EP1794537B1 - Corps actif - Google Patents

Corps actif Download PDF

Info

Publication number
EP1794537B1
EP1794537B1 EP05768690A EP05768690A EP1794537B1 EP 1794537 B1 EP1794537 B1 EP 1794537B1 EP 05768690 A EP05768690 A EP 05768690A EP 05768690 A EP05768690 A EP 05768690A EP 1794537 B1 EP1794537 B1 EP 1794537B1
Authority
EP
European Patent Office
Prior art keywords
active
body according
active compound
active body
pyrotechnic
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.)
Active
Application number
EP05768690A
Other languages
German (de)
English (en)
Other versions
EP1794537A1 (fr
Inventor
Rainer Gaisbauer
Heinz Bannach
Vikron Kadavanich
Martin Fegg
Christian Wagner
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
Nitrochemie Aschau GmbH
Original Assignee
Rheinmetall Waffe Munition GmbH
Nitrochemie Aschau 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, Nitrochemie Aschau GmbH filed Critical Rheinmetall Waffe Munition GmbH
Publication of EP1794537A1 publication Critical patent/EP1794537A1/fr
Application granted granted Critical
Publication of EP1794537B1 publication Critical patent/EP1794537B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • F42B5/16—Cartridges, i.e. cases with charge and missile characterised by composition or physical dimensions or form of propellant charge, with or without projectile, or powder
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B45/00—Compositions or products which are defined by structure or arrangement of component of product
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
    • C06C15/00—Pyrophoric compositions; Flints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B4/00—Fireworks, i.e. pyrotechnic devices for amusement, display, illumination or signal purposes
    • F42B4/26—Flares; Torches

Definitions

  • the invention relates to an active body according to the preamble of patent claim 1.
  • Active bodies for the protection of military objects, such as aircraft from infrared guided missiles, are well known. In the simplest case, these are pyrotechnically generated heat sources that emit hot radiation.
  • An infrared decoy is in the DE 40 07 811 C2 disclosed. This has a spectral distribution of the IR radiation of only very moderately warm targets.
  • the fake target zeolite powder is used, which is suitable for absorbing humidity. It can be used as a coating of a body or as a finely divided cloud of powder particles floating in the air. In principle, all zeolite types or powders with zeolite-like crystal structures are suitable.
  • Another infrared decoy is also from the JP-A - 20011741 96 known.
  • An infrared emitter from incendiary sets describes the DE 26 14 196 A1 , This is in direct contact with a metal foil.
  • the fire charge consists in one embodiment of an intimate mixture of potassium nitrate and metallic boron. The fire rate is applied with the aid of a nitrocellulose binder on a metal foil.
  • the DE 42 44 682 A1 is a high - intensity infrared pyrotechnic deception torch disclosed. This serves to deflect a projectile which is approaching an aircraft.
  • the deceptor flare has a range of compact bubble-free pressed separate pieces of gas-releasing high-intensity infrared-emitting pyrotechnic compositions contained in a rupturable airtight container.
  • An infrared decoy for a helicopter also describes the GB 2 327 116 A , From the US 5,343,794 is another infrared decoy known. Possible material compositions Such rogue targets can the US 6,675,719 as well as the US 5,435,224 as well as the US 5,343,794 be removed. Pyrotechnic fog sets are in the WO 00158237 A1 and the WO 00/58238 described.
  • Another method for providing a dummy target body is the DE 42 38 038 C1 removable. This is distinguished by the fact that the active masses simulating the dummy target body are brought into the position of the dummy target body to be generated in such a way and decomposed there that a spectral-spatial target signature of the object is generated for a homing head.
  • the EP 0 665 415 A (Starting point for claim 1) relates to an igniter, but in particular a method for producing the same. Compared to the prior art, the method is characterized in that the integrated grooves are not milled but are already created when solidifying the compact. To meet the fire requirements, the ten grooves in total have the same surface area as the eight prior art grooves. The position, shape and depth of the groove allows the optimization of the erosion surface shape and thus the optimization of the energy application of the torch compact. The flare pellets are themselves coated with a primer mixture.
  • the GB 2 266 944 A describes a torch assembly with pyrotechnic feedstock.
  • the housing has a chamber with a trigger, which can be electrical or mechanical. Adjoining this is another chamber with an initiator in the form of a detonator and black powder. However, the larger part takes the pyrotechnic device or feedstock.
  • the pyrotechnic feed comprises, in one embodiment, a solid block of lithium metal having a number of cylindrical openings such that the longitudinal axis is aligned parallel to the length of the housing. Each opening is filled with a rod of PTFE.
  • the feedstock is a tortuous aperture containing lithium in granular form, the housing being made of aluminum.
  • the object of the invention is to provide an active body which has a specific blooming method against modern missiles as an effective IR decoy target, for example for aircraft, an object-like spectral radiation signature with high radiation fraction in the area of plum radiation with the onset of ignition over the entire duration of action with steep Anstlegsflanken and a sufficiently long Wirkzelt fulfilled. Furthermore, the efficacy should also be given at high altitudes with low oxygen and no performance degradation at high ejection speeds (due to flow effects).
  • the invention is based on the idea to provide an active body with at least one effective mass block of mono- or polybasic high-energy materials on the surface as well as in the interior with structures. Depending on the pattern (structure) and depth, this requires an enlargement of the surface, as a result of which the burning rate of the active mass block and thus the duration of action of the active body can be controlled.
  • the active mass block preferably has one or more channels / cavities in the interior, which allows an inflow-protected initiation of the active mass block in the interior.
  • the active mass block In combination with, for example, metallic cover plates and protective foils, it is thus ensured that losses of the IR radiation at high flow velocities, such as occur when the active body (effective mass block) is ejected from the aircraft, are avoided.
  • the specific blooming behavior is preferably set by filling the channels with, for example, finely structured material of the same substance but with respect to the active mass block significantly increased surface / mass ratio.
  • the steepness of the rising edge can be increased with increasing surface / mass ratio.
  • the igniting of the active compositions is carried out in a preferred embodiment within the channels in the active mass block by preferably pyrotechnic ignition charges.
  • a spontaneous, flow-dependent ignition is ensured and on the other hand, a radiation originating from the ignition charge is suppressed.
  • a active mass block having on its surface 2 structures, for example in the form of grooves.
  • the active mass block 1 has inside one or more channels / cavities 3 and filled therein effective mass substances 4.
  • This Substance can be a finely structured material of the same substance but compared to the active mass block 1 significantly increased surface / mass ratio.
  • a finely structured material are materials with a high radiation content in the wavelength range preferably between 4.1 to 4, 6 microns, for example, a Nitrocellulosengemenge with about 60% nitroglycerin and 40% diethylene glycol dinitrate.
  • the active mass block 1 further comprises a flow protection 5, which is formed here from a cover or protective cap 5a and a protective film 5b. With 6 gas and temperature bridges are characterized, which are formed by slots, perforations or holes.
  • a pyrotechnic ignition charge 7 is provided, which is preferably formed by powdered boron / potassium nitrate (proportions about 50% boron / 50% potassium nitrate). This primer 7 can be used in a particle size of about 0.2 to 3 mm.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Metallurgy (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Air Bags (AREA)

Abstract

L'invention concerne un corps actif comprenant au moins un bloc de matière active (1) contenant des matières hautement énergétiques monobasiques ou polybasiques, par exemple, une certaine quantité de nitrocellulose contenant environ 60 % de nitroglicérine et 40 % de dinitrate de diéthylène-glycole. L'invention vise à doter ce corps actif de structures sur la surface (2) comme à l'intérieur (3). De plus, les structures internes (3) sont remplies d'une substance de matière active (4). L'allumage s'effectue par un ensemble d'allumage pyrotechnique (7) qui initie le corps, de préférence, de l'intérieur.

Claims (12)

  1. Corps pyrotechnique actif pour formation d'une cible apparente, constituée d'au moins un bloc pyrotechnique (1) de masse active dont la surface (2) est dotée de structures spécifiques et présentant à l'intérieur des matériaux (4) finement structurés, en substances de la masse active du bloc (1) de masse active et amorcées par des jeux d'amorce (7),
    - les structures prévues à la surface (2) étant des rainures ou une rugosité qui ont pour effet une augmentation de la surface (2) en fonction de leur motif et de leur profondeur et
    - les structures prévues à l'intérieur étant formées par des canaux (3) et/ou des cavités (3), le bloc (1) de masse active possédant à l'intérieur des ponts à gaz et/ou de température entre les canaux (3) et/ou les cavités (3) qui sont formés par des fentes, des perforations et/ou des alésages.
  2. Corps actif selon la revendication 1, caractérisé en ce qu'à l'intérieur, des matériaux finement structurés en substances de la masse active sont placés dans les structures et présentent un rapport surface/masse nettement plus élevé que le bloc (1) de masse active.
  3. Corps actif selon les revendications 1 ou 2, caractérisé en ce que le bloc (1) de masse active et les substances (4) de la masse active présentent une proportion élevée de rayonnement dans la plage de longueur d'onde comprise entre 4,1 et 4,6 µm.
  4. Corps actif selon l'une des revendications 1 ou 2, caractérisé en ce que le bloc (1) de masse active et les substances (4) de la masse active sont constitués de matériaux à haute énergie à base unique ou multiple.
  5. Corps actif selon la revendication 4, caractérisé en ce qu'il utilise un mélange de nitrocelluloses.
  6. Corps actif selon la revendication 5, caractérisé en ce que le mélange de nitrocelluloses est constitué de 60 % de nitroglycérine et de 40 % de dinitrate de diéthylèneglycol.
  7. Corps actif selon l'une des revendications 1 à 6, caractérisé en ce que le bloc (1) de masse active présente une protection anti-souffle (5).
  8. Corps actif selon la revendication 7, caractérisé en ce que la protection anti-souffle (5) est formée d'un capot de protection (5a) et d'une feuille de protection (5b).
  9. Corps actif selon l'une des revendications 1 à 8, caractérisé en ce que les substances (4) de la masse active utilisées sont configurées en barres, en flocons, en plaquettes ou en granulés.
  10. Corps actif selon la revendication 9, caractérisé en ce que les barres ont un diamètre d'environ 0,2 à 1,5 mm.
  11. Corps actif selon l'une des revendications 1 à 10 qui précèdent, caractérisé en ce que l'allumage des substances (4) de la masse active s'effectue à l'intérieur de la structure interne par les amorces pyrotechniques (7).
  12. Corps actif selon la revendication 11, caractérisé en ce que les amorces pyrotechniques (7) sont constituées de nitrate de bore et de nitrate de potassium pulvérulents dans un rapport de mélange de 50 % pour l'un et pour l'autre, en grains d'une taille comprise entre 0,2 et 3 mm.
EP05768690A 2004-09-28 2005-07-28 Corps actif Active EP1794537B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004047231A DE102004047231B4 (de) 2004-09-28 2004-09-28 Wirkkörper
PCT/EP2005/008167 WO2006034746A1 (fr) 2004-09-28 2005-07-28 Corps actif

Publications (2)

Publication Number Publication Date
EP1794537A1 EP1794537A1 (fr) 2007-06-13
EP1794537B1 true EP1794537B1 (fr) 2012-02-29

Family

ID=35106944

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05768690A Active EP1794537B1 (fr) 2004-09-28 2005-07-28 Corps actif

Country Status (4)

Country Link
US (1) US8783183B2 (fr)
EP (1) EP1794537B1 (fr)
DE (1) DE102004047231B4 (fr)
WO (1) WO2006034746A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007040529B4 (de) 2007-08-28 2013-08-01 Diehl Bgt Defence Gmbh & Co. Kg Suchkopf
DE102008017725A1 (de) 2008-04-07 2009-10-08 Rheinmetall Waffe Munition Gmbh Scheinziel mit einfacher Sicherheitsvorrichtung
DE102008017722A1 (de) * 2008-04-07 2009-10-08 Rheinmetall Waffe Munition Gmbh Wirkmassenbehälter
DE102010024848A1 (de) 2010-06-23 2011-12-29 Rheinmetall Waffe Munition Gmbh Wurfkörper
DE102013010266A1 (de) 2013-06-18 2014-12-18 Diehl Bgt Defence Gmbh & Co. Kg Scheinzielwirkkörper mit einer pyrotechnischen Wirkmasse
DE102013108822C5 (de) * 2013-08-14 2017-08-10 Krauss-Maffei Wegmann Gmbh & Co. Kg Waffe und Wurfkörper mit RFID-System
DE102014012657B4 (de) 2014-08-22 2019-12-19 Diehl Defence Gmbh & Co. Kg Wirkkörper mit einer Wirkmasse und einer Umhüllung
DE202014006882U1 (de) 2014-08-22 2014-09-18 Diehl Bgt Defence Gmbh & Co. Kg Wirkkörper mit einer Wirkmasse und einer Umhüllung
DE202015003966U1 (de) 2015-06-08 2015-07-24 Rheinmetall Waffe Munition Gmbh Nebelmunition
DE102019126466A1 (de) 2019-10-01 2021-04-01 Rheinmetall Waffe Munition Gmbh Wirkkörper und Verfahren zum Zünden eines Wirkkörpers

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US617738A (en) * 1899-01-17 Variable-speed frictional gearing
US2210871A (en) * 1938-11-23 1940-08-06 Hercules Powder Co Ltd Process for the manufacture of smokeless powder
US3938444A (en) * 1974-07-05 1976-02-17 The United States Of America As Represented By The Secretary Of The Navy Flare cartridge
DE2614196A1 (de) * 1976-04-02 1977-10-13 Dynamit Nobel Ag Infrarotstrahler
US5435224A (en) * 1979-04-04 1995-07-25 The United States Of America As Represented By The Secretary Of The Navy Infrared decoy
US6675716B1 (en) * 1980-08-25 2004-01-13 The United States Of America As Represented By The Secretary Of The Navy Pyrotechnic pellet decoy method
DE3402546A1 (de) * 1984-01-26 1985-08-01 Pyro-Chemie Hermann Weber & Co GmbH, 5208 Eitorf Pyrotechnischer satz zur erzeugung von lichtblitzen
US5074216A (en) * 1987-09-03 1991-12-24 Loral Corporation Infrared signature enhancement decoy
DE4007811C2 (de) * 1990-03-12 1994-05-19 Dornier Gmbh Infrarot-Scheinziel
GB9120801D0 (en) * 1991-10-01 1995-03-08 Secr Defence Propelled pyrotechnic decoy flare
GB9120803D0 (en) * 1991-10-01 1995-03-08 Secr Defence Pyrotechnic decoy flare
GB2266944B (en) 1992-05-12 1995-08-02 Marconi Gec Ltd Flare arrangements
DE4238038C1 (de) 1992-11-11 1994-06-16 Buck Chem Tech Werke Verfahren zum Bereitstellen eines Scheinzielkörpers
GB2300035B (en) * 1993-07-29 1997-09-24 Lacroix Soc E An infrared decoy cartridge, and decoy apparatus including such a cartridge
DE4327976C1 (de) * 1993-08-19 1995-01-05 Buck Chem Tech Werke Flaremasse zur Scheinzielerzeugung
US5487851A (en) * 1993-12-20 1996-01-30 Thiokol Corporation Composite gun propellant processing technique
US5456455A (en) * 1994-02-01 1995-10-10 Thiokol Corporation Flare pellet and process for making same
DE19605337C2 (de) * 1996-02-14 1998-12-03 Daimler Benz Aerospace Ag Verfahren zur Veränderung der Infrarot-Signatur eines Flugzeuges
IL121276A (en) * 1997-07-10 2000-01-31 Israel Military Ind Decoy flare
US6427599B1 (en) * 1997-08-29 2002-08-06 Bae Systems Integrated Defense Solutions Inc. Pyrotechnic compositions and uses therefore
DE19914095A1 (de) * 1999-03-27 2000-09-28 Piepenbrock Pyrotechnik Gmbh Pyrotechnischer Nebelsatz zur Erzeugung eines im sichtbaren, infraroten und im Millimeterwellen-Bereich undurchdringlichen Aerosols
DE19914097A1 (de) * 1999-03-27 2000-09-28 Piepenbrock Pyrotechnik Gmbh Pyrotechnische Wirkmasse zur Erzeugung eines im Infraroten stark emissiven und im Visuellen undurchdringlichen Aerosols
JP4276348B2 (ja) * 1999-12-16 2009-06-10 日本工機株式会社 赤外線デコイフレア飛しょう体

Also Published As

Publication number Publication date
DE102004047231A1 (de) 2006-04-06
WO2006034746A1 (fr) 2006-04-06
DE102004047231B4 (de) 2008-08-21
US20070266882A1 (en) 2007-11-22
US8783183B2 (en) 2014-07-22
EP1794537A1 (fr) 2007-06-13

Similar Documents

Publication Publication Date Title
EP1794537B1 (fr) Corps actif
EP1316774B1 (fr) Projectiles à haute pénétration et effet latéral équipés d'un générateur d'éclats intégré
EP0164732B1 (fr) Dispositif de génération d'un nuage fausse cible, notamment nuage infrarouge
EP0805333B1 (fr) Méthode pour la création d'une cible artificielle
DE3515166C2 (fr)
EP2295927B1 (fr) Corps volant doté d'une charge pyrotechnique
DE19524726B4 (de) Gefechtskopf
DE10065816B4 (de) Munition zur Erzeugung eines Nebels
EP0780658B1 (fr) Grenade à main fumigène rapide
DE2547528C2 (de) Artilleriegeschoß mit erhöhter Reichweite
EP0237711B1 (fr) Allumeur pour charge propulsive d'une cartouche
DE10152023B4 (de) Schockunempfindliche Nebelwurfkörper
DE3048595A1 (de) "gefechtskopf fuer tarn- und/oder taeuschzwecke"
EP2602239B1 (fr) Masse active pour une cible à rayonnement infrarouge pour l'essentiel à émission spectrale lors d'une combustion avec effet spatial
DE2720695A1 (de) Brandmasse fuer brandgeschosse
EP2770294B1 (fr) Masse active d'explosif pour une munition de combat
EP0157421A2 (fr) Projectile fumigène
DE102012012536B4 (de) Feststoffantrieb
DE4101392C2 (de) Mörsergranate
EP4038340A1 (fr) Élément actif et procédé d'allumage d'un élément actif
DE102008028292B4 (de) Nebelwurfkörper
DE102010026641A1 (de) Nebelwurfkörper
EP2151664A2 (fr) Leurre hybride
DE7533757U (de) Artilleriegeschoss
DE2522879A1 (de) Brandgeschoss fuer ein abschussgeraet

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

17P Request for examination filed

Effective date: 20070227

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB

DAX Request for extension of the european patent (deleted)
RBV Designated contracting states (corrected)

Designated state(s): DE FR GB

RBV Designated contracting states (corrected)

Designated state(s): DE FR GB

17Q First examination report despatched

Effective date: 20090810

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RTI1 Title (correction)

Free format text: ACTIVE CHARGE

DAX Request for extension of the european patent (deleted)
RBV Designated contracting states (corrected)

Designated state(s): DE FR GB

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

DAX Request for extension of the european patent (deleted)
AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB

RBV Designated contracting states (corrected)

Designated state(s): DE FR GB

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502005012495

Country of ref document: DE

Effective date: 20120426

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20121130

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502005012495

Country of ref document: DE

Effective date: 20121130

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 13

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502005012495

Country of ref document: DE

Representative=s name: DREISS PATENTANWAELTE PARTG MBB, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502005012495

Country of ref document: DE

Representative=s name: DREISS PATENTANWAELTE PARTG MBB, DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20230720

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20230725

Year of fee payment: 19

Ref country code: DE

Payment date: 20230719

Year of fee payment: 19