EP0204115B1 - Wurfkörper zur Darstellung eines Infrarot-Flächenstrahlers - Google Patents

Wurfkörper zur Darstellung eines Infrarot-Flächenstrahlers Download PDF

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Publication number
EP0204115B1
EP0204115B1 EP86105294A EP86105294A EP0204115B1 EP 0204115 B1 EP0204115 B1 EP 0204115B1 EP 86105294 A EP86105294 A EP 86105294A EP 86105294 A EP86105294 A EP 86105294A EP 0204115 B1 EP0204115 B1 EP 0204115B1
Authority
EP
European Patent Office
Prior art keywords
ignition
destroying
combustible
self
leaves
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
EP86105294A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0204115A2 (de
EP0204115A3 (en
Inventor
Chemisch-Technische Werke Gmbh & Co. Buck
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.)
Buck Chemisch Technische Werke GmbH and Co
Original Assignee
Buck Chemisch Technische Werke 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 Buck Chemisch Technische Werke GmbH and Co filed Critical Buck Chemisch Technische Werke GmbH and Co
Publication of EP0204115A2 publication Critical patent/EP0204115A2/de
Publication of EP0204115A3 publication Critical patent/EP0204115A3/de
Application granted granted Critical
Publication of EP0204115B1 publication Critical patent/EP0204115B1/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
    • 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 a projectile for displaying an infrared radiator.
  • a projectile for displaying an infrared radiator.
  • Such a projectile is disclosed in DE-PS 28 11 016, which, however, is not part of the prior art (Art. 54 (2) EPC).
  • missiles are used to set up so-called infrared dummy targets, i.e. to deflect missiles equipped with an infrared seeker. If, for example, the location devices of a ship determine that such a missile is approaching, then the missile is fired; which then ignites and ejects the burnt papers at a predetermined distance and height from the ship, so that the burnt papers form a slowly absent, burning disturbing cloud that deflects the incoming missile from the ship and onto itself.
  • the ignition of the ignition decomposition charge initially results in a "radiation flash", that is, radiation of high intensity but extremely short time, whereupon the radiation effect of the burning papers comes into play in such a way that initially a more or less steep increase (burning phase of the papers) up to a certain maximum (all leaflets burn on their entire surface), followed by a constant or slightly decreasing radiation, with a more or less steeply falling end flank at the time when the burning leaflets are extinguished.
  • the maximum of the fins is therefore a "radiation hole", the temporal size of which depends on the steepness of the rising edge of the fins, so it is a function of the reaction speed of the focal layer.
  • the radiation hole mentioned can lead to a reduction in protection, because the distance between the aircraft and the radiation cloud increases extremely quickly.
  • the radiation hole mentioned has a disadvantageous effect on the protection of very large and slowly moving objects, such as ships of considerable size, if for a completely different reason than in the case of the aircraft mentioned above.
  • very early detection of the approaching missile is necessary, on the one hand because the maneuvering speed of such ships is low, and on the other hand because the missile can only be deflected if both the ship and the neighboring interference cloud are in its search field appears, which is only the case if the missile is still far away from the ship.
  • the requirement for the comparatively early formation of the radiation cloud means that the radiation time of the cloud must be long, and that the burning leaves thus have a burning time of, for example, 30 to 40 seconds.
  • the object of the present invention is therefore to improve a throwing body in such a way that the explained radiation hole of the resulting radiation cloud is considerably shortened, both with burning layers of short and with burning layers of long and very long burning times.
  • the solution to this problem results from the characteristics of the characterizing part of the main claim.
  • an ignition aid mass is switched on between the igniter charge or the igniter sleeve and the fuel sheets, i.e. a fast-reacting mass which, on the one hand, emits high-intensity infrared radiation during its burn-up and thus, so to speak, extends the flash of ignition charge, and on the other hand extends the fire layer of the Firing leaves ignited so extensively that their radiation rising edge becomes very steep.
  • the extension of the radiation flash in the case of burning papers with burning layers of any reaction speed (fast, medium, slow) has an effect on the largest possible ignition, and this also in the case of a high relative speed between the burning papers and the ambient air (prevention of Blow-out effect).
  • the dummy target shines with the highest possible intensity immediately after initiating the fault measures, because in such a case the seeker has already switched to the target and therefore the dummy target must radiate much more strongly than the actual one Aim to pull the seeker head away from the latter.
  • This radiation behavior is in turn made possible by a mixture of fast-burning papers (high radiation intensity) and slow-burning (low radiation intensity) papers.
  • the figure shows a contact head 1 with a charge chamber in which, in the ready-to-operate state, there is an ejection charge 15, in which a squib 17 is embedded.
  • the charge chamber is closed on the bottom part of the contact head 1 with a screw cap, which has window-like predetermined breaking points and a web-shaped abutment for a spacer of a shooting cup.
  • An ignition delay set 31 is arranged in the head part of the contact head 1 and connects the charge chamber to the inside of a throwing agent container 3.
  • the ignition delay set 31 is screwed into the head part of the contact head 1 via a threaded sleeve.
  • the fastening plate 71 is arranged in a sealing manner in the bottom of the throwing agent container 3 via an O-ring 113.
  • the contact head 1 is made together with the screw cap, including its other components, by injection molding from polystyrene.
  • the wall thickness of the throwing agent container 3 and the material thickness of the lid 5 are approximately 0.25 mm.
  • An ignition disassembly unit 33 is inserted in the interior of the throwing agent container 3 in the mounting plate 71.
  • This ignition disassembly unit 33 consists of a sleeve 75 which contains an ignition disassembly charge 35 and which has an inwardly flanged edge 77 at its end located in the mounting plate 71 a cover disk 79 engages, by means of which the sleeve 75 is fastened in the fastening plate 71 on the bottom 29 of the throwing agent container 3 in a sealing manner by means of a hole screw 81 and an annular seal 115.
  • the bore in the cover disk 79 is covered with a glued-on film 119, preferably a tin film, and this thereby closes the ignition disassembly kit 35 with respect to the ignition delay set 31.
  • the igniter substitute passes through an igniter core 37 made of nitrocellulose powder tubes over its entire length. This powder tube preferably has a diameter of 1.3 mm and a continuous inner hole of 0.2 mm in diameter.
  • a throwing agent 73 is arranged in the interior of the throwing agent container 3, which is circular sector-shaped leaflets 83 with burning layers.
  • the sleeve 75 of the ignition disassembly unit 33 is made of aluminum just like the throwing agent container 3 and its cover 5 and its fastening plate 71.
  • Sleeve 75, throwing agent container 3 and lid 5 each have a wall thickness of approximately 0.25 mm.
  • a second sleeve 84 which has an extremely thin wall thickness, is provided between the igniter sleeve 75 and the fuel discs 83, to be precise after this.
  • the annular space between the two sleeves 75 and 84 is filled with an ignition aid compound 85, specifically with loosely poured red phosphorus.
  • the ignition disassembly kit 35 When the ignition disassembly kit 35 is ignited, it ignites the ignition aid compound 85, which emits a considerable amount of infrared radiation during its brief erosion and, at the same time, ignites the burning discs 83 over a large area.
  • This large-area lighting of the fuel discs 83 results from the fact that the firing of the ignition aid mass 85 forms a fireball around the throwing body, through which the burning discs 83 fly.
  • the burning sheets 83 therefore quickly catch fire over a large area and this also when the burning layer is very slow to react, that is to say, for example, passivated or covered with a passivation layer.
  • the ignition disassembly set reacts evenly over its entire length, so that the ignition aid can be effective evenly all around and over the entire length.
  • the igniter core made of nitrocellulose powder, which is centrally located in the ignition disassembly kit and which has a stabilizing effect on rapid combustion due to its easy flammability, the high burning rate and the release of gas during burning. Without this burn-off stabilizer, there could be a risk of fluctuations in the reaction speed which can be caused in the course of storage as a result of an uneven compression of the batch, these uneven compressions being caused, for example, by shaking during transport.
  • the invention is not limited to the exemplary embodiment shown, but numerous modifications are possible compared to it.
  • the second sleeve 84 is not absolutely necessary; the ignition aid compound 83 can also be filled into the annular space between the sleeve 75 and the stack of fuel sheets.
  • Another possibility is to extend the fuel discs 83 to the sleeve 75 and thus to drop the annular space, in which case the discs themselves are dusted with the ignition aid compound 83 or this is applied to the discs as the top layer.
  • an ignition aid compound other than red phosphorus but this is preferred because it is usually also part of the burning layer of the leaflets 83.

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)
  • Radiation-Therapy Devices (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
EP86105294A 1985-04-26 1986-04-16 Wurfkörper zur Darstellung eines Infrarot-Flächenstrahlers Expired - Lifetime EP0204115B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3515166 1985-04-26
DE19853515166 DE3515166A1 (de) 1985-04-26 1985-04-26 Wurfkoerper zur darstellung eines infrarot-flaechenstrahlers

Publications (3)

Publication Number Publication Date
EP0204115A2 EP0204115A2 (de) 1986-12-10
EP0204115A3 EP0204115A3 (en) 1988-09-21
EP0204115B1 true EP0204115B1 (de) 1990-04-11

Family

ID=6269236

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86105294A Expired - Lifetime EP0204115B1 (de) 1985-04-26 1986-04-16 Wurfkörper zur Darstellung eines Infrarot-Flächenstrahlers

Country Status (9)

Country Link
US (1) US4624186A (pt)
EP (1) EP0204115B1 (pt)
AU (1) AU580403B2 (pt)
BR (1) BR8601869A (pt)
CA (1) CA1263273A (pt)
DE (2) DE3515166A1 (pt)
DK (1) DK190186A (pt)
IN (1) IN170811B (pt)
NO (1) NO162434C (pt)

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US4841865A (en) * 1987-06-17 1989-06-27 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence Smoke composition and method of making same
US5074216A (en) * 1987-09-03 1991-12-24 Loral Corporation Infrared signature enhancement decoy
DE3912183A1 (de) * 1989-04-13 1990-10-18 Buck Chem Tech Werke Anzuendzerlegervorrichtung
GB9120803D0 (en) * 1991-10-01 1995-03-08 Secr Defence Pyrotechnic decoy flare
GB9120801D0 (en) * 1991-10-01 1995-03-08 Secr Defence Propelled pyrotechnic decoy flare
GB2283303B (en) * 1991-10-01 1995-11-08 Secr Defence High intensity infra-red pyrotechnic decoy flare
FR2694804B1 (fr) * 1992-08-11 1994-09-16 Poudres & Explosifs Ste Nale Leurre stabilisée et propulsé, émettant dans l'infrarouge.
DE4307237C1 (de) * 1993-03-08 1994-04-07 Buck Chem Tech Werke Verfahren zur Herstellung von Metallpulver enthaltenden pyrotechnischen Wirkmassen auf wäßriger Basis, beschichtete Metallpulver sowie deren Verwendung
DE4327976C1 (de) * 1993-08-19 1995-01-05 Buck Chem Tech Werke Flaremasse zur Scheinzielerzeugung
US5456455A (en) * 1994-02-01 1995-10-10 Thiokol Corporation Flare pellet and process for making same
FR2930984A1 (fr) * 1994-03-15 2009-11-13 Poudres Et Explosifs Snpe Sa S Procede et munitions de contre-mesure par ecran a vision unidirectionnelle
US5561259A (en) * 1994-10-13 1996-10-01 Alliant Techsystems Inc. Decoy flare with sequencer ignition
GB9507920D0 (en) 1995-04-18 2008-03-05 Secr Defence Infra-Red Emitting Decoy Flare
US5565645A (en) * 1995-04-24 1996-10-15 Thiokol Corporation High-intensity infrared decoy flare
US5763818A (en) * 1995-06-30 1998-06-09 Thiokol Corporation Illuminant igniter pellet ignition system for use in a decoy flare
US5610364A (en) * 1995-06-30 1997-03-11 Thiokol Corporation Nozzle plug for plume enhancement in a kinematic flare
DE19548436C1 (de) * 1995-12-22 1997-06-26 Buck Chem Tech Werke Schnellnebelhandgranate
US5703314A (en) * 1996-11-20 1997-12-30 The United States Of America As Represented By The Secretary Of The Navy Infrared projector countermeasure system
WO1998050755A1 (en) * 1997-05-07 1998-11-12 Particia Farnell Infrared illuminating compositions and articles
EP0898692A4 (en) * 1997-05-07 2000-02-23 Patricia L Farnell AMMUNITION WITH A LIGHT CHARGE EMITTING INFRARED RADIATION
US5874690A (en) * 1998-02-06 1999-02-23 Brunn; Michael Smoke grenade with rapid ignition
US5983801A (en) * 1998-04-29 1999-11-16 Brunn; Michael Separating smoke grenade
DE19841113A1 (de) 1998-09-09 2014-04-24 Ernst-Christian Koch Selbstschutzeinrichtung für Strahlflugzeuge
US6230629B1 (en) * 1999-01-21 2001-05-15 The United States Of America As Represented By The Secretary Of The Navy Rapid ignition infrared decoy for anti-ship missile
DE19951767C2 (de) 1999-10-27 2002-06-27 Buck Neue Technologien Gmbh Dual-Mode-Täuschkörper
DE10065816B4 (de) * 2000-12-27 2009-04-23 Buck Neue Technologien Gmbh Munition zur Erzeugung eines Nebels
US7640858B1 (en) * 2004-01-23 2010-01-05 Kilgore Flares Company, Llc Stacked pellet flare assembly and methods of making and using the same
DE102004018862A1 (de) 2004-04-19 2005-11-03 Diehl Bgt Defence Gmbh & Co. Kg Verfahren und Vorrichtung zur Erzeugung eines Infrarot-Flächenstrahlers
US7154429B1 (en) * 2004-12-06 2006-12-26 Roberts Jr Charles C Device for protecting military vehicles from infrared guided munitions
DE102008064638A1 (de) 2008-06-16 2009-12-17 Rheinmetall Waffe Munition Gmbh Flare mit Flareanzündung sowie Ausstoßsystem dafür
DE102009020558A1 (de) 2009-05-08 2010-11-18 Rheinmetall Waffe Munition Gmbh Aktivierungseinheit für munitionsfreie Scheinziele
SG10201402195PA (en) 2009-05-08 2014-10-30 Rheinmetall Waffe Munition Activation unit for explosive masses or explosive bodies
DE102009030870A1 (de) 2009-06-26 2010-12-30 Rheinmetall Waffe Munition Gmbh Wirkkörper
DE102009030871B4 (de) * 2009-06-26 2013-05-29 Rheinmetall Waffe Munition Gmbh Verbrennbarer Wirkmassencontainer
DE102009030869A1 (de) 2009-06-26 2011-02-10 Rheinmetall Waffe Munition Gmbh Wirkkörper
DE102010013110A1 (de) * 2010-03-26 2011-09-29 Rheinmetall Waffe Munition Gmbh Gekapselter Wirkkörper für ein IR-Täusch- bzw. Scheinziel
DE102013010266A1 (de) † 2013-06-18 2014-12-18 Diehl Bgt Defence Gmbh & Co. Kg Scheinzielwirkkörper mit einer pyrotechnischen Wirkmasse
FR3018112B1 (fr) * 2014-03-03 2018-04-20 Etienne Lacroix Tous Artifices S.A. Cartouche de leurrage pour aeronefs
JP6563773B2 (ja) * 2015-10-20 2019-08-21 株式会社ダイセル 煙幕発生器

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Also Published As

Publication number Publication date
US4624186A (en) 1986-11-25
CA1263273A (en) 1989-11-28
DK190186A (da) 1986-10-27
AU580403B2 (en) 1989-01-12
NO861646L (no) 1986-10-27
DE3515166C2 (pt) 1987-05-27
BR8601869A (pt) 1986-12-30
IN170811B (pt) 1992-05-23
EP0204115A2 (de) 1986-12-10
NO162434B (no) 1989-09-18
EP0204115A3 (en) 1988-09-21
DE3670366D1 (de) 1990-05-17
DE3515166A1 (de) 1986-10-30
DK190186D0 (da) 1986-04-24
AU5610786A (en) 1986-10-30
NO162434C (no) 1989-12-27

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