent Office
Prior art keywords
propellant charge
charge powder
powder
case
propellant
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
EP01105852A
Other languages
German (de)
English (en)
Other versions
EP1148314A3 (fr
EP1148314A2 (fr
Inventor
Thomas Dr. Weise
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 EP1148314A2 publication Critical patent/EP1148314A2/fr
Publication of EP1148314A3 publication Critical patent/EP1148314A3/fr
Application granted granted Critical
Publication of EP1148314B1 publication Critical patent/EP1148314B1/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
    • 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
    • F42C19/0834—Arrangements of a multiplicity of primers or detonators dispersed within a propellant charge for increased efficiency
    • 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

Definitions

  • the invention relates to a cartridge with electrothermal ignition device.
  • NENA N- (2-nitroxy) -nitraminethan
  • DNDA dinitro-diaza-alkane
  • significantly higher rates of acceleration can be achieved by shootable bullets than with conventional ones propellant powders.
  • the shot gas temperature of such propellant charge powder and thus also the pipe erosion is generally lower than in known powders.
  • the high activation energy of the high-energy propellant charge powder complicates the ignition by means of pyrotechnic ignition charges.
  • the reduced ignitability of the propellant charge powder also leads to an increase of the ignition delay times and to an increased spread of the ignition times.
  • a wire-shaped conductor is traversed by such a high current that it evaporates explosively and generates a high-energy arc to ignite the propellant charge powder in the bottom region of the corresponding cartridge. The arc then ignites the corresponding propellant charge powder.
  • German Patent Application DE 199 21 379.8 proposes not passing the wire-shaped conductors directly through the propellant charge, but rather arranging them within tubes likewise made of propellant charge powder. These propellant powder tubes then form firing channels within the propellant charge structure.
  • the ignition device When the ignition device is activated, the wire-shaped conductor first evaporates, and an arc plasma channel is formed inside the respective propellant charge powder tubes. Via the plasma channels, the energy is released via radiation transport mechanisms to the environment. This release of energy leads to a rapid ignition of the propellant charge powder tubes and their fragmentation.
  • the burning fragments (hot spots) of the propellant charge powder tubes as well as the released arc radiation cause a quick and uniform lighting of the propellant charge buildup.
  • the invention has for its object to provide a cartridge in which also difficult to ignite propellants, especially NENA or DNDA propellants, can be quickly and safely ignited, the need for electrical energy to be minimized should.
  • the invention is based on the idea to use transparent propellant charge powder tubes for fast and reliable ignition.
  • the nitrocellulose powder designated as JA2 has proved to be suitable as a propellant charge powder.
  • this propellant powder In order for this propellant powder is transparent, it must not contain soot particles and the usual graphitization of the outer surface must be eliminated.
  • the radiation emitted by the plasma channels can reach the propellant charge buildup of the cartridge without great absorption losses.
  • the plasma radiation produces a change in the erosion-effective surface of the transparent propellant powder tubes, which is a significant accelerated implementation of the tubes and thus in support of the ignition process leads.
  • the exploitation of these properties results in a significant reduction in the electrical energy requirement of the plasma ignition system.
  • optically transparent propellant powder tubes reduces the need for additional electrical energy for temperature compensation of the NENA propellant charge powder over the need for non-transparent tubes.
  • a large-caliber cartridge (eg for firing from an armored weapon) referred to, which is connected to the ignition via a switch 2 with a power source 3.
  • the cartridge 1 comprises a filled with NENA or DNDA propellant charge powder 4 combustible sleeve 5 and the propellant charge shell 5 bottom side made of metal sleeve bottom 6.
  • the combustible sleeve 5 is in the region of its sleeve bottom end 7 form-fitting between an insulating molding 8 and the sleeve bottom. 6 fixed.
  • a high-voltage electrode 9 which is electrically insulated from this, is arranged centrally, which is passed through the insulating molded part 8 and connected to a metal disk 10 acting as a current distributor.
  • Three electrically conductive wires 11-13 are fastened to the current distributor 10, each of which is passed axially through a tube 14-16 made of transparent JA2 propellant charge powder (FIG. 2) and connected to an annular contact part 18 in the region of the sleeve cover 17 of the propellant charge sleeve 5 are.
  • the contact member 18 in turn contacted the lying at ground potential inner wall of the weapon, not shown.
  • the transparent firing amplifying tubes 14-16 are provided with a plurality of radial apertures 19 distributed along the length and circumference.
  • the charge buildup can be carried out both as bulk charge and as stacked or compact charge.
  • the switch 2 is closed and the power source equipped with a series of charged capacitors (at a voltage of, for example, 40 kV) is discharged within a short time.
  • the resulting discharge current leads to the electrical explosion of the wires 11-13 and to the initiation of arc discharges within the Anzündverstärkungsröhren 14-16.
  • the tubes are ignited by the arcs and reacted abruptly.
  • the resulting propellant charge gases and the released arc radiation then cause a rapid and uniform ignition of the propellant charge powder 4 located in the sleeve, which then converts together with the combustible sleeve 5.
  • Such temperature compensation by means of electrical energy can be omitted when using a temperature-independent DNDA propellant charge powder. As a result, the amount of electrical energy to be provided for the plasma ignition system is reduced.

Claims (6)

  1. Cartouche avec dispositif de mise à feu présentant les caractéristiques :
    a) la cartouche (1) comporte une douille (5) remplie au moins partiellement d'une première poudre de charge propulsive (4) et un fond de douille (6) fermant la douille (5) du côté du fond ;
    b) une électrode haute tension (9) est disposée sur le fond de douille (6) ;
    c) l'électrode haute tension (9) est connectée sur son côté tourné vers l'espace intérieur de la douille (5) à une première extrémité d'au moins un fil conducteur d'électricité (11 - 13) lequel s'étend axialement à travers la première poudre de charge propulsive (4) et qui est connecté avec sa seconde extrémité à une pièce de contact (18) dans la zone avant de la douille de charge propulsive (5) ;
    d) le fil conducteur d'électricité (11 - 13) passe à travers un tube (14 - 16) constitué d'une poudre de charge propulsive optiquement transparente au moins dans une zone partielle de la douille de charge propulsive (5) ;

    caractérisée en ce qu'il s'agit d'une poudre de charge propulsive JA2.
  2. Cartouche selon la revendication 1, caractérisée en ce qu'il s'agit dans le cas de la première poudre de charge propulsive de la poudre de charge propulsive N-(2-nitroxy)nitraminéthane (NE-NA).
  3. Cartouche selon la revendication 1, caractérisée en ce qu'il s'agit dans le cas de la première poudre de charge propulsive de poudre de charge propulsive DNDA (dinitro-diaza-alcanes).
  4. Cartouche selon l'une quelconque des revendications 1 à 3, caractérisée en ce que le tube constitué de poudre de charge propulsive optiquement transparente JA2 (14 - 16) est pourvu de plusieurs orifices radiaux (19) disposés en étant distribués sur la longueur et la circonférence.
  5. Cartouche selon l'une quelconque des revendications 1 à 4, caractérisée en ce qu'au moins trois tubes (14 - 16) s'étendent axialement à travers la poudre de charge propulsive (4) se trouvant dans la douille (5) et en ce que l'électrode haute tension (9) est configurée sur son côté tourné vers l'espace intérieur de la douille (5) comme répartiteur de courant.
  6. Cartouche selon la revendication 5, caractérisée en ce que le répartiteur de courant (10) est constitué d'un disque métallique.
EP01105852A 2000-04-22 2001-03-09 Cartouche de munition Expired - Lifetime EP1148314B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10020020A DE10020020A1 (de) 2000-04-22 2000-04-22 Patrone
DE10020020 2000-04-22

Publications (3)

Publication Number Publication Date
EP1148314A2 EP1148314A2 (fr) 2001-10-24
EP1148314A3 EP1148314A3 (fr) 2002-03-27
EP1148314B1 true EP1148314B1 (fr) 2006-02-22

Family

ID=7639737

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01105852A Expired - Lifetime EP1148314B1 (fr) 2000-04-22 2001-03-09 Cartouche de munition

Country Status (5)

Country Link
US (1) US6539874B2 (fr)
EP (1) EP1148314B1 (fr)
KR (1) KR20010098795A (fr)
DE (2) DE10020020A1 (fr)
IL (1) IL142595A0 (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001089842A1 (fr) * 2000-05-24 2001-11-29 Silverbrook Research Pty. Ltd. Joint etanche fluidique pour un assemblage de buse de jet d'encre
US7213519B2 (en) * 2002-10-29 2007-05-08 Polytech Ammunition Company Composite polymer based cartridge case having an overmolded metal cup, polymer plug base assembly
US7073447B2 (en) * 2003-02-12 2006-07-11 Bae Systems Land & Armaments L.P. Electro-thermal chemical igniter and connector
US20050188879A1 (en) * 2003-10-29 2005-09-01 Polytech Ammunition Company Lead free, composite polymer based bullet and cartridge case, and method of manufacturing
US9470485B1 (en) 2004-03-29 2016-10-18 Victor B. Kley Molded plastic cartridge with extended flash tube, sub-sonic cartridges, and user identification for firearms and site sensing fire control
DE102004039174B4 (de) * 2004-08-12 2008-02-21 Deutsch-Französisches Forschungsinstitut Saint-Louis, Saint-Louis Elektrischer Treibladungsanzünder
US7357082B1 (en) * 2005-09-27 2008-04-15 Jeffrey Racho Modified shotgun and modified shotgun shell ammunition
DE102009043491A1 (de) * 2009-09-30 2011-04-07 Rheinmetall Waffe Munition Gmbh Aktivierungseinheit für munitionsfreie Scheinziele
US8763535B2 (en) 2011-01-14 2014-07-01 Pcp Tactical, Llc Narrowing high strength polymer-based cartridge casing for blank and subsonic ammunition
US8573126B2 (en) 2010-07-30 2013-11-05 Pcp Tactical, Llc Cartridge base and plastic cartridge case assembly for ammunition cartridge
US8807008B2 (en) 2011-01-14 2014-08-19 Pcp Tactical, Llc Polymer-based machine gun belt links and cartridge casings and manufacturing method
US8869702B2 (en) 2011-01-14 2014-10-28 Pcp Tactical, Llc Variable inside shoulder polymer cartridge
WO2012097317A2 (fr) 2011-01-14 2012-07-19 Pcp Ammunition Company Llc Douille de cartouche à base de polymère de résistance élevée et son procédé de fabrication
US10197366B2 (en) 2011-01-14 2019-02-05 Pcp Tactical, Llc Polymer-based cartridge casing for blank and subsonic ammunition
USD715888S1 (en) 2012-01-13 2014-10-21 Pcp Tactical, Llc Radiused insert
KR101384214B1 (ko) * 2012-04-04 2014-04-10 국방과학연구소 능동파괴체계의 대응탄의 급속 발사를 위한 개방형 추진장치
US9921017B1 (en) 2013-03-15 2018-03-20 Victor B. Kley User identification for weapons and site sensing fire control
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
US9360285B1 (en) * 2014-07-01 2016-06-07 Texas Research International, Inc. Projectile cartridge for a hybrid capillary variable velocity electric gun
EP3821199B1 (fr) 2018-07-30 2024-04-17 Pcp Tactical, Llc Cartouche de polymère avec insert métallique à ajustement par encliquetage amélioré et rapports d'épaisseur améliorés

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2926566A (en) * 1956-11-30 1960-03-01 Walter W Atkins Device for accelerating the ignition of the propellant for a projectile
DE3009342A1 (de) * 1980-03-12 1986-06-26 Rheinmetall GmbH, 4000 Düsseldorf Patronierte munition mit einer wenigstens teilverbrennbaren treibladungshuelse
US5052302A (en) * 1990-07-26 1991-10-01 Olin Corporation Unpressurized combustible primer for cannon cartridges
US5231242A (en) * 1991-11-18 1993-07-27 Fmc Corporation Plasma injection and distribution systems
US5287791A (en) * 1992-06-22 1994-02-22 Fmc Corporation Precision generator and distributor device for plasma in electrothermal-chemical gun systems
US5759458A (en) * 1996-07-26 1998-06-02 Thiokol Corporation Process for the manufacture of high performance gun propellants
WO1998034891A1 (fr) * 1997-02-08 1998-08-13 Diehl Stiftung & Co. Poudre propulsive pour armes a canon
DE19834058C2 (de) * 1998-07-29 2001-08-23 Rheinmetall W & M Gmbh Treibladung
US6119599A (en) * 1998-08-19 2000-09-19 United Defense, L.P. Sequential arc surface injector
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

Also Published As

Publication number Publication date
US20010032563A1 (en) 2001-10-25
EP1148314A3 (fr) 2002-03-27
KR20010098795A (ko) 2001-11-08
US6539874B2 (en) 2003-04-01
DE50108966D1 (de) 2006-04-27
EP1148314A2 (fr) 2001-10-24
DE10020020A1 (de) 2001-10-25
IL142595A0 (en) 2002-03-10

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