US20110011296A1 - Subprojectile having an energy content - Google Patents

Subprojectile having an energy content Download PDF

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Publication number
US20110011296A1
US20110011296A1 US12/594,565 US59456508A US2011011296A1 US 20110011296 A1 US20110011296 A1 US 20110011296A1 US 59456508 A US59456508 A US 59456508A US 2011011296 A1 US2011011296 A1 US 2011011296A1
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US
United States
Prior art keywords
submunition
bore
energetic
igniter
compressed
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.)
Abandoned
Application number
US12/594,565
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English (en)
Inventor
Günther Diewald
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.)
RWM Schweiz AG
Original Assignee
RWM Schweiz AG
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 RWM Schweiz AG filed Critical RWM Schweiz AG
Assigned to RWM SCHWEIZ AG reassignment RWM SCHWEIZ AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DIEWALD, GUNTHER
Assigned to RWM SCHWEIZ AG reassignment RWM SCHWEIZ AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DIEWALD, GUNTHER
Publication of US20110011296A1 publication Critical patent/US20110011296A1/en
Abandoned legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
    • C06C15/00—Pyrophoric compositions; Flints
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B33/00—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
    • F42B12/44—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information of incendiary type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
    • F42B12/46—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information for dispensing gases, vapours, powders or chemically-reactive substances
    • F42B12/50—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information for dispensing gases, vapours, powders or chemically-reactive substances by dispersion
    • F42B12/52—Fuel-air explosive devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
    • F42B12/56—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information for dispensing discrete solid bodies
    • F42B12/58—Cluster or cargo ammunition, i.e. projectiles containing one or more submissiles

Definitions

  • the invention relates in particular to spin-stabilized submunitions of a projectile which have an energetic content.
  • incendiary compounds it is known for incendiary compounds to be included as a fragmentation incendiary munition in a projectile body or explosive head together with a high explosive and in armour-piercing projectiles which do not contain any explosive.
  • the detonation or mechanical fragmentation of the projectile or explosive head in or close to the target results in incendiary compound particles which fly at high speed and burn autonomously in the air. This results in a three-dimensional incendiary effect which extends over a long time.
  • fragmentation incendiary munitions contain mixtures of high explosives such as hexagon, octagon trotyl and aluminum powder.
  • DE 29 01 517 describes an incendiary compound having an organic binder and metal foam, for example composed of zirconium or hafnium, with polytetrafluorethylene in a proportion of 2 to 15% by mass being used as the binder.
  • EP 0 051 324 B1 discloses an incendiary compound of this generic type which uses an organic binder and metal particles.
  • this solution proposes that metal powder be used with a mean grain size of 15-50 ⁇ m.
  • the metal additive itself results in an increase in the blast effect and in lengthening of the flame life from 1 ms to 15 ms. This increases the probability of ignition of combustible material.
  • the binder can therefore be used in the least possible concentration which still ensures adequate compression capability and a fixing of the incendiary compound.
  • the use of spherical metal powder, in particular of zirconium metal powder, with a larger surface makes it possible for the binder to be applied dry to the surface of the metal powder, thus increasing the friability and allowing volumetric metering.
  • EP 1 286 129 A1 discloses a further incendiary charge for a fin-stabilized kinetic-energy projectile which is highly effective despite having a relatively small volume and a low mass.
  • the incendiary charge is ignited by the shock waves created on impact with the target.
  • a titanium foam is used, and epoxy resin or polyester resin is used as the binder.
  • the grain size range of the titanium foam is in this case around 450 ⁇ m, with 30% having a grain size of more than 450 ⁇ m, and 70% having a grain size of less than 450 ⁇ m.
  • the invention is based on the object of achieving an incendiary effect which, in particular, is more effective in or on the target and causes a reaction with energetic target material.
  • a submunition ( 1 ) in particular a rotation-stabilized submunition, has a body ( 2 ), which has a bore ( 5 ) and may be composed of hard metal or heavy metal, characterized in that an energetic component ( 3 ) with or without igniter ( 4 ) is incorporated in the bore ( 5 ).
  • the first embodiment is modified so that the energetic component ( 3 ) is incorporated with the igniter ( 4 ) in the front or rear of the submunition ( 1 ).
  • the first or second embodiments are modified so that pyrotechnic components with a thermobaric reaction are used as energetic components ( 3 ).
  • the third embodiment is further modified so that the energetic components are, for example, zirconium powder, zirconium foam, thermites, pyrofuze or coruscative.
  • one of the first, second, third or fourth embodiments of the invention are further modified so that Mg, Al, Si-barium peroxide systems are used as an igniter ( 4 ).
  • one of the first, second, third, fourth and fifth embodiments of the invention is further modified so that the energetic component ( 3 ) is either pre-compressed in the bore ( 5 ) or is inserted in the bore ( 5 ).
  • one of the first, second, third, fourth, fifth, and sixth embodiments is further modified so that the igniter ( 4 ) is metered and compressed.
  • one of the first, second, third, fourth, fifth, sixth and seventh embodiments is further modified so that the energetic components ( 3 ) are fired or activated, with or without pressure-sensitive igniter ( 4 ), by the air friction that occurs, ignition in the carrier projectile together with an ejection charge, or at the latest on striking the target.
  • one of the first, second, third, fourth, fifth, sixth, seventh or eighth embodiments is further modified so that the submunition is used in a projectile.
  • the invention is based on the idea of incorporating the incendiary compound and the energetic component of a projectile in the submunitions.
  • the submunitions are produced from ductile heavy metal or hard metal in a known manner in a cylindrical, spherical or cuboid shape, with a cutout with or without weak points.
  • the introduction and compression processes then take place, preferably by machine, of the energetic component and, if provided, the metering of a pressure-sensitive ignition charge, with subsequent compression.
  • the submunitions can be released in a known manner.
  • the energetic content of the submunition is activated, depending on the design by:
  • the energetic content of the submunitions includes a pyrotechnic, such as thermite, pyrofuze (c.f., http: ⁇ www.sigmundcohn.com/german/pyrofuse.html, DE 21 30 367 A1) or coruscative (U.S. Pat. No. 3,135,205) with thermobaric reactions.
  • a pyrotechnic such as thermite, pyrofuze (c.f., http: ⁇ www.sigmundcohn.com/german/pyrofuse.html, DE 21 30 367 A1) or coruscative (U.S. Pat. No. 3,135,205) with thermobaric reactions.
  • Mg, Al, Si-barium per oxide-systems are used for the ignition pyrotechnics, for example, YIS 506 from the same company.
  • the submunitions are preferably spin-stabilized.
  • the spin-stabilize allows the submunition or submunitions to strike the target in an oriented manner. (Spin rate is approximately 1 000 Hz at the barrel muzzle).
  • the orientation cavity with energetic content can be provided at the front or rear in the submunition.
  • FIG. 1 shows a submunition illustrated from the side
  • FIG. 1 a shows a section illustration A-A of a first variant of the form of the submunition shown in FIG. 1 .
  • FIG. 1 b shows a section illustration A-A of a second variant of the form of the submunition shown in FIG. 1 .
  • this projectile may be adapted for use as a projectile in accordance with the present invention, wherein the adapted projectile has submunitions 1 which have a hard-metal body and/or heavy-metal body 2 , with a bore or recess 5 , for holding an energetic component 3 .
  • An igniter 4 preferably ends flat with the housing body 2 .
  • the energetic component 3 may be a powder, a rod material, or the like.
  • the zirconium powder is precompressed in the projectile bore 5 , and the igniter 4 is metered and is compressed to about 400 MPa.
  • the ratio used for this purpose may, in this case, be 10/1.
  • pyrofuze is cut into parts with a length of 8 mm, and is inserted into the projectile bore 5 .
  • the igniter 4 is metered and compressed.
  • a ratio of 10/1 is also sufficient in this case, and it is been found to be advantageous to use a ratio of 13/1.
  • zirconium foam is used as in accordance with a third non-limiting embodiment of the invention, this is likewise precompressed in the projectile bore 5 , and the igniter 4 is metered. A ratio of 10/1 is also recommended in this case.
  • the submunitions are compressed only with the corresponding energetic materials (zirconium powder, zirconium foam, pyrofuze, coruscative etc.) without an igniter in the projectile bore at about 400 MPa.
  • the mass of the energetic compound can be increased, corresponding to the proportion resulting from the lack of the igniter.
  • the volume of the energetic material forced into the submunitions is in the region of about 5-20% of the projectile volume.
  • the submunitions 1 of the carrier projectile which is not illustrated in any more detail, are, for example, released by programmed triggering.
  • the pyrotechnical energetic component 3 in the submunition 1 is fired by self-arming, or else by the pressure-sensitive igniter 4 , which is ignited by air friction, or ignition in the carrier projectile together with an ejection charge, or at the latest on striking a target.
  • this energetic component 3 now also has an incendiary compound and a reactive material, which reacts chemically with target material in the target.
  • the submunition may be cylindrical or spherical, or else may have a polygonal cross section.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Materials Engineering (AREA)
  • Air Bags (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
US12/594,565 2007-04-05 2008-03-26 Subprojectile having an energy content Abandoned US20110011296A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE102007016828.6 2007-04-05
DE102007016828 2007-04-05
DE102007021451.2 2007-05-08
DE102007021451A DE102007021451A1 (de) 2007-04-05 2007-05-08 Subprojektil mit energetischem Inhalt
PCT/EP2008/002378 WO2008122365A2 (de) 2007-04-05 2008-03-26 Subprojektil mit energetischem inhalt

Publications (1)

Publication Number Publication Date
US20110011296A1 true US20110011296A1 (en) 2011-01-20

Family

ID=38621186

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/594,565 Abandoned US20110011296A1 (en) 2007-04-05 2008-03-26 Subprojectile having an energy content

Country Status (7)

Country Link
US (1) US20110011296A1 (de)
EP (1) EP2129993A2 (de)
JP (1) JP2010523927A (de)
KR (1) KR20100014932A (de)
DE (1) DE102007021451A1 (de)
IL (1) IL201349A0 (de)
WO (1) WO2008122365A2 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150241185A1 (en) * 2006-05-15 2015-08-27 Exquadrum, Inc. Kinetic fireball incendiary munition
US20160309327A1 (en) * 2013-12-19 2016-10-20 Orange System and method for providing a service to the user of a mobile terminal
US20170140452A1 (en) * 2015-11-17 2017-05-18 NextEv USA, Inc. Network-based system for selling and servicing cars

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101316267B1 (ko) 2010-11-18 2013-10-08 기아자동차주식회사 차량의 변속단 표시장치

Citations (16)

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Publication number Priority date Publication date Assignee Title
US48642A (en) * 1865-07-11 Improvement in compound explosive shells
US1300195A (en) * 1918-03-27 1919-04-08 Us Government Incendiary bullet.
US1340871A (en) * 1917-06-21 1920-05-25 Vickers Ltd Explosive shell
US3135205A (en) * 1959-03-03 1964-06-02 Hycon Mfg Company Coruscative ballistic device
US3695116A (en) * 1970-09-30 1972-10-03 Bunker Ramo Non-explosive electrically initiated heat-ignitable actuator
US3961576A (en) * 1973-06-25 1976-06-08 Montgomery Jr Hugh E Reactive fragment
US4131498A (en) * 1978-01-25 1978-12-26 Teledyne Industries, Inc. Metallic sponge incendiary compositions
US4281599A (en) * 1978-06-06 1981-08-04 Diehl Gmbh & Co. Projectile
US4402705A (en) * 1980-10-31 1983-09-06 Werkzeugmaschinenfabrik Oerlikon-Buhrle Ag Incendiary composition containing a group IVB metallic fuel
US4625650A (en) * 1984-10-29 1986-12-02 Olin Corporation Multiple effect ammunition
US4753171A (en) * 1986-03-12 1988-06-28 Diehl Gmbh & Co. Carrier projectile for submunition
US6659013B1 (en) * 1997-01-08 2003-12-09 Futurec Ag C/O Beeler + Beeler Treuhand Ag Projectile or war-head
US6910421B1 (en) * 1992-12-08 2005-06-28 Bae Systems Plc General purpose bombs
US20050183618A1 (en) * 2004-02-10 2005-08-25 Government Of The United States Of America As Represented By The Secretary Of The Navy Enhanced performance reactive composite projectiles
US20090266261A1 (en) * 2005-11-29 2009-10-29 Gunther Diewald Incendiary Compound Comprising a Combustible From Group IVB of the Period Table, and Projectile Containing Said Incendiary Compound
US20110132222A1 (en) * 2006-06-13 2011-06-09 Lockheed Martin Corporation Enhanced blast explosive

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GB2115909B (en) * 1980-12-02 1984-07-04 Diehl Gmbh & Co A fragmentation body for fragmentation projectiles and warheads
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USH1048H (en) * 1991-08-05 1992-05-05 The United States Of America As Represented By The Secretary Of The Navy Composite fragmenting rod for a warhead case
JPH07324899A (ja) * 1994-05-30 1995-12-12 Nippon Koki Kk 演習用弾丸
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JP3987638B2 (ja) * 1998-06-18 2007-10-10 日本工機株式会社 発煙剤組成物
JP4462735B2 (ja) * 2000-08-10 2010-05-12 富士重工業株式会社 搭載物放出装置
DE10039304A1 (de) * 2000-08-11 2002-02-21 Diehl Munitionssysteme Gmbh Gefechtskopf für ein KE-Geschoß
DE10140600A1 (de) 2001-08-18 2003-03-06 Rheinmetall W & M Gmbh Brandsatz für ein flügelstabilisiertes Wuchtgeschoß
JP4206009B2 (ja) * 2002-09-02 2009-01-07 ダイセル化学工業株式会社 インフレータ用点火器及びその製造方法
JP2004108738A (ja) * 2002-09-20 2004-04-08 Komatsu Ltd 投下型照準砲弾
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FR2870234B1 (fr) * 2004-05-13 2007-02-09 Snpe Materiaux Energetiques Sa Compostion pyrotechnique dosable utilisee comme fusible thermique dans un generateur de gaz et generateur de gaz incluant un compose ayant ladite composition
JP4532166B2 (ja) * 2004-05-26 2010-08-25 細谷火工株式会社 発煙ボール
DE102005039901B4 (de) 2005-08-24 2015-02-19 Rwm Schweiz Ag Geschoss, insbesondere für Mittelkalibermunition

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US48642A (en) * 1865-07-11 Improvement in compound explosive shells
US1340871A (en) * 1917-06-21 1920-05-25 Vickers Ltd Explosive shell
US1300195A (en) * 1918-03-27 1919-04-08 Us Government Incendiary bullet.
US3135205A (en) * 1959-03-03 1964-06-02 Hycon Mfg Company Coruscative ballistic device
US3695116A (en) * 1970-09-30 1972-10-03 Bunker Ramo Non-explosive electrically initiated heat-ignitable actuator
US3961576A (en) * 1973-06-25 1976-06-08 Montgomery Jr Hugh E Reactive fragment
US4131498A (en) * 1978-01-25 1978-12-26 Teledyne Industries, Inc. Metallic sponge incendiary compositions
US4281599A (en) * 1978-06-06 1981-08-04 Diehl Gmbh & Co. Projectile
US4402705A (en) * 1980-10-31 1983-09-06 Werkzeugmaschinenfabrik Oerlikon-Buhrle Ag Incendiary composition containing a group IVB metallic fuel
US4625650A (en) * 1984-10-29 1986-12-02 Olin Corporation Multiple effect ammunition
US4753171A (en) * 1986-03-12 1988-06-28 Diehl Gmbh & Co. Carrier projectile for submunition
US6910421B1 (en) * 1992-12-08 2005-06-28 Bae Systems Plc General purpose bombs
US6659013B1 (en) * 1997-01-08 2003-12-09 Futurec Ag C/O Beeler + Beeler Treuhand Ag Projectile or war-head
US20050183618A1 (en) * 2004-02-10 2005-08-25 Government Of The United States Of America As Represented By The Secretary Of The Navy Enhanced performance reactive composite projectiles
US20090266261A1 (en) * 2005-11-29 2009-10-29 Gunther Diewald Incendiary Compound Comprising a Combustible From Group IVB of the Period Table, and Projectile Containing Said Incendiary Compound
US20110132222A1 (en) * 2006-06-13 2011-06-09 Lockheed Martin Corporation Enhanced blast explosive

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150241185A1 (en) * 2006-05-15 2015-08-27 Exquadrum, Inc. Kinetic fireball incendiary munition
US9423224B2 (en) * 2006-05-15 2016-08-23 Exquadrum, Inc. Kinetic fireball incendiary munition
US9791249B2 (en) 2006-05-15 2017-10-17 Exquadrum, Inc. Kinetic fireball incendiary munition
US20160309327A1 (en) * 2013-12-19 2016-10-20 Orange System and method for providing a service to the user of a mobile terminal
US20170140452A1 (en) * 2015-11-17 2017-05-18 NextEv USA, Inc. Network-based system for selling and servicing cars

Also Published As

Publication number Publication date
KR20100014932A (ko) 2010-02-11
WO2008122365A3 (de) 2009-04-23
JP2010523927A (ja) 2010-07-15
IL201349A0 (en) 2010-05-31
DE102007021451A1 (de) 2008-10-09
EP2129993A2 (de) 2009-12-09
WO2008122365A2 (de) 2008-10-16

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Legal Events

Date Code Title Description
AS Assignment

Owner name: RWM SCHWEIZ AG, SWITZERLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DIEWALD, GUNTHER;REEL/FRAME:023322/0534

Effective date: 20070827

AS Assignment

Owner name: RWM SCHWEIZ AG, SWITZERLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DIEWALD, GUNTHER;REEL/FRAME:024355/0680

Effective date: 20100222

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION