EP2167904A1 - Scheibenförmiger treibspiegel - Google Patents
Scheibenförmiger treibspiegelInfo
- Publication number
- EP2167904A1 EP2167904A1 EP08773721A EP08773721A EP2167904A1 EP 2167904 A1 EP2167904 A1 EP 2167904A1 EP 08773721 A EP08773721 A EP 08773721A EP 08773721 A EP08773721 A EP 08773721A EP 2167904 A1 EP2167904 A1 EP 2167904A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sabot
- projectile body
- projectile
- cavity
- barrel
- 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.)
- Ceased
Links
- 239000007789 gas Substances 0.000 claims abstract description 14
- 239000003380 propellant Substances 0.000 claims description 16
- 238000000926 separation method Methods 0.000 claims description 7
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 230000001133 acceleration Effects 0.000 claims 1
- 230000003116 impacting effect Effects 0.000 abstract 1
- 238000010304 firing Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 230000001447 compensatory effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000002269 spontaneous 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
- F42B7/00—Shotgun ammunition
- F42B7/02—Cartridges, i.e. cases with propellant charge and missile
- F42B7/08—Wads, i.e. projectile or shot carrying devices, therefor
Definitions
- the invention relates to a disc-shaped sabot for accelerating a shootable from a designed as a smooth tube Verschussrohres, preferably same-caliber projectile body.
- disk-shaped sabot also referred to as traction sheaves
- traction sheaves disk-shaped sabot
- Known with these known sabot is to achieve that a subcaliber trained Projectile at launch has reached a high initial velocity and has a slight drop in velocity as the flight progresses, with the sabot enclosing the respective projectile body in a form-fitting manner at the rear and having an outer diameter corresponding to the caliber of the weapon barrel.
- a disadvantage of the known propellant mirrors inter alia, that in the separation of the sabot from the projectile body often a mechanical influence of the projectile body takes place, so that the projectile body a Abgangspara is impressed.
- there may be oscillations of the projectile body which must be compensated in the further flight of the respective projectile body, such as by a compensatory spin.
- the invention is based on the object, a sabot to accelerate a indicate bullet body which can be fired from a smooth tube and which is preferably of the same caliber and which separates from the bullet body immediately after passing through the mouth of the respective bullet tube, without disturbing the course of flight of the bullet body appreciably.
- the invention is based essentially on the idea that a bullet-tail side and preferably one-piece sabot as a result of a dosed controlled derived pressure difference, enclosed between the geunterheckseitgen propellant inner contour and bullet tail to be so effective that this pressure level due to the standard physical effects after Muzzle passage as an expanded air spring largely spontaneous initiates the separation of projectile and sabot spontaneously.
- the sabot is designed such that it is supported on the rear-side area of the projectile body only in partial areas in order to transfer the gas pressure forces occurring during firing in such a way that at least one cavity remains between the sabot and the rear of the projectile body, and that at least one pressure reduction hole is passed through the wall of the sabot, through which controlled propellant gases penetrate into the cavity between the sabot and the rear of the projectile body and produce a defined over the outer air pressure pressure, which is a separation of the sabot of the projectile body causes as soon as the projectile consisting of projectile body and sabot projectile arrangement has passed the mouth of the gun barrel.
- the cavity between the sabot and projectile body should preferably be arranged such that after passing through the mouth of the projectile arrangement a uniform separation of sabot and projectile body is ensured.
- the cavity between the sabot and the rear of the projectile body cavity centrally enclose the central longitudinal axis of the projectile assembly and / or annular.
- the sabot is dish-shaped with a curved in relation to the rear of the projectile body outward bottom, the bottom is at the outer edge of the projectile body and in the central region of the projectile body via an annular Abstützsteg at the rear of the projectile body supported.
- the support web is selected such that the introduction of force takes place in the areas of the projectile body, which also withstand the launch loads during pipe passage.
- the sabot is preferably made of a light metal, preferably of an aluminum alloy.
- FIG. 1 shows the longitudinal section through a part of a weapon barrel with an opening to the gun barrel moving, consisting of a projectile body and a sabot projectile assembly and
- FIG. 2 shows the projectile arrangement shown in FIG. 1 after leaving the weapon barrel.
- a weapon barrel of a smooth-bore weapon (for example a mortar) is designated, in which a projectile arrangement 2 is located, which moves toward the mouth 4 of the weapon barrel 1 after ignition of a propellant, not shown, due to the generated high-pressure propellant charge gases 3.
- the projectile assembly 2 is composed of a full-caliber projectile body 5 and a rear side arranged on the projectile body 5 according to the invention tellerförmi- The sabot 6 of an aluminum alloy together, which also has an outer diameter corresponding to the caliber of the gun barrel 1.
- the illustrated projectile body 5 is not a combat bullet but, for example, the assembly of a rocket whose firing resistance is to be tested.
- the projectile body 5 is shown in simplified form only as a solid body. However, it can of course also be a hollow body, for example, for receiving control electronics, fuel or propellant powder, etc., act.
- the one-piece plate-shaped sabot 6 has a with respect to the rear 7 of the projectile body 5 outwardly curved bottom 8, wherein the bottom 8 at the outer edge 9 and in the central region of the projectile body 5 via an annular Abstützsteg 10 at the rear of the projectile body 7 5 is supported, so that between the rear 7 of the projectile body 5 and the sabot 6, a central cavity 1 1 and the annular support web 10 surrounding annular cavity 12 is formed.
- a pressure reduction hole 13 is passed through which the released during firing of the projectile 2 propellant charge gases 3 first in the annular cavity 12 and then penetrate controlled via an opening not shown in Figure 1 into the central cavity 11, so that in the cavities 1 1, 12 a defined over the outer air pressure pressure is generated.
- the invention is not limited to the embodiment described above. So it is not necessarily at the Verschussrohr to a But it can also be a specially manufactured for experimental purposes Verschußrohr.
- the propellant gases may be provided by another propellant (eg, a nitrogen gas source) rather than by a propellant charge.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Toys (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007033833A DE102007033833A1 (de) | 2007-07-18 | 2007-07-18 | Scheibenförmiger Treibspiegel |
| PCT/EP2008/005246 WO2009010172A1 (de) | 2007-07-18 | 2008-06-27 | Scheibenförmiger treibspiegel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2167904A1 true EP2167904A1 (de) | 2010-03-31 |
Family
ID=39938232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08773721A Ceased EP2167904A1 (de) | 2007-07-18 | 2008-06-27 | Scheibenförmiger treibspiegel |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20100180789A1 (de) |
| EP (1) | EP2167904A1 (de) |
| DE (1) | DE102007033833A1 (de) |
| WO (1) | WO2009010172A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11131530B2 (en) * | 2018-01-29 | 2021-09-28 | Lawrence Livermore National Security, Llc | Opto-thermal laser detonator |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3055268A (en) * | 1960-12-08 | 1962-09-25 | Rosenthal Henry | Discarding obturator and rotator for projectiles |
| DE2630830A1 (de) * | 1976-07-09 | 1978-01-19 | Dynamit Nobel Ag | Treibspiegelgeschoss |
| US4296687A (en) * | 1979-07-16 | 1981-10-27 | The United States Of America As Represented By The Secretary Of The Army | Segmented sabot projectile |
| US4314510A (en) * | 1980-01-28 | 1982-02-09 | The United States Of America As Represented By The Secretary Of The Army | Kinetic sabot system |
| JPS56147000A (en) * | 1980-04-15 | 1981-11-14 | Nagatoshi Maki | Short range shell charging for shot gun with drawn barrel |
| US4669385A (en) * | 1983-09-28 | 1987-06-02 | Nagatoshi Maki | Wad for shotgun shotshell |
| DE3815738A1 (de) * | 1988-05-07 | 1989-11-16 | Brenneke Wilhelm Kg | Patrone mit flintenlaufgeschoss |
-
2007
- 2007-07-18 DE DE102007033833A patent/DE102007033833A1/de not_active Withdrawn
-
2008
- 2008-06-27 WO PCT/EP2008/005246 patent/WO2009010172A1/de not_active Ceased
- 2008-06-27 US US12/669,356 patent/US20100180789A1/en not_active Abandoned
- 2008-06-27 EP EP08773721A patent/EP2167904A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009010172A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20100180789A1 (en) | 2010-07-22 |
| DE102007033833A1 (de) | 2009-01-22 |
| WO2009010172A1 (de) | 2009-01-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20091105 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL BA MK RS |
|
| 17Q | First examination report despatched |
Effective date: 20100528 |
|
| DAX | Request for extension of the european patent (deleted) | ||
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R003 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
|
| 18R | Application refused |
Effective date: 20111007 |