WO2016001388A1 - Projectile d'artillerie avec bague d'étanchéité - Google Patents

Projectile d'artillerie avec bague d'étanchéité Download PDF

Info

Publication number
WO2016001388A1
WO2016001388A1 PCT/EP2015/065160 EP2015065160W WO2016001388A1 WO 2016001388 A1 WO2016001388 A1 WO 2016001388A1 EP 2015065160 W EP2015065160 W EP 2015065160W WO 2016001388 A1 WO2016001388 A1 WO 2016001388A1
Authority
WO
WIPO (PCT)
Prior art keywords
leg
sealing
sealing ring
projectile
groove
Prior art date
Application number
PCT/EP2015/065160
Other languages
German (de)
English (en)
Inventor
Stephan Graeser
Original Assignee
Rheinmetall Waffe Munition Gmbh
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 Rheinmetall Waffe Munition Gmbh filed Critical Rheinmetall Waffe Munition Gmbh
Priority to ES15736228.6T priority Critical patent/ES2683226T3/es
Priority to EP15736228.6A priority patent/EP3164665B1/fr
Priority to DK15736228.6T priority patent/DK3164665T3/en
Priority to PL15736228T priority patent/PL3164665T3/pl
Publication of WO2016001388A1 publication Critical patent/WO2016001388A1/fr

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.

Abstract

L'invention concerne un projectile d'artillerie (1) comportant une bague d'étanchéité (30) qui empêche un écoulement des gaz propulseurs lors d'une opération de tir. La bague d'étanchéité (30) entoure à cet effet l'étui du projectile (10) et comporte un profil d'étanchéité périphérique qui est maintenu dans une rainure extérieure (40) de l'étui du projectile (10). Le profil d'étanchéité comporte une forme en V ouvert vers l'arrière, une première branche étant disposée dans la rainure extérieure (40) et une seconde branche étant réalisée sous la forme d'une branche de joint à ressort (32) dont l'extrémité libre est résiliente radialement vers l'extérieur, mais peut être comprimée tant qu'elle peut être logée entièrement par la rainure extérieure (40) et qu'elle n'en dépasse pas.
PCT/EP2015/065160 2014-07-03 2015-07-02 Projectile d'artillerie avec bague d'étanchéité WO2016001388A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES15736228.6T ES2683226T3 (es) 2014-07-03 2015-07-02 Proyectil de artillería con un anillo de obturación
EP15736228.6A EP3164665B1 (fr) 2014-07-03 2015-07-02 Projectile d'artillerie avec bague d'étanchéité
DK15736228.6T DK3164665T3 (en) 2014-07-03 2015-07-02 Artillery projectile with a sealing ring
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
DE202014005442.8 2014-07-03

Publications (1)

Publication Number Publication Date
WO2016001388A1 true WO2016001388A1 (fr) 2016-01-07

Family

ID=51419473

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/065160 WO2016001388A1 (fr) 2014-07-03 2015-07-02 Projectile d'artillerie avec bague d'étanchéité

Country Status (6)

Country Link
EP (1) EP3164665B1 (fr)
DE (1) DE202014005442U1 (fr)
DK (1) DK3164665T3 (fr)
ES (1) ES2683226T3 (fr)
PL (1) PL3164665T3 (fr)
WO (1) WO2016001388A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115420151A (zh) * 2022-09-29 2022-12-02 南京理工大学 一种应用于等径身管的闭气环

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017110426A1 (de) 2017-05-12 2018-11-15 Rheinmetall Waffe Munition Gmbh Führungsbandintegraler Obturator am Artilleriegeschoss

Citations (8)

* Cited by examiner, † Cited by third party
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
EP0046888A1 (fr) * 1980-09-03 1982-03-10 Rheinmetall GmbH Ceinture d'étanchéité pour munition de canons à âme lisse
US4384529A (en) * 1981-02-02 1983-05-24 The United States Of America As Represented By The Secretary Of The Army Projectile seal
WO1994021981A1 (fr) * 1993-03-18 1994-09-29 Giat Industries Dispositif d'etancheite aux gaz de propulsion pour munitions d'artillerie
DE102010006221A1 (de) * 2010-01-28 2011-08-18 Rheinmetall Waffe Munition GmbH, 29345 Drallstabilisiertes Geschoss

Patent Citations (8)

* Cited by examiner, † Cited by third party
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
EP0046888A1 (fr) * 1980-09-03 1982-03-10 Rheinmetall GmbH Ceinture d'étanchéité pour munition de canons à âme lisse
US4384529A (en) * 1981-02-02 1983-05-24 The United States Of America As Represented By The Secretary Of The Army Projectile seal
WO1994021981A1 (fr) * 1993-03-18 1994-09-29 Giat Industries Dispositif d'etancheite aux gaz de propulsion pour munitions d'artillerie
DE102010006221A1 (de) * 2010-01-28 2011-08-18 Rheinmetall Waffe Munition GmbH, 29345 Drallstabilisiertes Geschoss

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115420151A (zh) * 2022-09-29 2022-12-02 南京理工大学 一种应用于等径身管的闭气环
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

Also Published As

Publication number Publication date
ES2683226T3 (es) 2018-09-25
DK3164665T3 (en) 2018-09-17
EP3164665B1 (fr) 2018-06-13
PL3164665T3 (pl) 2018-11-30
EP3164665A1 (fr) 2017-05-10
DE202014005442U1 (de) 2014-08-12

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