EP2828607B1 - Projectile d'exercice de gros calibre à empennage stabilisé - Google Patents

Projectile d'exercice de gros calibre à empennage stabilisé Download PDF

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Publication number
EP2828607B1
EP2828607B1 EP13709379.5A EP13709379A EP2828607B1 EP 2828607 B1 EP2828607 B1 EP 2828607B1 EP 13709379 A EP13709379 A EP 13709379A EP 2828607 B1 EP2828607 B1 EP 2828607B1
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EP
European Patent Office
Prior art keywords
head part
projectile
practice projectile
sealing ring
stabilizer body
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
EP13709379.5A
Other languages
German (de)
English (en)
Other versions
EP2828607A1 (fr
Inventor
Thomas Heitmann
Michael Vagedes
Mathias Lengnick
Christian Baumann
Elmar Ritzerfeld
Klaus-Dieter Freudenthal
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
Publication of EP2828607A1 publication Critical patent/EP2828607A1/fr
Application granted granted Critical
Publication of EP2828607B1 publication Critical patent/EP2828607B1/fr
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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
    • F42B10/02—Stabilising arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B8/00—Practice or training ammunition
    • F42B8/12—Projectiles or missiles

Definitions

  • the invention relates to a ladder-stabilized full-caliber practice projectile which can be fired from a weapon barrel and which has a solid head part and a tubular tail body adjoining the head part on the rear side, the training projectile being provided peripherally with a sealing system.
  • Such a full-caliber practice bullet is from the document DE 10 2010034 333 A1 known. It is a large caliber, for example, from a tank cannon with the caliber 120 mm shootable training projectile.
  • the projectile casing itself is designed as a tubular fin body in the aforementioned practice projectile, so that a separate shank may be omitted with attached fin assembly.
  • a sealing system arranged in the rear third of the tubular portion of the tail body. This consists essentially of a recessed into the outer surface of the tail body annular groove into which engages an existing plastic sealing ring.
  • a high internal pressure of the propellant charge gases occurs within the tubular tail body, which strongly acts on the side wall of the tubular tail body, in particular in the region between the sealing system and the head part. This can have an effect on the firing resistance, in particular when using a lighter body of a light metal.
  • the invention has for its object to provide a full-caliber practice bullet of the type mentioned, the firing resistance is ensured in a cost effective manner.
  • the invention is essentially based on the idea to dispense with a sealing system in the tubular portion of the tail body, so that the propellant gases formed at the launch of the training projectile also act on the outside of the side wall of the tubular tail body and thus acting on the outside of the tubular tail body pressure the counteracts the acting on the inside of the side wall of the training projectile internal pressure.
  • a sealing system is arranged in the region of the massive head part of the training projectile, wherein a sealing ring engages in an annular groove in the rear-side region of the head part or in a region of the tail body overlapping the head part.
  • the sealing system is a conical seal, wherein the annular groove of the sealing system has a greater width than the sealing ring, so that the sealing ring is axially displaceable towards the projectile tip when pressurized by the propellant gases.
  • the tubular tail body spaced apart, knob-shaped guide elements, via which the tail body is supported on the gun barrel, wherein the knob-shaped guide elements one around form the guide body around arranged guide ring, and wherein the propellant gases can flow between adjacent guide elements.
  • the sealing ring is preferably made of plastic.
  • Fig. 1 is denoted by 1 ein leitwerkstabilInstitutes full-caliber practice bullet fired from a gun barrel, not shown.
  • a sleeve cover 2 is connected, which forms the compound of the training projectile 1 with a propellant charge, not shown, containing the propellant charge.
  • the training projectile 1 comprises a solid head part 3 with a trailing-side arranged tracer body receptacle 4 and a tailpiece body 5 adjoining the head part 3 at the rear.
  • the tubular tail body 5 is designed in such a way that the propellant gases produced during the launch of the training projectile 1 also act on the outside 6 of the side wall 7 of the tubular tail body 5.
  • the tail body 5 is formed underkalibrig and is supported on spaced apart, knob-shaped guide elements 8 on the inner wall of the gun barrel, not shown.
  • the nub-shaped guide elements 8 are arranged around the tail body 5 such that they form a guide ring 9 ( Fig. 2 ), wherein the propellant gases can flow between adjacent guide elements 8.
  • a sealing system 10 is arranged in the region of the solid head part 3 of the training projectile 1.
  • an existing plastic sealing ring 11 engages in a circumferential groove-shaped recess (annular groove) 12 in the rear-side region of the head part 3, wherein for ease of installation of the sealing system, the annular groove 12 is bounded at the rear by the front end face of the tail body 5.
  • the sealing system 10 is a bevel seal, wherein the width B of the annular groove 12 is greater than the width b of the sealing ring 11, so that the sealing ring 11 is axially displaceable to the projectile tip at a pressurization by the propellant gases within the annular groove 12. Due to the conical configuration of the groove bottom of the annular groove 12, the axial displacement of the sealing ring 11 also causes a radial widening of the sealing ring 11, so that there is a permanent Lid réelle between the training projectile 1 and the inner wall of the gun barrel.
  • the sealing ring 11 can either be pressed or sprayed onto the head part 3 and then turned off to measure and / or drawn without twisting directly on the head part 3.
  • the invention is not limited to the embodiment described above.
  • the massive headboard does not necessarily have to be a solid body. Rather, it may also be a hollow body, if the wall thickness and / or the material (steel, etc.) of the head part are chosen such that the propellant charge gases cause no or no significant deformation of the head part when shooting in the barrel.
  • the annular groove of the sealing system need not necessarily be arranged on the head part itself, but it can also be provided that in a training projectile in which the tail body engages over the front side of the head part (see also Fig. 1 ), the annular groove is arranged in this wall region of the tail body.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Toys (AREA)

Claims (4)

  1. Projectile d'exercice (1) de plein calibré stabilisé par empennage prouvant être tiré hors d'un canon d'arme, comprenant une partie de tête (3) massive et un corps d'empennage (5) de forme tubulaire rattaché à la partie de tête (3) du côté arrière, le projectile d'exercice (1) étant pourvu sur le pourtour d'un système d'étanchéité (10), caractérisé par les caractéristiques suivantes :
    a) le corps d'empennage (5) de forme tubulaire est configuré de telle sorte que les gaz de charge propulsive qui sont produits lors du tir du projectile d'exercice (1) agissent également sur le côté extérieur (6) de la paroi latérale (7) du corps d'empennage (5) de forme tubulaire, et
    b) le système d'étanchéité (10) est disposé dans la zone de la partie de tête (3) du projectile d'exercice (1), une bague d'étanchéité (11) venant en prise dans une rainure annulaire (12) dans la zone du côté arrière de la partie de tête (3) ou dans une zone du corps d'empennage (5) qui recouvre la partie de tête (3).
  2. Projectile d'exercice selon la revendication 1, caractérisé en ce que le système d'étanchéité (10) est une garniture d'étanchéité conique, la rainure annulaire (12) présentant une largeur supérieure à celle de la bague d'étanchéité (11), de sorte qu'en présence d'une pression exercée par les gaz de la charge propulsive, la bague d'étanchéité (11) peut coulisser à l'intérieur de la rainure annulaire (12) dans le sens axial en direction de la pointe du projectile.
  3. Projectile d'exercice selon la revendication 1 ou 2, caractérisé en ce que le corps d'empennage (5) de forme tubulaire possède des éléments de guidage (8) espacés mutuellement configurés en forme de boutons qui forment un anneau de guidage (9) disposé autour du corps d'empennage (5).
  4. Projectile d'exercice selon l'une des revendications 1 à 3, caractérisé en ce que la bague d'étanchéité (11) est constituée de matière plastique.
EP13709379.5A 2012-03-23 2013-03-05 Projectile d'exercice de gros calibre à empennage stabilisé Active EP2828607B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201210005743 DE102012005743A1 (de) 2012-03-23 2012-03-23 Leitwerkstabilisiertes Vollkaliber-Übungsgeschoss
PCT/EP2013/054430 WO2013139593A1 (fr) 2012-03-23 2013-03-05 Projectile d'exercice de gros calibre à empennage stabilisé

Publications (2)

Publication Number Publication Date
EP2828607A1 EP2828607A1 (fr) 2015-01-28
EP2828607B1 true EP2828607B1 (fr) 2016-05-18

Family

ID=47884288

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13709379.5A Active EP2828607B1 (fr) 2012-03-23 2013-03-05 Projectile d'exercice de gros calibre à empennage stabilisé

Country Status (3)

Country Link
EP (1) EP2828607B1 (fr)
DE (1) DE102012005743A1 (fr)
WO (1) WO2013139593A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019126585A1 (de) * 2019-10-02 2021-04-08 Rwm Schweiz Ag Geschoss mit verkürzter Reichweite

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE626652A (fr) * 1961-06-28
GB1141534A (en) * 1965-06-14 1969-01-29 Director General Of Foersvaret Projectile with a stabilizing element at its rear end
DE102010003433B4 (de) 2010-03-30 2011-11-17 Institut für Sicherheitstechnik/Schiffssicherhheit e.V. Verfahren und Vorrichtungen zur Rettung von Personen im Wasser
DE102010034333B4 (de) 2010-07-06 2014-12-11 Rheinmetall Waffe Munition Gmbh Vollkaliber-Übungsmunition

Also Published As

Publication number Publication date
DE102012005743A1 (de) 2013-09-26
EP2828607A1 (fr) 2015-01-28
WO2013139593A1 (fr) 2013-09-26

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