AU2020358276A1 - Active element and method for igniting an active element - Google Patents

Active element and method for igniting an active element Download PDF

Info

Publication number
AU2020358276A1
AU2020358276A1 AU2020358276A AU2020358276A AU2020358276A1 AU 2020358276 A1 AU2020358276 A1 AU 2020358276A1 AU 2020358276 A AU2020358276 A AU 2020358276A AU 2020358276 A AU2020358276 A AU 2020358276A AU 2020358276 A1 AU2020358276 A1 AU 2020358276A1
Authority
AU
Australia
Prior art keywords
active element
active
ignition means
ignition
channels
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.)
Pending
Application number
AU2020358276A
Inventor
Florian Huber
Vikorn Kadavanich
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
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 Rheinmetall Waffe Munition GmbH filed Critical Rheinmetall Waffe Munition GmbH
Publication of AU2020358276A1 publication Critical patent/AU2020358276A1/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42CAMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00Details of fuzes
    • F42C19/08Primers; Detonators
    • F42C19/0803Primers; Detonators characterised by the combination of per se known chemical composition in the priming substance
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41JTARGETS; TARGET RANGES; BULLET CATCHERS
    • F41J2/00Reflecting targets, e.g. radar-reflector targets; Active targets transmitting electromagnetic or acoustic waves
    • F41J2/02Active targets transmitting infrared radiation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42CAMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00Details of fuzes
    • F42C19/08Primers; Detonators
    • F42C19/0807Primers; Detonators characterised by the particular configuration of the transmission channels from the priming energy source to the charge to be ignited, e.g. multiple channels, nozzles, diaphragms or filters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42CAMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00Details of fuzes
    • F42C19/08Primers; Detonators
    • F42C19/0838Primers or igniters for the initiation or the explosive charge in a warhead
    • F42C19/0846Arrangements of a multiplicity of primers or detonators, dispersed within a warhead, for increased efficiency

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Air Bags (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Abstract

The invention relates to an active element (1), in particular an active decoy element, comprising at least one active mass 10

Description

DESCRIPTION
Active element and method for igniting an active element
The invention relates to an active element, in particular a decoy active element, comprising at least one active substance and at least two ignition means, each comprising a pyrotechnic composition for igniting the active substance.
Furthermore, the invention relates to a method for igniting an active element.
Active elements, such as decoy active elements, are used in aviation. Since approximately 1970, such decoy active elements have been provided under a protective film or in a container and initiated from one side. This applies in particular to all conventional MTV (Magnesium Teflon Viton) decoy active elements and spectral decoy active elements.
The ignition chain is activated from the firing side, preferably via a fail-safe system, for the active elements, which are preferably elongate in the case of aircraft, and then ignites the active element after release. These active elements often have a fast-burning coating composition in order to achieve ignition from all sides in the required time.
Decoy active elements having specific active substances and geometries are subject to ignition problems due to the design and the type of use, which can lead to delayed and reduced power delivery in the initial phase of the initiation.
The initiation usually takes place from an ignition side in the base region, which the so-called end face of the active element and runs through said element on the inside or on the outside along the surface in the direction of the ejection side, in order finally to achieve a reaction of the active element on all sides.
The ignition problems outlined above can have a direct impact on the effectiveness with respect to danger during the ignition phase.
The document DE 10 2009 030 871 Al discloses an active element comprising a combustible active substance container based on plastics film, which can be ignited inductively, by means of a laser or by high temperature.
DE 10 2016 122 740 Al discloses a pyrotechnic active element comprising a housing, an ignition device and at least one active composition. The ignition device is arranged, for example, in the bottom of the active element.
Patent application DE 10 2010 030 869 Al discloses an active element comprising a plurality of active substances, which has a plurality of individual flares which are arranged one behind the other and can be ignited inductively, by means of a laser or by high temperature.
DE 10 2009 030 872 Al relates to an active element which is inductively ignited, consisting of individual flares which are packed in a carrier material such as a steel foil coated with red phosphorus.
An encapsulated active element which has a large number of individual components for an infrared decoy and provides a central longitudinal ignition is known from DE 10 2010 013 110 Al.
DE 10 2004 047 231 Al discloses a generic active element which has a plurality of active substances and ignition means. How the ignition is carried out and how the ignition means are arranged is not disclosed.
Depending on the basic material and the geometry of the active element, there may be no suitable approved or reliable coating composition which can be used for implementation as a military active element. A change in the active substance composition or geometry is not possible without restrictions due to existing systems, and there is therefore a conflict of goals in this case.
Furthermore, ignition from all sides or from a plurality of sides cannot be guaranteed without a coating composition.
Proceeding from this, the problem addressed by the invention is that of providing an active element which makes quick and reliable ignition of a plurality of active substances possible.
This problem is solved by the active element of claim 1. Furthermore, this problem is solved by the method of claim 13. Advantageous embodiments and developments are the subject matter of the respective dependent claims.
According to the invention, an active element, in particular a decoy active element, is provided, comprising at least one active substance and at least two ignition means, each comprising a pyrotechnic composition for igniting the at least one active substance. The at least two ignition means are arranged on the at least one active substance and the at least two ignition means are connected to one another via channels in such a way that the at least one active substance can be ignited simultaneously from a plurality of sides.
Furthermore, according to the invention, a method is provided for igniting such an active element of this kind or as described below. The active element comprises at least one active substance and at least two ignition means, each comprising a pyrotechnic composition for igniting the active substances. The at least two ignition means are arranged on the at least one active substance and the at least two ignition means are connected to one another via channels in such a way that the at least one active substance can be ignited simultaneously from a plurality of sides.
According to the invention, it is therefore proposed to design the active element in such a way that it can be initiated, i.e. ignited, on a plurality of sides, but on at least two sides, for example on the lateral surfaces and on the opposite side. It is therefore an active element having multi-point ignition.
The at least one active substance is preferably at least one pyrotechnic active substance, such as is used in flares.
The channels are preferably ignition channels, which are designed to ignite the ignition means or conduct ignition to the ignition means. The channels can be arranged symmetrically and/or asymmetrically with respect to one another.
Simultaneously on a plurality of sides means that the active element or the at least one active substance can be ignited simultaneously at a plurality of points, such as sides, top, bottom or edges. Within the meaning of the invention, simultaneously means that the at least one active substance can be ignited substantially without time delay.
Within the meaning of the invention, the ignition means are, for example, squibs, smaller ignition sensitive pyrotechnic compositions or other known ignition means.
As a result of the multi-sided ignition according to the invention, less sensitive active substances over a large area can be quickly and reliably ignited by significantly smaller ignition means.
Since a plurality of ignition means is provided, there is an improvement in the reliability of the ignition as a result of this redundant provision of the ignition means.
Furthermore, such an active element has a confusion effect on all sides immediately after being ejected (for example from an airplane) and approaching missiles can be reliably averted.
In addition, in particular due to the fact that the at least one active substance can be ignited from a plurality of sides simultaneously, a reduced scattering behavior and improved responsiveness during use are achieved by means of the active element according to the invention. In addition, the effectiveness of the active element is improved.
In an advantageous development of the invention, it can be provided that a plurality of, preferably each, of the active substances of the active element can be ignited simultaneously from a plurality of sides.
The at least two active substances can be of the same size and/or different sizes. By means of a large number of different active substances, it is possible to set the wavelength of the spectrum emitted by the active element during the combustion of the active substances.
In an advantageous development, the active element has at least two active substances and the ignition means are arranged between the active substances of the active element in such a way that the at least two active substances can be ignited simultaneously from a plurality of sides.
This ensures that each of the active substances of the active element is ignited reliably and simultaneously, and the active element produces a good confusion effect on all sides.
Furthermore, the ignition means can advantageously be arranged inside and/or outside the active element.
The pyrotechnic composition of the ignition means and the at least one active substance can furthermore be separated from one another by an inert material.
As a result, a defined separation of the at least one active substance from the pyrotechnic composition of the ignition means is achieved. This prevents the active substance and the pyrotechnic composition from chemically influencing one another during storage of the active element. Furthermore, this prevents unwanted ignition. In addition, this means that a defined ignition energy is required in order to ignite the body.
In an embodiment, the at least one active substance and/or the ignition means can also be separated from one another by a film, a housing or an air gap. The individual active substances can preferably be separated from one another in this way.
Such a physical separation can be achieved, for example, by a film or a housing made of paper, plastics material or metal.
In addition, it can be provided that the active element has grooves, slots and/or bores. The channels extend in the grooves, slots and/or bores. The individual active substances are preferably separated by these grooves and/or slots. However, it is also possible for the grooves, slots and/or bores to extend inside an active substance.
The provision of grooves, slots and/or bores predetermines the positioning of the channels and also ensures that the channels do not or only slightly protrude beyond the contour of the active element.
In a further development it can be provided that the grooves and/or slots extend in such a way that they intersect at a plurality of intersection points and the ignition means are formed at the intersection points.
The provision of such intersection points means that a plurality of active substances, for example four or eight, are provided at a distance from one another at an intersection point, and a plurality of active substances can thus be ignited at one point by an ignition means.
Furthermore, the grooves, slots and/or bores can be arranged inside and/or outside the active element.
In addition, the active element can be protected from environmental influences by a film or a housing. This ensures that the active element can be reliably ignited even at high wind speeds and/or ejection speeds, i.e., for example, when fired from a fast-flying flying device or aircraft.
Furthermore, according to the invention, it is possible for the active element to have no pyrotechnic coating composition coating the entire active element. Such a coating composition is a fast-burning composition which coats the active element and allows ignition from all sides. This has the advantage that the active element can be approved even if there is no suitable approved coating composition.
The ignition means can be arranged in such a way and the length of the channels can be formed in such a way that the ignition means can be ignited simultaneously.
The ignition means can also be connected to an ignition initiator via the channels.
In an embodiment of the method, a plurality of active substances of the active element can also be ignited simultaneously from a plurality of sides.
In an advantageous development, the active element can also be substantially cuboid and have substantially cuboid active substances. In this case, the active element can in particular be an active element for ammunition in the 2x1x8" or 1x1x8" NATO standard caliber.
However, the active element can also be a cylindrical active element, preferably having a diameter of 36 mm or 55 mm.
It is also possible for the active element to be spherical or triangular.
The invention will be explained below on the basis of an embodiment with reference to the drawings,
in which:
Fig. 1 is a schematic perspective view of an active element according to the invention having channels according to a first embodiment;
Fig. 2 is a schematic perspective view of the active element according to the invention according to the first embodiment of Fig. 1, the channels being hidden;
Fig. 3 is a schematic perspective view of an active element according to the invention according to a second embodiment, the active element having internal channels;
Fig. 4 is a schematic perspective view of an active element according to the invention according to a third embodiment, the active element having internal symmetrical and asymmetrical channels.
Fig. 1 is a schematic perspective view of an active element according to the invention 1. The active element 1 comprises a plurality of active substances 101..., and a plurality of ignition means 201...,. The ignition means 201..., each comprise a pyrotechnic composition for igniting the active substances 101...r.
Fig. 2 is also a schematic perspective view of the active element according to the invention according to Fig. 1, the channels 301..., being hidden.
The ignition means 201..., are arranged between the individual active substances 101..., and the ignition means 201..., are connected to one another via channels 301..., in such a way that the active element 1 can be ignited simultaneously from a plurality of sides.
The ignition means 20., are connected to an ignition initiator (not shown) via the channels 30O, the ignition means 20, being arranged and the length of the channels 30, being formed in such a way that the ignition means 201, can be ignited simultaneously.
As can be seen from Fig. 2, the active element 1 has grooves and/or slots 221o, by means of which the individual active substances 10,, are separated from one another. According to the first embodiment of Fig. 1 and 2, the grooves and/or slots 2 5 1, are arranged inside the active element 1 and/or outside, i.e. externally.
The grooves and/or slots 2 2 ,, extend in such a way that they intersect at a plurality of intersection points 251, and the ignition means 20., are arranged at the intersection points 25.
As shown in Fig. 1, the grooves and/or slots 221, accommodate the channels 30j, i.e. the channels 301, are arranged in the grooves and/or slots.
The individual channels 30,are formed in a bead-like manner.
The individual active substances 10., of the active element 1 can be ignited simultaneously from a plurality of sides.
According to the embodiment, the ignition means 20., are arranged inside/outside the active element 1. For this purpose, said ignition means are provided in the slots/grooves of the active element 1.
The pyrotechnic composition of the ignition means 20,., and the active substances 10,, are separated from one another by an inert material. This can be designed, for example, as a film, a housing or an air gap.
According to Fig. 3, a schematic perspective view of an active element 1 according to the invention is shown according to a second embodiment which is based on the embodiment according to Fig. 1, and the differences are additionally shown below. The active element 1 has internal slots, grooves and/or bores 23..., in which channels 31n are formed. The channels 31... are formed inside the individual active substances 10,, and have a symmetrical pattern.
According to Fig. 4, a schematic perspective view of an active element 1 according to the invention is shown according to a third embodiment, which is based on the embodiment according to Fig. 3. In contrast to the embodiment according to Fig. 3, the internal channels 31l, are formed as symmetrical and/or asymmetrical channels 31o .inside the individual active substances 1lO.i
The embodiment shown in Fig. 1 to 4 is an active element 1 which comprises eight active substances 101...8 and six ignition means 201.. The active element 1 is substantially cuboid and comprises substantially cuboid active substances 101.8. In this case, the active element can in particular be an active element for ammunition in the 2x1x8" or 1x1x8" NATO standard caliber. However, this design of the above embodiment is merely an exemplary embodiment. A number other than eight active substances and six ignition means are also possible. However, the active element can also be a cylindrical active element, preferably having a diameter of 36 mm or mm. It is also possible for the active element to be spherical or triangular.
List of reference signs
1 active element
101..., active substances
201..., ignition means
221..., slots, grooves and/or bores (internal)
231..., slots, grooves and/or bores (external)
2 5 1..., intersection points (internal)
261..., intersection points (external)
301..., channels (internal)
311.., channels (external)

Claims (14)

Claims
1. Active element (1), in particular a decoy active element, comprising at least one active substance (101...,), at least two ignition means (201...,), each comprising a pyrotechnic composition for igniting the active substances (101...,), characterized in that the at least two ignition means (20,)are arranged on the at least one active substance (101.. and the at least two ignition means (201..,) are connected to one another via channels (301..., 311...,) in such a way that the at least one active substance (10e...,) can be ignited simultaneously from a plurality of sides.
2. Active element (1) according to claim 1, characterized in that the active element (1) comprises at least two active substances (101..,) and the ignition means (201...,) are arranged between the active substances (101...,) of the active element (1) in such a way that the at least two active substances (101..,) can be ignited simultaneously from a plurality of sides.
3. Active element (1) according to claim 1 or claim 2, characterized in that the at least two ignition means (201...,) are arranged inside and/or outside the active element (1).
4. Active element (1) according to any of the preceding claims, characterized in that the pyrotechnic composition of each ignition means (2 01...,) and the at least one active substance (10) are separated from one another by an inert material.
5. Active element (1) according to claim 4, characterized in that the at least one active substance and/or the ignition means (2 0,) are separated from one another by a film, a housing and/or an air gap.
6. Active element (1) according to any of the preceding claims, characterized in that the active element (1) has grooves, slots and/or bores ( 22 1..., 231...,) by means of which the individual active substances (101...,) are separated and in which the channels (301...,, 311...,) extend.
7. Active element (1) according to any of the preceding claims, characterized in that the at least one active substance (101...,) has grooves, slots and/or bores (221...,, 231...,) in which the channels (301...,, 311...,) extend.
8. Active element (1) according to claim 6, characterized in that the grooves, slots and/or bores (2 2 1..., 231...,) extend in such a way that they intersect at a plurality of intersection points (2 5 1..., 261..,) and the ignition means (20 s.. ,) are formed at the intersection points (251...o, 261.
9. Active element (1) according to any of the preceding claims, characterized in that the grooves, slots and/or bores (221., 231..) are arranged inside and/or outside the active element (1).
10. Active element (1) according to any of the preceding claims, characterized in that the active element (1) is protected from environmental influences by an inert film or a housing.
11. Active element (1) according to any of the preceding claims, characterized in that the active element (1) does not have a pyrotechnic coating composition which coats the entire active element (1).
12. Active element (1) according to any of the preceding claims, characterized in that the length of the channels (301...O, 311..,) is formed in such a way that the ignition means (201...,) can be ignited simultaneously.
13. Method for igniting an active element (1), in particular according to any of claims 1 to 12, comprising at least one active substance (101...,), at least two ignition means (20...,), each comprising a pyrotechnic composition for igniting the active substances (10, characterized in that the at least two ignition means (20,)are arranged on the at least one active substance (101.. and the at least two ignition means (201..,) are connected to one another via channels (301..., 311...,) in such a way that the at least one active substance (10e...,) can be ignited simultaneously from a plurality of sides.
14. Method for igniting an active element (1) according to claim 13, characterized in that a plurality of active substances (101...,) of the active element (1) are ignited simultaneously from a plurality of sides.
AU2020358276A 2019-10-01 2020-09-01 Active element and method for igniting an active element Pending AU2020358276A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102019126466.9A DE102019126466A1 (en) 2019-10-01 2019-10-01 Active body and method for igniting an active body
DE102019126466.9 2019-10-01
PCT/EP2020/074306 WO2021063615A1 (en) 2019-10-01 2020-09-01 Active element and method for igniting an active element

Publications (1)

Publication Number Publication Date
AU2020358276A1 true AU2020358276A1 (en) 2022-04-21

Family

ID=72322452

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2020358276A Pending AU2020358276A1 (en) 2019-10-01 2020-09-01 Active element and method for igniting an active element

Country Status (9)

Country Link
EP (1) EP4038340B9 (en)
JP (1) JP2022550429A (en)
KR (1) KR20220071964A (en)
AU (1) AU2020358276A1 (en)
CA (1) CA3156363A1 (en)
DE (1) DE102019126466A1 (en)
ES (1) ES2969340T3 (en)
IL (1) IL291705A (en)
WO (1) WO2021063615A1 (en)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2619597A1 (en) * 1976-05-04 1977-11-17 Dynamit Nobel Ag IGNITION DEVICE FOR INFRARED RADIATOR
DE2830119C2 (en) * 1978-07-08 1985-09-19 Nico-Pyrotechnik Hans-Jürgen Diederichs KG, 2077 Trittau Smoke charge for missiles and projectiles
GB9612655D0 (en) * 1996-06-17 2003-05-28 Secr Defence Infra-red emitting decoy flare
CA2432050C (en) * 2000-12-13 2009-06-23 The Secretary Of State For Defence Infra-red emitting decoy flare
FR2867848B1 (en) * 2004-03-18 2006-04-28 Giat Ind Sa DEVICE FOR INITIATION OF TWO EXPLOSIVE LOADS AND MILITARY HEAD USING SUCH AN INITIATION DEVICE
DE102004047231B4 (en) 2004-09-28 2008-08-21 Rheinmetall Waffe Munition Gmbh submunitions
US7546806B1 (en) * 2006-03-24 2009-06-16 The United States Of America As Represented By The Secretary Of The Army Selectable output well perforator and method for producing variable hole profiles
DE102009030872A1 (en) 2009-06-26 2010-12-30 Rheinmetall Waffe Munition Gmbh submunitions
DE102009030871B4 (en) 2009-06-26 2013-05-29 Rheinmetall Waffe Munition Gmbh Combustible mass container
DE102010013110A1 (en) 2010-03-26 2011-09-29 Rheinmetall Waffe Munition Gmbh Encapsulated active body for an IR deception or decoy
DE102010030869A1 (en) 2010-07-02 2012-01-05 Ifm Electronic Gmbh Method for evaluating measurement signal of capacitive limit switch, involves modifying deviations of measurement values, determining maximum value of deviations, and evaluating measurement signal on basis of maximum value
DE102016122740A1 (en) 2016-11-24 2018-05-24 Rheinmetall Waffe Munition Gmbh Pyrotechnic active body

Also Published As

Publication number Publication date
KR20220071964A (en) 2022-05-31
DE102019126466A1 (en) 2021-04-01
ES2969340T3 (en) 2024-05-17
EP4038340B9 (en) 2024-02-14
EP4038340B1 (en) 2023-11-15
IL291705A (en) 2022-05-01
CA3156363A1 (en) 2021-04-08
EP4038340A1 (en) 2022-08-10
WO2021063615A1 (en) 2021-04-08
JP2022550429A (en) 2022-12-01

Similar Documents

Publication Publication Date Title
US8220392B1 (en) Launchable grenade system
US6889935B2 (en) Directional control of missiles
US5074216A (en) Infrared signature enhancement decoy
US3332348A (en) Non-lethal method and means for delivering incapacitating agents
US6782826B1 (en) Decoy
US8146504B2 (en) System for protection in particular of large flying platforms against infrared and/or radar-guided threats
US4183302A (en) Sequential burst system
US8783183B2 (en) Active body
US3137231A (en) Chaff dispenser system
US8763533B2 (en) Active body
US4488488A (en) Warhead safety and ribbon chute holder
US10775140B2 (en) Controlled payload release mechanism for multiple stacks of pyrophoric foils to be contained in a single decoy device cartridge
US6634301B1 (en) Enclosed ignition flare igniter
US4178854A (en) Multiple sequential burst system
KR101320978B1 (en) Seeking fused munition
US5461982A (en) Missiles having means for marking targets destroyed by said missiles to prevent further expenditure of munitions to said target
US7895947B1 (en) Weapon fuse method
AU2020358276A1 (en) Active element and method for igniting an active element
US3730098A (en) Apparatus for quick-blossoming chaff ejection
CA2369898C (en) Projectile
US20140145024A1 (en) Ejectable aerodynamic cap for guided munition and guided munition comprising such a cap
US20060016360A1 (en) Anti-bunker ammunition
US7100513B2 (en) Programmable pyrotechnic projectile and methods for producing firework patterns therewith
RU2351877C2 (en) Method and device for combined protection of small-sized objects
GB2327116A (en) Decoy flare