EP0428074A2 - Allumeur pour charge propulsive - Google Patents

Allumeur pour charge propulsive Download PDF

Info

Publication number
EP0428074A2
EP0428074A2 EP90121443A EP90121443A EP0428074A2 EP 0428074 A2 EP0428074 A2 EP 0428074A2 EP 90121443 A EP90121443 A EP 90121443A EP 90121443 A EP90121443 A EP 90121443A EP 0428074 A2 EP0428074 A2 EP 0428074A2
Authority
EP
European Patent Office
Prior art keywords
charge
ignition
propellant
propellant charge
lighter according
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.)
Withdrawn
Application number
EP90121443A
Other languages
German (de)
English (en)
Other versions
EP0428074A3 (en
Inventor
Dieter Buckley
Erhard Münster
Wolfgang Schwarz
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 EP0428074A2 publication Critical patent/EP0428074A2/fr
Publication of EP0428074A3 publication Critical patent/EP0428074A3/de
Withdrawn legal-status Critical Current

Links

Images

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

Definitions

  • the invention relates to a propellant charge lighter of a cartridge with an ignition tube extending in its propellant charge, at one end of which a booster charge is arranged and in which a pyrotechnic ignition charge is provided, which leaves a central channel open.
  • Such a propellant charge lighter is described in DE 37 40 986 A1.
  • the primer is formed by ring-shaped tablets or a bulk charge.
  • a control bushing is provided, which shifts from a closed position into an open position due to the gas pressure which arises when the central channel is ignited, in which it releases blow-out openings of the ignition tube.
  • This structure appears to be complex since the displaceability of the control bushing in the propellant charge must be guaranteed.
  • a disadvantage of the tablets is that they are pressed individually with a tool and then have to be laboratoryized in such a way that they do not break even with the environmental tests customary for propellant lighters.
  • the object of the invention is to propose a propellant lighter of the type mentioned in the introduction, in which a uniform combustion behavior of the propellant charge powder is achieved with a simplified structure.
  • the above object is achieved in the case of a propellant charge lighter of the type mentioned at the outset in that the ignition charge is carried out by a tubular, cured layer is formed from a pyrotechnic lacquer.
  • the pyrotechnic layer is preferably poured into the ignition tube in the castable state and cured therein.
  • the pyrotechnic layer can also be applied to a combustible vapor guide tube, hardened thereon and inserted into the ignition tube.
  • the pyrotechnic lacquer is produced, for example, from an NC lacquer and black powder or boron / potassium nitrate sets or ignition mixtures with zirconium and / or titanium as the reducing agent and nitrates or metal oxides as the oxidizing agent.
  • the viscosity of the pyrotechnic varnish is pourable so that it can be distributed to the tubular layer. After drying out, the pyrotechnic layer is solid. Pressing tools and laboratory work are eliminated.
  • the pyrotechnic layer leaves the middle channel free. This ensures that the entire length of the pyrotechnic layer in the igniter tube is lit at the same time by the vapor of the booster charge. This results in a uniform burning behavior of the propellant charge powder, since the flame front developing in the propellant charge does not overtake the burning of the pyrotechnic layer.
  • a closure piece is arranged, which is located at a certain one
  • a propellant charge lighter has a metallic ignition tube (1). This is provided on its circumference and in its length with a plurality of blow-out openings (2). The blow-out openings (2) are closed by means of a combustible cover film (3).
  • An ignition device (4) is screwed into one end of the ignition tube (1).
  • a reinforcement charge (5), a primer (6) and a piercing needle (7) are arranged in this.
  • the reinforcement charge (5) consists, for example, of black powder or pressed NC tablets or another quickly burning propellant powder.
  • the ignition tube (1) is closed off by a closure piece (8). This forms a hood provided with predetermined breaking points (9).
  • the ignition tube (1) is lined with a tubular, pyrotechnic layer (10) along its entire length between the closure piece (8) and the booster charge (5).
  • the layer (10) also fills the blow-out openings (2).
  • the layer (10) leaves a central channel (11) free in the interior of the ignition tube (1).
  • the booster charge (5) is covered by a breakable disc (12).
  • the ignition tube (1) projects into its propellant charge, which is then located in the area (14) of the ignition tube (1).
  • the pyrotechnic layer (10) is made from a pyrotechnic lacquer which is pourable into the ignition tube (1) provided with the cover film (3) and is distributed therein.
  • the pyrotechnic varnish contains the usual compositions of primers, mixed with NC varnish. After the pyrotechnic lacquer has dried, the pyrotechnic layer (10) is finished. The ignition device (4) and the closure piece (8) are then screwed into the ignition tube (1).
  • the propellant charge in the surroundings (14) is lit at almost all blow-out openings (2) simultaneously. This results in a uniform flame front in the propellant charge, so that the ignition effect of the propellant charge lighter is reproducible.
  • a vapor guide tube (15) is arranged within the pyrotechnic layer (10). This has several longitudinal slots (16). The width of the longitudinal slots (16) increases towards the closure piece (8). As a result, the pyrotechnic layer (10) is initially ignited less intensely in the area near the ignition device (4) by the swaths of the booster charge (5) than in the area remote from the ignition device (4). The ignition of the propellant charge is influenced accordingly.
  • the vapor guide tube (15) can also be designed in the shape of a nozzle or conical in order to specifically reach a starting point for igniting the pyrotechnic layer (10).
  • blow-out openings (2) of different cross sections are arranged on the ignition tube (1).
  • the blow-out openings (2) near the ignition device (4) are smaller than the other blow-out openings (2).
  • the time behavior when the propellant powder burns is controlled by the size of the blow-out openings (2).
  • the penetration of the erosion of the pyrotechnic layer (10) into the propellant charge, ie. H. influence the area and the depth of the part of the propellant charge directly ignited by the pyrotechnic layer (10) through the blow-out openings (2).
  • the outlet openings (2) can be conical, slot-shaped or with different diameters.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
EP19900121443 1989-11-16 1990-11-09 Igniter for propulsive charge Withdrawn EP0428074A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3938123 1989-11-16
DE3938123A DE3938123A1 (de) 1989-11-16 1989-11-16 Treibladungsanzuender

Publications (2)

Publication Number Publication Date
EP0428074A2 true EP0428074A2 (fr) 1991-05-22
EP0428074A3 EP0428074A3 (en) 1992-08-26

Family

ID=6393661

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900121443 Withdrawn EP0428074A3 (en) 1989-11-16 1990-11-09 Igniter for propulsive charge

Country Status (3)

Country Link
US (1) US5069130A (fr)
EP (1) EP0428074A3 (fr)
DE (1) DE3938123A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993004337A1 (fr) * 1991-08-16 1993-03-04 Alliant Techsystems Inc. Dispositif de mise a feu d'un propulseur insensible
US5335600A (en) * 1992-12-01 1994-08-09 Dynamit Nobel Ag Propellant charge igniter
US5610365A (en) * 1994-12-22 1997-03-11 Rheinmetall Industrie Gmbh Cartridge ammunition having a case, an arrow projectile and an igniter-coated propellant
US5650589A (en) * 1994-12-22 1997-07-22 Rheinmetall Industrie Gmbh Cartridge ammunition having a case and an arrow projectile
WO2010055089A1 (fr) * 2008-11-13 2010-05-20 Ruag Ammotec Gmbh Allumeur pyrotechnique

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5765923A (en) * 1992-06-05 1998-06-16 Sunburst Excavation, Inc. Cartridge for generating high-pressure gases in a drill hole
FR2737002B1 (fr) * 1995-07-20 1997-08-29 Giat Ind Sa Systeme d'allumage d'une charge propulsive, notamment pour munition d'artillerie de campagne, et son procede de fabrication
PL182548B1 (pl) 1995-08-04 2002-01-31 Rocktek Ltd Urządzenie do odstrzeliwania twardego materiału
AUPP021697A0 (en) 1997-11-06 1997-11-27 Rocktek Limited Radio detonation system
FR2802297B1 (fr) * 1999-12-08 2002-10-11 Giat Ind Sa Tube allumeur pour munition d'artillerie
AUPQ591000A0 (en) 2000-02-29 2000-03-23 Rockmin Pty Ltd Cartridge shell and cartridge for blast holes and method of use
US6679175B2 (en) 2001-07-19 2004-01-20 Rocktek Limited Cartridge and method for small charge breaking
US7069862B2 (en) * 2002-08-05 2006-07-04 Carroll Bassett Handheld tool for breaking up rock
US7784404B2 (en) * 2007-11-01 2010-08-31 Alliant Techsystems Inc. Dual fault safe and arm device, adaptive structures therewith and safety and reliability features therefor
US9249759B1 (en) * 2012-08-30 2016-02-02 The United States Of America As Represented By The Secretary Of The Army Nozzled mortar ignition system for improved performance

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE31551C (de) * COMPAGNIE DES FONDERIES ET FORGES de TERRENOIRE, LA VOULTE ET BESSEGES in Lyon, Frankreich Zündrohr mit mehreren auf die Länge desselben vertheilten Zündplättchen
DE315551C (fr) *
US1367464A (en) * 1918-05-16 1921-02-01 Robert N Cook Explosive shell
US2592623A (en) * 1948-02-16 1952-04-15 Norman K Turnbull Primer assembly for artillery ammunition
US2990683A (en) * 1957-12-30 1961-07-04 Phillips Petroleum Co Ignition of solid rocket propellants
US3151447A (en) * 1960-08-12 1964-10-06 Aerojet General Co Igniter device
US3101590A (en) * 1960-10-24 1963-08-27 John P Hagerty Ignition system for solid fuel charges
DE1428665A1 (de) * 1963-06-01 1968-12-12 Dynamit Nobel Ag Abschusspatrone fuer Werfergranaten
DE2308912C3 (de) * 1973-02-23 1981-01-08 Messerschmitt-Boelkow-Blohm Gmbh, 8000 Muenchen Elektrische Zündanlage für die Sprengladung eines Gefechtskopfes o.dgl
US4149465A (en) * 1973-08-20 1979-04-17 Verkozen Jay M Ammunition cartridge
DE2537636C3 (de) * 1975-08-23 1984-09-13 Dynamit Nobel Ag, 5210 Troisdorf Übungsmunition für Mörser
US4168191A (en) * 1978-06-29 1979-09-18 The United States Of America As Represented By The United States Department Of Energy Thermally stable, plastic-bonded explosives
IT1210639B (it) * 1981-02-25 1989-09-14 Menarini Sas Prodotto: 3(4-fenil1piperazinio-1-il)-1,2-propandiolo 3(teofillin-7-il)-1propansolfonato,utilizzabile in terapia,e relativo procedimento di fabbricazione
DE3151673A1 (de) * 1981-12-28 1983-07-07 Dynamit Nobel Ag, 5210 Troisdorf Flammleitrohr fuer treibladungsanzuender
DE3701145A1 (de) * 1986-01-18 1987-08-20 Bundesrep Deutschland Treibladungsanzuender
EP0237711B1 (fr) * 1986-01-18 1992-06-10 Dynamit Nobel Aktiengesellschaft Allumeur pour charge propulsive d'une cartouche
DE3740986A1 (de) * 1987-12-03 1988-06-30 Bongers Hermann Treibladungsanzuender mit variabler anfeuerungscharakteristik

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993004337A1 (fr) * 1991-08-16 1993-03-04 Alliant Techsystems Inc. Dispositif de mise a feu d'un propulseur insensible
US5291828A (en) * 1991-08-16 1994-03-08 Alliant Techsystems, Inc. Insensitive propellant ignitor
US5335600A (en) * 1992-12-01 1994-08-09 Dynamit Nobel Ag Propellant charge igniter
US5610365A (en) * 1994-12-22 1997-03-11 Rheinmetall Industrie Gmbh Cartridge ammunition having a case, an arrow projectile and an igniter-coated propellant
US5650589A (en) * 1994-12-22 1997-07-22 Rheinmetall Industrie Gmbh Cartridge ammunition having a case and an arrow projectile
WO2010055089A1 (fr) * 2008-11-13 2010-05-20 Ruag Ammotec Gmbh Allumeur pyrotechnique
DE102009052660B4 (de) 2008-11-13 2022-10-20 Ruag Ammotec Gmbh Pyrotechnischer Anzünder

Also Published As

Publication number Publication date
DE3938123A1 (de) 1991-05-23
US5069130A (en) 1991-12-03
EP0428074A3 (en) 1992-08-26

Similar Documents

Publication Publication Date Title
DE4001864C2 (fr)
DE2914049C2 (de) Patrone
EP0428074A2 (fr) Allumeur pour charge propulsive
DE1918046C3 (de) Anzündvorrichtung
EP0680857B1 (fr) Générateur de gaz pour système de retenue dans un véhicule
DE2105295C1 (de) Pulverkörper für hülsenlose Munition
DE2457622C3 (de) Nichtelektrisch zundbare Sprengkapsel und Sprengsystem unter Verwendung der Sprengkapsel sowie Zundverfahren
DE2753721A1 (de) Anzuendelement mit verstaerkungsladung
CH634915A5 (de) Elektrische zuendvorrichtung.
DE2826497A1 (de) Treibspiegelgeschoss mit pyrotechnischem satz
DE69105393T2 (de) Zündsystem für eine pyrotechnische Zusammensetzung.
DE2648267C2 (fr)
DE2936861C2 (de) Kartusche zum Ausstreuen von Scheinzielmaterial, insbesondere aus einem Luftfahrzeug
EP0324371B1 (fr) Initiateur, de préférence à retard de longue durée
DE1956872A1 (de) Pyrotechnischer Verzoegerungssatz
DE2553717A1 (de) Zuendvorrichtung
DE3226269C2 (de) Teilverbrennbarer Treibladungsanzünder
DE3841690A1 (de) Anzuendmischung
CH645955A5 (de) Raketenmotor fuer feste brennstoffe.
DE3321357A1 (de) Industriekartusche
DE4239167A1 (de) Gasgenerator für eine Gassack-Einheit
EP0847972B1 (fr) Retard pyrotechnique, son procédé de fabrication et son utilisation
DE3248014C2 (fr)
DE2002819C3 (de) Verzögerungseinrichtung für das Zünden eines Raketengefechtskopfes
EP2405229B1 (fr) Système d'allumage amélioré pour objets pyrotechniques

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB IT

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19930227