EP0754927B1 - System zum Zünden einer Treibladung insbesondere für Feldgeschütze und sein Herstellungsverfahren - Google Patents

System zum Zünden einer Treibladung insbesondere für Feldgeschütze und sein Herstellungsverfahren Download PDF

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Publication number
EP0754927B1
EP0754927B1 EP96401512A EP96401512A EP0754927B1 EP 0754927 B1 EP0754927 B1 EP 0754927B1 EP 96401512 A EP96401512 A EP 96401512A EP 96401512 A EP96401512 A EP 96401512A EP 0754927 B1 EP0754927 B1 EP 0754927B1
Authority
EP
European Patent Office
Prior art keywords
tube
binder
charge
priming
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 - Lifetime
Application number
EP96401512A
Other languages
English (en)
French (fr)
Other versions
EP0754927A1 (de
Inventor
Bernard Brion
Claude Julien
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.)
Giat Industries SA
Original Assignee
Giat Industries SA
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 Giat Industries SA filed Critical Giat Industries SA
Publication of EP0754927A1 publication Critical patent/EP0754927A1/de
Application granted granted Critical
Publication of EP0754927B1 publication Critical patent/EP0754927B1/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
    • F42C19/0823—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
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
    • C06C9/00—Chemical contact igniters; Chemical lighters
    • 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
    • F42B5/38—Separately-loaded propellant charges, e.g. cartridge bags
    • 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
    • F42C19/0803—Primers; Detonators characterised by the combination of per se known chemical composition in the priming substance

Definitions

  • the invention relates to an ignition system.
  • a propellant charge especially for ammunition field artillery, including a tube in one combustible material, the inner wall of which is lined with an ignition charge which delimits a channel central inside the tube.
  • the propellant charge of artillery ammunition usually consists of a stack of fuel containers containing said charge that is initiated using a means of flame transmission which is formed by the charge above ignition. So each container must either equipped with a very rapid ignition system between the ignition charge and propellant charge.
  • Ignition systems for propellant charge are notably described in documents WO-8601584 and EP-A-475 207 each of these documents forming the basis of the preamble of claim 1.
  • the charge is made up of annular pellets assembled or stacked in a tube.
  • Each tablet is manufactured by compression, which requires the use of a powder (boron powder / potassium nitrate) with a small particle size in order to obtain cohesion and correct attire.
  • a powder boron powder / potassium nitrate
  • inflammation of a powder spreads all the more quickly as this one is not tightly packed on the one hand, and that a small particle size results in significant formation of gas harmful to the quality of the ignition on the other hand.
  • the ignition transmission speed by such lozenges is therefore relatively small and in consequently, not sufficiently efficient.
  • small particle size including a grain size between about 0.1 and 0.5 mm, and a speed of weak transmission of the order of a few milliseconds.
  • the density of these pellets is relatively large, so we have to incorporate spacers of combustible material between the pellets to respect a mass ratio functional between ignition charge and charge propellant.
  • the system ignition includes a compressed charge consisting of grains of powder mixed with a solvent, such as butylacetate.
  • a solvent such as butylacetate.
  • the assembly is then compressed to obtain a tubular element which is then introduced in a central hole of the propellant charge and maintained either by friction or by bonding.
  • This system presents the disadvantages of the indicated compressed loads previously, since a powder is used necessarily of small particle size and obtained by compression.
  • the object of the invention is to design a ignition system which is simple to make and inexpensive while having a speed of high ignition transmission and power significant inflammation to make up for the shortcomings ignition systems of the prior art.
  • the invention proposes a system igniting a propellant charge, comprising a tube a combustible material, the inner wall of which is lined with an ignition charge which delimits a channel central inside the tube, and which is characterized by what the ignition charge is made up of several successive layers of agglomerated black powder grains with a binder.
  • black powder has a grain size between 1 and 2.8 mm, and the binder consists of collodion.
  • a thin layer of binder is interposed between two layers of grains of black powder.
  • the ignition system tube is advantageously made of a material such as cardboard loaded with nitrocellulose.
  • the ignition system is obtained by avoiding any compression of the powder, which in turn provides ease of production and manufacturing cost significantly lower than those of previous embodiments.
  • Another advantage of the invention lies in the ease of adjusting the load thickness ignition.
  • the ignition system 1 illustrated on the Figures 1 and 2 comprises a tube 2 whose wall interior is lined with an ignition charge consisting of several layers 3 of grains of powder black using a binder 4.
  • the most interior delimits a central channel 5 to allow the passage of an ignition flame intended to ensure rapid initiation of the ignition charge which transmits then this flame to the propellant charge.
  • Tube 2 is made of a material combustible, such as cardboard loaded with nitrocellulose to get complete combustion.
  • the binder 4 is for example constituted by collodion (mixture of nitrocellulose and acetone) which is used in thin layers. Concretely, we manage to obtain a regular distribution of the grains of black powder as is clear from the figure 1.
  • Tube 2 is mounted on a means allowing it to rotate at a moderate speed, around 100 rpm, the tube being supported at at least one of its ends or on part of its outer wall.
  • the inner wall of tube 2 is coated with a thin layer collodion using a volumetric dosing gun, whose flow rate can be easily adjusted, this pistol being animated by a translational movement inside of tube 2.
  • a feed chute is then introduced in the tube 2 to distribute a first layer 3 of grains of black powder, said grains being bonded at once.
  • We then apply successively layers of binder and grains of black powder up obtain an ignition charge having a thickness determined. Finally, the whole is dried.
  • the cardboard tube 2 fuel is wound around a propeller, which allows when igniting the black powder a cut out of the tube following this propeller thus improving the distribution of instant ignition of the propellant charge.
  • the ignition system previously described is especially intended to equip a container fuel 6 such as that shown in FIG. 3.
  • This container 6 consists for example of a case tubular 7 made of a combustible material, as for example a carton loaded with nitrocellulose.
  • Case 7 is closed to both of them ends by a cover 8 also made in a combustible material.
  • Each cover 8 is made up by a bottom wall 8 of annular shape and bordered externally and internally by two walls lateral which extend on the same side of the wall of bottom 8 to form two edges respectively circular external 9 and internal 10. These two edges 9 and 10 allow a tight fit between the case 7 and the tube 5 of the ignition system 1, this assembly possibly be completed with a bonding operation.
  • the interior volume 11 of the container 6 is filled with a propellant charge which may occur in loose or in bundles.
  • Such an ignition system can also be used to make ignition tubes for ammunition tanks or ignition means of shared ammunition in several burdens.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Air Bags (AREA)
  • Cartons (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Paper (AREA)
  • Making Paper Articles (AREA)

Claims (6)

  1. Zündsystem einer Treibladung, vor allem für Feldgeschützmunitionen, bestehend aus einem Rohr (2) aus brennbarem Werkstoff, dessen Innenwand mit einer Zündschicht beschichtet wird, die einen zentralen Kanal (5) im Inneren des Rohrs (2) abgrenzt, gekennzeichnet dadurch, daß die Zündladung aus mehreren aufeinanderfolgenden Schichten (3) Schwarz-pulverkörnern besteht, die durch ein Bindemittel (4) gebunden werden.
  2. Zündsystem gemäß dem Anspruch 1, gekennzeichnet dadurch, daß das Schwarzpulver eine Siebgranulomterie zwischen 1 und 2,8 mm aufweist.
  3. Zündsystem gemäß dem Anspruch 1 oder 2, gekennzeichnet dadurch, daß das Bindemittel (4) aus Kollodium besteht.
  4. Zündsystem gemäß einem beliebigen der Ansprüche 1 bis 3, gekennzeichnet dadurch, daß eine Bindemittelschicht (4) zwischen zwei Schichten (3) Schwarzpulverkörner eingefügt wird.
  5. Zündsystem gemäß einem beliebigen der vorhergehenden Ansprüche, gekennzeichnet dadurch, daß das Rohr (2) aus einem Nitrozellulosekarton besteht.
  6. Herstellungsverfahren eines Zündsystems gemäß einem beliebigen der vorstehenden Ansprüche, gekennzeichnet dadurch, daß es darin besteht:
    a) das Rohr (2) mit einer mäßigen Drehgeschwindigkeit in der Größenordnung von 100 Umdrehungen/ Minute zu drehen,
    b) die Innenwand mit einer Bindemittelschicht (4) zu beschichten, wie z. B. mit Kollodium, und zwar mit einer Dosierpistole,
    c) eine Schicht (3) Schwarzpulverkörner auf die Bindemittelschicht (4) zu verteilen,
    d) die Schritte b und c zu wiederholen, bis man eine Zündladung erzielt, die eine bestimmte Stärke hat und
    e) die Einheit Schichten (3, 4) trocknen zu lassen.
EP96401512A 1995-07-20 1996-07-09 System zum Zünden einer Treibladung insbesondere für Feldgeschütze und sein Herstellungsverfahren Expired - Lifetime EP0754927B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9508812A FR2737002B1 (fr) 1995-07-20 1995-07-20 Systeme d'allumage d'une charge propulsive, notamment pour munition d'artillerie de campagne, et son procede de fabrication
FR9508812 1995-07-20

Publications (2)

Publication Number Publication Date
EP0754927A1 EP0754927A1 (de) 1997-01-22
EP0754927B1 true EP0754927B1 (de) 1999-12-01

Family

ID=9481197

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96401512A Expired - Lifetime EP0754927B1 (de) 1995-07-20 1996-07-09 System zum Zünden einer Treibladung insbesondere für Feldgeschütze und sein Herstellungsverfahren

Country Status (6)

Country Link
US (1) US5712444A (de)
EP (1) EP0754927B1 (de)
DE (1) DE69605366T2 (de)
FR (1) FR2737002B1 (de)
IL (1) IL118844A (de)
ZA (1) ZA966061B (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6877415B2 (en) * 2002-11-01 2005-04-12 Legend Products Corporation Individual premeasured charges with reduced moisture content and method of producing same
US8136437B2 (en) * 2010-03-23 2012-03-20 Martin Electronics, Inc. Modular hand grenade
CN114286884A (zh) * 2019-08-13 2022-04-05 狩猎巨人公司 动力充药点火装置
FR3106400A1 (fr) * 2020-01-17 2021-07-23 Eurenco Dispositif pour deposer des motifs pateux dans un tube
FR3106401A1 (fr) * 2020-01-17 2021-07-23 Eurenco Tube allumeur pour chargement propulsif

Family Cites Families (13)

* 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
US4002122A (en) * 1961-03-02 1977-01-11 Mb Associates Microjet fuse
GB2160625A (en) * 1984-05-12 1985-12-24 Diehl Gmbh & Co A propelling charge for large-calibre weapons
DE3432291A1 (de) * 1984-09-01 1986-03-13 Rheinmetall GmbH, 4000 Düsseldorf Treibladungsmodul
FR2590360B1 (fr) * 1985-11-19 1989-06-30 Poudres & Explosifs Ste Nale Chargements mixtes pour munitions avec douille comprenant des charges fragmentables spheriques enrobees
DE3730530A1 (de) * 1987-09-11 1989-03-23 Rheinmetall Gmbh Anzuenduebertragungsladung fuer eine treibladung
DE3938123A1 (de) * 1989-11-16 1991-05-23 Diehl Gmbh & Co Treibladungsanzuender
DE69111944T2 (de) * 1990-08-30 1996-04-18 Olin Corp Hülsenloses einheitsliches Ammunitionsladungsmodul.
US5269224A (en) * 1990-08-30 1993-12-14 Olin Corporation Caseless utilized ammunition charge module
DE59208344D1 (de) * 1991-02-15 1997-05-22 Dynamit Nobel Ag Treibladungsmodul
JPH0526600A (ja) * 1991-07-19 1993-02-02 Asahi Chem Ind Co Ltd 発射装薬
JPH05105572A (ja) * 1991-10-22 1993-04-27 Daicel Chem Ind Ltd 中心点火薬円筒
JP3192181B2 (ja) * 1991-10-28 2001-07-23 旭化成株式会社 ユニット型発射装薬

Also Published As

Publication number Publication date
FR2737002B1 (fr) 1997-08-29
US5712444A (en) 1998-01-27
EP0754927A1 (de) 1997-01-22
DE69605366D1 (de) 2000-01-05
FR2737002A1 (fr) 1997-01-24
IL118844A (en) 1999-12-22
ZA966061B (en) 1997-02-04
DE69605366T2 (de) 2000-03-23
IL118844A0 (en) 1996-10-31

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