EP0158705A2 - Gas jet nozzle tube for breech operation and ammunition transport of an automatic barrel weapon - Google Patents

Gas jet nozzle tube for breech operation and ammunition transport of an automatic barrel weapon Download PDF

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Publication number
EP0158705A2
EP0158705A2 EP84109999A EP84109999A EP0158705A2 EP 0158705 A2 EP0158705 A2 EP 0158705A2 EP 84109999 A EP84109999 A EP 84109999A EP 84109999 A EP84109999 A EP 84109999A EP 0158705 A2 EP0158705 A2 EP 0158705A2
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EP
European Patent Office
Prior art keywords
barrel
bore
nozzle
boring
gas jet
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.)
Granted
Application number
EP84109999A
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German (de)
French (fr)
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EP0158705B1 (en
EP0158705A3 (en
Inventor
Günter Frye
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Rheinmetall Industrie AG
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Rheinmetall GmbH
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Publication date
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Publication of EP0158705A2 publication Critical patent/EP0158705A2/en
Publication of EP0158705A3 publication Critical patent/EP0158705A3/en
Application granted granted Critical
Publication of EP0158705B1 publication Critical patent/EP0158705B1/en
Expired legal-status Critical Current

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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

Definitions

  • the invention relates to a gas jet tube nozzle for a breech drive and ammunition drive for an automatic tube weapon according to the preamble of patent claim 1.
  • Known tube nozzles of this type contain a continuous inner bore which opens outside the tube nozzle into a bore arranged obliquely in the weapon barrel jacket or in a separate or integrated tube ring of the weapon barrel.
  • Plugs to be sealed or shrunk-on bushings are used to close the inclined bore to deflect the gas pressure.
  • permanent damage to the deflection point can result from gas erosion such that adequate sealing by the plug or the pipe ring is no longer guaranteed and malfunctions of the pipe weapon cannot be avoided.
  • a necessary repair cannot be carried out quickly due to the parts that can only be replaced with great effort.
  • the object of the invention is ea to design the gas jet tube nozzle mentioned in the preamble of claim 1 such that the disadvantages mentioned are avoided and an easily exchangeable deflection and sealing device of the gas jet to be discharged from the oblique gas extraction bore is created.
  • the gas jet pipe nozzle is particularly advantageous in that the gas jet deflection takes place inside the pipe nozzle, and any erosion damage that occurs within the pipe nozzle can be quickly remedied by simply replacing the pipe nozzle. Due to the oblique arrangement of the gas extraction bore and optimal coordination of the diameter of the connecting line of the tubular nozzle with respect to the gas extraction bore, the tubular nozzle is automatically sealed off from the outside, so that additional means for sealing are unnecessary. By attaching self-centering securing means on the one hand and on the other hand resiliently latching onto the weapon barrel, the tubular nozzle is further advantageously secured in its installed position against rotation and against falling out.
  • a gun barrel 10 which has a tubular ring integrated with the barrel jacket on its circumference.
  • a tube nozzle 3 is arranged for deflecting a gas branched off from the interior 29 of the gun barrel 10 via an oblique gas extraction bore 2.
  • the tubular nozzle is also cylindrical and lies against the wall of the bore 8 with only slight play, the tubular nozzle being able to be pushed into the bore up to a shoulder 22.
  • the gas extraction bore 2 introduced into the tubular ring 9 from the outside is divided through the bore 8 into an outer 15 and an inner bore section 16.
  • the tubular nozzle 3 contains, in the region of its cylindrical jacket 5, an inclined connecting line 4- opposite the outlet opening 30 of the lower bore section 16.
  • the connecting line 4 is arranged in the length range between the inlet opening 18 on the jacket 5 and the interface 20 with an inner bore 1 running parallel to the axis 17 of the tubular nozzle 3, the connecting line 4 being preferably at an angle of inclination ⁇ ⁇ 90 ° with respect to the inner bore 1 ⁇ ⁇ 60 °, is arranged obliquely and opposite the diameter d 3 of the inner bore 1 has a larger diameter d 1 .
  • the inner bore 1 begins at the cut surface 20 and has its outlet at the end face 21 of the neck 22.
  • the inner bore 1 is arranged below the axis 17, which advantageously results in a relatively large cross section remaining between the connecting line 4 and the bore section 15.
  • the diameter d 1 of the connecting line 4 is larger than the diameter d 2 of the gas extraction bore 2 such that taking into account all manufacturing-related tolerances of the bore 2, 4 and fixation-related displacements of the tubular nozzle 3, the outlet cross section of the extraction bore 2 is covered by the inlet cross section of the connecting line 4 .
  • the gas extraction bore 2 is arranged obliquely in the tubular ring 9 in such a way that the cross section 13 of the outer bore section 15 adjoining the jacket 5 of the tubular nozzle 3 does not overlap the cross section 14 of the inner bore section 16 which opens into the connecting line 4 and does not overlap perpendicular to the axis 17 of the bore 8.
  • This arrangement makes it possible to seal the outer bore section 15 through the tubular nozzle 3 without the use of additional sealing means and screw connections.
  • This seal is reinforced by the dynamic pressure occurring at the interface 20, which is caused on the one hand by the deflection of the gas flow in the direction 19 (FIG. 2) and on the other hand by the reduced diameter d 3 of the inner bore 1 compared to the diameter d 1 of the connecting line 4
  • the projection 22 arranged on the end face 21 of the tubular nozzle 3 is cylindrical and, on the long side, designed with multiple beveled segments, the lower segment surface 23 of which, as securing means 6, has a circular curvature 24 which is adapted to the outer diameter of the weapon barrel 10.
  • the attachment 22 contains a circular circumferential groove 25 which, in the lower region 26 adjacent to the weapon barrel 10, is designed to be horizontal and straight, deviating from the circular shape.
  • a round spring wire is designed as a security element 11 such that it can elastically spring back in the region 26 and can snap into the groove 12 of the weapon barrel 10.
  • the groove 12 of the weapon barrel 10 is provided on the side facing away from the drill ring 9 with a circumferential bevel 27.
  • FIG. 1 can also be arranged in an advantageous but not shown manner several times on the circumference of the weapon barrel 10.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles (AREA)

Abstract

1. Gas jet pipe nozzle (3) for a breech drive and ammunition transport system of an automatic barrel weapon and situated inside a cylindrical boring 8 parallel to the barrel axis (28) of a barrel ring (9) and containing an internal boring (1) which extends in an axially parallel direction and which is connected to a gas extraction boring (2) provided obliquely in the barrel (10) from the exterior and extending into the interior space (29) of the barrel characterized by the following features : a) the pipe nozzle (3) is provided, in the zone of the cylindrical casing (5), with a connecting pipe (4) which extends obliquely from the gas extraction boring (2) to the inner boring (1) while the interface (20) formed from the inlet aperture (18) to the inner boring (1) has a greater diameter (d1 ) than the diameter (d3 ) of the inner boring (1), the interface (20) also being the deviating point for the gaz jet being capable of deviation, at an angle of inclination (alpha) of below 90 degrees, in accordance with the inclination of the connecting pipe (4) with respect to the inner boring (1) ; b) the nozzle (3) has securing means (6) serving to fix the position of the connecting pipe (4) in the peripheral direction (7) ; c) the nozzle (3) also bears resilient safety element (11) which, in the safe position, is engaged in a groove (12) of the barrel (10) of the weapon and prevents the nozzle (3) from falling out of the boring (8).

Description

Die Erfindung betrifft eine Gasstrahl-Rohrdüse für einen Verschlußantrieb und Munitionsantrieb einer automatischen Rohrwaffe nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a gas jet tube nozzle for a breech drive and ammunition drive for an automatic tube weapon according to the preamble of patent claim 1.

Derartig bekannte Rohrdüsen enthalten eine durchgehende Innenbohrung, die außerhalb der Rohrdüse in einer schräg im Waffenrohrmantel oder in einem separaten oder integrierten Rohrring des Waffenrohres angeordneten Bohrung mündet. Als Verschluß der schrägen Bohrung werden zur Umlenkung des Gasdruckes abzudichtende Stopfen oder aufgeschrumpfte Buchsen eingesetzt. Beim Durchströmen des Gases können unter Dauerbelastung an der Umlenkstelle derartige Schäden durch Gaserosion auftreten, daß eine ausreichende Abdichtung durch den Stopfen oder den Rohrring nicht mehr gewährleistet ist und Funktionsstörungen der Rohrwaffe nicht zu vermeiden sind. Eine notwendige Instandsetzung läßt sich dabei aufgrund der nur unter großem Aufwand auswechselbaren Teile nicht schnell durchführen.Known tube nozzles of this type contain a continuous inner bore which opens outside the tube nozzle into a bore arranged obliquely in the weapon barrel jacket or in a separate or integrated tube ring of the weapon barrel. Plugs to be sealed or shrunk-on bushings are used to close the inclined bore to deflect the gas pressure. When flowing through the gas, permanent damage to the deflection point can result from gas erosion such that adequate sealing by the plug or the pipe ring is no longer guaranteed and malfunctions of the pipe weapon cannot be avoided. A necessary repair cannot be carried out quickly due to the parts that can only be replaced with great effort.

Aufgabe der Erfindung ist ea, die im Oberbegriff des Patentanspruchs 1 genannte Gasstrahl-Rohrdüse derartig auszubilden, daß die genannten Nachteile vermieden werden und eine leicht auswechselbare Umlenk- und Abdichtvorrichtung des aus der schrägen Gasentnahmebohrung abzuführenden Gasstrahles geschaffen wird.The object of the invention is ea to design the gas jet tube nozzle mentioned in the preamble of claim 1 such that the disadvantages mentioned are avoided and an easily exchangeable deflection and sealing device of the gas jet to be discharged from the oblique gas extraction bore is created.

Gelöst wird diese Aufgabe durch die im Patentanspruch 1 angegebene Erfindung. Vorteilhafte Ausgestaltungen gehen aus den Unteransprüchen hervor.This object is achieved by the invention specified in claim 1. Advantageous configurations emerge from the subclaims.

Die Gasstrahl-Rohrdüse zeichnet sich erfindungsgemäß besonders vorteilhaft dadurch aus, daß die Gasstrahlumlenkung innerhalb der Rohrdüse erfolgt, wobei evtl. auftretende Erosionsschäden innerhalb der Rohrdüse durch einen einfachen Austausch der Rohrdüse schnell behoben werden können. Durch die schräge Anordnung der Gasentnahmebohrung'und optimale Abstimmung des Durchmessers der Verbindungsleitung der Rohrdüse gegenüber der Gasentnahmebohrung wird die Rohrdüse nach außen selbsttätig abgedichtet, so daß weitere Mittel zur Abdichtung entbehrlich sind. Durch die Anbringung einerseits selbst zentrierender und andererseits auf dem Waffenrohr federnd einrastender Sicherungsmittel ist die Rohrdüse weiter vorteilhaft in ihrer Einbaulage gegen Verdrehung und gegen Herausfallen gesichert.According to the invention, the gas jet pipe nozzle is particularly advantageous in that the gas jet deflection takes place inside the pipe nozzle, and any erosion damage that occurs within the pipe nozzle can be quickly remedied by simply replacing the pipe nozzle. Due to the oblique arrangement of the gas extraction bore and optimal coordination of the diameter of the connecting line of the tubular nozzle with respect to the gas extraction bore, the tubular nozzle is automatically sealed off from the outside, so that additional means for sealing are unnecessary. By attaching self-centering securing means on the one hand and on the other hand resiliently latching onto the weapon barrel, the tubular nozzle is further advantageously secured in its installed position against rotation and against falling out.

Ein bevorzugtes Ausführungsbeispiel der Erfindung wird anhand der dargestellten Figuren im einzelnen beschrieben.A preferred embodiment of the invention is described in detail with reference to the figures shown.

Es zeigt:

  • Fig. 1 in einer teilweise geschnittenen Seitenansicht die Anordnung der Gasstrahl-Rohrdüse in einer Bohrung des Waffenrohrringes;
  • Fig. 2 in einer teilweise geschnittenen Seitenansicht die Gasstrahl-Rohrdüse;
  • Fig. 3 einen Querschnitt entlang der Linie III - III in Fig. 2;
  • Fig. 4 einen Querschnitt entlang der Linie IV - IV in Fig. l.
It shows:
  • Figure 1 is a partially sectioned side view of the arrangement of the gas jet pipe nozzle in a bore of the gun barrel ring.
  • Figure 2 is a partially sectioned side view of the gas jet pipe nozzle.
  • 3 shows a cross section along the line III - III in Fig. 2.
  • 4 shows a cross section along the line IV-IV in FIG.

In Fig. 1 ist ein Waffenrohr 10 dargestellt, das auf seinem Umfang einen mit dem Rohrmantel integrierten Rohrring aufweist. Innerhalb einer im Rohrring 9 einseitig offenen und parallel zur Waffenrohrachse 28 verlaufenden zylindrischen Bohrung 8 ist eine Rohrdüse 3 zur Umlenkung eines über eine schräge Gasentnahmebohrung 2 aus dem Innenraum 29 des Waffenrohres 10 abgezweigten Gases angeordnet. Die Rohrdüse ist ebenfalls zylindrisch ausgeführt und liegt mit nur geringem Spiel an der Wandung der Bohrung 8 an, wobei die Rohrdüse bis zu einem Ansatz 22 in die Bohrung hineingeschoben werden kann. Die von außen in den Rohrring 9 eingebrachte Gasentnahmebohrung 2 ist durch die Bohrung 8 in einen äußeren 15 und einen innerren Bohrungsabschnitt 16 aufgeteilt.In Fig. 1, a gun barrel 10 is shown, which has a tubular ring integrated with the barrel jacket on its circumference. Within a tubular bore 8 which is open on one side in the tubular ring 9 and runs parallel to the weapon barrel axis 28, a tube nozzle 3 is arranged for deflecting a gas branched off from the interior 29 of the gun barrel 10 via an oblique gas extraction bore 2. The tubular nozzle is also cylindrical and lies against the wall of the bore 8 with only slight play, the tubular nozzle being able to be pushed into the bore up to a shoulder 22. The gas extraction bore 2 introduced into the tubular ring 9 from the outside is divided through the bore 8 into an outer 15 and an inner bore section 16.

Zur Umlenkung des Gasstrahles enthält die Rohrdüse 3 im Bereich ihres zylindrischen Mantels 5 eine der Austrittsöffnung 30 des unteren Bohrungsabschnittes 16 gegenüberliegende schräge Verbindungsleitung 4-. Die Verbindungsleitung 4 ist in dem Längenbereich zwischen der Eintrittsöffnung 18 auf dem Mantel 5 und der Schnittstelle 20 mit einer parallel zur Achse 17 der Rohrdüse 3 verlaufenden Innenbohrung 1 angeordnet, wobei die Verbindungsleitung 4 gegenüber der Innenbohrrung 1 unter einem Neigungswinkel α<90°, vorzugsweise α<60°, schräg angeordnet ist und gegenüber dem Durchmesser d3 der Innenbohrung 1 einen größeren Durchmesser d1 aufweist. Die Innenbohrung 1 beginnt an der Schnittfläche 20 und hat ihren Austritt an der Stirnseite 21 des Ansatzes 22. Die Innenbohrung 1 ist unterhalb der Achse 17 angeordnet, wodurch sich vorteihaft ein relativ groß verbleibender Querschnitt zwischen der Verbindungsleitung 4 und dem Bohrungsabschnitt 15 ergibt.To deflect the gas jet, the tubular nozzle 3 contains, in the region of its cylindrical jacket 5, an inclined connecting line 4- opposite the outlet opening 30 of the lower bore section 16. The connecting line 4 is arranged in the length range between the inlet opening 18 on the jacket 5 and the interface 20 with an inner bore 1 running parallel to the axis 17 of the tubular nozzle 3, the connecting line 4 being preferably at an angle of inclination α <90 ° with respect to the inner bore 1 α <60 °, is arranged obliquely and opposite the diameter d 3 of the inner bore 1 has a larger diameter d 1 . The inner bore 1 begins at the cut surface 20 and has its outlet at the end face 21 of the neck 22. The inner bore 1 is arranged below the axis 17, which advantageously results in a relatively large cross section remaining between the connecting line 4 and the bore section 15.

Der Durchmesser d1 der Verbindungsleitung 4 ist gegenüber dem Durchmesser d2 der Gasentnahmebohrung 2 derartig größer ausgeführt, daß unter Berücksichtigung aller fertigungsbedingten Toleranzen der Bohrung 2, 4 und befestigungsbedingten Verschiebungen der Rohrdüse 3 der Austritttsquerschnitt der Entnahmebohrung 2 von dem Eintrittsquerschnitt der Verbindungsleitung 4 überdeckt wird.The diameter d 1 of the connecting line 4 is larger than the diameter d 2 of the gas extraction bore 2 such that taking into account all manufacturing-related tolerances of the bore 2, 4 and fixation-related displacements of the tubular nozzle 3, the outlet cross section of the extraction bore 2 is covered by the inlet cross section of the connecting line 4 .

Die Gasentnahmebohrung 2 ist derartig schräg in dem Rohrring 9 angeordnet, daß der den Mantel 5 der Rohrdüse 3 angrenzende Querschnitt 13 des äußeren Bohrungsabschnitts 15 dem in die Verbindungsleitung 4 einmündenden Querschnitt 14 des inneren Bohrungsabschnittes 16 nicht überlappend senkrecht zur Achse 17 der Bohrung 8 gegenüberliegt. Diese Anordnung gestattet es, ohne Einsatz zusätzlicher Dichtungsmittel und Verschraubungen, den äußeren Bohrungsabschnitt 15 durch die Rohrdüse 3 abzudichten. Verstärkt wird diese Abdichtung durch den an der Schnittstelle 20 auftretenden Staudruck, der einerseits durch die Umlenkung des Gasstromes in die Richtung 19 (Fig. 2) und andererseits durch den gegenüber dem Durchmesser d1 der Verbindungsleitung 4 reduzierten Durchmesser d3 der Innenbohrung 1 hervorgerufen wirdThe gas extraction bore 2 is arranged obliquely in the tubular ring 9 in such a way that the cross section 13 of the outer bore section 15 adjoining the jacket 5 of the tubular nozzle 3 does not overlap the cross section 14 of the inner bore section 16 which opens into the connecting line 4 and does not overlap perpendicular to the axis 17 of the bore 8. This arrangement makes it possible to seal the outer bore section 15 through the tubular nozzle 3 without the use of additional sealing means and screw connections. This seal is reinforced by the dynamic pressure occurring at the interface 20, which is caused on the one hand by the deflection of the gas flow in the direction 19 (FIG. 2) and on the other hand by the reduced diameter d 3 of the inner bore 1 compared to the diameter d 1 of the connecting line 4

Entsprechend der Fig. 2, 3 und 4 ist der an der Stirnseite 21 der Rohrdüse 3 angeordnete Ansatz 22 zylindrisch und längsseitig mehrfach segmentartig abgeschrägt ausgeführt, wobei dessen untere Segmentfläche 23 als Sicherungsmittel 6 eine dem Außendurchmesser des Waffenrohres 10 angepaßte kreisförmige Krümmung 24 aufweist.According to FIGS. 2, 3 and 4, the projection 22 arranged on the end face 21 of the tubular nozzle 3 is cylindrical and, on the long side, designed with multiple beveled segments, the lower segment surface 23 of which, as securing means 6, has a circular curvature 24 which is adapted to the outer diameter of the weapon barrel 10.

Zur Aufnahme des nachfedernden Sicherheitselementes 11 enthält der Ansatz 22 eine kreisförmig umlaufende Rille 25, die im unteren, dem Waffenrohr 10 benachbarten Bereich 26, von der Kreisform abweichend, horizontal und gerade ausgeführt ist. Als Sicherheitselement 11 ist ein runder Federdraht derartig ausgebildet, daß er in dem Bereich 26 elastisch nachfedern und in die Nute 12 des Waffenrohres 10 einrasten kann.To accommodate the resilient security element 11, the attachment 22 contains a circular circumferential groove 25 which, in the lower region 26 adjacent to the weapon barrel 10, is designed to be horizontal and straight, deviating from the circular shape. A round spring wire is designed as a security element 11 such that it can elastically spring back in the region 26 and can snap into the groove 12 of the weapon barrel 10.

Zur besseren Lösbarkeit der Rohrdüse 3 aus der Bohrung 8 ist die Nute 12 des Waffenrohres 10 an der vom Bohrring 9 abgewandten Seite mit einer umlaufenden Schräge 27 ausgestattet.For better releasability of the tubular nozzle 3 from the bore 8, the groove 12 of the weapon barrel 10 is provided on the side facing away from the drill ring 9 with a circumferential bevel 27.

Die in der Fig. 1 dargestellte Anordnung läßt sich in vorteilhafter, jedoch nicht dargestellter Weise auch mehrfach auf dem Umfang des Waffenrohres 10 anordnen.The arrangement shown in FIG. 1 can also be arranged in an advantageous but not shown manner several times on the circumference of the weapon barrel 10.

BezugszeichenlisteReference symbol list

  • 1 Innenbohrung1 inner hole
  • 2 Gasentnahmebohrung2 gas sampling hole
  • 3 Rohrdüse3 pipe nozzle
  • 4 Verbindungsleitung4 connecting line
  • 5 Mantel5 coat
  • 6 Sicherungsmittel6 belay devices
  • 7 Umfangsrichtung7 circumferential direction
  • 8 Bohrung8 hole
  • 9 Rohrring9 pipe ring
  • 10 Waffenrohr10 weapon barrel
  • 11 Sicherheitselement11 security element
  • 12 Nute12 grooves
  • 13 Querschnitt13 cross section
  • 14 Querschnitt14 cross section
  • 15 Bohrungsabschnitt15 bore section
  • 16 Bohrungsabschnitt16 bore section
  • 17 Achse17 axis
  • 18 Eintrittsöffnung18 inlet opening
  • 19 Richtung19 direction
  • 20 Schnittfläche20 cut surface
  • 21 Stirnseite21 end face
  • 22 Ansatz22 Approach
  • 23 Segmentfläche23 segment surface
  • 24 Krümmung24 curvature
  • 25 Rille25 groove
  • 26 Bereich26 area
  • 27 Schräge27 slant
  • 28 Waffenrohrachse28 weapon barrel axis
  • 29 Innenraum29 interior
  • 30 Austrittsöffnung30 outlet opening
  • d1Durchmesserd 1 diameter
  • d2Durchmesserd 2 diameter
  • d 3Durchmesser d 3 diameter
  • α Neigungswinkelα angle of inclination

Claims (5)

l. Gasstrahl-Rohrdüse für einen Verschlußantrieb und Munitionstransport einer automatischen Rohrwaffe, die innerhalb einer parallel zur Waffenrohrachse angeordneten zylindrischen Bohrung eines Rohrringes angeordnet ist und eine axial parallel verlaufende Innenbohrung enthält, die mit einer schräg von außen in das Waffenrohr eingebrachten und in den Waffenrohrinnenraum reichenden Gasentnahmebohrung in Verbindung steht, gekennzeich- net durch folgende Merkmale: a) die Rohrdüse (3) weist im Bereich ihres zylindrischen Mantels (5) eine von der Gasentnahmebohrung (2) schräg zur Innenbohrung (1) reichende Verbindungsleitung (4) auf, die von der Eintrittsöffnung (18) bis zu der von der Innenbohrung (1) gebildeten Schnittfläche (20) gegenüber dem Durchmesser d3 der Innenbohrung (1) einen größeren Durchmesser d1 aufweist, wobei die Schnittfläche (20) auch Umlenkstelle des durchströmenden Gasstrahls innerhalb der Rohrdüse (3) ist und der Gasstrahl unter einem Neigungswinkel α<90°, entsprechend der Neigung der Verbindungsleitung (4) gegenüber der Innenbohrung (1), umlenkbar ist; b) zur Lagefixierung der Verbindungsleitung (4) in Umfangsrichtung (7) enthält die Rohrdüse (3) Sicherungsmittel (6); c) an der Rohrdüse (3) ist weiter ein nachfederndes Sicherheitselement (11) angeordnet, das in Sicherstellung in einer Nute (12) des Waffenrohres (10) eingerastet ist und ein Herausfallen der Rohrdüse (3) aus der Bohrung (8) verhindert. l. Gas jet barrel nozzle for a breech drive and ammunition transport of an automatic barrel weapon, which is arranged within a cylindrical bore of a barrel ring arranged parallel to the barrel axis and contains an axially parallel inner bore which has a gas extraction bore which is inserted obliquely from outside into the barrel and extends into the interior of the barrel Connection is established, characterized by the following features: a) the tubular nozzle (3) has in the area of its cylindrical casing (5) a connecting line (4) extending from the gas extraction bore (2) obliquely to the inner bore (1), which from the inlet opening (18) to that of the inner bore ( 1) formed cutting surface (20) compared to the diameter d 3 of the inner bore (1) has a larger diameter d 1 , the cutting surface (20) is also a deflection point of the gas jet flowing inside the tubular nozzle (3) and the gas jet can be deflected at an angle of inclination α <90 °, corresponding to the inclination of the connecting line (4) with respect to the inner bore (1); b) for fixing the position of the connecting line (4) in the circumferential direction (7), the tubular nozzle (3) contains securing means (6); c) a resilient safety element (11) is further arranged on the tubular nozzle (3), which is locked in a groove (12) in the weapon barrel (10) and prevents the tubular nozzle (3) from falling out of the bore (8). 2. Gasstrahl-Rohrdüse nach Anspruch 1, dadurch gekennzeichnet, daß der Durchmesser d1 der Verbindungsleitung (4) derartig größer als der Durchmesser d2 der Gasentnahmebohrung (2) ist, daß unter Berücksichtigung aller fertigungsbedingten Toleranzen der Bohrungen (2, 4) und befestigungsbedingten Verschiebungen der Rohrdüse (3) der Austrittsquerschnitt der Entnahmebohrung (2) von dem Eintrittsquerschnitt der Verbindungsleitung (4) überdeckt wird.2. Gas jet tube nozzle according to claim 1, characterized in that the diameter d 1 of the connecting line (4) is larger than the diameter d 2 of the gas extraction bore (2) that taking into account all manufacturing tolerances of the bores (2, 4) and fixation-related displacements of the pipe nozzle (3) the outlet cross section of the extraction bore (2) is covered by the inlet cross section of the connecting line (4). 3. Gasstrahl-Rohrdüse nach Anspruch 1 und 2, da- durch gekennzeichnet , daß die Gasentnahmebohrung (2) derartig schräg in einem mit dem Waffenrohr (10) integrierten Rohrring (9) angeordnet ist, daß der den Mantel (5) der Rohrdüse (3) angrenzende Querschnitt (13) des äußeren Bohrungsabschnittes (15) dem in die Verbindungsleitung (4) einmündenden Querschnitt (14) des inneren Bohrungsabschnittes (16) nicht überlappend senkrecht zur Achse 17 der Bohrung (8) gegenüberliegt.3. Gas jet tube nozzle according to claim 1 and 2, characterized in that the gas extraction bore (2) is arranged obliquely in a with the weapon barrel (10) integrated tube ring (9) that the jacket (5) of the tube nozzle ( 3) adjacent cross-section (13) of the outer bore section (15) does not overlap the cross-section (14) of the inner bore section (16) opening into the connecting line (4) perpendicular to the cross-section Axis 17 of the bore (8) is opposite. 4) Gasstrahl-Rohrdüse nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Rohrdüse (3) an der Stirnseite (21) einen längsseitig mehrfach segmentartig abgeschrägten zylindrischen Ansatz (22) enthält, dessen untere Segmentfläche (23) als Sicherungsmittel (6) eine dem Außendurchmesser des Waffenrohres (10) angepaßte kreisförmige Krümmung (24) aufweist.4) Gas jet tube nozzle according to one of claims 1 to 3, characterized in that the tube nozzle (3) on the end face (21) contains a cylindrical projection (22) which is chamfered several times on the longitudinal side, the lower segment surface (23) of which as securing means (6 ) has a circular curvature (24) adapted to the outside diameter of the weapon barrel (10). 5) Gasstrahl-Rohrdüse nach einem der Ansprüche 1 bis 4, gekennzeichnet durch folgende Merkmale: a) der Ansatz (22) enthält eine kreisförmig umlaufende Rille (25) zur Aufnahme des nachfedernden Sicherheitselementes (11), wobei die Rille(25)in dem unteren, dem Waffenrohr (10) benachbarten Bereich (26) horizontal und gerade ausgearbeitet ist; b) als Sicherheitselement (11) ist ein runder Federdraht derartig ausgebildet, daß er in dem Bereich (26) elastisch nachfedern und in die Nute (12) des Waffenrohrs (10) einrasten kann; c) die Nute 12 des Waffenrohres (10) enthält an der vom Rohrring (9) abgewandten Seite eine umlaufende Schräge (27), mittels derer das eingerastete Sicherheitselement (11) aus der Sicherstellung lösbar ist. 5) Gas jet pipe nozzle according to one of claims 1 to 4, characterized by the following features: a) the approach (22) contains a circular circumferential groove (25) for receiving the resilient security element (11), the groove (25) in the lower region (26) adjacent to the weapon barrel (10) being worked out horizontally and straight; b) as a security element (11), a round spring wire is designed such that it can spring back elastically in the area (26) and can snap into the groove (12) of the weapon barrel (10); c) the groove 12 of the weapon barrel (10) contains on the side facing away from the barrel ring (9) a circumferential bevel (27) by means of which the latched security element (11) can be released from the securing.
EP84109999A 1983-10-14 1984-08-22 Gas jet nozzle tube for breech operation and ammunition transport of an automatic barrel weapon Expired EP0158705B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833337423 DE3337423A1 (en) 1983-10-14 1983-10-14 GAS-JET PIPE NOZZLE FOR A BUTTON DRIVE AND AMMUNITION TRANSPORTATION OF AN AUTOMATIC PIPE ARM
DE3337423 1983-10-14

Publications (3)

Publication Number Publication Date
EP0158705A2 true EP0158705A2 (en) 1985-10-23
EP0158705A3 EP0158705A3 (en) 1987-01-21
EP0158705B1 EP0158705B1 (en) 1988-10-05

Family

ID=6211848

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84109999A Expired EP0158705B1 (en) 1983-10-14 1984-08-22 Gas jet nozzle tube for breech operation and ammunition transport of an automatic barrel weapon

Country Status (3)

Country Link
EP (1) EP0158705B1 (en)
JP (1) JPS60101498A (en)
DE (2) DE3337423A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3642552A1 (en) * 1986-03-20 1987-10-01 Oerlikon Buehrle Ag GAS EXTRACTION DEVICE FOR A SELF-ACTING FIREARM CONTROLLED BY GAS PRESSURE
EP1106953A2 (en) * 1999-12-10 2001-06-13 FABBRICA D'ARMI P.BERETTA S.p.A. Improved gas operated shotgun

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3501516A1 (en) * 1985-01-18 1986-07-24 Mauser-Werke Oberndorf Gmbh, 7238 Oberndorf Weapon barrel for automatic firearms

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1453933B (en) * Oerlikon-Bührle Holding AG, Zürich (Schweiz) Sealing device 'for the gas sampling channel in gas pressure boosters
US3893370A (en) * 1974-01-30 1975-07-08 Remington Arms Co Inc Gas cylinder attachment using a formed pin as orifice liner

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1453933B (en) * Oerlikon-Bührle Holding AG, Zürich (Schweiz) Sealing device 'for the gas sampling channel in gas pressure boosters
DE1453934B (en) * Oerhkon Buhrle Holding AG, Zurich (Schweiz) Gas sampling device for an automatic firearm controlled by gas pressure
US3893370A (en) * 1974-01-30 1975-07-08 Remington Arms Co Inc Gas cylinder attachment using a formed pin as orifice liner

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3642552A1 (en) * 1986-03-20 1987-10-01 Oerlikon Buehrle Ag GAS EXTRACTION DEVICE FOR A SELF-ACTING FIREARM CONTROLLED BY GAS PRESSURE
US4798124A (en) * 1986-03-20 1989-01-17 Werkzeugmaschinenfabrik Oerlikon-Buhrle Ag Gas removal apparatus for an automatic firing weapon controlled by the gas pressure
CH669839A5 (en) * 1986-03-20 1989-04-14 Oerlikon Buehrle Ag
EP1106953A2 (en) * 1999-12-10 2001-06-13 FABBRICA D'ARMI P.BERETTA S.p.A. Improved gas operated shotgun
JP2001227898A (en) * 1999-12-10 2001-08-24 Fab Darmi P Beretta Spa Improved gas pressure type shotgun
EP1106953A3 (en) * 1999-12-10 2002-12-11 FABBRICA D'ARMI P.BERETTA S.p.A. Improved gas operated shotgun

Also Published As

Publication number Publication date
JPS60101498A (en) 1985-06-05
EP0158705B1 (en) 1988-10-05
DE3474471D1 (en) 1988-11-10
DE3337423A1 (en) 1985-04-25
EP0158705A3 (en) 1987-01-21

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