EP2872850A1 - Granate, insbesondere 40-mm-granate - Google Patents
Granate, insbesondere 40-mm-granateInfo
- Publication number
- EP2872850A1 EP2872850A1 EP13732362.2A EP13732362A EP2872850A1 EP 2872850 A1 EP2872850 A1 EP 2872850A1 EP 13732362 A EP13732362 A EP 13732362A EP 2872850 A1 EP2872850 A1 EP 2872850A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chamber
- pressure
- grenade
- pressure chamber
- bursting membrane
- 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
- 239000003380 propellant Substances 0.000 claims abstract description 33
- 230000009172 bursting Effects 0.000 claims description 35
- 239000012528 membrane Substances 0.000 claims description 34
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 229910001369 Brass Inorganic materials 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000010951 brass Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000010304 firing Methods 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 230000000750 progressive effect Effects 0.000 description 2
- 230000007123 defense Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000000926 separation method Methods 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C19/00—Details of fuzes
- F42C19/08—Primers; Detonators
- F42C19/0823—Primers or igniters for the initiation or the propellant charge in a cartridged ammunition
- F42C19/083—Primers or igniters for the initiation or the propellant charge in a cartridged ammunition characterised by the shape and configuration of the base element embedded in the cartridge bottom, e.g. the housing for the squib or percussion cap
-
- 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
Definitions
- Grenade in particular 40 mm grenade
- the invention relates to a grenade, in particular a 40 mm grenade, comprising a cartridge, a projectile and a high-pressure low-pressure ignition system comprising a hollow cylindrical chamber component with a high-pressure chamber receiving a propellant charge and a low-pressure chamber located outside the chamber component, via one or more can be connected to each other in the chamber component via openable upon ignition of the propellant pressure pressure channels.
- Grenades are known in different design and with different caliber, they serve primarily to combat more distant targets.
- caliber smaller grenades in particular 40 -mm shells, known, which are used primarily in the infantry area and make it possible, even targets that are outside the maximum range of hand grenades to fight without relying on the support of other weapons or branches.
- a 40 mm grenade is a cartridge ammunition that has a
- Grenade launcher can be fired.
- Grenades especially 40 mm grenades, work with a high pressure low pressure ignition system.
- This comprises two chambers, namely a high pressure chamber and a low pressure chamber.
- the high pressure chamber is realized by means of a hollow cylindrical chamber component.
- In the high pressure chamber is the ignitable via a primer or the like propellant charge.
- a pressure> 1000 bar is formed in the high-pressure chamber.
- From a certain pressure there is an opening of one or more channels provided on the chamber component, which lead into the low-pressure chamber surrounding the chamber component.
- This low-pressure chamber communicates with the floor of the floor or is limited by it. By opening the channels in the low pressure chamber - -
- the projecting gas pressure on the floor of the bullet is then fired from the cartridge.
- grenades In order to shoot the projectile at a reasonably defined speed, it is necessary to realize a certain ratio of high-pressure chamber volume to low-pressure chamber volume.
- three different types of grenades are known for 40 mm grenades, namely a low velocity grenade with a projectile firing speed of approximately 75 m / s, a medium velocity grenade with a firing speed of approximately 100 m / s and a high velocity grenade with a launch speed of approx. 240 m / s.
- the amount of propellant charge also plays a role in achieving a desired launch speed, with only a relatively small amount in the gram range usually being required.
- This propellant charge is as stated in the high pressure chamber, which is formed by the hollow cylindrical chamber member. However, this volume is significantly larger than the propellant charge.
- the propellant is therefore movable in the high pressure chamber, d. h., That there is no defined position relative to the primer or the like, over which the propellant charge is ignited given. This leads to the fact that depending on the location of the propellant charge relative to the primer Undefined Zündmik are given, which is shot to shot to a
- the aim is therefore to specify a grenade, in particular a 40-mm grenade, the, preferably in execution "medium velocity" granite a defined ignition and thus the firing of individual shells with good reproducible
- the grenade according to the invention ultimately provides a three-chamber ignition system, comprising a high pressure chamber, which consists of two individual chambers, and the low pressure chamber.
- the first chamber portion of the high pressure chamber is sized in volume so that it is preferably completely filled with the propellant, so that consequently can not move and is always in a defined position relative to the primer or the like.
- the first chamber section is separated from the second chamber section by a bursting membrane, wherein the first chamber section and the second chamber section together form the high-pressure chamber and are dimensioned in the total volume such that the defined, required volume ratio of high-pressure chamber to low-pressure chamber results.
- the propellant charge ignited, it burns initially only in the first chamber section, it comes to generating pressure in the first chamber section.
- a bursting pressure which is for example in the range of 200 - 300 bar, ruptures the bursting membrane, the two chamber sections combine to form a common high-pressure chamber.
- the channels which in turn connect the high pressure chamber with the low pressure chamber. The gas can now flow into the low-pressure chamber and is at
- the channels open only when a correspondingly high pressure of 1200 - 1300 bar is given, what a corresponding Consequently, it is also possible to provide the duct or ducts in the region of the first chamber section originally containing the propellant charge. As described, however, they can also be provided in the area of the second chamber section which does not contain the propellant charge.
- a particularly expedient development of the invention provides for receiving the bursting membrane slidably in the high-pressure chamber and clamping in the respective position.
- This embodiment of the invention makes it possible to slightly vary the volumes of the first and second chamber sections, depending on the positioning of the bursting membrane. That is, that depending on the arrangement of the bursting membrane the
- volume of the first chamber portion and thus the amount of propellant charge can be sized smaller or larger, which consequently the charging density can be easily adjusted.
- the bursting membrane adjacent to an abutment, consequently in an always defined position in the chamber component, so that therefore always a respectively defined volume of the first and second chamber section is given.
- the bursting membrane is arranged on a cup whose cylindrical portion covers the channel or channels. As described, the channels are only opened when a correspondingly high pressure is given in the high-pressure chamber. Before that they are closed. In order to close the channels used according to this invention embodiment, a cup, which also has the bursting membrane.
- the membrane ruptures, but the cylindrical collar of the cup still closes the channel or channels. Only when the corresponding pressure level of, for example, 1200 or 1300 bar is reached in the high-pressure chamber, the cup material in the region of the channels or channels, it is literally punched out, open the channels. So the cup comes one
- the bursting membrane itself is designed as a separate component, it comprises a retaining ring, in which the actual membrane section is arranged, wherein the bursting membrane is fixed in clamping manner in the chamber component via the retaining ring.
- the bursting membrane itself is preferably made of metal, in particular a metal sheet, wherein as metal in particular copper, brass or aluminum is suitable.
- the support of the projectile itself in the cartridge can be done in different ways.
- On the one hand can be provided on the chamber component a separable via a predetermined breaking point threaded connector on which the projectile is screwed. In the area of the predetermined breaking point, the threaded neck breaks off when a sufficient pressure is present in the low-pressure chamber.
- An alternative provides to connect the projectile with the cartridge via a crimp connection, d. h., That the fixation of the projectile takes place here directly on the cartridge.
- Fig. 2 is a sectional view through a chamber member with movably arranged
- FIG 3 shows a chamber component with separate bursting membrane and separate ring
- FIG. 4 shows a chamber component with a stop resting against a stop.
- FIG. 1 shows a grenade 1 according to the invention, for example a 40 mm grenade. It comprises a grenade sleeve or a cartridge 2 into which a chamber component 3 is inserted.
- the chamber component 3 has, see FIG. 2, a threaded portion 4, which is screwed into a corresponding threaded portion 5 of the cartridge 2 in order to fix the chamber component 3 in the cartridge 2.
- a closure plate 6 is inserted, which closes the chamber member 3.
- a primer 8 is arranged, which serves to ignite a propellant charge 9, which is arranged in the interior of the chamber member 3.
- a threaded connector 10 is further provided, which is screwed into a corresponding threaded bore on a projectile 11, which threaded bore is arranged on the floor of the bullet, about which the bullet is fixed on the cartridge side.
- the hollow-cylindrical chamber component 3 defines in its interior a high-pressure chamber 12, which is surrounded by a low-pressure chamber 13 closed by way of the cartridge 2 and the floor of the projectile.
- the high-pressure chamber 12 in turn is divided into two chamber sections, namely a first chamber section 14 and a second chamber section 15. Both are sealed off from each other via a bursting membrane 16, respectively, which bursting membrane 16 is arranged in the embodiment shown on a cup 17 respectively formed integrally therewith.
- the cup 17 is received via its cylindrical portion 18 by clamping in the hollow cylindrical chamber member, wherein its hollow cylindrical portion 18 closes a plurality of channels 19.
- These channels 19 represent a pressure-dependently disclosed connection between the high-pressure chamber 12 and the low-pressure chamber 13.
- the first chamber portion 14 is completely filled with the propellant charge 9. This is therefore arranged fixed in position relative to the primer cap 8, so consequently always defined ignition conditions are given. Depending on how the cup 17 is positioned, the volume of the first chamber portion 14 can be adjusted, thus therefore a volume adjustment and thus optimize the charging density.
- the propellant charge 9 ignited via the primer 8
- it burns off, it comes to pressure generation in the first chamber section 14.
- the bursting membrane 16 opens, so that the two Combine chamber sections 14, 15 to the entire high pressure chamber 12, that is, that for the subsequent combustion, the entire chamber volume of the high pressure chamber 12 is available.
- the channels 19 With progressive pressure increase during burning of the Propellant charge 9 and upon reaching a corresponding pressure level of the cup 17 and the cylindrical portion 18 is punched through at the channels 19, ie, that the channels 19 are opened and the high pressure chamber 12 connects to the low pressure chamber.
- the gas can now flow into the low-pressure chamber 13. As the pressure increases, an ever higher gas pressure is applied to the floor of the storey.
- a predetermined breaking point 20 via which the threaded neck 10 is connected to the chamber component 3, tears off, the projectile is fired.
- the predetermined breaking point 20 can be set very accurately, so that a defined pressure-related demolition can be achieved.
- the defined ignition and combustion conditions respectively pressure conditions and the corresponding design of the predetermined breaking point 20 with low tolerance, a well reproducible projectile speed can be achieved from grenade to grenade.
- the cup 17 is preferably made of a copper, brass or aluminum sheet. Depending on the bursting pressure to be set with regard to the bursting membrane or bursting pressure in the
- Region of the channels, the corresponding metal material or the corresponding sheet metal thickness is selected.
- FIG. 3 shows a further embodiment which allows separation of the high-pressure chamber 12 into a first chamber section 14 receiving the propellant charge and a second chamber section 15.
- a bursting membrane 16 which, however, here is a separate component and is fixed by way of an edge-side retaining ring 21 which is to be received by clamping in the chamber component 3.
- the coverage of the channels 19 takes place here by means of a separate ring 22.
- the bursting membrane is 1.6 movable, d. h., That the volume of the first and second chamber portion 14, 15 can be adjusted by appropriate positioning of the bursting membrane 16 and thus the loading density can be optimized.
- defined ignition and thus burning conditions can be achieved. The operation is the same as described in the above embodiment. Again, it comes with reaching a sufficient
- FIG. 4 shows an embodiment in which a ring collar 23, which forms a stop 24 for the cup 17, is provided on the chamber component 3.
- the cup 17 in turn has a bursting membrane 16, but it is here in a reverse arrangement (compared with FIG. 2) positioned. Its cylindrical portion 18 is directed here in the direction of the end plate 6.
- the channels 19 shown here only by dashed lines are provided in this embodiment in the region of the first chamber section 14 receiving the propellant charge, while they are positioned in the region of the second chamber section 15 in the embodiment according to FIG.
- the operation is the same as the previously described embodiments.
- With ignition it first comes to the combustion of the propellant charge and thus pressure build-up in the first chamber portion 14 and at sufficient pressure to burst the bursting membrane 16.
- the cup 17 is punched through again to open the channels 19, so that the high pressure chamber 12 is connected to the low pressure chamber 13 and it comes in succession to the completion of the projectile.
- no volume variation with respect to the volume of the first and second chamber sections 14, 15 is possible here after the cup 17 rests against the stop 24.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Air Bags (AREA)
- Toys (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL13732362T PL2872850T3 (pl) | 2012-07-14 | 2013-06-21 | Granat, zwłaszcza granat 40 mm |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012014043.6A DE102012014043B4 (de) | 2012-07-14 | 2012-07-14 | Granate, insbesondere 40-mm-Granate |
PCT/EP2013/001856 WO2014012616A1 (de) | 2012-07-14 | 2013-06-21 | Granate, insbesondere 40-mm-granate |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2872850A1 true EP2872850A1 (de) | 2015-05-20 |
EP2872850B1 EP2872850B1 (de) | 2016-09-21 |
Family
ID=48703403
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13732362.2A Active EP2872850B1 (de) | 2012-07-14 | 2013-06-21 | Granate, insbesondere 40-mm-granate |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP2872850B1 (de) |
AU (1) | AU2013292784B2 (de) |
DE (1) | DE102012014043B4 (de) |
IL (1) | IL236027B (de) |
PL (1) | PL2872850T3 (de) |
SG (1) | SG11201407436QA (de) |
WO (1) | WO2014012616A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014016469B4 (de) | 2014-11-06 | 2016-05-25 | Diehl Bgt Defence Gmbh & Co. Kg | Zündvorrichtung zum Zünden einer Treibladung |
DE102017110871A1 (de) | 2017-05-18 | 2018-11-22 | Rheinmetall Waffe Munition Gmbh | Antriebssystem für Patronenmunition |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3309994A (en) | 1965-03-29 | 1967-03-21 | Frederick A Lage | Shot shell |
US3788224A (en) | 1966-06-24 | 1974-01-29 | Federal Cartridge Corp | Nested wad column and method of shot shell loading |
US3516357A (en) | 1968-01-25 | 1970-06-23 | Grover E Hendricks | Ammunition cartridge |
US3776136A (en) * | 1971-12-30 | 1973-12-04 | Aai Corp | Ammunition arrangement |
DE3441556A1 (de) * | 1983-11-29 | 1985-06-05 | Oregon Etablissement für Patentverwertung, Mauren | Aufschlagzuender |
DE3507643A1 (de) | 1985-03-05 | 1986-09-11 | Nico-Pyrotechnik Hanns-Jürgen Diederichs GmbH & Co KG, 2077 Trittau | Patronierte munition |
DE8516610U1 (de) | 1985-06-07 | 1985-10-31 | Rheinmetall GmbH, 4000 Düsseldorf | Übungspatrone |
DE3918005A1 (de) * | 1988-09-22 | 1990-04-05 | Rheinmetall Gmbh | Granatengeschoss |
ES2046044T3 (es) | 1990-01-15 | 1994-01-16 | Udo Winter | Cartucho, especialmente cartucho de granadas. |
DE19527621A1 (de) * | 1995-07-28 | 1997-01-30 | Nico Pyrotechnik | Patronierte Munition |
DE19738937C2 (de) * | 1997-09-05 | 1999-07-29 | Nico Pyrotechnik | Patronierte Munition |
US6041712A (en) | 1997-12-11 | 2000-03-28 | The United States Of America As Represented By The Secretary Of The Army | Non-lethal cartridge with spin-stabilized projectile |
RU2133438C1 (ru) | 1998-04-15 | 1999-07-20 | Центральный научно-исследовательский институт точного машиностроения | Патрон |
DE10303106B4 (de) * | 2002-01-29 | 2013-01-10 | Ruag Munition | Barrikadenbrecher |
US7021219B1 (en) | 2004-01-02 | 2006-04-04 | The United States Of America As Represented By The Secretary Of The Army | Non-lethal telescoping cartridge |
US7481167B2 (en) | 2004-02-06 | 2009-01-27 | John Whitworth Engel | High-pressure fixed munition for low-pressure launching system |
WO2008099353A1 (en) * | 2007-02-14 | 2008-08-21 | Rippel Effect Weapon Systems (Proprietary) Limited | Grenade |
DE102009048365B3 (de) | 2009-10-06 | 2010-10-07 | Rheinmetall Waffe Munition Gmbh | Patronierte Munition mit einer Berstvorrichtung als Verbindung zwischen Geschoss und Antrieb |
SG181192A1 (en) * | 2010-11-25 | 2012-06-28 | Advanced Material Engineering Pte Ltd | A cartridged projectile |
RU2453797C1 (ru) | 2011-03-05 | 2012-06-20 | Михаил Иосифович Фильковский | Травматический патрон (варианты) |
EP2734805A1 (de) * | 2011-07-21 | 2014-05-28 | Diehl BGT Defence GmbH & Co.KG | Patronierte munition |
-
2012
- 2012-07-14 DE DE102012014043.6A patent/DE102012014043B4/de active Active
-
2013
- 2013-06-21 EP EP13732362.2A patent/EP2872850B1/de active Active
- 2013-06-21 WO PCT/EP2013/001856 patent/WO2014012616A1/de active Application Filing
- 2013-06-21 AU AU2013292784A patent/AU2013292784B2/en active Active
- 2013-06-21 PL PL13732362T patent/PL2872850T3/pl unknown
- 2013-06-21 SG SG11201407436QA patent/SG11201407436QA/en unknown
-
2014
- 2014-12-02 IL IL236027A patent/IL236027B/en active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO2014012616A1 * |
Also Published As
Publication number | Publication date |
---|---|
IL236027B (en) | 2018-10-31 |
AU2013292784B2 (en) | 2017-04-13 |
PL2872850T3 (pl) | 2017-08-31 |
EP2872850B1 (de) | 2016-09-21 |
DE102012014043A1 (de) | 2014-01-16 |
IL236027A0 (en) | 2015-01-29 |
AU2013292784A1 (en) | 2015-02-26 |
SG11201407436QA (en) | 2015-03-30 |
DE102012014043B4 (de) | 2014-02-13 |
WO2014012616A1 (de) | 2014-01-23 |
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