EP0810416B1 - Pyrotechnic delay tube - Google Patents

Pyrotechnic delay tube Download PDF

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Publication number
EP0810416B1
EP0810416B1 EP97108283A EP97108283A EP0810416B1 EP 0810416 B1 EP0810416 B1 EP 0810416B1 EP 97108283 A EP97108283 A EP 97108283A EP 97108283 A EP97108283 A EP 97108283A EP 0810416 B1 EP0810416 B1 EP 0810416B1
Authority
EP
European Patent Office
Prior art keywords
delay
bores
diameter
casing
delay tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP97108283A
Other languages
German (de)
French (fr)
Other versions
EP0810416A2 (en
EP0810416A3 (en
Inventor
Günter Berg
Winfried Röper
Dieter Faust
Erwin Wrobel
Klaus Meyer
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.)
Diehl Stiftung and Co KG
Original Assignee
Diehl Stiftung 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 Diehl Stiftung and Co KG filed Critical Diehl Stiftung and Co KG
Publication of EP0810416A2 publication Critical patent/EP0810416A2/en
Publication of EP0810416A3 publication Critical patent/EP0810416A3/en
Application granted granted Critical
Publication of EP0810416B1 publication Critical patent/EP0810416B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42BEXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00Blasting cartridges, i.e. case and explosive
    • F42B3/10Initiators therefor
    • F42B3/16Pyrotechnic delay initiators

Definitions

  • the invention relates to a pyrotechnic delay tube for Generators, such as fire extinguishing generators according to the preamble of claim 1.
  • a pyrotechnic delay tube consisting of a sleeve, a mechanical ignitable capsule and a delay set arranged in the sleeve used in a practice hand grenade according to AT -B- 396 304.
  • the delay set extends to the bottom end of the sleeve, whereby there is an outlet opening. Lateral outflow openings are not provided that in the axial continuation of the delay tube a pop kit container with a bang set consisting of black powder.
  • the Firing container has side holes in two levels. Prevent this that the critical gas pressure is reached when the pop set is fired Destruction of the pop set container would result.
  • Such an arrangement is for the ignition of a propellant for generators, such as fire extinguishing generators, not suitable.
  • a caseless ammunition is known from DE -A- 18 03 358.
  • a storey core has a central part constricted except for an igniter carrier and a mechanical primer-carrying rear part. There is a in the fuse holder Ignition channel arranged. This ranges from the rear primer to front storey core, with a lateral cross hole the hot ignition gases leads to a propellant charge arranged in the middle part. Because of the two A spherical flame pattern cannot be achieved at the side holes.
  • the invention is based on the object a pyrotechnic delay tube that propose a propellant ignites extensively.
  • a fire extinguisher generator 1 has, among other things, a mechanically actuable one Draw trigger 2 with a delay tube 3 and a housing 4 with a propellant 5 on.
  • the delay tube 3 consists of a sleeve 10 with a through Not shown firing pin triggerable squib 11, a delay set 12, an end face 13 and from, lying in a plane 14 holes 15th
  • the holes 15 are arranged in a star shape according to FIG. 3 and point between an angle 16 of 60 °.
  • the delay set 12 extends almost over the entire cargo space 17 of the sleeve 10. It extends from a distance of unspecified the squib 11 to the bottom 13. The holes 15 are thus immediately in the area of the deceleration set 12.
  • the axial distance 20 from a deepest Point 21 of the bottom 13 is approximately 0.5 to 1.5 of the diameter 22 of the deceleration set 12, the optimized distance 0.9 diameter 22 of the delay set Is 12.
  • the bottom 13 is formed in one piece with the sleeve 10.
  • the diameter 23 of the bores 15 is approximately 0.3 to 0.5 of the diameter 22 of the delay set 12.
  • the optimized diameter is 0.4 des Diameter 22 of the delay set 12th
  • the fire jet causes the primer 11 the front ignition of the delay set 12 at 30.
  • the Focal front, level 14 in which the bores 15 are arranged in a star shape. From the holes 15, the flames 40 radiate in a star or spherical shape to all Pages and reproducibly ignite the propellant 5.
  • the spherical flame pattern with the divergent ones is essential for the invention Flames 40 and the long-lasting flame effect due to the distance 20.
  • the distance 20 represents the so-called flame reserve for the ignition of the Propellant 5 represents the flame front, which after the ignition by the primer 11 moved in the direction of arrow 50 to point 21, reaches the upper edge at 51 of the bores 15.
  • Flame front of propellant charge 12 has a long-lasting flame effect generated.
  • the decisive factor is the record length below 52 below Lower edge 54 of the bores 15.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
  • Toys (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Description

Die Erfindung bezieht sich auf ein pyrotechnisches Verzögerungsröhrchen für Generatoren, wie Feuerlösch-Generatoren nach dem Oberbegriff des Anspruchs 1.The invention relates to a pyrotechnic delay tube for Generators, such as fire extinguishing generators according to the preamble of claim 1.

Bei Feuerlösch-Generatoren ist eine mechanische Anzündung erwünscht, da damit eine mobile Brandbekämpfung möglich ist.Mechanical firing is desirable for fire extinguishing generators because it does mobile fire fighting is possible.

Ein pyrotechnisches Verzögerungsröhrchen, bestehend aus einer Hülse, einer mechanisch zündbaren Kapsel und einem, in der Hülse angeordneten Verzögerungssatz findet bei einer Übungs-Handgranate nach der AT -B- 396 304 Verwendung. Der Verzögerungssatz erstreckt sich bis zum bodenseitigen Ende der Hülse, wobei dort eine Austrittsöffnung vorgesehen ist. Seitliche Abströmöffnungen sind nicht vorgesehen, da in axialer Fortsetzung des Verzögerungsröhrchen ein Knallsatzbehälter mit einem Knallsatz, bestehend aus Schwarzpulver, vorgesehen ist. Der Knallsatzbehälter besitzt in zwei Ebenen seitliche Bohrungen. Diese verhindern, dass bei Zündung des Knallsatzes der kritische Gasdruck erreicht wird, der zur Zerstörung des Knallsatzbehälters führen würde. Eine derartige Anordnung ist für die Anzündung eines Treibsatzes für Generatoren, wie Feuerlösch-Generatoren, nicht geeignet.A pyrotechnic delay tube, consisting of a sleeve, a mechanical ignitable capsule and a delay set arranged in the sleeve used in a practice hand grenade according to AT -B- 396 304. The delay set extends to the bottom end of the sleeve, whereby there is an outlet opening. Lateral outflow openings are not provided that in the axial continuation of the delay tube a pop kit container with a bang set consisting of black powder. The Firing container has side holes in two levels. Prevent this that the critical gas pressure is reached when the pop set is fired Destruction of the pop set container would result. Such an arrangement is for the ignition of a propellant for generators, such as fire extinguishing generators, not suitable.

Aus der DE -A- 18 03 358 ist eine hülsenlose Munition bekannt. Ein Geschosskern weist einen, bis auf einen Zünderträger eingeschnürten Mittelteil und ein, eine mechanische Zündkapsel tragenden Heckteil auf. Im Zünderträger ist ein Zündkanal angeordnet. Dieser reicht von der heckseitigen Zündkapsel bis zum vorderen Geschosskern, wobei eine seitliche Querbohrung die heißen Zündgase zu einer, in dem Mittelteil angeordneten Treibladung leitet. Aufgrund der beiden seitlichen Bohrungen ist ein kugelförmiges Flammbild nicht zu erreichen.A caseless ammunition is known from DE -A- 18 03 358. A storey core has a central part constricted except for an igniter carrier and a mechanical primer-carrying rear part. There is a in the fuse holder Ignition channel arranged. This ranges from the rear primer to front storey core, with a lateral cross hole the hot ignition gases leads to a propellant charge arranged in the middle part. Because of the two A spherical flame pattern cannot be achieved at the side holes.

Ausgehend von der AT -B- 396 304 liegt der Erfindung die Aufgabe zugrunde, ein pyrotechnisches Verzögerungsröhrchen vorzuschlagen, dass einen Treibsatz großflächig anzündet.Starting from AT -B- 396 304, the invention is based on the object a pyrotechnic delay tube that propose a propellant ignites extensively.

Vorteilhafte Weiterbildungen der Erfindung sind den Unteransprüchen zu entnehmen.Advantageous developments of the invention can be found in the subclaims.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt. Es zeigt:

Fig. 1
einen Teil eines Feuerlöschgenerators,
Fig. 2
ein pyrotechnisches Verzögerungsröhrchen im Längsschnitt entsprechend Fig. 1 und
Fig. 3
einen Schnitt III - III nach Fig. 2.
An embodiment of the invention is shown in the drawing. It shows:
Fig. 1
part of a fire extinguisher generator,
Fig. 2
a pyrotechnic delay tube in longitudinal section corresponding to Fig. 1 and
Fig. 3
a section III - III of FIG. 2nd

Ein Feuerlöschgenerator 1 weist unter anderem einen mechanisch betätigbaren Spannabzugzünder 2 mit einem Verzögerungsröhrchen 3 und ein Gehäuse 4 mit einem Treibsatz 5 auf.A fire extinguisher generator 1 has, among other things, a mechanically actuable one Draw trigger 2 with a delay tube 3 and a housing 4 with a propellant 5 on.

Das Verzögerungsröhrchen 3 besteht aus einer Hülse 10 mit einer, durch einen nicht gezeichneten Schlagbolzen auslösbaren Zündkapsel 11, einem Verzögerungssatz 12, einem stirnseitigen Boden 13 und aus, in einer Ebene 14 liegenden Bohrungen 15.The delay tube 3 consists of a sleeve 10 with a through Not shown firing pin triggerable squib 11, a delay set 12, an end face 13 and from, lying in a plane 14 holes 15th

Die Bohrungen 15 sind gemäß Fig. 3 sternförmig angeordnet und weisen zwischen sich einen Winkel 16 von 60° auf.The holes 15 are arranged in a star shape according to FIG. 3 and point between an angle 16 of 60 °.

Der Verzögerungssatz 12 erstreckt sich nahezu über den gesamten Ladungsraum 17 der Hülse 10. Er erstreckt sich ab einem nicht näher bezeichneten Abstand von der Zündkapsel 11 bis zum Boden 13. Damit liegen die Bohrungen 15 unmittelbar im Bereich des Verzögerungssatzes 12. Der axiale Abstand 20 von einem tiefsten Punkt 21 des Bodens 13 beträgt etwa 0,5 bis 1,5 des Durchmessers 22 des Verzögerungssatzes 12, wobei der optimierte Abstand 0,9 Durchmesser 22 des Verzögerungssatzes 12 beträgt.The delay set 12 extends almost over the entire cargo space 17 of the sleeve 10. It extends from a distance of unspecified the squib 11 to the bottom 13. The holes 15 are thus immediately in the area of the deceleration set 12. The axial distance 20 from a deepest Point 21 of the bottom 13 is approximately 0.5 to 1.5 of the diameter 22 of the deceleration set 12, the optimized distance 0.9 diameter 22 of the delay set Is 12.

Der Boden 13 ist mit der Hülse 10 einstückig ausgebildet.The bottom 13 is formed in one piece with the sleeve 10.

Der Durchmesser 23 der Bohrungen 15 beträgt etwa 0,3 bis 0,5 des Durchmessers 22 des Verzögerungssatzes 12. Der optimierte Durchmesser beträgt 0,4 des Durchmessers 22 des Verzögerungssatzes 12.The diameter 23 of the bores 15 is approximately 0.3 to 0.5 of the diameter 22 of the delay set 12. The optimized diameter is 0.4 des Diameter 22 of the delay set 12th

Bei Auslösung des Spannabzugzünders 2 bewirkt der Feuerstrahl der Zündkapsel 11 die stirnseitige Anzündung des Verzögerungssatzes 12 bei 30. Nach einer durch die Länge des Verzögerungssatzes 12 vorgegebenen Zeitverzögerung erreicht die Brennfront die Ebene 14, in der die Bohrungen 15 sternförmig angeordnet sind. Aus den Bohrungen 15 strahlen die Flammen 40 stern- bzw. kugelförmig nach allen Seiten und zünden reproduzierbar den Treibsatz 5 an. When the trigger trigger 2 is triggered, the fire jet causes the primer 11 the front ignition of the delay set 12 at 30. After a through the length of the delay set 12 predetermined time delay reaches the Focal front, level 14, in which the bores 15 are arranged in a star shape. From the holes 15, the flames 40 radiate in a star or spherical shape to all Pages and reproducibly ignite the propellant 5.

Wesentlich für die Erfindung ist das kugelförmige Flammbild mit den divergierenden Flammen 40 und die langanhaltende Flammwirkung aufgrund des Abstandes 20. Der Abstand 20 stellt die sogenannte Flammreserve für die Anzündung des Treibsatzes 5 dar. Die Flammfront, die sich nach der Anzündung durch die Zündkapsel 11 in Pfeilrichtung 50 bis zum Punkt 21 bewegt, erreicht bei 51 die Oberkante der Bohrungen 15. Durch die weiter in Pfeilrichtung 50 sich nach unten bewegende Flammfront des Treibsatzes 12 wird eine langanhaltende Flammwirkung erzeugt. Entscheidend ist daher die mit 52 bezeichnete Satzlänge unterhalb der Unterkante 54 der Bohrungen 15.The spherical flame pattern with the divergent ones is essential for the invention Flames 40 and the long-lasting flame effect due to the distance 20. The distance 20 represents the so-called flame reserve for the ignition of the Propellant 5 represents the flame front, which after the ignition by the primer 11 moved in the direction of arrow 50 to point 21, reaches the upper edge at 51 of the bores 15. By moving downward in the direction of arrow 50 Flame front of propellant charge 12 has a long-lasting flame effect generated. The decisive factor is the record length below 52 below Lower edge 54 of the bores 15.

Claims (4)

  1. Pyrotechnic delay tube (3) for generators, such as fire-extinguishing generators, consisting of a casing (10), a mechanically ignitable detonator cap (11), and a delay composition (12) disposed in the casing (10),
    the delay composition (12) extending as far as the base end of the casing (10),
    characterized in that
    the casing (10) is closed at the front end in direction of burning (50) and has lateral, calibrated bores (15) in the region of the closed end (13);
    the bores (15) are disposed in the shape of a star in a single plane (14), and the delay composition (12) rests against the base ( 13, 21 ) at the burning end.
  2. Delay tube according to Claim 1,
    characterized in that
    the bores (15) are offset in relation to one another by an angle (16) of 60°.
  3. Delay tube according to Claim 1,
    characterized in that
    the axial distance (20) between the bores (15) and the base (13) is approximately 0.5 to 1.5 times the diameter (22) of the delay composition (12).
  4. Delay tube according to Claim 1,
    characterized in that
    the diameter (23) of the bores (15) is approximately 0.3 to 0.5 times the diameter (22) of the delay composition (12).
EP97108283A 1996-05-29 1997-05-22 Pyrotechnic delay tube Expired - Lifetime EP0810416B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29609498U DE29609498U1 (en) 1996-05-29 1996-05-29 Pyrotechnic delay tube
DE29609498U 1996-05-29

Publications (3)

Publication Number Publication Date
EP0810416A2 EP0810416A2 (en) 1997-12-03
EP0810416A3 EP0810416A3 (en) 1999-05-19
EP0810416B1 true EP0810416B1 (en) 2002-09-25

Family

ID=8024498

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97108283A Expired - Lifetime EP0810416B1 (en) 1996-05-29 1997-05-22 Pyrotechnic delay tube

Country Status (3)

Country Link
EP (1) EP0810416B1 (en)
DE (2) DE29609498U1 (en)
ES (1) ES2184004T3 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2516898A (en) * 1945-11-09 1950-08-01 Leo T Meister Primer and method of manufacture
DE1803358A1 (en) * 1968-10-16 1970-05-14 Mauser Werke Ag Ammunition shells
DE3719648A1 (en) * 1987-02-09 1988-12-29 Erich Brosa Fuze for long powder charges in cartridge cases of large calibre
AT396304B (en) * 1991-03-26 1993-08-25 Oregon Ets Patentverwertung Practice hand grenade detonator (fuze)
US5379699A (en) * 1993-08-02 1995-01-10 The United States Of America As Represented By The Secretary Of The Navy Active spray rocket propellant ignition controller

Also Published As

Publication number Publication date
ES2184004T3 (en) 2003-04-01
DE29609498U1 (en) 1997-09-25
EP0810416A2 (en) 1997-12-03
EP0810416A3 (en) 1999-05-19
DE59708296D1 (en) 2002-10-31

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