EP0810416B1 - Pyrotechnic delay tube - Google Patents
Pyrotechnic delay tube Download PDFInfo
- 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
Links
Images
Classifications
-
- 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
- F42B3/16—Pyrotechnic 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.
Landscapes
- 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.
- 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
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
Die Bohrungen 15 sind gemäß Fig. 3 sternförmig angeordnet und weisen zwischen
sich einen Winkel 16 von 60° auf.The
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
Der Boden 13 ist mit der Hülse 10 einstückig ausgebildet.The
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
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
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
Claims (4)
- 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. - 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°. - 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). - 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).
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)
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 |
-
1996
- 1996-05-29 DE DE29609498U patent/DE29609498U1/en not_active Expired - Lifetime
-
1997
- 1997-05-22 EP EP97108283A patent/EP0810416B1/en not_active Expired - Lifetime
- 1997-05-22 DE DE59708296T patent/DE59708296D1/en not_active Expired - Fee Related
- 1997-05-22 ES ES97108283T patent/ES2184004T3/en not_active Expired - Lifetime
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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