EP3164665B1 - Artilleriegeschoss mit einem dichtring - Google Patents

Artilleriegeschoss mit einem dichtring Download PDF

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Publication number
EP3164665B1
EP3164665B1 EP15736228.6A EP15736228A EP3164665B1 EP 3164665 B1 EP3164665 B1 EP 3164665B1 EP 15736228 A EP15736228 A EP 15736228A EP 3164665 B1 EP3164665 B1 EP 3164665B1
Authority
EP
European Patent Office
Prior art keywords
leg
groove
sealing
sealing ring
artillery shell
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.)
Active
Application number
EP15736228.6A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3164665A1 (de
Inventor
Stephan Graeser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rheinmetall Waffe Munition GmbH
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 PL15736228T priority Critical patent/PL3164665T3/pl
Publication of EP3164665A1 publication Critical patent/EP3164665A1/de
Application granted granted Critical
Publication of EP3164665B1 publication Critical patent/EP3164665B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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.
  • 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 Nutgrinschenkel 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 further spreads the resilient sealing leg, whereby the sealing effect is amplified by the pressure of the propellant gases.
  • the resilient sealing leg is chamfered at its free end under 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 to form a circumferential inlet opening for inflowing into the annular gap propellant gases shorter than the Nutschreibschenkel. This represents a simple design possibility to form an inlet opening for the annular gap.
  • a spin-stabilized artillery shell 1 has a projectile casing 10, which is covered 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 41, followed by a rear groove side 42 and a bow-side groove flank 43 connects.
  • 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 assisting effect which increases with higher pressure of propellant 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.
  • the resilient sealing leg 32 is chamfered at its free end with a widening of the annular gap 33, whereby the propellant gases can easily penetrate into the annular gap 33.
  • the resilient sealing leg 32 is formed to form a circumferential inlet opening 34 for flowing into the annular gap 33 propellant gases shorter than the Nutgrundschenkel 31st
  • the resilient sealing leg 32 Before attaching the artillery projectile 1, the resilient sealing leg 32 is further spread outwards than in the in Fig. 3 illustrated loading position.
  • the resilient sealing leg 32 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.
  • the propellant charge gases flow into the annular gap 33. Due to the build-up of gas pressure in the annular gap 33 of the resilient sealing leg 32 is pressed outward into the features of the gun barrel 2.
  • a backflow occurring at the beginning of the resilient sealing leg 32 supports the sealing effect due to the Bernoulli effect, since according to Bernoulli the back flow causes a contact pressure of the resilient sealing leg 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)
EP15736228.6A 2014-07-03 2015-07-02 Artilleriegeschoss mit einem dichtring Active EP3164665B1 (de)

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 EP3164665A1 (de) 2017-05-10
EP3164665B1 true 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 (pl)
DE (1) DE202014005442U1 (pl)
DK (1) DK3164665T3 (pl)
ES (1) ES2683226T3 (pl)
PL (1) PL3164665T3 (pl)
WO (1) WO2016001388A1 (pl)

Families Citing this family (3)

* 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
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
FI132056B1 (fi) * 2023-09-08 2026-05-11 Moviator Oy Ammus, ammuksen tiivisterengas ja menetelmä ammuksen tiivistämiseksi

Family Cites Families (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
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
WO2016001388A1 (de) 2016-01-07
EP3164665A1 (de) 2017-05-10
PL3164665T3 (pl) 2018-11-30
ES2683226T3 (es) 2018-09-25
DE202014005442U1 (de) 2014-08-12
DK3164665T3 (en) 2018-09-17

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