WO2013010775A1 - Dispositif de transfert de gaz pour le canon d'un fusil - Google Patents

Dispositif de transfert de gaz pour le canon d'un fusil Download PDF

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Publication number
WO2013010775A1
WO2013010775A1 PCT/EP2012/062679 EP2012062679W WO2013010775A1 WO 2013010775 A1 WO2013010775 A1 WO 2013010775A1 EP 2012062679 W EP2012062679 W EP 2012062679W WO 2013010775 A1 WO2013010775 A1 WO 2013010775A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas
barrel
piston
housing
cavity
Prior art date
Application number
PCT/EP2012/062679
Other languages
German (de)
English (en)
Inventor
Götz COENEN
Original Assignee
Schmeisser 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 Schmeisser Gmbh filed Critical Schmeisser Gmbh
Publication of WO2013010775A1 publication Critical patent/WO2013010775A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A5/00—Mechanisms or systems operated by propellant charge energy for automatically opening the lock
    • F41A5/18—Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated
    • F41A5/26—Arrangements or systems for bleeding the gas from the barrel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
    • F41A21/26—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means specially adapted for recoil reinforcement, e.g. for training purposes

Definitions

  • the present invention relates to a gas take-off assembly for a barrel, in particular a machine gun barrel, a weapon, wherein the gas take-off assembly comprises a housing having therein a gas cylinder and a displaceably mounted in the gas cylinder piston, the gas cylinder via a connection with a
  • Gas outlet is in communication, wherein the gas piston is moved by the exiting the barrel gas to reload the weapon.
  • a gas pressure loader is called self-loading firearms, during which part of the high-tension gases of the propellant charge is removed from the barrel during the shot and acts on a self-loading mechanism.
  • gas is removed after delivery of the shot through a hole in the barrel wall of the gas take-off assembly.
  • the shutter of the weapon is unlocked and opened, the empty cartridge case is ejected.
  • the closure is closed by the closing spring, a new cartridge is fed into the chamber.
  • the gas flowing into the gas take-off arrangement is polluted, especially in the case of illuminated ammunition, so that deposits of oil-like deposits in the piston-cylinder system of the gas take-off arrangement are deposited, as a result of which the piston can no longer slide so smoothly in the cylinder and possibly jam, as a result of which the weapon is no longer functional.
  • Actuating force is jerky due to the high gas pressure, so that strong buffer springs are needed to cushion the strong acceleration of the piston and the rod driven by the piston rod. Especially with sustained fire occur in gas pressure boosters strong vibrations, causing the weapon is restless, which the target accuracy negative
  • the object of the present invention is to provide a gas take-off arrangement in which the piston-cylinder system does not so quickly or only slightly contaminate.
  • Gas pressure superchargers small dead volume between the engine intake opening and the piston-cylinder system of the gas sampling arrangement is increased, in which a cavity of sufficient size between the
  • the device according to the invention allows the particles located in the gas to deposit on the inner wall delimiting the cavity before they enter the piston-cylinder system. It goes without saying that not all the particles deposit on the inner walls of the cavity so that particles still enter the piston-cylinder system. In experiments, however, it has been found that a large part of the particles no longer enters the piston-cylinder system, so that the functionality of the weapon is guaranteed for a longer period of time than with gas pressure chargers with conventional gas take-off arrangements.
  • the cavity has at least as large a volume as the volume of the space through which in the starting position
  • the acceleration of the piston and derived therefrom and the repeating motion is particularly smoothly controlled, so that jerky movements within the weapon avoided or at least reduced.
  • the weapon can be well controlled in the shot.
  • the wear of the weapon is reduced, so that the gas pressure system under normal
  • Manufacturing methods can withstand far more than 15,000 rounds.
  • Relaxation phase ie when entering and after entering the cavity, at least twice be redirected in your direction. It is particularly advantageous if the direction change angle of each further deflection is at least as great as that of the previous deflection. This will be vibration indicators during the
  • Piston sleeve is formed, which is arranged in or on the housing. This can advantageously a short length of
  • the cavity may be formed by the housing and the piston liner, that is, the walls of the cavity through the housing and the piston liner
  • Piston sleeve are formed. If a piston liner is used, but it is of course also possible that the cavity is arranged alone in the housing or in the piston liner.
  • the cavity may be formed by the walls of the barrel and the housing or by the walls of the barrel, the housing and the piston liner.
  • the individual components corresponding recesses on its surface, which correspond to each other and form the cavity.
  • Cavity between the gas cylinder and the barrel along a Part of the barrel extends, in particular over 2 to 6 cm, preferably over 2.5 to 5 cm extends. Depending on the required
  • the axial length of the cavity can be adjusted accordingly, ie. also be longer than the aforementioned length measures.
  • the cavity may extend at least partially or completely around the gas cylinder or the piston liner and / or the barrel, in particular coaxially around the gas cylinder and / or the barrel, around. In this way, the entry point into the cavity and the exit point from the cavity can be placed as far away from each other as possible, so that as few particles as possible enter the gas cylinder and there
  • the piston may advantageously have at least one longitudinal groove which extends to the free end of the piston. This allows the
  • Entry point of the gas into the gas cylinder can be easily adapted to the conditions of different weapons. Also, this advantageously a longest possible actuation path is achieved under gas pressure, without extending the assembly, in particular to the rear.
  • the cavity and the gas cylinder via at least one channel to communicate with each other, in particular at least one channel in the region of the longitudinal groove of the piston in the
  • Cylinder wall of the gas cylinder ends.
  • the piston may have at least one radially encircling groove, whereby even in the case of a soiled one
  • the piston can still slide safely in the cylinder, since the dirt can dodge into the grooves.
  • the housing rests against a projection or stop of the barrel and by means of a locking means, in particular a transverse pin which rests in a recess of the barrel, is held relative to the barrel in position.
  • the locking agent At the same time, it can hold the piston sleeve, the housing and the barrel in position relative to each other. This is the individual
  • the housing can surround the barrel at least partially coaxially. So it is possible that the housing has an axial bore or
  • Fig. 1 cross-sectional view through a first possible
  • Fig. 2 cross-sectional view through a second possible
  • Fig. 3 piston with molded thereon and the linkage
  • Fig. 4 item view.
  • FIG. 1 shows a cross-sectional view through a first possible embodiment, wherein the barrel 1, the housing 2, the gas piston sleeve 3 and the piston 4 of the gas take-off assembly are shown.
  • the projectile P has just passed the gas outlet opening la of the barrel, so that the gas under high pressure through the gas outlet opening la and the window-like opening 2b of the housing 2 enters the cavity H and there relaxes and located in the gas
  • the flowing gas is represented by the small arrows.
  • the cavity H is through recesses 2g, 3h of the housing 2 and the
  • Gas piston sleeve 3 is formed and extends along the barrel. Depending on the depth and longitudinal extent of the recesses 2g, 3h, the volume of the cavity H can be adapted to the required conditions.
  • the cavity H coaxially surrounds the gas cylinder 3d and is in communication therewith via the inlet channels 3c, which may also be distributed around the circumference.
  • the piston 4 has longitudinal grooves 4a at its the linkage G.
  • the barrel 1 has a radial projection 1b, which may also be formed by a circumferential collar on which the housing 2 rests with its end 2a or is pressed. This is ensured by the locking means 5, which is inserted transversely to the barrel 1 and secured against loss.
  • a radial projection 1b which may also be formed by a circumferential collar on which the housing 2 rests with its end 2a or is pressed. This is ensured by the locking means 5, which is inserted transversely to the barrel 1 and secured against loss.
  • Arretianssstoff 5 a bolt which in a recess ld of the barrel, a recess 2e of the housing and a recess 3e of
  • Gas piston bushing 3 engages and thereby holds the parts positively in position.
  • 2 shows a cross-sectional view through a second possible embodiment, wherein the cavity H is formed in this embodiment by the housing 2 and the barrel 1. This points to that
  • FIG. 3 shows the piston 4 with the linkage G formed integrally thereon in the gas piston bushing 3.
  • FIG. 4 shows the individual parts in a perspective view.
  • the housing 1 has a through hole lz with which the housing is pushed onto the barrel 1 as far as the stop lb.
  • the gas piston sleeve 3 is inserted, which forms the gas cylinder 3d, in which the piston 4 is slidably mounted.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

L'invention concerne un dispositif de transfert de gaz pour un canon (1), notamment un canon de mitraillette d'une arme. Le dispositif de transfert de gaz comporte un boîtier (2) contenant un cylindre à gaz (3d) et une crosse (4) logée coulissante dans le cylindre à gaz (3d). Le cylindre à gaz (3d) se trouve en communication avec une ouverture de sortie de gaz (1a) du canon (1) au moyen d'une conduite de liaison. La crosse à gaz (4) est déplacée par le gaz s'échappant du canon (1) pour un nouveau chargement de l'arme. L'invention est caractérisée en ce que le cylindre à gaz (3d) et l'ouverture de sortie de gaz (1a) renferment un espace creux (H) dans lequel le gaz s'échappant du canon (1) se détend avant de rejoindre le cylindre à gaz (3d) par un canal (3c; 2k, 3k)
PCT/EP2012/062679 2011-07-15 2012-06-29 Dispositif de transfert de gaz pour le canon d'un fusil WO2013010775A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011107751.4 2011-07-15
DE201110107751 DE102011107751A1 (de) 2011-07-15 2011-07-15 Gasabnahmeanordnung für einen Lauf einer Waffe

Publications (1)

Publication Number Publication Date
WO2013010775A1 true WO2013010775A1 (fr) 2013-01-24

Family

ID=46465211

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/062679 WO2013010775A1 (fr) 2011-07-15 2012-06-29 Dispositif de transfert de gaz pour le canon d'un fusil

Country Status (2)

Country Link
DE (1) DE102011107751A1 (fr)
WO (1) WO2013010775A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105157473A (zh) * 2015-08-18 2015-12-16 西南大学 一种可改变出膛力度的防暴枪

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202017106479U1 (de) 2017-10-26 2019-01-29 L&O Hunting Group GmbH Momentfreier Gasantrieb für eine Feuerwaffe
DE102017125056A1 (de) 2017-10-26 2019-05-02 L&O Hunting Group GmbH Momentfreier Gasantrieb für eine Feuerwaffe

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB252429A (en) * 1925-02-20 1926-05-20 Vickers Ltd Improvements in or relating to machine guns and automatic small arms
FR779957A (fr) * 1934-01-05 1935-04-17 Perfectionnement aux armes à feu actionnées automatiquement par la pression des gaz de la poudre
DE726118C (de) * 1939-08-20 1942-10-07 Knorr Bremse Ag Gasabzapfduese fuer Gasdrucklader
US2865256A (en) * 1954-10-13 1958-12-23 Weapons Inc Compensating device for firearms
US7418898B1 (en) * 2004-02-11 2008-09-02 Desomma Frank M16 modified with pushrod operating system and conversion method
EP2195598A2 (fr) 2007-08-29 2010-06-16 Ra Brands, L.L.C. Système au gaz pour armes à feu

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB252429A (en) * 1925-02-20 1926-05-20 Vickers Ltd Improvements in or relating to machine guns and automatic small arms
FR779957A (fr) * 1934-01-05 1935-04-17 Perfectionnement aux armes à feu actionnées automatiquement par la pression des gaz de la poudre
DE726118C (de) * 1939-08-20 1942-10-07 Knorr Bremse Ag Gasabzapfduese fuer Gasdrucklader
US2865256A (en) * 1954-10-13 1958-12-23 Weapons Inc Compensating device for firearms
US7418898B1 (en) * 2004-02-11 2008-09-02 Desomma Frank M16 modified with pushrod operating system and conversion method
EP2195598A2 (fr) 2007-08-29 2010-06-16 Ra Brands, L.L.C. Système au gaz pour armes à feu

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105157473A (zh) * 2015-08-18 2015-12-16 西南大学 一种可改变出膛力度的防暴枪

Also Published As

Publication number Publication date
DE102011107751A1 (de) 2013-01-17

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