EP3036501B1 - Pyrotechnische verzögerungseinrichtung für einen munitionszünder und mörsergranate mit einer derartigen verzögerungseinrichtung - Google Patents

Pyrotechnische verzögerungseinrichtung für einen munitionszünder und mörsergranate mit einer derartigen verzögerungseinrichtung Download PDF

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Publication number
EP3036501B1
EP3036501B1 EP14744313.9A EP14744313A EP3036501B1 EP 3036501 B1 EP3036501 B1 EP 3036501B1 EP 14744313 A EP14744313 A EP 14744313A EP 3036501 B1 EP3036501 B1 EP 3036501B1
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EP
European Patent Office
Prior art keywords
housing
delay
delay device
pyrotechnic
radial bores
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.)
Active
Application number
EP14744313.9A
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German (de)
English (en)
French (fr)
Other versions
EP3036501A1 (de
Inventor
Alexander Paesch
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
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Publication date
Application filed by Rheinmetall Waffe Munition GmbH filed Critical Rheinmetall Waffe Munition GmbH
Priority to PL14744313T priority Critical patent/PL3036501T3/pl
Publication of EP3036501A1 publication Critical patent/EP3036501A1/de
Application granted granted Critical
Publication of EP3036501B1 publication Critical patent/EP3036501B1/de
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C9/00—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition
    • F42C9/10—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by combustion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C9/00—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition
    • F42C9/10—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by combustion
    • F42C9/12—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by combustion with ring combustion elements

Definitions

  • the invention relates to a pyrotechnic delay device for a munitions detonator with a pyrotechnic delay element which is ignited when firing the ammunition and after a predetermined delay time a main charge, a Austreibladung o.
  • the invention relates to a (multi-) adjustable, launch-initiated pyrotechnic delay unit for initiation and expulsion of, for example, red phosphorus (RF) as fogging material into or out of a particular (fly-k) mortar shell.
  • the invention further relates to a mortar shell with such a delay device.
  • Pyrotechnic deceleration devices for ammunition fuzes have long been known.
  • FR1258386A1 discloses such a delay device.
  • pyrotechnic deceleration devices may be safety devices that directly destroy or crash the corresponding projectile after a predetermined delay has elapsed.
  • pyrotechnic delay devices and electronic or mechanical delay devices are known. That's how it describes DE 1 114 125 B a triggerable by electricity pyrotechnic igniter, which is connected only when shooting with the power source.
  • a self-destructive device for ammunition in the DE 11 2005 001 081 B4 disclosed.
  • This self-destructive device is formed by an electro-pyrotechnic device, which in turn is time-delayed connected to an energy reserve after a predetermined delay.
  • an electro-pyrotechnic device which in turn is time-delayed connected to an energy reserve after a predetermined delay.
  • Another electronic delay is also published for the ignition of a pyrotechnic component.
  • an electric detonator with an electronic delay the DE 28 38 055 C .
  • a mechanically adjustable delay element is the DE 10 2012 014 149 B3 removable.
  • the mechanical adjustment consists at least of a tube, a sleeve and a chemical set as a delay set, which is located in the pipe. A displacement of the sleeve on the tube in the axial direction causes a release of the delay set to the ignition charge and thus an adjustment of the delay time.
  • the not pre-published DE 10 2012 014 150.5 includes a pressure-controlled delay element for an ammunition and the like with an ignition charge.
  • the delay element described therein comprises a tube, a sleeve, a bias, and a chemical delay set introduced into the tube.
  • the tube has an axial slot over part of its length and is axially slidably mounted in the sleeve and biased by the bias.
  • a narrow annular surface of the sleeve covers the end of the slot on the firing side.
  • This pressure is the control variable for the pressure-controlled delay element.
  • the gas pressure acts on the face of the tube and pushes it until the equilibrium of forces against the bias voltage is adjusted.
  • the tube is displaced against the preload.
  • the slot in the tube and the annular surface of the sleeve are moved against each other. A part of the covered slot becomes free and the delay set comes into contact with the ignition charge in this area - the delay time is shortened.
  • the delay time is usually not adjustable in pyrotechnic delay devices. Rather, to change the delay time, the respective delay element must be replaced by another delay element.
  • the invention has for its object to provide a pyrotechnic delay device with adjustable delay or delay time, without requiring an exchange of the delay element is required. Furthermore, a mortar shell with a, such a delay device having ammunition fuze to be disclosed.
  • the invention is based essentially on the idea that the initiation of the reactive-acting bullet payloads is brought about via a bullet-side, in particular prior to launch by the shooter also stepwise adjustable, pyrotechnic acting delay unit.
  • a functional claim is often found in light mortar cargo ammunition in which, in contrast to conventional mortar shells, the primary effect in the target is not caused by the projectile itself, but by their close to the target ejected, autonomously acting payload.
  • the inventive delay device comprises, in addition to the pyrotechnic delay element with a fixed delay time (maximum delay time), a bypass element with a pyrotechnic transfer charge which has a significantly higher burnup rate than the material of the pyrotechnic delay element.
  • the pyrotechnic retardation element is arranged in a hollow cylindrical first housing, which is enclosed by a hollow cylindrical second housing at least in a partial area, wherein the first and the second housing for adjusting the delay time are arranged rotatable relative to each other about a common longitudinal axis.
  • At least one bypass bore extends parallel to the first housing and is connected to at least two radial bores axially spaced apart from one another and directed to the first housing the first hole on the main or Austreibungsladung or the like. facing side of the bypass hole is arranged.
  • the side wall of the first housing further comprises at least a third and a fourth radial bore, which are arranged such that they are aligned at a predeterminable angle of rotation with respect to the second housing with the first and second radial bores arranged in this housing.
  • the bypass bore and the radial bores of the first and second housing are filled with the pyrotechnic transfer charge, so that when an alignment of the radial bores of the first and second housing, the delay time between the ignition of the delay element and the lighting of the main or Austreibladung o.dgl. is shortened by a predetermined by the axial position of the fourth (and thus also the second) radial bore period.
  • a maximum delay time is set. If now a delay time is set with the delay device, which is less than the maximum delay time, the bypass element is activated after the burning of a predetermined first portion of the delay element, so that the remaining second portion of the delay element is bridged by the bypass element and the corresponding main or Austreibladung or the like. is ignited immediately after the burning of the first section.
  • the two housings are rotated relative to each other about the longitudinal axis, that the radial holes are not aligned, so that the bypass is deactivated and it through this no longer comes to a premature ignition of the pyrotechnic delay line.
  • the number of radial bores in the first and second housings in the axial direction must be correspondingly increased and arranged circumferentially shifted relative to one another. To set the respective delay time then the associated radial bores in the two housings are again arranged in alignment.
  • Fig.1 1 schematically shows an ammunition fuze which consists of an ignition element 2 of a pyrotechnic deceleration device 3 and of a main charge 4, for instance for igniting an explosive charge (not shown).
  • the ignition element 2 it may, for example, a Zündplättchen which is ignited by means of a hammer, but also act as an electrically ignitable element.
  • the pyrotechnic delay device 3 comprises a pyrotechnic retardation element 5 which is arranged in a hollow-cylindrical or tubular first housing 6.
  • This first housing 6 is partially enclosed by a hollow cylindrical or tubular second housing 7.
  • the first and the second housing 6 and 7 are arranged rotatable relative to each other about a common longitudinal axis 100.
  • bypass hole 9 In the side wall 8 of the second housing 7 extends parallel to the longitudinal axis 100, a bypass hole 9. This bypass hole 9 is connected to two axially spaced, directed to the first housing 6 radial bores 10, 11, wherein the first bore 10 on the main charge. 4 facing side of the bypass hole 9 and the second bore 11 are arranged approximately in the middle between the ignition element 2 and the main charge 4.
  • the side wall 12 of the first housing 6 has a third and a fourth radial bore 13, 14 which extend in Fig.1 located on the side facing away from the viewer of the first housing 6. These bores 13 and 14 are arranged in such a way that, when the first housing is rotated by 45 ° relative to the second housing 7, they are aligned with the first and second radial bores 10, 11 arranged in this housing 7 (FIG. Fig.2 ).
  • Both the bypass bore 9 and the radial bores 13, 14 of the first housing 6 and the radial bores 10, 11 of the second housing 7 are filled with a pyrotechnic transfer charge 15, the burning rate is much higher than that of the pyrotechnic delay element. 5
  • the two housings 6 and 7 are rotated relative to each other about the longitudinal axis 100 such that the radial bores 10 and 13 and 11 and 14 not aligned with each other and, for example, an arrangement results, as in Fig.1 is shown.
  • FIG 3 schematically shows a mortar shell 16, which is, for example, a mortar shell which can be fired from a mortise mortar.
  • the mortar shell 16 comprises an active charge 18 (eg from a fog-producing material) receiving front projectile part 17 and a tail adjoining tail part 19.
  • the active charge activating ammunition 1 detonator 18 corresponds to the above, with the aid of Fig.1 and 2 Ammunition igniter 1 described, wherein the ignition element 2 can be activated by an impact element 20.
  • the front projectile part 17 is arranged rotatable relative to the adjoining tail part 19 about the longitudinal axis 100 of the mortar shell 16.
  • the first housing 6 of the pyrotechnic delay device 3 with the ignition element 2 and the subsequent main charge 4 are therefore non-positively and / or positively connected to the tail part 19.
  • the second housing 7 of the deceleration device 3 is non-positively and / or positively connected to the front shell part 17 of the mortar shell 16 containing the active charge 18.
  • the rotational angles at which the radial bores 10 and 13 and 11 and 14 are aligned with each other are fixed in each case via releasable latching connections.
  • the number of radial bores in the first and second housing in the axial direction must be increased accordingly and circumferentially arranged such that the input side (ie in the weft direction back) and the output side (ie in the weft direction forward) respectively only one, the respective delay time corresponding aligned arrangement of radial bores in the first and second housing are connected in alignment with each other.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
EP14744313.9A 2013-08-20 2014-07-24 Pyrotechnische verzögerungseinrichtung für einen munitionszünder und mörsergranate mit einer derartigen verzögerungseinrichtung Active EP3036501B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL14744313T PL3036501T3 (pl) 2013-08-20 2014-07-24 Pirotechniczne urządzenie zwłoczne do zapalnika amunicji i granat moździerzowy z tego rodzaju urządzeniem zwłocznym

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201310013705 DE102013013705A1 (de) 2013-08-20 2013-08-20 Pyrotechnische Verzögerungseinrichtung für elnen Munitionszünder und Mörsergranate mit einer derartigen Verzögerungseinrichtung
PCT/EP2014/065959 WO2015024730A1 (de) 2013-08-20 2014-07-24 Pyrotechnische verzögerungseinrichtung für einen munitionszünder und mörsergranate mit einer derartigen verzögerungseinrichtung

Publications (2)

Publication Number Publication Date
EP3036501A1 EP3036501A1 (de) 2016-06-29
EP3036501B1 true EP3036501B1 (de) 2018-03-14

Family

ID=51228433

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14744313.9A Active EP3036501B1 (de) 2013-08-20 2014-07-24 Pyrotechnische verzögerungseinrichtung für einen munitionszünder und mörsergranate mit einer derartigen verzögerungseinrichtung

Country Status (7)

Country Link
EP (1) EP3036501B1 (da)
DE (1) DE102013013705A1 (da)
DK (1) DK3036501T3 (da)
ES (1) ES2672309T3 (da)
NO (1) NO3032209T3 (da)
PL (1) PL3036501T3 (da)
WO (1) WO2015024730A1 (da)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015117003A1 (de) 2015-10-06 2017-04-06 Rheinmetall Waffe Munition Gmbh Geschoss mit reduzierter Reichweite
DE102015116985A1 (de) 2015-10-06 2017-04-06 Rheinmetall Waffe Munition Gmbh Selbstverzehrendes Geschoss

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1114125B (de) 1958-04-30 1961-09-21 Sofranic S A R L Geschosszuender mit Sicherung gegen vorzeitiges Entschaerfen
FR1258386A (fr) * 1960-03-01 1961-04-14 Chimie Et Propulsion Soc Bloc porte-relais temporisés pour le largage automatique de la charge utile de projectiles auto-propulsés
US3994233A (en) * 1975-04-10 1976-11-30 The United States Of America As Represented By The Secretary Of The Army Initiator cartridge
CH608604A5 (da) 1977-09-16 1979-01-15 Oerlikon Buehrle Ag
FR2861842B1 (fr) 2003-11-05 2007-12-21 Giat Ind Sa Module mecano-pyrotechnique
BE1016094A3 (fr) 2004-05-14 2006-03-07 Zeebrugge Forges Sa Dispositif d'autodestruction pour fusee de sous-munition.
US8250984B2 (en) * 2008-08-29 2012-08-28 Lockheed Martin Corporation Mine-defeating submunition
US8381651B1 (en) * 2011-09-01 2013-02-26 The United States Of America As Represented By The Secretary Of The Army Rotational variable pyrotechnic delay selector for munitions
DE102012014150A1 (de) 2012-07-18 2014-01-23 Rheinmetall Waffe Munition Gmbh Druckgesteuertes Verzögerungselement sowie Munition
DE102012014149B3 (de) 2012-07-18 2013-07-25 Rheinmetall Waffe Munition Gmbh Mechanisch verstellbares Verzögerungselement

Also Published As

Publication number Publication date
WO2015024730A1 (de) 2015-02-26
ES2672309T3 (es) 2018-06-13
DE102013013705A1 (de) 2015-02-26
EP3036501A1 (de) 2016-06-29
PL3036501T3 (pl) 2018-08-31
DK3036501T3 (da) 2018-06-14
NO3032209T3 (da) 2018-02-03

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