EP0255515A1 - Smoke-producing projectile. - Google Patents

Smoke-producing projectile.

Info

Publication number
EP0255515A1
EP0255515A1 EP86901835A EP86901835A EP0255515A1 EP 0255515 A1 EP0255515 A1 EP 0255515A1 EP 86901835 A EP86901835 A EP 86901835A EP 86901835 A EP86901835 A EP 86901835A EP 0255515 A1 EP0255515 A1 EP 0255515A1
Authority
EP
European Patent Office
Prior art keywords
propellant charge
charge
mist
smoke
chamber
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
EP86901835A
Other languages
German (de)
French (fr)
Other versions
EP0255515B1 (en
Inventor
Willi Lubbers
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.)
Nico Pyrotechnik Hanns Juergen Diederichs GmbH and Co KG
Original Assignee
Nico Pyrotechnik Hanns Juergen Diederichs GmbH and Co KG
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 Nico Pyrotechnik Hanns Juergen Diederichs GmbH and Co KG filed Critical Nico Pyrotechnik Hanns Juergen Diederichs GmbH and Co KG
Priority to AT86901835T priority Critical patent/ATE44819T1/en
Publication of EP0255515A1 publication Critical patent/EP0255515A1/en
Application granted granted Critical
Publication of EP0255515B1 publication Critical patent/EP0255515B1/en
Expired legal-status Critical Current

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
    • F42B5/145—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
    • 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

Definitions

  • the invention relates to a smoke ejection body according to the preamble of patent claim 1.
  • Mist projectors of the type specified in the introduction are known from DE-OS 15 78 348. They are used primarily for the self-protection of vehicles of all kinds, in particular also for battle tanks, and are therefore carried by these vehicles and shot from throwing cups arranged on the outside of the vehicle.
  • Conventional throwing beers which are widespread in large numbers, are designed for a maximum gas pressure of approximately 13.5 bar, so that only a propellant charge consisting essentially of black powder can be used for ejecting the smoke throwing body, which generates a correspondingly low gas pressure.
  • the black powder propellant charges which have been customary to date also have the disadvantage that they heavily contaminate the electrical contact connections for the ignition of the smoke projectors. In particular, if cleaning is not possible immediately after the ejection of the smoke ejection body, severe corrosion phenomena occur which lead to contact difficulties and at least make it more difficult to eject a smoke ejection body again.
  • the invention has for its object to provide an improved smoke ejection body, with which faster self-protection can be generated faster than with conventional smoke ejection bodies and when it is ejected, contact contamination of the ejection cup which can impair operational safety can be avoided.
  • Fig. 1 a longitudinal section through the smoke nozzle
  • FIG. 3 shows a plan view of the bottom of the propellant charge chamber shown on an enlarged scale
  • Fig. 4 a longitudinal section through the bottom of the propellant charge chamber.
  • Fig. 1 shows a longitudinal section of a smoke ejector 1, which comprises a can 10, preferably manufactured in the deep-drawing process, in which the fog charge 12 is pressed.
  • the box 10 is closed by a cover 14, which has two contact rings 13 separated from one another by an insulating ring 15 on its circumference.
  • the throwing cup not shown here, which consists essentially of a cylindrical jacket and a bottom, has resilient and insulated contact pins mounted in the throwing cup jacket at the level of the said contact rings, via which a voltage is applied when the mist launcher 1 is fired. Over with the contact rings.
  • an ignition charge 19 in the form of an electrical squib is applied to this voltage (FIG. 1, FIG. 2).
  • the conventional black powder propellant charge is also ignited in this way and generates 1 propellant charge gases for the ejection of the smoke chute, the pressure level of which does not exceed the load capacity of the throwing cup.
  • Conventional black powder propellant charges heavily pollute the contact media and therefore impair operational safety.
  • the invention aims to improve self-protection by throwing smoke throwing bodies with a larger fog charge, without exceeding the permissible pressure level with greatly increased operational reliability. It enables this by creating a new type of drive, which will be described in more detail below. While in conventional black powder propellant charges a certain pressure level, which does not exceed the maximum load capacity of the throwing cup, is generated, which decreases continuously after the beginning of the acceleration phase of the smoke ejection body to be ejected until it is completely ejected, the invention ensures that in the throwing cup despite acceleration of the mist el practically until its final ejection, a constant pressure level remains within the maximum pressure capacity of the throwing cup, whereby the mist body to be ejected is constantly accelerated.
  • the Nebelwur foresi foresi 1 designed according to the invention has a high-pressure-resistant propellant charge chamber 20 in which a high-calorie smoke-poor powder, for. B. is a nitroglycerin powder 21 as a propellant charge ang eord ne t, which is ignited electrically by the primer 19.
  • the propellant charge chamber 20 inserted into the cover 14 of the smoke chute 1 consists of an essentially pot-shaped housing 20d, which is closed with a screw-in cover 20a.
  • a capillary bore 20b, 20c is arranged in each of the two end faces of the propellant charge chamber 20 and is provided with a cover 18a, 18b, e.g. B.
  • a comparatively high pressure of the order of approximately 1000 bar builds up by converting the propellant charge powder 21 in the propellant charge chamber 20.
  • the high-tension propellant gas formed in the propellant charge chamber 20 enters the bore 20b, tears the cover 18b and then enters an annular trench-shaped depression, which is delimited by the outer wall of the discharge cup and an outstanding support mandrel in its center, on which the ready-to-fire fog thrower 1 rests.
  • the high-tension propellant gases are throttled in such a way that only a pressure level which does not exceed its maximum load capacity is established in the throwing cup.
  • this pressure level is maintained in the throwing cup until the Nebelsturfanalysis 1 has completely emerged from the throwing cup.
  • a constant acceleration can be achieved during the dwell time of Nebelspür redesign 1 in the throwing cup, whereby the same throwing ranges can be achieved with heavier Nebelwerfer.
  • the bore 18b is expediently arranged at an angle, and preferably in an angle ⁇ of 18 ° to 25, preferably 20 °, to the longitudinal axis 40 (FIG. 4) of the propellant charge chamber 20 in order to get the propellant charge gases into the annular circumferential recess of the throwing cup, not shown to let.
  • the diameter of the bore 20b is between 1 ram and 1.4 mm. In a particularly advantageous embodiment of the invention, the diameter of the bore 20b is 1.2 mm.
  • a capillary bore 20c is also arranged in the end face of the propellant charge chamber 20 facing the fog charge 12, which is used for storage purposes is initially also closed with a cover 18a. After the propellant charge 21 has been ignited, the hot propellant charge gases also enter the bore 20c, penetrate the cover 18a and then ignite the mist charge 12 in an area 12a adjacent to the bore 20c, in which the mist charge 12 surrounds a depression 12b.
  • the mist generated from the burning mist load 12 can emerge undisturbed through openings 10a which are distributed uniformly over the circumference of the mist elf body, so that it quickly emerges forms a smoke screen providing privacy.
  • the tearing out of the thread 14a and the detachment of the cover 14 are favored in that the part of the cover 14 which surrounds the high-pressure propellant charge chamber 20, which is made of steel, and in particular also the external thread 14a carried by it, are made of plastic, while the internal thread connected to the box 10 is made of steel.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Air Bags (AREA)
  • Toys (AREA)
  • Elimination Of Static Electricity (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Emergency Lowering Means (AREA)
  • Tents Or Canopies (AREA)

Abstract

Le projectile (1) comprend une chambre (20) de stockage d'un agent de propulsion consistant en une poudre dégageant peu de fumée (21) et susceptible d'être mise en action par une amorce (19) commandée électriquement. Un orifice capillaire (20b, 20c) est aménagé dans chaque paroi frontale de la chambre (20). Des gaz de propulsion à haute pression traversent la conduite capillaire (20b) vers la chambre de propulsion non représentée pour produire une accélération régulière du projectile (1) ce qui permet la projection de projectiles fumigènes plus lourds. L'allumage de la charge fumigène (12) se fait à travers l'autre orifice capillaire (20c).The projectile (1) comprises a chamber (20) for storing a propellant consisting of a powder giving off little smoke (21) and capable of being put into action by an electrically controlled primer (19). A capillary orifice (20b, 20c) is provided in each front wall of the chamber (20). High pressure propellant gases pass through the capillary pipe (20b) to the propulsion chamber (not shown) to produce a regular acceleration of the projectile (1) which allows the projection of heavier smoke projectiles. The smoke charge (12) is ignited through the other capillary orifice (20c).

Description

Nebelwurfkörper Smoke missile
Die Erfindung betrifft e inen Nebelwurfkörper nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a smoke ejection body according to the preamble of patent claim 1.
Nebelwurfkörper der eingangs näher bezeichneten Art sind aus der DE-OS 15 78 348 bekannt. Sie dienen vornehmlich zum Selbstschutz von Fah r z e ug e n a l l e r Art, insbesondere auch von Kampfpanzern und werden deshalb von diesen Fahrzeugen mitgeflihrt und aus von außen am Fahrzeug angeordneten Wurfbechern abgeschossen. Herkömmliche, in großen Stückzahlen verbreitete Wurfbeeher sind für einen maximalen Gasdruck von etwa 13,5 Bar ausgelegt, so daß zum Auswerfen der Nebelwurfkörper nur ein im wesentlichen aus Schwarzpulver bestehender Treibladungssatz verwendet werden kann, der einen entsprechend geringen Gasdruck erzeugt. Obwohl es wegen der damit erreichbaren besseren Schutzwirkung erwünscht ist, NebeIwurfkörper mit einer größeren Nebelladung vom schutzsuchenden Fahrzeug auszuwerfen, ist dies mit den herkömmlichen Wurfbech«rn aufgrund ihrer vergleichsweise geringen Druckfestigkeit nicht ohne weiteres möglich. Die bisher üblichen Schwarzpulvertreibladungen haben darüberhinaus noch den Nachteil, daß sie die elektrischen Kontaktanschlüsse für die Zündung der Nebelwurfkörper stark verschmutzen. Insbesondere dann, wenn unmittelbar nach dem Auswerfen der Nebelwurfkörper keine Reinigung möglich ist, treten starke Korrosionserscheinungen auf, die zu Kontakt Schwierigkeiten führen und einen wiederholten Auswurf eines Nebelwurfkörpers zumindest erschweren.Mist projectors of the type specified in the introduction are known from DE-OS 15 78 348. They are used primarily for the self-protection of vehicles of all kinds, in particular also for battle tanks, and are therefore carried by these vehicles and shot from throwing cups arranged on the outside of the vehicle. Conventional throwing beers, which are widespread in large numbers, are designed for a maximum gas pressure of approximately 13.5 bar, so that only a propellant charge consisting essentially of black powder can be used for ejecting the smoke throwing body, which generates a correspondingly low gas pressure. Although it is desirable to eject throwing bodies with a larger fog load from the vehicle seeking protection because of the better protective effect which can be achieved thereby, this is not readily possible with conventional throwing cups because of their comparatively low pressure resistance. The black powder propellant charges which have been customary to date also have the disadvantage that they heavily contaminate the electrical contact connections for the ignition of the smoke projectors. In particular, if cleaning is not possible immediately after the ejection of the smoke ejection body, severe corrosion phenomena occur which lead to contact difficulties and at least make it more difficult to eject a smoke ejection body again.
Der Erfindung liegt die Aufgabe zugrunde, einen verbesserten Nebelwurfkörper anzugeben, mit dem, schneller als bei bisher üblichen Nebelwurfkörpern, ein sicherer Selbstschutz erzeugbar ist und bei dessen Auswurf eine die Betriebssicherheit beeinträchtigende Kontaktverschmutzung des Auswurfbechers vermeidbar ist.The invention has for its object to provide an improved smoke ejection body, with which faster self-protection can be generated faster than with conventional smoke ejection bodies and when it is ejected, contact contamination of the ejection cup which can impair operational safety can be avoided.
Diese Aufgabe wird ausgehend von einem Nebelwurfkörper der eingangs näher beschriebenen Art durch die im kennzeichnenden Teil des Patentanspruchs 1 angegebenen Merkmale gelöst.This object is achieved on the basis of a smoke nozzle of the type described in more detail above by the features specified in the characterizing part of patent claim 1.
Vorteilhafte Ausgestaltungen und Weiterbildungen des Nebelwurfkörpers gehen aus den Unteransprüchen hervor.Advantageous refinements and developments of the mist casting body are evident from the subclaims.
Die Erfindung wird nachfolgend unter Bezugnahme auf die Zeichnung näher erläutert. Dabei zeigt:The invention is explained in more detail below with reference to the drawing. It shows:
Fig. 1: einen Längsschnitt durch den Nebelwurfkörper;Fig. 1: a longitudinal section through the smoke nozzle;
Fig. 2: einen Längsschnitt durch den Boden des Nebelwurfkörpers;2 shows a longitudinal section through the bottom of the smoke-throwing body;
Fig. 3: eine Aufsicht auf den im vergrößerten Maßstab dargestellten Boden der Treibladungskammer;3 shows a plan view of the bottom of the propellant charge chamber shown on an enlarged scale;
Fig. 4: einen Längsschnitt durch den Boden der Treibladungskammer. Fig. 1 zeigt im Längsschnitt einen Nebelwurfkörper 1, der eine vorzugsweise im Tiefziehverfahren hergestellte Dose 10 umfaßt, in der die Nebelladung 12 eingepreßt ist. Die Dose 10 ist durch einen Deckel 14 abgeschlossen, der auf seinem Umfang zwei von einem Isolierring 15 voneinander getrennte Kontaktringe 13 aufweist. Der hier nicht dargestellte Wurfbecher, der im wesentlichen aus einem zylindrischen Mantel und einem Boden besteht, weist in Höhe der genannten Kontaktringe federnd und isoliert im Wurfbechermantel gelagerte Kontaktstifte auf, über die beim Abfeuern des Nebelwurfkörpers 1 eine Spannung angelegt wird. Über mit den Kontaktringen. 13 verbundene elektrische Leitungen 19a wird mit dieser Spannung eine Zündladung 19 in Form einer elektrischen Zündpille beaufschlagt (Fig. 1, Fig. 2). Auch die herkömmliche Schwarzpulvertreibladung wird auf diese Weise angezündet und erzeugt zum Auswurf des Nebelwurfkörpers 1 Treibladungsgase, deren Druckniveau die Belastbarkeit der Wurfbecher nicht überschreitet. He rkömml i che Schwarzpulvertreibladungen verschmutzen j e d o ch die Kontaktmittel sehr stark und beeinträchtigen daher die Betriebssicherheit.Fig. 4: a longitudinal section through the bottom of the propellant charge chamber. Fig. 1 shows a longitudinal section of a smoke ejector 1, which comprises a can 10, preferably manufactured in the deep-drawing process, in which the fog charge 12 is pressed. The box 10 is closed by a cover 14, which has two contact rings 13 separated from one another by an insulating ring 15 on its circumference. The throwing cup, not shown here, which consists essentially of a cylindrical jacket and a bottom, has resilient and insulated contact pins mounted in the throwing cup jacket at the level of the said contact rings, via which a voltage is applied when the mist launcher 1 is fired. Over with the contact rings. 13 connected electrical lines 19a, an ignition charge 19 in the form of an electrical squib is applied to this voltage (FIG. 1, FIG. 2). The conventional black powder propellant charge is also ignited in this way and generates 1 propellant charge gases for the ejection of the smoke chute, the pressure level of which does not exceed the load capacity of the throwing cup. Conventional black powder propellant charges heavily pollute the contact media and therefore impair operational safety.
Die Erfindung bezweckt eine Verbesserung des Selbstschutzes durch Werfen von Nebelwurfkörpern mit größerer Nebel ladung, ohne Überschreitung des zulässigen Druckniveaus mit stark gesteigerter Betriebssicherheit. Sie ermöglicht dies durch Schaffung eines neuartigen, nachfolgend noch näher beschriebenen Antriebs. Während bei herkömmlichen Schwarzpulvertreibladungen nach deren Anzünden ein bestimmtes, die maximale Belastbarkeit des Wurfbechers nicht übersteigendes Druckniveau erzeugtwird, das nach Beg inn der Beschleunigungsphase des auszuwerfenden Nebelwurfkörpers bis zu dessen völligen Ausstoßen ständig abnimmt, sorgt die Erfindung dafür, daß im Wurfbecher trotz Beschleunigung des Neb e l wur fkörpers praktisch bis zu dessen endgültigen Auswerfen, ein konstantes Druckniveau innerhalb der maximalen Druckbelastbarkeit des Wurfbechers verbleibt, wodurch der auszustoßende Nebel wurfkörper ständig beschleunigt wird. Dazu verfügt der erfindungsgemäß ausgestaltete Nebelwur fkörper 1 über eine hochdruckfeste Treibladungskammer 20, in der ein hochkalor iges rauchschwaches Pulver, z. B. ein Nitroglyzerinpulver 21 als Treibladung ang e o r d ne t ist, das von der Zündladung 19 elektrisch gezündet wird. Die in den Deckel 14 des Nebelwurfkörpers 1 eingesetzte Treibladungskamraer 20 besteht aus einem im wesentlichen topffδrmig ausgebildeten Gehäuse 20d, das mit e i nem einschraubbaren Deckel 20a verschlossen ist. In beiden Stirnflächen der Treibladungskammer 20 ist je eine Kapillarbohrung 20b, 20c angeordnet, die zur Verbesserung der Lagerfähigkeit mit einer Abdeckung 18a, 18b, z. B. einer selbstklebenden Folie aus Me'tall oder Kunststoff abgedeckt sind. Durch diese Abdeckung wird der Eintritt von Feuchtigkeit zur Treibladung 21 verhindert. Nach Anzünden der Treibladung 21 durch elektrische Zündung der Zündladung 19 über die Kontäktringe 13 und die Anschlußdrähte 19a baut sich durch Umsetzung des Treibladungspulvers 21 in der Treibladungskammer 20 ein vergleichsweise hoher Druck in der Größenordnung von etwa 1000 Bar auf. Das in der Treibladungskammer 20 gebildete hochgespannte Treibladungsgas gelangt in die Bohrung 20b, zerreißt die Abdeckung 18b und tritt dann in eine ringgrabenförmige Vertiefung ein, die von der Außenwandung des Abwurfbechers und einer in seinem Zentrum hervorragenden Auflagedorn, auf dem der abschußbereite Nebelwur fkörpr 1 ruht, begrenzt wird. Durch geeigneteBemessung der Bohrung 20b werden die hochgespannten Treibladungsgase derart gedrosselt, daß sich im Wurfbecher nur ein dessen maximale Belastbarkeit nicht übersteigendes Druckniveau einstellt. Da jedoch dur c h die Bohrung 20b auch nach beginnender Beschleunigung des Nebelwur fkörpers 1 ständig Treibladungsgas nachgeliefert wird, wird im Wurfbecher dieses Druckniveau solange aufrechterhalten, bis der Nebelwurfkörper 1 vollständig aus dem Wurfbecher ausgetreten ist. Auf diese Weise läßt sich - anders als bei herkömmlichen Nebelwur fkörpern - während der Verweildauer des Nebelwurfkörpers 1 im Wurfbecher eine konstante Beschleunigung erzielen, wodurch sich gleiche Wurfreichweiten mit schwereren Nebelwurfkörpern erzielen lassen. Die Bohrung 18b ist dabei zweckmäßig winklig angeordnet, und zwar vorzugsweise in einen: Winkel α von 18º bis 25 vorzugsweise 20° zur Längsachse 40 (Fig. 4) der Treibladungskammer 20, um die Treibladungsgase in die ringförmig umlaufende Ausnehmung des nicht dargestellten Wurfbechers gelangen zu lassen. Der Durchmesser der Bohrung 20b liegt zwischen 1 ram und 1,4 mm. In einem besonders vorteilhaften Ausführungsbeispiel der Erfindung b e t rä g t der Durchmesser der Bohrung 20b 1,2 mm .The invention aims to improve self-protection by throwing smoke throwing bodies with a larger fog charge, without exceeding the permissible pressure level with greatly increased operational reliability. It enables this by creating a new type of drive, which will be described in more detail below. While in conventional black powder propellant charges a certain pressure level, which does not exceed the maximum load capacity of the throwing cup, is generated, which decreases continuously after the beginning of the acceleration phase of the smoke ejection body to be ejected until it is completely ejected, the invention ensures that in the throwing cup despite acceleration of the mist el practically until its final ejection, a constant pressure level remains within the maximum pressure capacity of the throwing cup, whereby the mist body to be ejected is constantly accelerated. For this purpose, the Nebelwur fkörper 1 designed according to the invention has a high-pressure-resistant propellant charge chamber 20 in which a high-calorie smoke-poor powder, for. B. is a nitroglycerin powder 21 as a propellant charge ang eord ne t, which is ignited electrically by the primer 19. The propellant charge chamber 20 inserted into the cover 14 of the smoke chute 1 consists of an essentially pot-shaped housing 20d, which is closed with a screw-in cover 20a. A capillary bore 20b, 20c is arranged in each of the two end faces of the propellant charge chamber 20 and is provided with a cover 18a, 18b, e.g. B. a self-adhesive film made of metal or plastic. This cover prevents moisture from entering the propellant charge 21. After ignition of the propellant charge 21 by electrical ignition of the primer charge 19 via the contact rings 13 and the connecting wires 19a, a comparatively high pressure of the order of approximately 1000 bar builds up by converting the propellant charge powder 21 in the propellant charge chamber 20. The high-tension propellant gas formed in the propellant charge chamber 20 enters the bore 20b, tears the cover 18b and then enters an annular trench-shaped depression, which is delimited by the outer wall of the discharge cup and an outstanding support mandrel in its center, on which the ready-to-fire fog thrower 1 rests. By appropriately dimensioning the bore 20b, the high-tension propellant gases are throttled in such a way that only a pressure level which does not exceed its maximum load capacity is established in the throwing cup. However, since propellant gas is continuously supplied through the bore 20b even after acceleration of the Nebelwur fkörpers 1 begins, this pressure level is maintained in the throwing cup until the Nebelsturfkörper 1 has completely emerged from the throwing cup. In this way - unlike conventional Nebelwur fkörpern - a constant acceleration can be achieved during the dwell time of Nebelspürkörper 1 in the throwing cup, whereby the same throwing ranges can be achieved with heavier Nebelwerfer. The bore 18b is expediently arranged at an angle, and preferably in an angle α of 18 ° to 25, preferably 20 °, to the longitudinal axis 40 (FIG. 4) of the propellant charge chamber 20 in order to get the propellant charge gases into the annular circumferential recess of the throwing cup, not shown to let. The diameter of the bore 20b is between 1 ram and 1.4 mm. In a particularly advantageous embodiment of the invention, the diameter of the bore 20b is 1.2 mm.
Auch in der der Nebelladung 12 zugewandten Stirnfläche der Treibladungskammer 20 ist eine Kapillarbohrung 20c angeordnet, die für Lagerungszwecke zunächst ebenfalls noch mit einer Abdeckung 18a verschlossen ist. Nach Anzünden der Treibladung 21 treten die heißen Treibladungsgase auch in die Bohrung 20c ein, durchschlagen die Abdeckung 18a und entzünden dann die Nebelladung 12 in einem der Bohrung 20c benachbarten Bereich 12a, in dem d i e Nebelladung 12 eine Vertiefung 12b umgibt. Durch das Zünden der Nebelladung 12 in deren Bereich 12a baut sich zwischen der Nebelladung 12 und dem die Dose 10 verschließenden Deckel 14 des Nebelwurfkörpers 1 ein hoher Druck auf, der schließlich dazu führt, daß das Gewinde 14a, mit dem der Deckel 14 am Neb elwurfkörper befestigt ist, nachzugeben beginnt und schließlich ausreißt, so daß sich zwischen Deckel 14 und dem durch d i e s e n verschlossenen Querschnitt des Nebelwur fkörpers 1 ein Ringspalt bildet, durch den die angestauten NebelSchwaden austreten können. Auf diese Weise wird schon während des Fluges des Nebelwurfkörpers 1 durch kegelmantelförmig verlaufende Nebelschleppen der einzelnen Nebelwurfkörper 1 ein dichter, Anfangs schutz bietender Neb el v o rh an g erzeugt. Nach Niederfallen des Nebelwurfkörpers 1 - der Deckel 14 wurde schon noch während des Flugs völlig abgesprengt - kann der aus der brennenden Nebelladung 12 erzeugte Nebel ungestört durch gleichmäßig auf dem Umfang des Neb e l wur fkö rpe r s verteilt angeordnete Öffnungen 10a austreten, so daß sich s c h n e l l eine Sichtschutz bietende Nebelwand bildet.A capillary bore 20c is also arranged in the end face of the propellant charge chamber 20 facing the fog charge 12, which is used for storage purposes is initially also closed with a cover 18a. After the propellant charge 21 has been ignited, the hot propellant charge gases also enter the bore 20c, penetrate the cover 18a and then ignite the mist charge 12 in an area 12a adjacent to the bore 20c, in which the mist charge 12 surrounds a depression 12b. By igniting the mist charge 12 in the area 12a, a high pressure builds up between the mist charge 12 and the lid 14 of the mist launcher 1 which closes the can 10, which ultimately leads to the thread 14a with which the cover 14 on the mist launcher is attached, begins to yield and finally tears out, so that an annular gap is formed between the cover 14 and the cross-section of the Nebelwur fkörper 1 closed by this, through which the pent-up fog clouds can emerge. In this way, a dense, initially protection-providing mist el vo rh an g is generated during the flight of the mist launcher 1 by dragging the individual mist launcher 1 in the shape of a tapered jacket. After the mist throwing body 1 has fallen down - the cover 14 has already been blown off completely during the flight - the mist generated from the burning mist load 12 can emerge undisturbed through openings 10a which are distributed uniformly over the circumference of the mist elf body, so that it quickly emerges forms a smoke screen providing privacy.
Das Ausreißen des Gewindes 14a und die Abtrennung des Deckels 14 werden dadurch begünstigt, daß der die aus Stahl bestehende ho c hd r uc k f e s t e Treibladungskammer 20 umschließende Teil des Deckels 14, insbesondere also auch das von ihm getragene Außengewinde 14a, aus Kunststoff bestehen, während das mit der Dose 10 verbundene Innengewinde in Stahl ausgeführt ist. Die aus Stahl bestehende Treibladungskammer 20 schirmt in vorteilhafter und zuverlässiger Weise die elektrisch aktivierbare Zündladung 19 gegen starke elektromagnetische Impulse ab, die ansonsten eine unerwünschte Zündung bewirken könnten.The tearing out of the thread 14a and the detachment of the cover 14 are favored in that the part of the cover 14 which surrounds the high-pressure propellant charge chamber 20, which is made of steel, and in particular also the external thread 14a carried by it, are made of plastic, while the internal thread connected to the box 10 is made of steel. The propellant charge chamber 20, which is made of steel, shields the electrically activatable ignition charge 19 against strong electromagnetic pulses, which could otherwise cause undesired ignition, in an advantageous and reliable manner.
Die aus der Treibladung 21 erzeugten Treibladungsgase, die - wie zuvor beschrieben - durch die Bohrung 20b in den Wurfbecher eintreten, führen zu keiner merkbaren Verunreinigung bzw. Korrosion der im Wurfbecher angeordneten Kontaktstifte und ermöglichen daher ein betriebssicheres wiederholtes Be s c h i c ke n des Wurfbechers und Abfeuern von Nebelwurfkörpern 1 ohne besondere Reinigungsmaßnahmen. Auf diese Weise lassen sich die Wartungskosten erheblich reduzieren und die BetriebsSicherheit steigern. The propellant gases generated from the propellant charge 21, which - as described above - enter the throwing cup through the bore 20b, do not lead to any noticeable contamination or corrosion of the contact pins arranged in the throwing cup and therefore enable the throwing cup to be operated reliably and fired of smoke projectors 1 without special cleaning measures. In this way, maintenance costs can be significantly reduced and operational reliability increased.

Claims

P a t e n t a n s p r ü c h e Patent claims
1. Nebeiwurfkörper aus einer vorzugsweise im Tiefziehverfahren hergestellten Dose zur Aufnahme der Nebelladung, sowie einem, eine Zündladung, eine Treibladung und auf seinem Umfang elektrische Kontaktringe tragenden Deckel, d a d u r c h g e k e n n z e i c h n e t, daß die Zündladung (19) und die Treibladung (21) in einer im Deckel (14) befestigten, im wesentlichen hohlzylindrisch ausgebildeten, hochdruckfesten Treibladungskammer (20) angeordnet sind, in deren Stirnflächen je eine Kapillarbohrung (20b, 20c) angeordnet ist.1. Nebeiwurfkörper from a preferably manufactured in the deep-drawing process for receiving the mist charge, and a, an ignition charge, a propellant charge and on its circumference electrical contact ring-carrying cover, characterized in that the ignition charge (19) and the propellant charge (21) in a in the lid (14) attached, essentially hollow cylindrical, high-pressure-resistant propellant charge chamber (20) are arranged, in the end faces of which a capillary bore (20b, 20c) is arranged.
2. Nebelwurfkörper nach Anspruch 1, d a d u r c h g ek e n n z e i c h n e t, daß die Treibladungskammer (20) als Treibladung (21) ein rauchschwaches Pulver, z. B. ein Nitroglyzerinpulver enthält. 2. mist ejection body according to claim 1, dadurchg ek indicates that the propellant charge chamber (20) as propellant charge (21) is a low-smoke powder, for. B. contains a nitroglycerin powder.
3. Nebelwurfkörper nach einem der Ansprüche 1 und 2, d a d u r c h g e k e n n z e i c h n e t, daß die Kapillarbohrung (20b) im Boden (20a) der Treibladungskammer (20) winklig in Bezug auf die Längsachse (40) der Treibladungskammer (20) angeordnet ist und mit dieser vorzugsweise einen Winkel von α = 20º einschließt, und daß der Durchmesser der Bohrung (20b) zwischen 1 mm und 1,4 mm, vorzugsweise jedoch 1,2 mm beträgt.3. mist launcher according to one of claims 1 and 2, characterized in that the capillary bore (20b) in the bottom (20a) of the propellant charge chamber (20) is arranged at an angle with respect to the longitudinal axis (40) of the propellant charge chamber (20) and with this preferably one Includes angle of α = 20 °, and that the diameter of the bore (20b) is between 1 mm and 1.4 mm, but preferably 1.2 mm.
4. NebeIwurfkörper nach einem der Ansprüche 1 bis 3, d a d u r c h g e k e n n z e i c h n e t, daß die Treibladungskammer (20) aus Stahl besteht und in einem aus Kunststoff bestehenden Deckel (14) eingebettet ist.4. throwing body according to one of claims 1 to 3, d a d u r c h g e k e n n z e i c h n e t that the propellant charge chamber (20) consists of steel and is embedded in a plastic cover (14).
5. Nebelwurfkörper nach einem der Ansprüche 1 bis 4, d a d u r c h g e k e n n z e i c h n e t, daß die Bohrungen (20b, 20c) durch je eine Abdeckung (18a, 18b), vorzugsweise aus einer selbst klebenden Folie abgedeckt sind.5. Mist projectile according to one of claims 1 to 4, that the bores (20b, 20c) are each covered by a cover (18a, 18b), preferably made of a self-adhesive film.
6. NebeIwurfkörper nach einem der Ansprüche 1 bis 5 d a d u r c h g e k e n n z e i c h n e t, daß die Nebelladung (12) in einem der Öffnung (20c) gegenüberliegenden Bereich (12a) eine Ausnehmung (12b) aufweist. 6. Adjective body according to one of claims 1 to 5 d a d u r c h g e k e n n z e i c h n e t that the fog charge (12) in a region (12a) opposite the opening (20a) has a recess (12b).
EP86901835A 1985-03-22 1986-02-25 Smoke-producing projectile Expired EP0255515B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86901835T ATE44819T1 (en) 1985-03-22 1986-02-25 FOG BODY.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853510367 DE3510367A1 (en) 1985-03-22 1985-03-22 FOGGED BODY
DE3510367 1985-03-22

Publications (2)

Publication Number Publication Date
EP0255515A1 true EP0255515A1 (en) 1988-02-10
EP0255515B1 EP0255515B1 (en) 1989-07-19

Family

ID=6265997

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86901835A Expired EP0255515B1 (en) 1985-03-22 1986-02-25 Smoke-producing projectile

Country Status (14)

Country Link
US (1) US4727811A (en)
EP (1) EP0255515B1 (en)
JP (1) JPS62501795A (en)
AU (1) AU575249B2 (en)
CA (1) CA1267037A (en)
DE (2) DE3510367A1 (en)
DK (1) DK425986A (en)
ES (1) ES8705969A1 (en)
FI (1) FI864531A0 (en)
GR (1) GR860344B (en)
IL (1) IL77981A (en)
NZ (1) NZ215537A (en)
WO (1) WO1986005582A1 (en)
ZA (1) ZA861794B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3800599A1 (en) * 1988-01-12 1989-07-27 Feistel Pyrotech Fab CONTACT HEAD FOR QUICK MIST SHOOTING BODIES
US4998479A (en) * 1988-06-15 1991-03-12 Perham William J Smoke generating device with rechargable cartridge
DE4328581A1 (en) * 1993-08-25 1995-03-02 Nico Pyrotechnik Smoke missile
FR2730048B1 (en) * 1995-01-31 1997-03-28 Princhim Sa IMPROVEMENTS TO A SMOKE CASE

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US1039870A (en) * 1912-02-03 1912-10-01 Krupp Ag Burning fuse for projectiles.
US2307369A (en) * 1941-04-22 1943-01-05 Clyde B Ferrel Projectile
FR1265039A (en) * 1959-08-13 1961-06-23 Wefo Pyrotechnische Fabrik Wis Smoke candle and its launching mortar
FR2207318B1 (en) * 1972-11-21 1976-04-23 Nickel Le
US4135455A (en) * 1977-02-03 1979-01-23 Tracor, Inc. Multiple payload cartridge employing single pair of electrical connections
US4164186A (en) * 1977-10-21 1979-08-14 The United States Of America As Represented By The Secretary Of The Navy Submarine signal fuze
NO142929C (en) * 1978-03-08 1980-11-12 Raufoss Ammunisjonsfabrikker ROEYKBOKS.
DE2932921C2 (en) * 1979-08-14 1984-10-31 Buck Chemisch-Technische Werke Gmbh & Co, 8230 Bad Reichenhall Contact head for throwing bodies that can be locked from electrically operated throwing cups
DE2932922C2 (en) * 1979-08-14 1983-12-01 Buck Chemisch-Technische Werke Gmbh & Co, 8230 Bad Reichenhall Smoke missile
DE3246173A1 (en) * 1982-12-14 1984-06-14 Rheinmetall GmbH, 4000 Düsseldorf AMMUNITION, ESPECIALLY FOR STEAP FIRE
DE3565426D1 (en) * 1984-04-03 1988-11-10 Feistel Pyrotech Fab Smoke-producing projectile

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Title
See references of WO8605582A1 *

Also Published As

Publication number Publication date
IL77981A (en) 1990-12-23
DE3664534D1 (en) 1989-08-24
JPS62501795A (en) 1987-07-16
GR860344B (en) 1986-06-26
AU575249B2 (en) 1988-07-21
JPH0447239B2 (en) 1992-08-03
EP0255515B1 (en) 1989-07-19
ES8705969A1 (en) 1987-06-01
ES552936A0 (en) 1987-06-01
DE3510367A1 (en) 1986-09-25
DK425986A (en) 1986-10-28
FI864531A (en) 1986-11-07
WO1986005582A1 (en) 1986-09-25
ZA861794B (en) 1986-11-26
FI864531A0 (en) 1986-11-07
DK425986D0 (en) 1986-09-05
AU5628886A (en) 1986-10-13
NZ215537A (en) 1988-02-29
US4727811A (en) 1988-03-01
CA1267037A (en) 1990-03-27

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