[go: up one dir, main page]

EP2096402A2 - Amorce de projectile - Google Patents

Amorce de projectile Download PDF

Info

Publication number
EP2096402A2
EP2096402A2 EP09001936A EP09001936A EP2096402A2 EP 2096402 A2 EP2096402 A2 EP 2096402A2 EP 09001936 A EP09001936 A EP 09001936A EP 09001936 A EP09001936 A EP 09001936A EP 2096402 A2 EP2096402 A2 EP 2096402A2
Authority
EP
European Patent Office
Prior art keywords
igniter
ignition
explosive
amplifier
transformer
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Withdrawn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
EP09001936A
Other languages
German (de)
English (en)
Other versions
EP2096402A3 (fr
Inventor
Markus Kopf
Frank Weisser
Frank Martin Kienzler
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.)
Junghans Microtec GmbH
Original Assignee
Junghans Microtec 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 Junghans Microtec GmbH filed Critical Junghans Microtec GmbH
Publication of EP2096402A2 publication Critical patent/EP2096402A2/fr
Publication of EP2096402A3 publication Critical patent/EP2096402A3/fr
Withdrawn legal-status Critical Current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
    • F42C19/02—Fuze bodies; Fuze housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
    • F42C15/18—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a carrier for an element of the pyrotechnic or explosive train is moved

Definitions

  • the invention relates to an igniter for a projectile with a primary igniter assembly and a secondary ignition assembly separated by a barrier from the primary igniter assembly and having an ignition transformer with a transformer explosive in a sleeve component and an ignition amplifier.
  • Bombardment artillery shells, mortar shells, or direct projectiles typically carry a primary igniter assembly with a primary detonator or primer and a secondary igniter assembly with a secondary detonator or primer. Between the ignition chains or ignition elements, a barrier is arranged, by which an unwanted over-ignition from the primary to the secondary ignition chain is prevented.
  • the barrier may be formed by a plate which is arranged between the igniter chains in a secure position and is swung out of the region between the igniter chains for the purpose of being in focus.
  • the barrier is formed by a detonator of the primary detonation chain which is safely swung out of an ignition line so that an ignition pulse of an initial detonator can not hit the detonator and an igniter pulse of the detonator can not hit the second detonation chain.
  • an insensitive explosive according to the international standard STANAG is such an explosive which does not ignite when a standardized initiator is detonated at a distance of at most 15 mm of water. So he has to withstand the transmitted by 15 mm water pressure wave without igniting. As a result, a high insensitivity of the explosive is achieved against accidental impact of a bullet or grenade splinter or against an adjacent explosion, so that an ammunition bearing can survive, for example, a shelling.
  • the invention is based on the consideration that insensitive explosive is relatively difficult to ignite.
  • An ignition element of the primary ignition chain e.g. a detonator
  • This requirement is related to detonator safety requirements, e.g. according to the AOP 20 standard, which in addition to the barrier, require sealing of the secondary ignition chain against contact with the hot gases generated by the reaction of a primary ignition agent.
  • no fragments, perforations, burns, smut, charring or scorching or smelting damage may occur on the secondary igniter assembly, which may not experience a faint glow.
  • the barrier can not usually provide such a seal, as it is intended to allow for over-firing, e.g. must be open.
  • the seal must therefore be realized by an additional component.
  • the invention is based on the further consideration that in order to form an insensitive ignition transformer whose transformer explosive must be pressed into a housing and held in a housing in the igniter. An intended over-ignition must therefore penetrate both the seal and the housing of the Zündübertragers and then still provide enough energy for over-ignition on the insensitive ignition transformer available. In order to reliably ensure the over-ignition on an insensitive ignition transformer, an energy loss through sealing and housing should therefore be as low as possible.
  • the sealing sleeve component can thus increase safety against unintentional ignition of the ignition transformer, since it can be kept insensitive.
  • the projectile may be an artillery projectile, a mortar shell or a direct projectile, in particular in the caliber range from 30 mm to 70 mm.
  • the barrier may be a detonator swing out of focus or a plate-shaped shield. It is expediently present in addition to the sleeve component. A gas-tightness is present if, upon ignition of a detonator of the primary ignition arrangement, no fragments, perforations, burns, traces of smoke, charring or scorching or melting damage to the secondary ignition arrangement occur.
  • the sleeve component is expediently formed in one piece. It can be part of the gas-tight seal and does not have to take over this alone.
  • the ignition arrangements can each comprise ignition chains, wherein the primary ignition arrangement can be provided instead of the ignition chain only with an ignition element.
  • the secondary ignition arrangement comprises the ignition transformer, which is provided for igniting the ignition amplifier.
  • the firing amplifier is used to ignite the main charge of the projectile.
  • the sleeve component forms a housing for booster explosive of the ignition amplifier.
  • the booster explosive can be kept as defined on the transformer explosive, without the two explosives are held by two components. An undesirable distance between the two explosives may be avoided, e.g. could arise due to manufacturing tolerances of two components. Since the over-ignition is caused by a pressure wave, the Zündübertrager can be dimensioned smaller in reliably non-existent or very small gap, as if a larger gap for safety or tolerance reasons must be included. In the case of a small ignition transformer, a detonator of the primary ignition device can be pivoted out of the ignition line or the region of the ignition transformer.
  • the sleeve component surrounds the booster explosive at least from two directions, in particular from the front and on all sides, wherein the sides in Relation to igniter orientation are to be understood. Only behind - which is not understood in this context as a side - the sleeve component can remain open for filling and sealed after filling by a closure, such as a plate, and sealed against moisture.
  • the sleeve component expediently forms at least part of a hermetic encapsulation of the transformer explosive and of the booster explosive of the ignition amplifier. It may be additional, e.g. Side seals omitted and high security can be achieved.
  • the sleeve component forms a housing for the primary ignition arrangement.
  • the primary ignition arrangement and thus also its detonator can be well shielded to the outside, so that no combustion gases pass from the primary ignition arrangement to the secondary ignition arrangement.
  • the booster explosive of the ignition amplifier can be carried out particularly insensitive and thus very safe and yet reliably ignited when the transformer explosive has other ignition characteristics than the booster explosive of the booster.
  • By a simpler ignitability of the transformer explosive reliable over-ignition can be ensured.
  • the Zündübertrager is much smaller than the booster, and therefore it is much harder hit by shrapnel or the like, can be dispensed with the carrier explosive to a complete insensitivity according to STANAG.
  • the booster explosive is expediently insensitive, in particular according to STANAG.
  • the transformer explosive is therefore advantageously a different substance than the booster explosive of the ignition amplifier.
  • the transformer explosive is at least insensitive to a temperature of up to 200 ° C., since high temperatures can also penetrate to a small ignition transformer.
  • the sleeve component forms the only material barrier between the transformer explosive and a sharply set detonator of the primary ignition arrangement. It can be achieved a reliable over ignition in focus of the primary Zündanaku.
  • the igniter has an igniter housing, which shields the components arranged in it to the outside and provides stability in launch and impact. Good shielding of the secondary igniter assembly without the use of additional components can be achieved if the sleeve member forms a bearing housing portion of the ignitor housing.
  • the shielding property of the ignitor housing may be used to shield the secondary igniter assembly.
  • the transformer explosive can be introduced directly into the sleeve component and thus directly into the igniter housing.
  • the detonator is subject to extremely high accelerations at launch and impact of the projectile, the mechanical and possibly electrical components, especially the primary ignition arrangement should survive as harmless.
  • the components can be held firmly in a detonator housing by a solid support plate.
  • a compact arrangement can be achieved when the sleeve member is a support plate for supporting the primary ignition assembly.
  • the support plate may be the strongest member that holds detonator components located further forward on the ignitor housing. It may itself be a component of the ignitor housing which surrounds all the elements of the igniter, except for the secondary igniter assembly, which may be externally disposed on the supporting part of the ignitor housing and protected only with a cover to the outside.
  • the sleeve member forms a bottom screw of the igniter, whereby the safe storage described can be connected to the compact design.
  • the sleeve component forms a nose in the direction of the primary ignition arrangement, in which, in particular, excess bearing explosive is arranged.
  • the transformer explosive can be moved to the primary ignition arrangement, so be arranged closer to the primary ignition arrangement than without a nose. A greater distance between detonator and ignition transformer can be avoided and absorption of pressure wave energy by an air space can be kept low.
  • a compact design of the igniter and a stable mounting of assemblies of the primary ignition assembly can be achieved when the nose engages in a recess of a subrack of the primary igniter assembly.
  • the stable storage can be achieved and by intervening a distance that absorbs little energy.
  • Fig. 1 shows a detonator 2 for a projectile with an igniter housing 4, which is shown partially cut in its rear portion 8.
  • the igniter housing 4 can enclose, for example, an impact mechanism and possibly electronic components, whereas in the rear area 8 a primary ignition arrangement 10 and, behind it, a secondary ignition arrangement 12 are arranged.
  • the two ignition assemblies 10, 12 are in Fig. 2 shown enlarged.
  • the primary igniter assembly 10 includes a detonator 14 which is shown in FIG Fig. 2 is shown in its focus.
  • the detonator can be pivoted from a safe position into the armed position, wherein the detonator 14 is arranged in the securing laterally offset from the central axis 18 of the igniter 2, so that it is not in alignment with an opening 20 of a plate 22, which serves as a rack for carrying assemblies of the first igniter assembly 10.
  • a lock 24 for example a double bolt system, the mechanism 16 can be locked so that it reliably holds the detonator 14 in its safety position.
  • the secondary ignition arrangement 12 comprises an ignition transformer 26 with transformer explosive 28, which is connected directly to booster explosive 30 of a Firing amplifier 32 is applied.
  • the transformer explosive 28 is mounted in a sleeve member 34, which surrounds it towards the front and to the four sides and is open only to the rear of the booster explosive 30.
  • the sleeve member 34 also forms a housing for the booster explosive 30 which holds it in a cup shape with side walls 36 shielding in all laterally directions.
  • the housing for the booster explosive 30 is closed by a lid 38 and an additional seal made of a lacquer, so that the transformer explosive 28 and the booster explosive 30 are hermetically sealed to the outside.
  • the igniter housing 4 of the igniter 2 carries all the components present in it and is responsible for the mechanical stability of the igniter 2 and the mechanically stable position of the assemblies in the igniter 2 during storage, launch, flight and impact.
  • the igniter housing 4 inter alia, a bottom plate 40 which is screwed from the inside into a housing section arranged further forward.
  • the largest part of the bottom plate 40 is formed by a bottom screw 42, which is screwed into the peripheral part of the bottom plate 40.
  • the ground screw 42 is formed by the front plate portion of the sleeve member 34 and supports assemblies of the igniter 2 to the rear.
  • the sleeve component 34 thus forms part of the igniter housing 4 of the igniter 2.
  • the transformer explosive 28 is thus introduced or pressed directly into the igniter housing 4.
  • the sleeve member 34 is provided with a nose 44 which engages in a recess 46 of the plate 22. In this recess 46, the opening 20 is incorporated in the plate 22.
  • the nose 44 terminates towards the front in a lid 48 which is directly adjacent to the opening 20 or alternatively may be located in the opening 20. In this way, the sleeve component 34 is brought very close to the detonator 14, so that little excess energy is lost from the detonator 14 to the ignition transformer 26.
  • the lock 24 Upon firing the fuze 2, the lock 24 is unlocked by the launch acceleration and releases the mechanism 16 free. This moves the detonator 14 from a peripheral position to its in focus, in which it is arranged in the central axis 18, as in Fig. 2 is shown.
  • an unillustrated initial detonator is ignited, which conducts its Sprintündenergie through a channel 50 to the detonator 14. Its conventional explosive ignites and destroys with its pressure wave, the cover 48 of the sleeve member 34 so that the pressure wave can reach the insensitive explosive 28 transformer.
  • transformer explosive 28 is not a STANAG insensitive explosive, but also not a conventional explosive, but by at least one insensitive to high temperatures, e.g. up to 200 ° C.
  • the ignited transformer explosive 28 in turn ignites the STANAG insensitive booster explosive 30, which in turn ignites the main charge of the projectile.
  • the immediate abutment of the transformer explosive 28 on the booster explosive 30, which is considered to be present even if between explosive 28 and explosive explosive 30 only a layer of air or material, e.g. Lack, of less than 300 microns is present, no or little Matterzündenergie lost, so that the energy of the relatively small Zündübertragers 26 is sufficient to ignite the insensitive explosive explosive 30.
  • the fuse 2 When the fuse 2 is energized in its fuse, e.g. by high temperature by fire or by impact of a ball or a splitter on the fuze 2, so ignites any explosives of the secondary ignition assembly 12, since both the transformer explosive 28 and the amplifier explosive 30 are insensitive to STANAG. If the transformer explosive 28 only insensitive to temperature, it could indeed be of e.g. However, such a striking is prevented by the very sheltered position of the Zündübertragers 26 in the sleeve member 34 and in the plate 22 with high probability. This also ensures a high degree of security.
  • the ignition transformer 26 or its Transmitter explosive 28 experienced no impairment. This is achieved by the hermetic sealing of the secondary ignition chain by the secondary ignition chain encompassing and integrally running sleeve member 34 in conjunction with the lid 38.
  • Fig. 3 shows an alternative sleeve member 54 with an inserted therein ignition transformer 56 with transformer explosive 58.
  • the following description is essentially limited to the differences from the embodiment in the FIGS. 1 and 2 which is referred to with regard to features and functions that remain the same. Substantially equal components are basically numbered with the same reference numerals and features not mentioned are taken over in the following embodiment, without being described again.
  • the sleeve member 54 forms towards the front through a laterally encircling wall 60 a housing for the primary ignition assembly 10.
  • the sleeve member 54 forms part of the igniter housing 4 and by means of a thread 62 with a further forward section of the igniter housing 4 can be screwed.
  • a rearward thread 64 serves to unscrew the lid 52.
  • the transformer explosive 58 is inserted directly into the sleeve member 54 and thus into the ignitor housing 4, e.g. pressed.
  • the firing amplifier 32 may be secured to the sleeve member 54 behind the firing transformer 56, e.g. with the help of screw holes 66. It is also conceivable to work on a side wall 36 to the sleeve member 54, as in the sleeve member 34, in particular in one piece.
  • the secondary ignition chain with ignition transformer 56 and further behind lying booster 32 is gas-tight separated from the detonator 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
EP09001936.5A 2008-02-26 2009-02-12 Amorce de projectile Withdrawn EP2096402A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008011081A DE102008011081B4 (de) 2008-02-26 2008-02-26 Zünder für ein Geschoss

Publications (2)

Publication Number Publication Date
EP2096402A2 true EP2096402A2 (fr) 2009-09-02
EP2096402A3 EP2096402A3 (fr) 2013-05-29

Family

ID=40580840

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09001936.5A Withdrawn EP2096402A3 (fr) 2008-02-26 2009-02-12 Amorce de projectile

Country Status (4)

Country Link
US (1) US20090260533A1 (fr)
EP (1) EP2096402A3 (fr)
DE (1) DE102008011081B4 (fr)
ZA (1) ZA200901311B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201106126D0 (en) 2011-04-11 2011-05-25 Secr Defence An explosive projectile

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1463669A (fr) * 1965-04-02 1966-06-03 Mefina Sa Fusée de projectile pour canon à âme rayée
US3380385A (en) * 1965-12-08 1968-04-30 Magnavox Co Energy-absorbing interruptor
FR1528313A (fr) * 1967-05-25 1968-06-07 Forsvarets Fabriksverk Dispositif de retard à la mise à feu, notamment pour fusées de projectiles, ainsique fusée de projectile ou projectile équipé de ce dispositif
US4741270A (en) * 1985-07-12 1988-05-03 Mefina S.A. Fuse for projectile

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1549219A (en) * 1924-02-05 1925-08-11 Remondy Leon Emile Time-fuse container for time and percussion fuses
US2537855A (en) * 1944-06-09 1951-01-09 Henry H Porter Point contact fuse
DE1202181B (de) * 1963-05-31 1965-09-30 Junghans Geb Ag Transportsicherungsvorrichtung fuer Uhrwerks-zeitzuender fuer drallose Geschosse
CH419909A (fr) * 1965-03-18 1966-08-31 Industrial Holding Ets Fusée de projectile
US3455244A (en) * 1967-09-22 1969-07-15 Dynamit Nobel Ag Shockproof primer cover
CH517932A (fr) * 1970-05-14 1972-01-15 Mefina Sa Fusée pour projectile non giratoire
DE2509058A1 (de) * 1975-03-01 1976-09-09 Diehl Fa Verzoegerungs-zuendkapsel fuer geschosszuender
BE858541A (fr) * 1977-09-09 1978-03-09 Prb Sa Dispositif de securite pour fusees
FR2501360B1 (fr) * 1981-03-09 1986-11-21 Lacroix E Tous Artifices Cartouche a actionnement pyrotechnique de charge utile explosant apres le rebond
DE3520522C2 (de) * 1985-06-07 1987-04-30 Gebrüder Junghans GmbH, 7230 Schramberg Zünder
DE4112960C2 (de) * 1991-04-20 1994-05-11 Junghans Gmbh Geb Sicherungseinrichtung mit einem Rückschießbolzensystem für einen Rotor
US5365851A (en) * 1992-08-07 1994-11-22 The Ensign-Bickford Company Initiator device
FR2892809B1 (fr) * 2005-10-27 2010-07-30 Giat Ind Sa Dispositif de securite pyrotechnique a dimensions reduites
US7549374B2 (en) * 2006-12-20 2009-06-23 Alliant Techsystems Inc. Fuze mounting for a penetrator and method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1463669A (fr) * 1965-04-02 1966-06-03 Mefina Sa Fusée de projectile pour canon à âme rayée
US3380385A (en) * 1965-12-08 1968-04-30 Magnavox Co Energy-absorbing interruptor
FR1528313A (fr) * 1967-05-25 1968-06-07 Forsvarets Fabriksverk Dispositif de retard à la mise à feu, notamment pour fusées de projectiles, ainsique fusée de projectile ou projectile équipé de ce dispositif
US4741270A (en) * 1985-07-12 1988-05-03 Mefina S.A. Fuse for projectile

Also Published As

Publication number Publication date
ZA200901311B (en) 2010-02-24
US20090260533A1 (en) 2009-10-22
EP2096402A3 (fr) 2013-05-29
DE102008011081B4 (de) 2010-04-08
DE102008011081A1 (de) 2009-08-27

Similar Documents

Publication Publication Date Title
EP0164732B1 (fr) Dispositif de génération d'un nuage fausse cible, notamment nuage infrarouge
DE3883821T2 (de) Sicherung für eine Submunition.
EP0600388B1 (fr) Projectile à charge creux du type tandem ayant des dispositifs d'allumage piézo-électrique
EP2686636B1 (fr) Munition insensible
US6283036B1 (en) Variable output warhead
DE10065816A1 (de) Munition zur Erzeugung eines Nebels
EP3759417B1 (fr) Projectile à charge active pyrotechnique
DE69218650T2 (de) Behälter, vorgesehen mit elektrischen Verbindungsmitteln
DE3844974C2 (de) Übungs-Bomblet
DE102008011081B4 (de) Zünder für ein Geschoss
EP3555556B1 (fr) Module de munition, ogive et munition
EP1166033B1 (fr) Dispositif electronique et mecanique de retard d'allumage pour munition eclairante pyrotechnique a cartouche
EP3036501B1 (fr) Retardateur pyrotechnique destiné à une amorce de munition et obus de mortier comportant un tel retardateur
DE3937464A1 (de) Einrichtung zum ausser-funktion-setzen von kampfmitteln
DE10152023B4 (de) Schockunempfindliche Nebelwurfkörper
EP3137845A1 (fr) Cartouche avec fusible dans le système de propulsion et son procédé de fabrication
EP2144033B1 (fr) Amorce de projectile
EP3918268B1 (fr) Arme munie d'une amorce de déflagration et procédé permettant de faire fonctionner ladite arme
DE2920135A1 (de) Vorrichtung zur zuendung einer zuendschnur, eines verzoegerungssatzes oder einer sprengkapsel
AT403410B (de) Zünder für eine granate
DE10039911B4 (de) Ausstoßvorrichtung zum Ausstoßen von Submunitionskörpern aus einem Geschoß
DE3620786A1 (de) Pyrotechnischer zuender
DE102008036408A1 (de) Hybridscheinziel
DE2920134A1 (de) Zeitverzoegerungs-zuendvorrichtung
DE102009032453A1 (de) Pyrotechnische Sicherungsvorrichtung

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): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA RS

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA RS

RIC1 Information provided on ipc code assigned before grant

Ipc: F42C 15/18 20060101ALI20130423BHEP

Ipc: F42C 19/02 20060101AFI20130423BHEP

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

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Effective date: 20131102