EP3164665A1 - Artilleriegeschoss mit einem dichtring - Google Patents
Artilleriegeschoss mit einem dichtringInfo
- Publication number
- EP3164665A1 EP3164665A1 EP15736228.6A EP15736228A EP3164665A1 EP 3164665 A1 EP3164665 A1 EP 3164665A1 EP 15736228 A EP15736228 A EP 15736228A EP 3164665 A1 EP3164665 A1 EP 3164665A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- leg
- sealing
- sealing ring
- projectile
- groove
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B14/00—Projectiles or missiles characterised by arrangements for guiding or sealing them inside barrels, or for lubricating or cleaning barrels
- F42B14/02—Driving bands; Rotating bands
Definitions
- the invention relates to an artillery projectile with a newly designed sealing ring.
- the illustrated artillery projectile 1 is spin-stabilized and has a projectile casing 10 which is surrounded by a guide belt 20 for swirl transmission.
- the projectile casing 10 is further encompassed by a sealing ring 30.
- the sealing ring 30 is arranged on the rear side of the guide band 20.
- the sealing ring 30, which has a circumferential sealing profile, is held in an outer groove 40 of the projectile casing 10.
- the outer groove 40 includes a groove bottom, which is followed by a rear groove side and a bow-side groove flank.
- Fig. 1 artillery projectile 1 is recognized in the Panzerhaubitze 2000 via a semi-automatic loader.
- the sealing ring 30 is designed to seal überkalibrig and has the function of preventing a Vorbeiströmen the propellant charge gases during firing. This sealing ring 30 must cut into the drawstrings of the weapon barrel when the bullet is applied in order to ensure a seal. This can lead to stripping or destruction of the sealing ring 30.
- the sealing ring 30 can then be staked off the projectile 1 or in extreme cases also break. The latter represents a significant threat to the operating crew in the cargo area.
- the invention is based on the object to form a sealing ring for a generic artillery projectile in such a way that it is functionally reliable with good sealing function even under extreme conditions.
- the advantages of the invention are based on a new design of the circumferential sealing profile of the sealing ring.
- the circumferential sealing profile of the sealing ring has a rear side open V-shape with a first leg and a second leg connected thereto.
- the V-shape opened at the rear causes the sealing effect to increase as the pressure of the rear propellant gases increases.
- the first leg is a Nutgrundschenkel, which encloses the groove bottom.
- the second leg is a resilient sealing leg, whose free end springs radially outward, but as far as can be pressed together that it is completely absorbed by the outer groove and does not protrude. As a result, destruction, stripping of the projectile or other damage is avoided.
- the invention is in a loading position when the artillery shell is received before firing of a gun barrel, formed between Nutgrundschenkel and resilient sealing leg a circumferential annular gap, which allows an influx of propellant gases.
- the inflow of the propellant gases causes the pressure of the propellant gases to the resilient gaskets! spreads further, which increases the sealing effect by the pressure of the propellant gases.
- the resilient sealing leg is beveled at its free end with a widening of the annular gap.
- the broadening of the annular gap facilitates inflow of the propellant gases into the annular gap.
- the resilient sealing leg is formed shorter than the groove bottom leg to form a circumferential inlet opening for propellant gases flowing into the annular gap. This represents a simple design possibility to form an inlet opening for the annular gap.
- FIG. 2 shows an inventive artillery projectile with a newly designed sealing ring, also shown in longitudinal section
- Fig. 3 shows the sealing ring shown in Fig. 2 and its vicinity, shown as an enlarged detail.
- a spin-stabilized artillery shell 1 has a projectile casing 10, which is covered by a guide belt 20 for swirl transmission.
- the shell shell 10 is further encompassed by a sealing ring 30.
- the sealing ring 30 is arranged on the rear side of the guide band 20.
- the sealing ring 30, which has a circumferential sealing profile, is held in an outer groove 40 of the projectile casing 10. Details of the artillery projectile according to the invention will be described with reference to the enlarged detail in Fig. 3.
- the outer groove 40 comprises a groove base 41, followed by a rear groove side 42 and a groove side 43 on the bow side.
- the circumferential sealing profile of the sealing ring has a rear side open V-shape with a first leg and a second leg connected thereto.
- the first leg is a Nutgrinschenkel 31 which surrounds the groove bottom 41.
- the second leg is a resilient sealing leg 32, the free end of which springs radially outward.
- the V-shape has a sealing assistive effect which increases with higher pressure of the propellant charge gases.
- the resilient sealing leg 32 is so far pressed together that it is completely absorbed by the outer groove 40 and does not protrude. As a result, damage to the sealing ring 30 can be avoided. In the loading position shown in Fig.
- the resilient sealing leg 32 is formed shorter to form a circumferential constitutionsöff- 34 for flowing into the annular gap 33 propellant gases, as the groove bottom leg 31st
- the resilient sealing leg 32 Before attaching the artillery projectile 1, the resilient sealing leg 32 is spread further outwards than in the loading position shown in Fig. 3. When charging the resilient sealing leg 32 is pressed against its resilient action in the direction of Nutgroundschenkels 31 and relies on this. In this position, between the resilient sealing leg 32 and the Nutgroundschenkel 31 an annular gap 33 before. During the firing process, the propellant charge gases flow into the annular gap 33. As a result of the build-up of gas pressure in the annular gap 33, the resilient sealing leg 32 is pressed outward into the trajectory of the weapon barrel 2. Due to the Bernoulli effect, a backflow occurring at the beginning of the resilient sealing leg 32 assists the sealing effect since, according to Bernoulli, the backflow effects a contact pressure of the resilient sealing bar 32 on the interior of the weapon barrel.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Gasket Seals (AREA)
- Sealing Devices (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL15736228T PL3164665T3 (pl) | 2014-07-03 | 2015-07-02 | Pocisk artyleryjski z pierścieniem uszczelniającym |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202014005442.8U DE202014005442U1 (de) | 2014-07-03 | 2014-07-03 | Artilleriegeschoss mit einem Dichtring |
| PCT/EP2015/065160 WO2016001388A1 (de) | 2014-07-03 | 2015-07-02 | Artilleriegeschoss mit einem dichtring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3164665A1 true EP3164665A1 (de) | 2017-05-10 |
| EP3164665B1 EP3164665B1 (de) | 2018-06-13 |
Family
ID=51419473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15736228.6A Active EP3164665B1 (de) | 2014-07-03 | 2015-07-02 | Artilleriegeschoss mit einem dichtring |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP3164665B1 (de) |
| DE (1) | DE202014005442U1 (de) |
| DK (1) | DK3164665T3 (de) |
| ES (1) | ES2683226T3 (de) |
| PL (1) | PL3164665T3 (de) |
| WO (1) | WO2016001388A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017110426A1 (de) * | 2017-05-12 | 2018-11-15 | Rheinmetall Waffe Munition Gmbh | Führungsbandintegraler Obturator am Artilleriegeschoss |
| CN115420151B (zh) * | 2022-09-29 | 2023-07-18 | 南京理工大学 | 一种应用于等径身管的闭气环 |
| FI20236009A1 (fi) * | 2023-09-08 | 2025-03-09 | Moviator Oy | Ammus, ammuksen tiivisterengas ja menetelmä ammuksen tiivistämiseksi |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR373960A (fr) * | 1906-04-03 | 1907-05-31 | Schneider & Cie | Ceintures obturatrices pour projectiles |
| GB191125850A (en) * | 1911-11-20 | 1912-11-20 | Henry Stanbridge | Improvements in and relating to the Centring of Projectiles. |
| FR774170A (fr) * | 1933-08-02 | 1934-12-03 | Perfectionnements apportés aux projectiles d'artillerie, notamment à ceux dits à auto-percussion | |
| US4242961A (en) * | 1978-10-23 | 1981-01-06 | Martin Marietta Corporation | Chevron grooved decoupling obturator |
| DE3033042C2 (de) * | 1980-09-03 | 1985-06-27 | L'Etat Français représenté par le Délégué Général pour l'Armement, Paris | Mittel zum Forcieren während der Schußentwicklung bei Munition für eine Glattrohrwaffe |
| US4384529A (en) * | 1981-02-02 | 1983-05-24 | The United States Of America As Represented By The Secretary Of The Army | Projectile seal |
| FR2702833B1 (fr) * | 1993-03-18 | 1995-05-12 | Giat Ind Sa | Dispositif d'étanchéité au gaz de propulsion pour munitions d'artillerie. |
| DE102010006221A1 (de) | 2010-01-28 | 2011-08-18 | Rheinmetall Waffe Munition GmbH, 29345 | Drallstabilisiertes Geschoss |
-
2014
- 2014-07-03 DE DE202014005442.8U patent/DE202014005442U1/de not_active Expired - Lifetime
-
2015
- 2015-07-02 ES ES15736228.6T patent/ES2683226T3/es active Active
- 2015-07-02 WO PCT/EP2015/065160 patent/WO2016001388A1/de not_active Ceased
- 2015-07-02 EP EP15736228.6A patent/EP3164665B1/de active Active
- 2015-07-02 PL PL15736228T patent/PL3164665T3/pl unknown
- 2015-07-02 DK DK15736228.6T patent/DK3164665T3/en active
Also Published As
| Publication number | Publication date |
|---|---|
| EP3164665B1 (de) | 2018-06-13 |
| ES2683226T3 (es) | 2018-09-25 |
| WO2016001388A1 (de) | 2016-01-07 |
| DK3164665T3 (en) | 2018-09-17 |
| PL3164665T3 (pl) | 2018-11-30 |
| DE202014005442U1 (de) | 2014-08-12 |
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