EP0255515B1 - Nebelwurfkörper - Google Patents

Nebelwurfkörper Download PDF

Info

Publication number
EP0255515B1
EP0255515B1 EP86901835A EP86901835A EP0255515B1 EP 0255515 B1 EP0255515 B1 EP 0255515B1 EP 86901835 A EP86901835 A EP 86901835A EP 86901835 A EP86901835 A EP 86901835A EP 0255515 B1 EP0255515 B1 EP 0255515B1
Authority
EP
European Patent Office
Prior art keywords
smoke
charge
propulsive
chamber
fact
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
Application number
EP86901835A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0255515A1 (de
Inventor
Willi Lübbers
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/de
Publication of EP0255515A1 publication Critical patent/EP0255515A1/de
Application granted granted Critical
Publication of EP0255515B1 publication Critical patent/EP0255515B1/de
Expired 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
    • 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 nozzle according to the preamble of patent claim 1.
  • Mist projectors of the type specified in the introduction are known from DE-A-1578348. They serve primarily for the self-protection of vehicles of all kinds, in particular also of battle tanks, and are therefore carried by these vehicles and shot down from throwing cups arranged on the outside of the vehicle.
  • Conventional throwing cups which are widespread in large quantities, 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.
  • a propellant charge consisting essentially of black powder
  • the black powder propellant charges that have been customary to date also have the disadvantage that they heavily contaminate the electrical contact connections for the ignition of the smoke projectors.
  • the invention has for its object to provide an improved smoke ejection body, with which, faster than with conventional smoke ejection bodies, a safe self-protection can be generated and when it is ejected, contact contamination of the ejection cup impairing operational safety can be avoided.
  • 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 on its periphery two contact rings 13 separated from one another by an insulating ring 15.
  • 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.
  • An ignition charge 19 in the form of an electric squib is applied to this voltage via electrical lines 19a connected to the contact rings 13 (FIG. 1, FIG. 2).
  • the conventional black powder propellant charge is also ignited in this way and generates 1 propellant charge gases for ejecting the throwing body, the pressure level of which does not exceed the load capacity of the throwing cup.
  • Conventional black powder propellants however, contaminate the contact means very heavily and therefore impair operational safety.
  • the invention aims to improve the self-protection by throwing smoke throwing bodies with a larger fog load, 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.
  • the invention ensures that the throwing cup is practical despite the acceleration of the smoke body until it is finally ejected, a constant pressure level remains within the maximum pressure load capacity of the throwing cup, as a result of which the smoke ejection body to be ejected is constantly accelerated.
  • the throwing body 1 designed according to the invention has a high-pressure-resistant propellant charge chamber 20, in which a high-calorie, low-smoke powder, e.g. B.
  • a nitroglycerin powder 21 is arranged as a propellant charge, which is ignited by the primer 19 electrically.
  • the propellant charge 20 inserted into the cover 14 of the mist-casting body 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 are covered. This cover prevents moisture from entering the propellant charge 21.
  • the propellant charge 21 After ignition of the propellant charge 21 by electrical ignition of the primer charge 19 via the contact ge 13 and the connecting wires 19a builds up by implementing the propellant powder 21 in the propellant chamber 20, a comparatively high pressure in the order of about 1000 bar.
  • 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 dome in its center, on which the ready-to-fire mist launcher 1 rests becomes.
  • 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.
  • the bore 18b is expediently arranged at an angle, and preferably at an angle a 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 allow.
  • the diameter of the bore 20b is between 1 mm 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 and is initially also closed with a cover 18a for storage purposes. 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.
  • a high pressure builds up between the fog charge 12 and the lid 14 of the smoke nozzle body 1 which closes the can 10, which ultimately leads to the thread 14a with which the lid 14 is attached to the smoke nozzle body is, begins to yield and finally tears out, so that an annular gap is formed between the cover 14 and the cross-section of the muffling body 1 closed by this, through which the pent-up fog can emerge.
  • a dense fog curtain which provides initial protection, is generated during the flight of the smoke ejection body 1 by dragging the individual smoke ejection bodies 1 in a cone-shaped manner.
  • the mist generated from the burning mist load 12 can emerge undisturbed through openings 10a which are evenly distributed over the circumference of the nebulizer body, so that a mist shield is formed which quickly provides 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-resistant 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 that with the can 10 connected internal thread 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.

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)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Emergency Lowering Means (AREA)
  • Tents Or Canopies (AREA)
  • Elimination Of Static Electricity (AREA)
  • Toys (AREA)
EP86901835A 1985-03-22 1986-02-25 Nebelwurfkörper Expired EP0255515B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86901835T ATE44819T1 (de) 1985-03-22 1986-02-25 Nebelwurfkoerper.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3510367 1985-03-22
DE19853510367 DE3510367A1 (de) 1985-03-22 1985-03-22 Nebelwurfkoerper

Publications (2)

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

Family

ID=6265997

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86901835A Expired EP0255515B1 (de) 1985-03-22 1986-02-25 Nebelwurfkörper

Country Status (14)

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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3800599A1 (de) * 1988-01-12 1989-07-27 Feistel Pyrotech Fab Kontaktkopf fuer schnellnebelwurfkoerper
US4998479A (en) * 1988-06-15 1991-03-12 Perham William J Smoke generating device with rechargable cartridge
DE4328581A1 (de) * 1993-08-25 1995-03-02 Nico Pyrotechnik Nebelwurfkörper
FR2730048B1 (fr) * 1995-01-31 1997-03-28 Princhim Sa Perfectionnements apportes a un boitier de fumigene

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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 (fr) * 1959-08-13 1961-06-23 Wefo Pyrotechnische Fabrik Wis Chandelle fumigène et son mortier de lancement
FR2207318B1 (da) * 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 (no) * 1978-03-08 1980-11-12 Raufoss Ammunisjonsfabrikker Roeykboks.
DE2932922C2 (de) * 1979-08-14 1983-12-01 Buck Chemisch-Technische Werke Gmbh & Co, 8230 Bad Reichenhall Nebelwurfkörper
DE2932921C2 (de) * 1979-08-14 1984-10-31 Buck Chemisch-Technische Werke Gmbh & Co, 8230 Bad Reichenhall Kontaktkopf für aus elektrisch betätigbaren Wurfbechern verschießbare Wurfkörper
DE3246173A1 (de) * 1982-12-14 1984-06-14 Rheinmetall GmbH, 4000 Düsseldorf Munition, insbesondere fuer steilfeuer
ATE37746T1 (de) * 1984-04-03 1988-10-15 Feistel Pyrotech Fab Nebelwurfkoerper.

Also Published As

Publication number Publication date
FI864531A (fi) 1986-11-07
AU575249B2 (en) 1988-07-21
GR860344B (en) 1986-06-26
IL77981A (en) 1990-12-23
NZ215537A (en) 1988-02-29
JPS62501795A (ja) 1987-07-16
EP0255515A1 (de) 1988-02-10
ES552936A0 (es) 1987-06-01
DK425986A (da) 1986-10-28
US4727811A (en) 1988-03-01
CA1267037A (en) 1990-03-27
DE3664534D1 (en) 1989-08-24
JPH0447239B2 (da) 1992-08-03
FI864531A0 (fi) 1986-11-07
ZA861794B (en) 1986-11-26
DK425986D0 (da) 1986-09-05
DE3510367A1 (de) 1986-09-25
AU5628886A (en) 1986-10-13
ES8705969A1 (es) 1987-06-01
WO1986005582A1 (en) 1986-09-25

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