EP2427720A1 - Activation unit for explosive masses or explosive bodies - Google Patents

Activation unit for explosive masses or explosive bodies

Info

Publication number
EP2427720A1
EP2427720A1 EP10713857A EP10713857A EP2427720A1 EP 2427720 A1 EP2427720 A1 EP 2427720A1 EP 10713857 A EP10713857 A EP 10713857A EP 10713857 A EP10713857 A EP 10713857A EP 2427720 A1 EP2427720 A1 EP 2427720A1
Authority
EP
European Patent Office
Prior art keywords
activation unit
ejection tube
unit according
explosive
heating
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
EP10713857A
Other languages
German (de)
French (fr)
Other versions
EP2427720B1 (en
Inventor
Nenand Prelic
Oliver Frank
Heribert Eglauer
Florian Huber
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
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
Priority claimed from DE102009020558A external-priority patent/DE102009020558A1/en
Priority claimed from DE200910020557 external-priority patent/DE102009020557B4/en
Application filed by Rheinmetall Waffe Munition GmbH filed Critical Rheinmetall Waffe Munition GmbH
Publication of EP2427720A1 publication Critical patent/EP2427720A1/en
Application granted granted Critical
Publication of EP2427720B1 publication Critical patent/EP2427720B1/en
Not-in-force 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
    • F42B4/00—Fireworks, i.e. pyrotechnic devices for amusement, display, illumination or signal purposes
    • F42B4/26—Flares; Torches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41J—TARGETS; TARGET RANGES; BULLET CATCHERS
    • F41J2/00—Reflecting targets, e.g. radar-reflector targets; Active targets transmitting electromagnetic or acoustic waves
    • F41J2/02—Active targets transmitting infrared radiation
    • 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
    • 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
    • F42B3/12—Bridge initiators
    • 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
    • F42B5/145—Cartridges, i.e. cases with charge and missile for dispensing gases, vapours, powders, particles or chemically-reactive substances
    • 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
    • F42B5/145—Cartridges, i.e. cases with charge and missile for dispensing gases, vapours, powders, particles or chemically-reactive substances
    • F42B5/15—Cartridges, i.e. cases with charge and missile for dispensing gases, vapours, powders, particles or chemically-reactive substances for creating a screening or decoy effect, e.g. using radar chaff or infrared material
    • 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
    • F42B5/145—Cartridges, i.e. cases with charge and missile for dispensing gases, vapours, powders, particles or chemically-reactive substances
    • F42B5/15—Cartridges, i.e. cases with charge and missile for dispensing gases, vapours, powders, particles or chemically-reactive substances for creating a screening or decoy effect, e.g. using radar chaff or infrared material
    • F42B5/155—Smoke-pot projectors, e.g. arranged on vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C11/00—Electric fuzes
    • F42C11/001—Electric circuits for fuzes characterised by the ammunition class or type

Definitions

  • the invention is concerned with an activation unit for particular ammunition-free active materials or active bodies, for example for the formation of decoys.
  • Sham targets and / or fog grenades based on, for example, red phosphorus (RP) or nitrocellulose (NC) are used in military applications, such as fog grenades, aircraft headlight targets operating with infrared (IR) etc.
  • RP red phosphorus
  • NC nitrocellulose
  • the firing of RP units (active bodies) takes place via an igniting or disintegrating charge, which ensures that the bodies can optimally ignite for the respective purpose and thus burn off.
  • DE 10 2007 032 112 A1 describes a so-called jamming, which are fired from a launcher with several launch tubes. The launching is initiated electrically or mechanically. The sub-clocking for triggering the individual flashes of light is controlled by a device integrated in the electronics. To trigger the light or bursting bursts several sub-bodies are ignited timed clocked. For this purpose, these pyrotechnic igniter or ZerlegerA.
  • a launching device for the firing of a plurality of active bodies is characterized by DE 199 10 074 B4.
  • the active bodies that can be fired in this case each have a propellant charge with a lighter, for example a squib, which are in connection with a control unit of the adapter in the assembled state of the active body package and adapter.
  • the invention has the object to show an activation unit that activates such active body to create decoys.
  • the invention is the o. G.
  • the idea is to activate (ignite) the active materials / flare material by supplying thermal energy. This avoids the use of explosives.
  • the active body of this is thus applied in a suitable form with thermal energy. This can be achieved by pushing the active body, which as a rule consists of individual flares, through an ignition tube for activation.
  • the "ejection” can be pneumatic or mechanical.
  • a high-temperature activation element which consists essentially of n-heating elements, which are arranged radially separated from each other radially around the circumference of a Anzündrohres.
  • the geometry of the activation unit is not necessarily a circular cylinder.
  • the heating elements can also be adapted to other geometries, for example to a rectangular cylinder.
  • the material selection of the individual heating elements allows temperatures> 600 0 C, wherein the heating elements are designed so that they allow extremely dynamic heating due to low mass.
  • the outer jacket of the heating wire of the heating elements preferably consists of a high-temperature-resistant steel with a high CrNi content.
  • z. B. ceramic inlays by minimizing heat losses for further thermal optimization.
  • the heating elements are designed so that they ensure an ideal energy input into the active body for the application.
  • the heating element can also z. B. with contact plates o. ⁇ . Be provided for better energy transfer.
  • An extremely short response time of the heating elements is achieved by means of an appropriate control technology, ie, the heating-up time from the switch-on point to the reaching of the nominal temperature is extremely short (small or low).
  • the number of heating elements used is arbitrary and therefore optional and can basically be made up in any form.
  • the energy input can be ideally adjusted by selecting the number n of the heating elements and / or by an adapted control technology.
  • the ignition of the active body by contact with the heating elements but also can be done without contact. For this it is possible to activate the active body in the "flyby".
  • This form of activation allows the use of non explosive decoys in the civil environment, not only in civil aviation, but also in civilian naval and land vehicles.
  • the design and safety requirements for decoys and dispensers without explosives are simpler, that is, much lower.
  • the ignition unit or device allows a variety of ignitions, while the classic flares is intended for single use only.
  • the extremely high CrNi content realizes high corrosion resistance, high temperature resistance and higher wear resistance.
  • the special sheathing and guidance of the elements ensures the watertightness of the heating elements.
  • the sheathing is potential-free, so classic short-circuit bridges are excluded.
  • a slight power adjustment by length change or simple circuit change of the heating elements is also possible.
  • By a preferably multi-circuit current flow through the n-heating elements the reliability can be increased.
  • the non-contact and flexible suspension / integration of the heating elements makes it possible that only small losses occur and that a better contact can be created.
  • the active body tolerances can be better compensated by clean management of the active body package.
  • Fig. 5 shows a to be transported from the ejection tube active body.
  • the high-temperature activation unit 1 consists essentially of an ejection tube 2, from which an active body 3 (FIG. 5), not shown here, is ejected in the direction of arrow P.
  • the ejection tube 2 is comprised on its inner side / surface of high-temperature heating elements 4, wherein each individual element 4 is formed from a heating wire 6, which protected against external influences enclosed in a jacket 7 and preferably in a heat loss minimizing material, preferably in a ceramic - Inlay 8, is embedded.
  • the outer jacket 7 of the heating element 4 is in the preferred embodiment of a high temperature resistant steel with high CrNi-Aneil.
  • the ceramics 8 are enclosed for mechanical relief in the metal structure of the ejection tube 2, wherein the metal structure corresponds to the outer shape of the active body 3, here a cylindrical shape. Alternative forms are also possible.
  • the heating wires 6 are supplied by an appropriate control technology (not shown in detail) with the corresponding electrical energy and thereby heated to> 600 ° C.
  • the ceramic inlays 8 in turn improve the energy balance of the respective heating element 4 and thereby ensures a more efficient energy input from the active body 3.
  • Fig. 2 shows a variant of the arrangement and the structure in the ceramic inlay 8 embedded heating element 4 again.
  • Fig. 3 shows a further variant of the activation unit V with ejection tube 2 'again.
  • the heating wire surface is increased by at least one example soldered contact plate 13, whereby the contact surface of the heating wire 14 is increased to the active body 3.
  • the ejection tube 2 ' has a heat insulation 15, for example, formed by one / more ceramic liners (s).
  • Fig. 4 shows another embodiment of the activation unit 1 "with ejection tube 2".
  • short heating elements 10 are used similar to the previous one.
  • Fig. 5 the structure of the active body 3 is shown. This is characterized by several Einzelflares 9.
  • the active body 3 is pushed through the activation unit 1 (1 ', 1 "), for example, with a plunger (ejection unit - not shown in more detail.) As the active body 3 passes through the activation unit 1, the active body 3 makes contact with the individual elements 4 on its lateral surface The thermal energy is transferred (directly or indirectly) to the active body 3 by the heating wires 6 (14), which ignites at the contact or contact points After emerging from the activation unit, the active body 3 can be fully ignited and deploy its radiation (IR radiation).
  • IR radiation radiation
  • non-contact activation is also possible, as already mentioned, whereby it must be ensured that the individual flares 9 of the active body 3 ignite.

Abstract

The invention relates to an activation unit (1) for explosive masses or explosive bodies (3), characterized by an ejector tube (2) and high-performance heating elements (4) mounted around the ejector tube (2), each made of at least one heating wire (6) supplied with electrical power by a control unit. Each heating wire (6) is enclosed in a jacket (7) and at least embedded in a material minimizing heat loss. When the explosive body (3) is passed through the activation unit (1), the jacket surface of the explosive body (3) contacts the individual elements (4) of the activation unit (1) in a direct or non-contact manner. The thermal energy is transferred to the explosive body (3) by means of the heating wires (6), and said body ignites at the contact points. A further activation unit (1', 1") comprises heating elements (10, 10') in the ejector tube (2', 2") at least partially fed longitudinally through the ejector tube (2', 2") made of heating wire (14) clad with CrNi steel (11) and contact tabs (13) soldered thereto.

Description

BESCHREIBUNG DESCRIPTION
Aktivierungseinheit für Wirkmassen bzw. WirkkörperActivation unit for active substances or active bodies
Die Erfindung beschäftigt sich mit einer Aktivierungseinheit für insbesondere munitionsfreie Wirkmassen bzw. Wirkkörpern beispielsweise zum Bilden von Scheinzielen.The invention is concerned with an activation unit for particular ammunition-free active materials or active bodies, for example for the formation of decoys.
Scheinziele und / oder Nebelgranaten auf Basis von beispielsweise Rot- Phosphor (RP) oder Nitrocellulose (NC) finde Anwendung bei militärischen Applikationen, wie beispielsweise Nebelgranaten, Infrarot (IR) wirkenden Luftfahrzeugscheinzielen etc. Die Nebel- bzw. IR- Wirkung entfaltet der RP / NC nach entsprechender Zündung durch Abbrennen. Die Anzündung von RP- Einheiten (Wirkkörpern) erfolgt über eine Anzünd- oder Zerlegeladung, die dafür sorgt, dass die Körper für den jeweiligen Zweck optimal zünden und so abbrennen können.Sham targets and / or fog grenades based on, for example, red phosphorus (RP) or nitrocellulose (NC) are used in military applications, such as fog grenades, aircraft headlight targets operating with infrared (IR) etc. The fog or IR effect unfolds in the RP / NC after appropriate ignition by burning off. The firing of RP units (active bodies) takes place via an igniting or disintegrating charge, which ensures that the bodies can optimally ignite for the respective purpose and thus burn off.
Die DE 10 2007 032 112 A1 beschreibt einen so genannten Jamming, die aus einer Abschussvorrichtung mit mehreren Abschussrohren verschossen werden. Der Abschuss erfolgt elektrisch oder mechanisch initiiert. Die Subtaktung zur Auslösung der einzelnen Lichtblitzt wird durch eine in der Vorrichtung eingebundene Elektronik gesteuert. Zur Auslösung der Licht- bzw. Zerlegerblitze werden mehrere Subkörper zeitlich getaktet gezündet. Dazu weisen diese pyrotechnische Zünd- bzw. Zerlegersätze auf.DE 10 2007 032 112 A1 describes a so-called jamming, which are fired from a launcher with several launch tubes. The launching is initiated electrically or mechanically. The sub-clocking for triggering the individual flashes of light is controlled by a device integrated in the electronics. To trigger the light or bursting bursts several sub-bodies are ignited timed clocked. For this purpose, these pyrotechnic igniter or Zerlegersätze.
Eine Abschussvorrichtung für das Verschießen einer Mehrzahl von Wirkkörpern zeichnet die DE 199 10 074 B4 aus. Die hierbei verschießbaren Wirkkörper weisen jeweils eine Treibladung mit einem Anzünder, beispielsweise eine Zündpille auf, die in Verbindung mit einer Steuereinheit des Adapters im zusammengebauten Zustand von Wirkkörperpaket und Adapter stehen.A launching device for the firing of a plurality of active bodies is characterized by DE 199 10 074 B4. The active bodies that can be fired in this case each have a propellant charge with a lighter, for example a squib, which are in connection with a control unit of the adapter in the assembled state of the active body package and adapter.
Der Einsatz von derartigen Scheinzielen im zivilen Luftverkehr ist aufgrund des Munitionsanteils nicht möglich, da Explosivstoffe in diesem Zusammenhang nicht akzeptiert werden und internationale Sicherheitsabkommen etc. einzuhalten sind.The use of such decoys in civil aviation is not possible because of the ammunition share, as explosives are not accepted in this context and international security agreements, etc. are respected.
Aufgrund dessen wurde ein neues Anzündkonzept entwickelt, dass ohne explosive und / oder pyrophore Stoffe zur Zündung von RP-/ NC- Flares auskommt. Dieses neue Anzündkonzept wird in der DE 10 2006 004 912 A1 näher beschrieben. Aus ihr ist ein System zum Schutz insbesondere großer fliegende Plattformen, wie Flugzeuge, vor IR bzw. Radar gelenkter Bedrohung bekannt. Dabei erfolgt die Aktivierung bzw. Anzündung der Wirkkörper bevorzugt berührungslos. Das Ausstoßen der Wirkkörper wird dann pneumatisch oder mechanisch durchgeführt. Die Wirkkörper selbst sind munitionsfreie Pakete, die mittels Heißluft oder einem Laser angezündet werden.As a result, a new ignition concept has been developed that eliminates the need for explosive and / or pyrophoric materials to ignite RP / NC flares. This new ignition concept is described in more detail in DE 10 2006 004 912 A1. It is a system known to protect in particular large flying platforms, such as aircraft, IR or radar-directed threat known. 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.
Aufbauend auf diese Aktivierung stellt sich der Erfindung die Aufgabe, eine Aktivierungseinheit aufzuzeigen, die derartige Wirkkörper zur Schaffung von Scheinzielen aktiviert.Based on this activation, the invention has the object to show an activation unit that activates such active body to create decoys.
Gelöst wird die Aufgabe durch die Merkmale des Patentanspruchs 1 sowie 7. Vorteilhafte Ausführungen sind den Unteransprüchen entnehmbar.The problem is solved by the features of claim 1 and 7. Advantageous embodiments are the dependent claims.
Grundsätzlich liegt der Erfindung die o. g. Idee zugrunde, die Wirkmassen / Flarematerial durch Zufuhr von thermischer Energie zu aktivieren (zu zünden). Dadurch wird der Einsatz von Explosivstoffen vermieden.Basically, the invention is the o. G. The idea is to activate (ignite) the active materials / flare material by supplying thermal energy. This avoids the use of explosives.
Zur Aktivierung des Wirkkörpers wird dieser also in einer geeigneten Form mit thermischer Energie beaufschlagt. Dies kann dadurch gelöst werden, dass der Wirkkörper, bestehend in der Regel aus Einzelflares, zur Aktivierung durch ein Anzündrohr gestoßen wird. Das „Ausstoßen" kann pneumatisch oder mechanisch erfolgen.To activate the active body of this is thus applied in a suitable form with thermal energy. This can be achieved by pushing the active body, which as a rule consists of individual flares, through an ignition tube for activation. The "ejection" can be pneumatic or mechanical.
Dazu besitzt ein Anzündrohr, aus dem die Wirkmassen ausgestoßen werden, ein Hochtemperatur- Aktivierungselement, welches im Wesentlichen aus n- Heizelementen besteht, die geometrische voneinander getrennt radial um den Umfang eines Anzündrohres angeordnet sind. Die Geometrie der Aktivierungseinheit ist nicht zwingend ein Kreiszylinder. Die Heizelemente können auch anderen Geometrien angepasst werden, beispielsweise an einen Rechteckzylinder.For this purpose, has an ignition tube, from which the active masses are ejected, a high-temperature activation element, which consists essentially of n-heating elements, which are arranged radially separated from each other radially around the circumference of a Anzündrohres. The geometry of the activation unit is not necessarily a circular cylinder. The heating elements can also be adapted to other geometries, for example to a rectangular cylinder.
Die Materialauswahl der einzelnen Heizelemente ermöglicht Temperaturen > 6000C, wobei die Heizelemente so ausgelegt sind, dass sie aufgrund geringer Massen eine äußerst dynamische Aufheizung erlauben. Der Außenmantel des Heizdrahtes der Heizelemente besteht bevorzugt aus einem hoch temperaturfesten Stahl mit hohem CrNi- Anteil. Des Weiteren sorgen z. B. Keramik - Inlays durch die Minimierung von Wärmeverlusten für eine weitere thermische Optimierung. Die Heizelemente werden so ausgelegt, dass sie für die Anwendung einen idealen Energieeintrag in den Wirkkörper gewährleisten. Das Heizelement kann zudem z. B. mit Kontaktblechen o. ä. zur besseren Energieübertragung versehen werden. Durch diese thermische Opti- mierung und einer entsprechenden Regelungstechnik wird eine äußerst kurze Reaktionszeit der Heizelemente erreicht, d.h., die Aufheizzeit vom Einschaltpunkt bis zum Erreichen der Nenntemperatur ist äußerst kurz (klein bzw. gering).The material selection of the individual heating elements allows temperatures> 600 0 C, wherein the heating elements are designed so that they allow extremely dynamic heating due to low mass. The outer jacket of the heating wire of the heating elements preferably consists of a high-temperature-resistant steel with a high CrNi content. Furthermore, z. B. ceramic inlays by minimizing heat losses for further thermal optimization. The heating elements are designed so that they ensure an ideal energy input into the active body for the application. The heating element can also z. B. with contact plates o. Ä. Be provided for better energy transfer. Through this thermal optimization An extremely short response time of the heating elements is achieved by means of an appropriate control technology, ie, the heating-up time from the switch-on point to the reaching of the nominal temperature is extremely short (small or low).
Die Anzahl der verwendeten Heizelemente ist beliebig und damit wahlweise und kann grundsätzlich in jeder Form konfektioniert werden. So kann für jede Applikation der Energieeintrag zum einen durch die Wahl der Anzahl n der Heizelemente und / oder zum anderen durch eine ange- passte Regelungstechnik ideal eingestellt werden.The number of heating elements used is arbitrary and therefore optional and can basically be made up in any form. Thus, for each application, the energy input can be ideally adjusted by selecting the number n of the heating elements and / or by an adapted control technology.
Je nach Anwendung kann die Anzündung des Wirkkörpers durch Kontakt mit den Heizelementen aber auch berührungslos erfolgen. Dazu ist es möglich, den Wirkkörper im „Vorbeiflug" zu aktivieren.Depending on the application, the ignition of the active body by contact with the heating elements but also can be done without contact. For this it is possible to activate the active body in the "flyby".
Diese Form der Aktivierung ermöglicht die Nutzung von Scheinzielen ohne Explosivstoffe im zivilen Umfeld, nicht nur im zivilen Luftverkehr, sondern auch bei zivilen Seezielen und Landfahrzeugen. Die konstruktiven und sicherheitstechnischen Anforderungen an Scheinzielen und Dispenser ohne Explosivstoffe sind einfacher, d.h., wesentlich niedriger. Die Anzündeinheit bzw. -Vorrichtung erlaubt eine Vielzahl von Anzündungen, während die bei klassischen Flares nur für den einmaligen Gebrauch bestimmt ist.This form of activation allows the use of non explosive decoys in the civil environment, not only in civil aviation, but also in civilian naval and land vehicles. The design and safety requirements for decoys and dispensers without explosives are simpler, that is, much lower. The ignition unit or device allows a variety of ignitions, while the classic flares is intended for single use only.
Der extrem hohe CrNi- Anteil realisiert eine hohe Korrosionsfähigkeit, die hohe Temperaturfestigkeit und eine höhere Verschleißfestigkeit. Die besondere Ummantelung und Führung der Elemente gewährleistet die Wasserdichtigkeit der Heizelemente. Die Ummantelung ist potentialfrei, somit sind klassische Kurzschlussbrücken ausgeschlossen. Eine leichte Leistungsanpassung durch Längenänderung oder einfache Schaltungsänderung der Heizelemente ist gleichfalls möglich. Durch eine vorzugsweise mehrkreisige Stromführung durch die n- Heizelemente kann die Funktionssicherheit erhöht werden. Die kontaktfreie sowie flexible Aufhängung / Einbindung der Heizelemente ermöglicht, dass nur geringe Verluste auftreten und dass eine bessere Kontaktie- rung geschaffen werden kann. Die Wirkkörpertoleranzen könne durch saubere Führung des Wirkkörperpaketes besser ausgeglichen werden.The extremely high CrNi content realizes high corrosion resistance, high temperature resistance and higher wear resistance. The special sheathing and guidance of the elements ensures the watertightness of the heating elements. The sheathing is potential-free, so classic short-circuit bridges are excluded. A slight power adjustment by length change or simple circuit change of the heating elements is also possible. By a preferably multi-circuit current flow through the n-heating elements, the reliability can be increased. The non-contact and flexible suspension / integration of the heating elements makes it possible that only small losses occur and that a better contact can be created. The active body tolerances can be better compensated by clean management of the active body package.
Die Praxis hat gezeigt, dass eine großflächige Anzündung (ca. 80% Fläche) bei geringer Masse (und somit bei minimaler thermischer Trägheit zur Gewährleistung dynamischer Heizregelung) erreicht wird.Practice has shown that a large area ignition (approximately 80% area) is achieved with low mass (and thus with minimal thermal inertia to ensure dynamic heating control).
Anhand eines Ausführungsbeispiels mit Zeichnung soll die Erfindung näher erläutert werden. Es zeigt: Fig. 1 eine Aktivierungseinheit mit Ausstoßrohr für einen Wirkkörper,Reference to an embodiment with drawing, the invention will be explained in more detail. It shows: 1 an activation unit with ejection tube for an active body,
Fig. 2 Heizelemente der Aktivierungseinheit aus Fig. 1 ,2 heating elements of the activation unit of Fig. 1,
Fig. 3 eine Variante des Aufbaus des Ausstoßrohre,3 shows a variant of the structure of the ejection tubes,
Fig. 4 eine weitere Ausführungsform des Ausstoßrohres,4 shows a further embodiment of the ejection tube,
Fig. 5 einen aus dem Ausstoßrohr zu befördernden Wirkkörper.Fig. 5 shows a to be transported from the ejection tube active body.
In Fig. 1 ist mit 1 eine Aktivierungseinheit in einer Schnittdarstellung bezeichnet. Die Hochtemperatur - Aktivierungseinheit 1 besteht im Wesentlichen aus einem Ausstoßrohr 2, aus dem ein hier nicht näher dargestellter Wirkkörper 3 (Fig. 5) in Pfeilrichtung P ausgestoßen wird. Das Ausstoßrohr 2 wird an seiner Innenseite /-fläche von Hochtemperatur- Heizelementen 4 umfasst, wobei jedes Einzelelement 4 aus einem Heizdraht 6 gebildet wird, dass gegen äußere Einflüsse geschützt in einem Mantel 7 eingefasst und vorzugsweise in einem Wärmeverlust minimierenden Material, bevorzugt in einem Keramik- Inlay 8, eingebettet ist. Der Außenmantel 7 des Heizelementes 4 besteht in der bevorzugten Ausführung aus einem hoch temperaturfesten Stahl mit hohem CrNi-Aneil. Die Keramiken 8 sind zur mechanischen Entlastung in der Metallstruktur des Ausstoßrohres 2 eingefasst, wobei die Metallstruktur der Außenform des Wirkkörpers 3 entspricht, hier einer Zylinderform. Alternative Formen sind ebenfalls möglich.In Fig. 1, 1 is an activation unit in a sectional view. The high-temperature activation unit 1 consists essentially of an ejection tube 2, from which an active body 3 (FIG. 5), not shown here, is ejected in the direction of arrow P. The ejection tube 2 is comprised on its inner side / surface of high-temperature heating elements 4, wherein each individual element 4 is formed from a heating wire 6, which protected against external influences enclosed in a jacket 7 and preferably in a heat loss minimizing material, preferably in a ceramic - Inlay 8, is embedded. The outer jacket 7 of the heating element 4 is in the preferred embodiment of a high temperature resistant steel with high CrNi-Aneil. The ceramics 8 are enclosed for mechanical relief in the metal structure of the ejection tube 2, wherein the metal structure corresponds to the outer shape of the active body 3, here a cylindrical shape. Alternative forms are also possible.
Die Heizdrähte 6 werden durch eine entsprechende Regelungstechnik (nicht näher dargestellt) mit der entsprechenden elektrischen Energie versorgt und dadurch auf >600°C erhitzt. Die Keramik- Inlays 8 ihrerseits verbessern den Energiehaushalt des jeweiligen Heizelementes 4 und sorgt dabei für einen effizienteren Energieeintrag aus den Wirkkörper 3.The heating wires 6 are supplied by an appropriate control technology (not shown in detail) with the corresponding electrical energy and thereby heated to> 600 ° C. The ceramic inlays 8 in turn improve the energy balance of the respective heating element 4 and thereby ensures a more efficient energy input from the active body 3.
Fig. 2 gibt eine Variante der Anordnung und des Aufbaus im Keramik- Inlay 8 eingebetteten Heizelementes 4 wieder.Fig. 2 shows a variant of the arrangement and the structure in the ceramic inlay 8 embedded heating element 4 again.
Fig. 3 gibt eine weitere Variante der Aktivierungseinheit V mit Ausstoßrohres 2' wieder. Mit 10 sind hier längs durch das Rohr 2' geführte Heizelemente mit CrNi- Stahl- Ummantelung 11 bezeichnet, dessen Heizdrahtfläche durch wenigstens ein beispielsweise aufgelötetes Kontaktblech 13 vergrößert wird, wodurch auch die Kontaktfläche des Heizdrahtes 14 zum Wirkkörper 3 vergrößert wird. Das Ausstoßrohr 2' besitzt eine Wärmeisolierung 15, beispielsweise gebildet durch ein / mehrere Keramik -lnlay(s). Fig. 4 zeigt eine andere Ausführungsform des Aktivierungseinheit 1" mit Ausstoßrohr 2". Hierbei werden kurze Heizelemente 10" ähnlich der vorherigen eingesetzt.Fig. 3 shows a further variant of the activation unit V with ejection tube 2 'again. With 10 are here longitudinally through the tube 2 'guided heating elements with CrNi steel casing 11, the heating wire surface is increased by at least one example soldered contact plate 13, whereby the contact surface of the heating wire 14 is increased to the active body 3. The ejection tube 2 'has a heat insulation 15, for example, formed by one / more ceramic liners (s). Fig. 4 shows another embodiment of the activation unit 1 "with ejection tube 2". Here, short heating elements 10 "are used similar to the previous one.
In Fig. 5 ist der Aufbau des Wirkkörpers 3 aufgezeigt. Dieser zeichnet sich durch mehrere Einzelflares 9 aus.In Fig. 5, the structure of the active body 3 is shown. This is characterized by several Einzelflares 9.
Die Funktion ist wie folgt:The function is as follows:
Der Wirkkörper 3 wird beispielsweise mit einem Stößel (Eject - Unit - nicht näher dargestellt) durch die Aktivierungseinheit 1 (1', 1") gestoßen. Beim Durchtreten des Wirkkörpers 3 durch die Aktivierungseinheit 1 kontaktiert der Wirkkörper 3 an seiner Mantelfläche mit den Einzelelementen 4 der Aktivierungseinheit 1. Durch die Heizdrähte 6 (14) wird die thermische Energie (direkt oder indirekt) auf den Wirkkörper 3 übertragen, der sich an den Berührungs- bzw. Kontaktpunkten entzündet. Nach dem Austreten aus der Aktivierungseinheit kann sich der Wirkkörper 3 voll durchzünden und seine Strahlung (IR- Strahlung) entfalten.The active body 3 is pushed through the activation unit 1 (1 ', 1 "), for example, with a plunger (ejection unit - not shown in more detail.) As the active body 3 passes through the activation unit 1, the active body 3 makes contact with the individual elements 4 on its lateral surface The thermal energy is transferred (directly or indirectly) to the active body 3 by the heating wires 6 (14), which ignites at the contact or contact points After emerging from the activation unit, the active body 3 can be fully ignited and deploy its radiation (IR radiation).
Alternativ zur direkten Kontaktierung ist auch, wie bereits erwähnt, eine berührungslose Aktivierung möglich, wobei sichergestellt werden muss, dass sich die Einzelflare 9 des Wirkkörpers 3 entzünden. As an alternative to direct contacting, non-contact activation is also possible, as already mentioned, whereby it must be ensured that the individual flares 9 of the active body 3 ignite.

Claims

PATENTANSPRÜCHE
1. Aktivierungseinheit (1) für munitionsfreie Wirkmassen bzw. Wirkkörper (3), gekennzeichnet durch ein Ausstoßrohr (2), sowie im Ausstoßrohr (2) angebrachte Hochleis- tungs- Heizelemente (4), bestehend zumindest jeweils aus einem Heizdraht (6), der seinerseits durch eine Regelungseinheit mit elektrischem Strom versorgt wird.1. activation unit (1) for ammunition-free active masses or active body (3), characterized by an ejection tube (2), and in the ejection tube (2) mounted high-performance heating elements (4), each consisting at least of a heating wire (6) which in turn is supplied by a control unit with electric current.
2. Aktivierungseinheit nach Anspruch 1 , dadurch gekennzeichnet, dass jeder Heizdraht (6) in einem Mantel (7) eingefasst ist.2. Activation unit according to claim 1, characterized in that each heating wire (6) is enclosed in a jacket (7).
3. Aktivierungseinheit nach Anspruch 2, dadurch gekennzeichnet, dass der Mantel (7) ein hoch temperaturfester Stahl mit hohem CrNi- Anteil ist.3. Activation unit according to claim 2, characterized in that the jacket (7) is a high-temperature-resistant steel with a high CrNi content.
4. Aktivierungseinheit nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der jeweilige Heizdraht (6) zumindest in einem Wärmeverlust minimierenden Material eingebettet ist.4. Activation unit according to one of claims 1 to 3, characterized in that the respective heating wire (6) is embedded at least in a heat loss minimizing material.
5. Aktivierungseinheit nach Anspruch 4, dadurch gekennzeichnet, dass das Material ein Keramik -Inlay (8) ist.5. Activation unit according to claim 4, characterized in that the material is a ceramic inlay (8).
6. Aktivierungseinheit nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Heizelemente (4) in den Keramiken (8) zur mechanischen Entlastung in einer Metallstruktur des Ausstoßrohres (2) eingefasst sind, wobei die Metallstruktur der jeweiligen Außenform des Wirkkörpers (3) entspricht.6. Activation unit according to one of claims 1 to 5, characterized in that the heating elements (4) in the ceramics (8) for mechanical relief in a metal structure of the ejection tube (2) are enclosed, wherein the metal structure of the respective outer shape of the active body (3 ) corresponds.
7. Aktivierungseinheit (T, 1") für munitionsfreie Wirkmassen bzw. Wirkkörper (3), gekennzeichnet durch ein Ausstoßrohr (2', 2"), sowie im Ausstoßrohr (2', 2") zumindest teilweise durch das Ausstoßrohr (21, 2") längsgeführte Heizelemente (10, 10') mit CrNi- Stahl ummanteltem (11) Heizdraht (14) und darauf aufgelöteten Kontaktblechen (13).7. Activation unit (T, 1 ") for ammunition-free active masses or active body (3), characterized by an ejection tube (2 ', 2"), as well as in the ejection tube (2', 2 ") at least partially through the ejection tube (2 1 , 2 ") longitudinally guided heating elements (10, 10 ') with CrNi steel coated (11) heating wire (14) and soldered thereon contact plates (13).
8. Aktivierungseinheit nach Anspruch 7, dadurch gekennzeichnet, dass die Heizelemente (10) längs durch die gesamte Länge des Ausstoßrohres (2') geführt sind.8. Activation unit according to claim 7, characterized in that the heating elements (10) are guided longitudinally through the entire length of the ejection tube (2 ').
9. Aktivierungseinheit nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass das Ausstoßrohr (2', 2") eine Wärmeisolierung (15), beispielsweise gebildet durch ein / mehrere Keramik -lnlay(s) aufweist. 9. Activation unit according to claim 7 or 8, characterized in that the ejection tube (2 ', 2 ") has a heat insulation (15), for example formed by one / more ceramic Lnlay (s).
10. Aktivierungseinheit nach Anspruch 9, dadurch gekennzeichnet, dass die Wärmeisolierung (15) an der Innenfläche des Ausstoßrohres (2\ 2") zwischen den ummantelten Heizdrähten (14) und dem Ausstoßrohr (2', 2") eingebunden ist. 10. Activation unit according to claim 9, characterized in that the thermal insulation (15) on the inner surface of the ejection tube (2 \ 2 ") between the coated heating wires (14) and the ejection tube (2 ', 2") is integrated.
EP10713857.0A 2009-05-08 2010-04-16 Activation unit for explosive masses or explosive bodies Not-in-force EP2427720B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102009020558A DE102009020558A1 (en) 2009-05-08 2009-05-08 Activation unit for ammunition-free decoys
DE200910020557 DE102009020557B4 (en) 2009-05-08 2009-05-08 Activation unit for active substances or active bodies
PCT/EP2010/002332 WO2010127762A1 (en) 2009-05-08 2010-04-16 Activation unit for explosive masses or explosive bodies

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EP2427720A1 true EP2427720A1 (en) 2012-03-14
EP2427720B1 EP2427720B1 (en) 2014-02-26

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EP10713857.0A Not-in-force EP2427720B1 (en) 2009-05-08 2010-04-16 Activation unit for explosive masses or explosive bodies

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US (2) US8714089B2 (en)
EP (1) EP2427720B1 (en)
KR (1) KR20120014134A (en)
AU (1) AU2010244780B2 (en)
CA (1) CA2761215A1 (en)
IL (1) IL216169A (en)
SG (2) SG10201402195PA (en)
WO (1) WO2010127762A1 (en)

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US20140352565A1 (en) 2014-12-04
AU2010244780A1 (en) 2011-11-03
SG175735A1 (en) 2011-12-29
SG10201402195PA (en) 2014-10-30
US20120137913A1 (en) 2012-06-07
AU2010244780B2 (en) 2015-04-02
EP2427720B1 (en) 2014-02-26
KR20120014134A (en) 2012-02-16
US8714089B2 (en) 2014-05-06
CA2761215A1 (en) 2010-11-11
WO2010127762A1 (en) 2010-11-11
IL216169A (en) 2015-11-30
IL216169A0 (en) 2012-01-31

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