WO2010149291A1 - Unité d'allumage ou d'activation pour l'allumage de fusées éclairantes au phosphore rouge au moyen d'un laser - Google Patents

Unité d'allumage ou d'activation pour l'allumage de fusées éclairantes au phosphore rouge au moyen d'un laser Download PDF

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Publication number
WO2010149291A1
WO2010149291A1 PCT/EP2010/003568 EP2010003568W WO2010149291A1 WO 2010149291 A1 WO2010149291 A1 WO 2010149291A1 EP 2010003568 W EP2010003568 W EP 2010003568W WO 2010149291 A1 WO2010149291 A1 WO 2010149291A1
Authority
WO
WIPO (PCT)
Prior art keywords
ignition
laser
flares
combustion chamber
unit according
Prior art date
Application number
PCT/EP2010/003568
Other languages
German (de)
English (en)
Inventor
Michael Gowin
Jürgen Hofmann
Markus Jung
Nenad Prelic
Eric Ten Have
Original Assignee
Rheinmetall Waffe Munition 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 filed Critical Rheinmetall Waffe Munition Gmbh
Publication of WO2010149291A1 publication Critical patent/WO2010149291A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
    • F42B12/44—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information of incendiary type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/10—Initiators therefor
    • F42B3/113—Initiators therefor activated by optical means, e.g. laser, flashlight
    • 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 is concerned with the ignition of red-phosphorus flares (RP-flares), in particular ammunition-free active materials or Wirkkörpem example, for forming IR-deco-targets, by means of laser.
  • RP-flares red-phosphorus flares
  • Wirkkörpem example for forming IR-deco-targets, by means of laser.
  • Red phosphorus has been used for military purposes for a long time, e.g. As in fog grenades, flares, etc.
  • the purpose of ejecting flares is the diversion of approaching missiles.
  • the ignition of the RP units usually takes place via an ignition or disassembly charge, which ensures that the RP units are optimally distributed and ignited for the respective purpose.
  • This new ignition concept is described in detail in DE 10 2006 004 912 A1. It is a system known to protect, in particular, large-scale flying platforms, such as aircraft, IR or radar-directed threats.
  • the activation or ignition of the active body preferably takes place without contact.
  • the ejection of the active body is then carried out pneumatically or mechanically.
  • the active bodies themselves are ammunition-free packages which are ignited by means of hot air or a laser.
  • the invention has the object to show an ignition device or activation unit for ammunition-free active body / active masses.
  • the object is achieved by the features of claim 1.
  • Advantageous embodiments are shown in the subclaims.
  • the invention is based on the idea of a Laseranzündung or activation by means of laser.
  • a big advantage of a laser ignition is that a time-defined amount of energy can be dosed accurately in a simple manner. This allows a temporal resolution of the ignition process in the range ⁇ 1 microseconds and thus ensures optimum efficiency of the ignition device.
  • the RP flares are thus exposed by means of laser radiation with a sufficiently high power density on its surface.
  • the temperature of the RP flares increases, which causes ignition with self-sustaining combustion.
  • the laser energy is directed to the largest possible portion of the surface.
  • the laser radiation is shaped by appropriate optics so that an optimal distribution on the surface is achieved.
  • this solution enables an extremely flexible ignition configuration.
  • 1 is a side view of an activation unit
  • FIG. 1 is a plan view of the unit of FIG. 1,
  • Fig. 3 is a sectional view showing the combustion chamber of Fig.1.
  • an ignition or activation unit is marked with 100, consisting of a combustion chamber 1 and adapter (six) 3 for receiving various (six) laser optics 2 and a distributor plate 4 for preferably a compressed air distributor 5. Both can be attached via cylinder screws .
  • the combustion chamber 1 is provided with a number of ventilation channels 9, but at least one, which are acted upon by means of angle (six) 8 with compressed air from the manifold 5. Unused openings can be closed with blanking plugs or countersunk screws.
  • Denoted by 10 is a housing of the unit 100, which can be mounted on a plate 11 on an object, vehicle, etc.
  • a Flare Pact consists in a first variant of about 150, for example, stacked Einzelflares (RP Flareblättchen), which are tied together with a fishing line in the center (hole about 5 mm).
  • RP Flareblättchen stacked Einzelflares
  • the diameter of the flare package is approx. 30 mm.
  • the leaflets are held together by, for example, three bows of fishing line.
  • the fishing line is preferably twisted on the ignition surface relative to the longitudinal axis. This can be achieved, for example, by twisting the flare package so that the fishing line is not parallel to the longitudinal axis of the flare package.
  • the lacing should only be performed on the surface of the flare package. An internal lacing should be avoided.
  • the flare (s) are pushed through the central channel (1) of the ignition unit 100 (housing 10) and are irradiated laterally with up to six laser beams through the optics 2. These laser beams ignite the individual flare leaflets and separate the fishing line.
  • the planar energy input of the laser radiation accelerates the ignition process of the flare package and thus ensures a sufficiently fast rising edge of the beam line of the IR decoy target.
  • the gas purging on the one hand supports the ignition process and on the other hand prevents the contamination of the laser optics 2 by burned products.
  • the laser source (s) and Control are spatially separated from the combustion chamber 1, the laser radiation is preferably transported via fiber optic cables or the like to the combustion chamber 1 and provided with a beam guide, which are connected by means of the adapter 3 with the combustion chamber 1.
  • the beam paths have a lateral offset from the center of the central channel of the combustion chamber 1.
  • the flare package may be encapsulated by a fully combustible envelope (not shown).
  • the ignition of the combustible shell or the flare package takes place from the outside over the upper side surface of the shell.
  • the case may also contain an ignition aid to assist the flare ignition.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Lasers (AREA)

Abstract

Partant de l'idée que lors d'un allumage au moyen d'air chaud, on sait qu'une autre source de chaleur est créée à laquelle pourrait réagir un missile guidé cherchant la chaleur, l'invention se concentre sur un allumage au moyen d'un laser. Il est proposé de soumettre les surfaces des fusées éclairantes au phosphore rouge à un faisceau laser ayant une puissance volumique suffisamment élevée, des optiques laser (2) étant intégrées pour permettre une répartition sur une grande surface. Une unité d'allumage ou d'activation (100) appropriée pour un tel allumage au laser des fusées éclairantes présente une chambre de combustion (1) avec plusieurs adaptateurs (3) pour recevoir diverses optiques laser (2).
PCT/EP2010/003568 2009-06-26 2010-06-15 Unité d'allumage ou d'activation pour l'allumage de fusées éclairantes au phosphore rouge au moyen d'un laser WO2010149291A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009030868.7 2009-06-26
DE200910030868 DE102009030868B4 (de) 2009-06-26 2009-06-26 Anzünd- bzw. Aktivierungseinheit zum Anzünden von Rot-Phosphor-Flares mittels Laser

Publications (1)

Publication Number Publication Date
WO2010149291A1 true WO2010149291A1 (fr) 2010-12-29

Family

ID=42562466

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/003568 WO2010149291A1 (fr) 2009-06-26 2010-06-15 Unité d'allumage ou d'activation pour l'allumage de fusées éclairantes au phosphore rouge au moyen d'un laser

Country Status (2)

Country Link
DE (1) DE102009030868B4 (fr)
WO (1) WO2010149291A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8714089B2 (en) 2009-05-08 2014-05-06 Rheinmetall Waffe Munition Gmbh Activation unit for explosive masses or explosive bodies
US20230100261A1 (en) * 2020-03-11 2023-03-30 Strictly Fx, Llc Pyrotechnic launch units and systems
US12044515B2 (en) 2023-03-30 2024-07-23 Strictly Fx, Llc Pyrotechnic launch units and systems

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009020558A1 (de) 2009-05-08 2010-11-18 Rheinmetall Waffe Munition Gmbh Aktivierungseinheit für munitionsfreie Scheinziele
DE102008064638A1 (de) 2008-06-16 2009-12-17 Rheinmetall Waffe Munition Gmbh Flare mit Flareanzündung sowie Ausstoßsystem dafür
DE102009030869A1 (de) 2009-06-26 2011-02-10 Rheinmetall Waffe Munition Gmbh Wirkkörper
DE102009030870A1 (de) 2009-06-26 2010-12-30 Rheinmetall Waffe Munition Gmbh Wirkkörper
DE102009043491A1 (de) 2009-09-30 2011-04-07 Rheinmetall Waffe Munition Gmbh Aktivierungseinheit für munitionsfreie Scheinziele
DE202015004311U1 (de) 2015-06-17 2015-09-01 Rheinmetall Waffe Munition Gmbh Wirkkörperwurfanlage

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4391195A (en) * 1979-08-21 1983-07-05 Shann Peter C Detonation of explosive charges and equipment therefor
DE4313571C1 (de) * 1993-04-26 1994-08-18 Daimler Benz Ag Rückhaltesystem für Fahrzeuginsassen
JP2004218465A (ja) * 2003-01-10 2004-08-05 Tokai Univ 固体燃料ロケット
DE102006004912A1 (de) * 2006-01-20 2007-07-26 Rheinmetall Waffe Munition Gmbh System zum Schutz insbesondere großer fliegender Plattformen vor infrarot- bzw. radargelenkter Bedrohungen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3685392A (en) * 1970-02-12 1972-08-22 Remington Arms Co Inc Laser ignition system
DE2359758C1 (de) * 1973-11-30 1988-07-28 Buck Chemisch-Technische Werke GmbH & Co, 7347 Bad Überkingen Infrarot-Störstrahler

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4391195A (en) * 1979-08-21 1983-07-05 Shann Peter C Detonation of explosive charges and equipment therefor
DE4313571C1 (de) * 1993-04-26 1994-08-18 Daimler Benz Ag Rückhaltesystem für Fahrzeuginsassen
JP2004218465A (ja) * 2003-01-10 2004-08-05 Tokai Univ 固体燃料ロケット
DE102006004912A1 (de) * 2006-01-20 2007-07-26 Rheinmetall Waffe Munition Gmbh System zum Schutz insbesondere großer fliegender Plattformen vor infrarot- bzw. radargelenkter Bedrohungen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8714089B2 (en) 2009-05-08 2014-05-06 Rheinmetall Waffe Munition Gmbh Activation unit for explosive masses or explosive bodies
US20230100261A1 (en) * 2020-03-11 2023-03-30 Strictly Fx, Llc Pyrotechnic launch units and systems
US11898832B2 (en) * 2020-03-11 2024-02-13 Strictly Fx, Llc Pyrotechnic launch units and systems
US12044515B2 (en) 2023-03-30 2024-07-23 Strictly Fx, Llc Pyrotechnic launch units and systems

Also Published As

Publication number Publication date
DE102009030868B4 (de) 2014-01-16
DE102009030868A1 (de) 2011-01-05

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