EP1794537A1 - Corps actif - Google Patents

Corps actif

Info

Publication number
EP1794537A1
EP1794537A1 EP05768690A EP05768690A EP1794537A1 EP 1794537 A1 EP1794537 A1 EP 1794537A1 EP 05768690 A EP05768690 A EP 05768690A EP 05768690 A EP05768690 A EP 05768690A EP 1794537 A1 EP1794537 A1 EP 1794537A1
Authority
EP
European Patent Office
Prior art keywords
body according
active
active body
mass block
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.)
Granted
Application number
EP05768690A
Other languages
German (de)
English (en)
Other versions
EP1794537B1 (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

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 for example aircraft from infrared-guided missiles, are sufficiently known.
  • these are pyrotechnically generated heat sources which emit hot radiation.
  • An infrared target is disclosed in DE 40 07 811 C2. This has a spectral distribution of the IR radiation of only very moderately warm targets.
  • zeolite powder is used, which is suitable for absorbing atmospheric moisture. It can be used as a coating on 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.
  • 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.
  • DE 42 44 682 A1 discloses a high-intensity pyrotechnic infrared flare torch. This serves to deflect a projectile which is approaching an aircraft.
  • the dousing torch has a section of compact bubble-free pressed separate pieces of gas-releasing high-intensity infrared-emitting pyrotechnic compositions contained in a rupturable airtight container.
  • infrared decoy target for a helicopter is also described in GB 2 327 116 A. From US Pat. No. 5,343,794 a further infrared target is known. Possible material compositions Such decoys can be found in US 6,675,716 and US 5,435,224 and US 5,343,794. Pyrotechnic fog sets are described in WO 00/58237 A1 and WO 00/58238.
  • DE 196 05 337 C2 describes a method for modifying the spatial and temporal infrared structure of an aircraft on account of the new generation of infrared guided missiles with built-in flare protection circuits.
  • the proposal is to artificially alter the spatial infrared signature of an aircraft not only in a narrow spatial area on the fuselage, but over typical flight dimensions.
  • Another method for providing a dummy target body is 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 object of the invention is to create an active body which has an effective IR decoy target, for example for aircraft, an object-like spectral radiation signature with high radiation content in the area of the plasma irradiation against modern Kli ⁇ at the beginning of the ignition over the entire duration of action, a has a specific blooming process with steep rising edges and a sufficiently long action time. Furthermore, the efficacy should also be given at high altitudes with low oxygen and no performance losses at high ejection speeds (due to flow effects).
  • the invention is based on the idea of providing an active body with structures having at least one active mass block of monobasic or polybasic high-energy materials on the surface. 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, as a result of which an inward-protected initiation of the active mass block in the interior is made possible.
  • the active body effective mass block
  • 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.
  • gas and temperature bridges are of further advantage. These can be created by slots, perforations and / or holes between the inner channels. By a selectable number, size and arrangement of these bridges and the remaining wall thickness a defined timing of the overflamming on the outer surfaces is possible.
  • 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, an interference radiation originating from the ignition charge is prevented.
  • FIG. 1 shows an active mass block which has two structures on its surface, 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 may be a finely structured material of the same substance but compared to the Wirkmas ⁇ senblock 1 significantly increased surface / mass ratio.
  • materials with a high radiation fraction in the wavelength range are preferably between 4.1 and 4.6 ⁇ m, for example a nitrocellulose mixture with about 60% nitroglycerin and 40% diethylene glycol dinitrate.
  • These active substance substances 4 can be present in the form of rods (about 0.2 to 3 mm in diameter), flakes, platelets or granules and can thus be used.
  • 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.
  • 6 designates gas and temperature bridges, which are formed by slots, perforations or bores.
  • 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

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Crystallography & Structural Chemistry (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.
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 true EP1794537A1 (fr) 2007-06-13
EP1794537B1 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
DE102008017722A1 (de) 2008-04-07 2009-10-08 Rheinmetall Waffe Munition Gmbh Wirkmassenbehälter
DE102008017725A1 (de) 2008-04-07 2009-10-08 Rheinmetall Waffe Munition Gmbh Scheinziel mit einfacher Sicherheitsvorrichtung
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)

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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

Non-Patent Citations (1)

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Title
See references of WO2006034746A1 *

Also Published As

Publication number Publication date
EP1794537B1 (fr) 2012-02-29
WO2006034746A1 (fr) 2006-04-06
DE102004047231B4 (de) 2008-08-21
US8783183B2 (en) 2014-07-22
DE102004047231A1 (de) 2006-04-06
US20070266882A1 (en) 2007-11-22

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