EP2828606B1 - 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
EP2828606B1
EP2828606B1 EP13709378.7A EP13709378A EP2828606B1 EP 2828606 B1 EP2828606 B1 EP 2828606B1 EP 13709378 A EP13709378 A EP 13709378A EP 2828606 B1 EP2828606 B1 EP 2828606B1
Authority
EP
European Patent Office
Prior art keywords
head part
practice projectile
projectile
sealing surface
practice
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.)
Not-in-force
Application number
EP13709378.7A
Other languages
German (de)
English (en)
Other versions
EP2828606A1 (fr
Inventor
Thomas Heitmann
Klaus-Dieter Freudenthal
Michael Vagedes
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 EP2828606A1 publication Critical patent/EP2828606A1/fr
Application granted granted Critical
Publication of EP2828606B1 publication Critical patent/EP2828606B1/fr
Not-in-force 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
    • F42B8/00—Practice or training ammunition
    • F42B8/12—Projectiles or missiles
    • 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
    • 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 a ladder-stabilized full-caliber training projectile which can be fired from a weapon barrel and 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 2010 034 333 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 training projectile, so that a separate shank may be omitted with attached fin assembly.
  • 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 in the region of the massive head part of the training projectile is arranged.
  • the head part has on its outer side a circumferential area designed as a sealing surface, the outer diameter of which is selected such that the head part itself forms the sealing system when the training projectile is fired in this area.
  • the deviation between the caliber of the weapon barrel from which the training bullet can be fired and the outside diameter of the head part in the region of the sealing surface should preferably be less than 0.2%.
  • the sealing effect of the groove seal is further increased if the sealing surface of the head part has at least three axially spaced-apart, annularly arranged grooves.
  • Fig. 1 and 2 is denoted by 1 ein leitwerkstabilInstitutes full-caliber practice bullet fired from a gun barrel, not shown.
  • a sleeve cover 2 is connected ( Fig. 1 ), which forms the compound of the training projectile 1 with a propellant charge containing, not shown, 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 based in the charged state of the practice projectile 1 preferably on the rear side via a guide ring, not shown, on the inner wall of the gun barrel. So that when firing the propellant charge gases can reach the outside 6 of the tail body, the guide ring has a plurality of distributed over the circumference arranged gas passage openings.
  • a sealing system 8 is arranged in the region of the solid head part 3 of the training projectile 1.
  • the head part 3 on its outer side 9 designed as a sealing surface circumferential area 10, which is bounded by the front end side of the tail body 5, and whose outer diameter is selected such that the head part 3 at the launch of the practice projectile 1 in this area even the sealing system 8 forms.
  • the massive headboard does not necessarily have to be a solid body. Rather, it can 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.

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

Claims (5)

  1. Projectile d'exercice (1) de plein calibre stabilisé par empennage pouvant 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 (8), 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) la partie de tête (3) possède sur son côté extérieur (9) une zone périphérique (10) réalisée sous la forme d'une surface d'étanchéité dont le diamètre extérieur est choisi de telle sorte que la partie de tête (3) forme elle-même le système d'étanchéité dans cette zone (10) lors du tir du projectile d'exercice (1).
  2. Projectile d'exercice selon la revendication 1, caractérisé en ce que l'écart entre le calibre du canon d'arme hors duquel peut être tiré le projectile d'exercice (1) et le diamètre extérieur de la partie de tête (3) dans la zone de la surface d'étanchéité (10) est inférieur à 0,2 %.
  3. Projectile d'exercice selon la revendication 1 ou 2, caractérisé en ce qu'au moins une rainure (11) disposée annulairement se trouve dans la surface d'étanchéité (10) de la partie de tête (3).
  4. Projectile d'exercice selon la revendication 3, caractérisé en ce qu'au moins trois rainures (11) disposées annulairement et espacées les unes des autres dans le sens axial se trouvent dans la surface d'étanchéité (10) de la partie de tête (3).
  5. Projectile d'exercice selon l'une des revendications 1 à 4, caractérisé en ce que la surface d'étanchéité (10) est disposée dans la zone du côté arrière de la partie de tête (3).
EP13709378.7A 2012-03-23 2013-03-05 Projectile d'exercice de gros calibre à empennage stabilisé Not-in-force EP2828606B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201210005745 DE102012005745A1 (de) 2012-03-23 2012-03-23 Leitwerkstabilisiertes Vollkaliber-Übungsgeschoss
PCT/EP2013/054426 WO2013139592A1 (fr) 2012-03-23 2013-03-05 Projectile d'exercice de gros calibre à empennage stabilisé

Publications (2)

Publication Number Publication Date
EP2828606A1 EP2828606A1 (fr) 2015-01-28
EP2828606B1 true EP2828606B1 (fr) 2016-05-18

Family

ID=47884287

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13709378.7A Not-in-force EP2828606B1 (fr) 2012-03-23 2013-03-05 Projectile d'exercice de gros calibre à empennage stabilisé

Country Status (3)

Country Link
EP (1) EP2828606B1 (fr)
DE (1) DE102012005745A1 (fr)
WO (1) WO2013139592A1 (fr)

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
WO2013139592A1 (fr) 2013-09-26
EP2828606A1 (fr) 2015-01-28
DE102012005745A1 (de) 2013-09-26

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