EP1794537A1 - Explosive body - Google Patents
Explosive bodyInfo
- Publication number
- EP1794537A1 EP1794537A1 EP05768690A EP05768690A EP1794537A1 EP 1794537 A1 EP1794537 A1 EP 1794537A1 EP 05768690 A EP05768690 A EP 05768690A EP 05768690 A EP05768690 A EP 05768690A EP 1794537 A1 EP1794537 A1 EP 1794537A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- body according
- active
- active body
- mass block
- pyrotechnic
- 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.)
- Granted
Links
- 239000002360 explosive Substances 0.000 title abstract 5
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000000126 substance Substances 0.000 claims abstract description 8
- 239000000020 Nitrocellulose Substances 0.000 claims abstract description 5
- 229920001220 nitrocellulos Polymers 0.000 claims abstract description 5
- SNIOPGDIGTZGOP-UHFFFAOYSA-N Nitroglycerin Chemical compound [O-][N+](=O)OCC(O[N+]([O-])=O)CO[N+]([O-])=O SNIOPGDIGTZGOP-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000000006 Nitroglycerin Substances 0.000 claims abstract description 3
- LYAGTVMJGHTIDH-UHFFFAOYSA-N diethylene glycol dinitrate Chemical compound [O-][N+](=O)OCCOCCO[N+]([O-])=O LYAGTVMJGHTIDH-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229960003711 glyceryl trinitrate Drugs 0.000 claims abstract description 3
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 8
- 230000005855 radiation Effects 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 4
- 235000010333 potassium nitrate Nutrition 0.000 claims description 4
- 239000004323 potassium nitrate Substances 0.000 claims description 4
- 229910052796 boron Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000008187 granular material Substances 0.000 claims description 2
- 238000004080 punching Methods 0.000 claims 1
- 238000007788 roughening Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 4
- 239000011888 foil Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 229910021536 Zeolite Inorganic materials 0.000 description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 239000010457 zeolite Substances 0.000 description 2
- 239000013543 active substance Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000011872 intimate mixture Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
- F42B5/02—Cartridges, i.e. cases with charge and missile
- F42B5/16—Cartridges, i.e. cases with charge and missile characterised by composition or physical dimensions or form of propellant charge, with or without projectile, or powder
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B45/00—Compositions or products which are defined by structure or arrangement of component of product
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
- C06C15/00—Pyrophoric compositions; Flints
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B4/00—Fireworks, i.e. pyrotechnic devices for amusement, display, illumination or signal purposes
- F42B4/26—Flares; Torches
Definitions
- the invention relates to an active body according to the preamble of patent claim 1.
- Active bodies for the protection of military objects for example aircraft from infrared-guided missiles, are sufficiently known.
- these are pyrotechnically generated heat sources which emit hot radiation.
- An infrared target is disclosed in DE 40 07 811 C2. This has a spectral distribution of the IR radiation of only very moderately warm targets.
- zeolite powder is used, which is suitable for absorbing atmospheric moisture. It can be used as a coating on a body or as a finely divided cloud of powder particles floating in the air. In principle, all zeolite types or powders with zeolite-like crystal structures are suitable.
- the fire charge consists in one embodiment of an intimate mixture of potassium nitrate and metallic boron.
- the fire rate is applied with the aid of a nitrocellulose binder on a metal foil.
- DE 42 44 682 A1 discloses a high-intensity pyrotechnic infrared flare torch. This serves to deflect a projectile which is approaching an aircraft.
- the dousing torch has a section of compact bubble-free pressed separate pieces of gas-releasing high-intensity infrared-emitting pyrotechnic compositions contained in a rupturable airtight container.
- infrared decoy target for a helicopter is also described in GB 2 327 116 A. From US Pat. No. 5,343,794 a further infrared target is known. Possible material compositions Such decoys can be found in US 6,675,716 and US 5,435,224 and US 5,343,794. Pyrotechnic fog sets are described in WO 00/58237 A1 and WO 00/58238.
- DE 196 05 337 C2 describes a method for modifying the spatial and temporal infrared structure of an aircraft on account of the new generation of infrared guided missiles with built-in flare protection circuits.
- the proposal is to artificially alter the spatial infrared signature of an aircraft not only in a narrow spatial area on the fuselage, but over typical flight dimensions.
- Another method for providing a dummy target body is DE 42 38 038 C1 removable. This is distinguished by the fact that the active masses simulating the dummy target body are brought into the position of the dummy target body to be generated in such a way and decomposed there that a spectral-spatial target signature of the object is generated for a homing head.
- the object of the invention is to create an active body which has an effective IR decoy target, for example for aircraft, an object-like spectral radiation signature with high radiation content in the area of the plasma irradiation against modern Kli ⁇ at the beginning of the ignition over the entire duration of action, a has a specific blooming process with steep rising edges and a sufficiently long action time. Furthermore, the efficacy should also be given at high altitudes with low oxygen and no performance losses at high ejection speeds (due to flow effects).
- the invention is based on the idea of providing an active body with structures having at least one active mass block of monobasic or polybasic high-energy materials on the surface. Depending on the pattern (structure) and depth, this requires an enlargement of the surface, as a result of which the burning rate of the active mass block and thus the duration of action of the active body can be controlled.
- the active mass block preferably has one or more channels / cavities in the interior, as a result of which an inward-protected initiation of the active mass block in the interior is made possible.
- the active body effective mass block
- metallic cover plates and protective foils it is thus ensured that losses of the IR radiation at high flow velocities, such as occur when the active body (effective mass block) is ejected from the aircraft, are avoided.
- gas and temperature bridges are of further advantage. These can be created by slots, perforations and / or holes between the inner channels. By a selectable number, size and arrangement of these bridges and the remaining wall thickness a defined timing of the overflamming on the outer surfaces is possible.
- the specific blooming behavior is preferably set by filling the channels with, for example, finely structured material of the same substance but with respect to the active mass block significantly increased surface / mass ratio.
- the steepness of the rising edge can be increased with increasing surface / mass ratio.
- the igniting of the active compositions is carried out in a preferred embodiment within the channels in the active mass block by preferably pyrotechnic ignition charges.
- a spontaneous, flow-dependent ignition is ensured and, on the other hand, an interference radiation originating from the ignition charge is prevented.
- FIG. 1 shows an active mass block which has two structures on its surface, for example in the form of grooves.
- the active mass block 1 has inside one or more channels / cavities 3 and filled therein effective mass substances 4.
- This Substance may be a finely structured material of the same substance but compared to the Wirkmas ⁇ senblock 1 significantly increased surface / mass ratio.
- materials with a high radiation fraction in the wavelength range are preferably between 4.1 and 4.6 ⁇ m, for example a nitrocellulose mixture with about 60% nitroglycerin and 40% diethylene glycol dinitrate.
- These active substance substances 4 can be present in the form of rods (about 0.2 to 3 mm in diameter), flakes, platelets or granules and can thus be used.
- the active mass block 1 further comprises a flow protection 5, which is formed here from a cover or protective cap 5a and a protective film 5b.
- 6 designates gas and temperature bridges, which are formed by slots, perforations or bores.
- a pyrotechnic ignition charge 7 is provided, which is preferably formed by powdered boron / potassium nitrate (proportions about 50% boron / 50% potassium nitrate).
- This primer 7 can be used in a particle size of about 0.2 to 3 mm.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Metallurgy (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Air Bags (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004047231A DE102004047231B4 (en) | 2004-09-28 | 2004-09-28 | submunitions |
PCT/EP2005/008167 WO2006034746A1 (en) | 2004-09-28 | 2005-07-28 | Explosive body |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1794537A1 true EP1794537A1 (en) | 2007-06-13 |
EP1794537B1 EP1794537B1 (en) | 2012-02-29 |
Family
ID=35106944
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05768690A Active EP1794537B1 (en) | 2004-09-28 | 2005-07-28 | Active charge |
Country Status (4)
Country | Link |
---|---|
US (1) | US8783183B2 (en) |
EP (1) | EP1794537B1 (en) |
DE (1) | DE102004047231B4 (en) |
WO (1) | WO2006034746A1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007040529B4 (en) | 2007-08-28 | 2013-08-01 | Diehl Bgt Defence Gmbh & Co. Kg | seeker |
DE102008017722A1 (en) | 2008-04-07 | 2009-10-08 | Rheinmetall Waffe Munition Gmbh | Active mass container |
DE102008017725A1 (en) | 2008-04-07 | 2009-10-08 | Rheinmetall Waffe Munition Gmbh | Decoy target with simple safety device |
DE102010024848A1 (en) | 2010-06-23 | 2011-12-29 | Rheinmetall Waffe Munition Gmbh | projectile |
DE102013010266A1 (en) * | 2013-06-18 | 2014-12-18 | Diehl Bgt Defence Gmbh & Co. Kg | Decoy target active body with a pyrotechnic active mass |
DE102013108822C5 (en) * | 2013-08-14 | 2017-08-10 | Krauss-Maffei Wegmann Gmbh & Co. Kg | Weapon and projectile with RFID system |
DE102014012657B4 (en) | 2014-08-22 | 2019-12-19 | Diehl Defence Gmbh & Co. Kg | Active body with an active mass and a covering |
DE202014006882U1 (en) | 2014-08-22 | 2014-09-18 | Diehl Bgt Defence Gmbh & Co. Kg | Active body with an active mass and a coating |
DE202015003966U1 (en) | 2015-06-08 | 2015-07-24 | Rheinmetall Waffe Munition Gmbh | fog ammunition |
DE102019126466A1 (en) | 2019-10-01 | 2021-04-01 | Rheinmetall Waffe Munition Gmbh | Active body and method for igniting an active body |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US617738A (en) * | 1899-01-17 | Variable-speed frictional gearing | ||
US2210871A (en) * | 1938-11-23 | 1940-08-06 | Hercules Powder Co Ltd | Process for the manufacture of smokeless powder |
US3938444A (en) * | 1974-07-05 | 1976-02-17 | The United States Of America As Represented By The Secretary Of The Navy | Flare cartridge |
DE2614196A1 (en) * | 1976-04-02 | 1977-10-13 | Dynamit Nobel Ag | INFRARED RADIATOR |
US5435224A (en) * | 1979-04-04 | 1995-07-25 | The United States Of America As Represented By The Secretary Of The Navy | Infrared decoy |
US6675716B1 (en) * | 1980-08-25 | 2004-01-13 | The United States Of America As Represented By The Secretary Of The Navy | Pyrotechnic pellet decoy method |
DE3402546A1 (en) * | 1984-01-26 | 1985-08-01 | Pyro-Chemie Hermann Weber & Co GmbH, 5208 Eitorf | PYROTECHNICAL SET FOR THE PRODUCTION OF FLASHES |
US5074216A (en) * | 1987-09-03 | 1991-12-24 | Loral Corporation | Infrared signature enhancement decoy |
DE4007811C2 (en) * | 1990-03-12 | 1994-05-19 | Dornier Gmbh | Infrared dummy target |
GB9120801D0 (en) * | 1991-10-01 | 1995-03-08 | Secr Defence | Propelled pyrotechnic decoy flare |
GB9120803D0 (en) * | 1991-10-01 | 1995-03-08 | Secr Defence | Pyrotechnic decoy flare |
GB2266944B (en) | 1992-05-12 | 1995-08-02 | Marconi Gec Ltd | Flare arrangements |
DE4238038C1 (en) | 1992-11-11 | 1994-06-16 | Buck Chem Tech Werke | Method of providing a dummy target |
GB2300035B (en) * | 1993-07-29 | 1997-09-24 | Lacroix Soc E | An infrared decoy cartridge, and decoy apparatus including such a cartridge |
DE4327976C1 (en) * | 1993-08-19 | 1995-01-05 | Buck Chem Tech Werke | Flare charge for producing decoys |
US5487851A (en) * | 1993-12-20 | 1996-01-30 | Thiokol Corporation | Composite gun propellant processing technique |
US5456455A (en) * | 1994-02-01 | 1995-10-10 | Thiokol Corporation | Flare pellet and process for making same |
DE19605337C2 (en) * | 1996-02-14 | 1998-12-03 | Daimler Benz Aerospace Ag | Process for changing the infrared signature of an aircraft |
IL121276A (en) * | 1997-07-10 | 2000-01-31 | Israel Military Ind | Decoy flare |
US6427599B1 (en) * | 1997-08-29 | 2002-08-06 | Bae Systems Integrated Defense Solutions Inc. | Pyrotechnic compositions and uses therefore |
DE19914095A1 (en) * | 1999-03-27 | 2000-09-28 | Piepenbrock Pyrotechnik Gmbh | Pyrotechnic mist set for generating an aerosol that is impenetrable in the visible, infrared and millimeter-wave range |
DE19914097A1 (en) * | 1999-03-27 | 2000-09-28 | Piepenbrock Pyrotechnik Gmbh | Pyrotechnic active mass for generating an aerosol that is highly emissive in the infrared and impenetrable in the visual |
JP4276348B2 (en) * | 1999-12-16 | 2009-06-10 | 日本工機株式会社 | Infrared decoy flare flying body |
-
2004
- 2004-09-28 DE DE102004047231A patent/DE102004047231B4/en not_active Expired - Fee Related
-
2005
- 2005-07-28 WO PCT/EP2005/008167 patent/WO2006034746A1/en active Application Filing
- 2005-07-28 EP EP05768690A patent/EP1794537B1/en active Active
-
2007
- 2007-03-28 US US11/727,869 patent/US8783183B2/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2006034746A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102004047231A1 (en) | 2006-04-06 |
DE102004047231B4 (en) | 2008-08-21 |
US20070266882A1 (en) | 2007-11-22 |
EP1794537B1 (en) | 2012-02-29 |
US8783183B2 (en) | 2014-07-22 |
WO2006034746A1 (en) | 2006-04-06 |
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