EP2191222B1 - Gun barrel for launching spin-stabilized projectiles - Google Patents
Gun barrel for launching spin-stabilized projectiles Download PDFInfo
- Publication number
- EP2191222B1 EP2191222B1 EP08801812.2A EP08801812A EP2191222B1 EP 2191222 B1 EP2191222 B1 EP 2191222B1 EP 08801812 A EP08801812 A EP 08801812A EP 2191222 B1 EP2191222 B1 EP 2191222B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sealing ring
- barrel
- guiding band
- projectile
- gun barrel
- 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
Links
Images
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
- F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
- F41A21/12—Cartridge chambers; Chamber liners
-
- 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
- F41A21/16—Barrels or gun tubes characterised by the shape of the bore
-
- 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 gun barrel for firing spin-stabilized projectiles with a guide band and a rear side arranged behind the guide band sealing ring, with the features specified in the preamble of claim 1.
- Such gun tubes have long been known and usually include a cargo space, a drawn pipe part and arranged between the cargo space and the drawn pipe part transition cone.
- a projectile For loading a projectile it is pushed so far through the cargo space in the rear-side region of the drawn pipe part until the guide band of the projectile is located on the field-pull profile of the drawn pipe part.
- the rear side arranged by the guide band sealing ring which usually has a slightly larger outer diameter than the guide band is still in the transition cone of the gun barrel and should prevent firing at the beginning of the gas pressure buildup in the cargo space that the hot propellant gases between the guide band and the directly flow past the transition cone subsequent field-tensile profile of the drawn pipe part.
- the GB 232 989 A discloses a way to wear ammunition from a drawn barrel either very far or very short.
- the chamber of the gun barrel has at least two pressure cone, wherein at least between the first and the second cone a smooth section is provided.
- the rear pressure ball is intended for ammunition that is closed at close range, the front pressure cone for the firing of ammunition for the other distances.
- the range change itself is achieved by the length of the projectile or cartridge case is chosen differently.
- the ammunition is located on the rear or on the front shoulder of the cartridge chamber.
- the length of the cartridge chamber is dependent on the length of the cartridge case of the ammunition.
- the sealing ring In practice, however, it has been shown that, depending on the depth of the projectile, the sealing ring often does not rest exactly on the side walls of the transition cone and a complete initial sealing is not ensured by the sealing ring when firing. If an initial seal is not provided, the hot propellant gases flow between the guide band and the field-tensile profile in the region of the transition between the cargo space and the high-speed caliber flow part and cause severe erosion damage to the cargo chamber side end of the drawn pipe member. These erosion damages then lead to the separation of the weapon barrel.
- the invention has for its object to provide a gun barrel, in which an initial seal between the projectile and the field-tensile profile of the drawn pipe part is ensured against hot propellant gases, so that erosion damage on the load-space side Minimized end of the drawn pipe part.
- the invention is based essentially on the idea to arrange between the adjoining the cargo space transition cone and the drawn pipe part designed as a smooth tube section whose inner diameter is greater than or equal to the outer diameter of the guide band, but slightly smaller than the outer diameter of the sealing ring of the projectiles to be fired is, wherein the length of the smooth tube section is at least the length of the guide band and the sealing ring (together) of the respective projectile.
- the sealing ring arranged behind the guide band ensures an excellent initial seal when firing in the smooth pipe section until the guide strip is pressed completely into the field-pull profile of the drawn pipe part.
- a gun barrel for firing a spin-stabilized projectile 2 The gun barrel 1 comprises a cargo space 3, a drawn pipe part 4 with a known field-train profile and a between the Cargo space 3 and the drawn pipe part 4 arranged transition cone. 5
- a section 6 designed as a smooth tube is arranged between the transition cone 5 directly adjoining the charge space 3 and the drawn tube part 4.
- the designated D0 inner diameter of this smooth tube section 6 is selected such that it is slightly larger than the outer diameter D1 of the guide band 7 of each projectile to be fired and approximately equal to the outer diameter of a rear side on the guide band 7 of the projectile 2 arranged sealing ring. 8
- the length of the smooth tube section 6, however, is selected such that it corresponds at least to the length L0 of the guide band 7 and the length L1 of the sealing ring 8 of the respective projectile 2. This ensures that after loading the projectile 2 of the sealing ring 8 is located within the Giattrohrabêtes 6 and located in front of the guide belt 7 of the projectile 2 area 9 of the transition between the smooth pipe section 6 and the drawn pipe part 4 at firing against the in the cargo space. 3 generated propellant gases is securely sealed.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Toys (AREA)
- Portable Nailing Machines And Staplers (AREA)
Description
Die Erfindung betrifft ein Geschützrohr zum Verschießen drallstabilisierter Geschosse mit einem Führungsband und einem heckseitig hinter dem Führungsband angeordneten Dichtring, mit den im Oberbegriff des Anspruchs 1 angegebenen Merkmalen.The invention relates to a gun barrel for firing spin-stabilized projectiles with a guide band and a rear side arranged behind the guide band sealing ring, with the features specified in the preamble of
Derartige Geschützrohre sind seit langem bekannt und umfassen üblicherweise einen Ladungsraum, ein gezogenes Rohrteil und einen zwischen dem Ladungsraum und dem gezogenen Rohrteil angeordneten Übergangskegel. Zum Laden eines Geschosses wird dieses durch den Ladungsraum hindurch so weit in den heckseitigen Bereich des gezogenen Rohrteiles hineingeschoben, bis das Führungsband des Geschosses sich an dem Feld-Zug-Profil des gezogenen Rohrteiles befindet. Der heckseitig von dem Führungsband angeordnete Dichtring, der üblicherweise einen etwas größeren Außendurchmesser aufweist als das Führungsband, befindet sich dabei noch in dem Übergangskegel des Geschützrohres und soll bei Schussabgabe zu Beginn des Gasdruckaufbaues im Ladungsraum verhindern, dass die heißen Treibladungsgase zwischen Führungsband und dem sich unmittelbar an dem Übergangskegel anschließenden Feld-Zug-Profil des gezogenen Rohrteiles vorbeiströmen.Such gun tubes have long been known and usually include a cargo space, a drawn pipe part and arranged between the cargo space and the drawn pipe part transition cone. For loading a projectile it is pushed so far through the cargo space in the rear-side region of the drawn pipe part until the guide band of the projectile is located on the field-pull profile of the drawn pipe part. The rear side arranged by the guide band sealing ring, which usually has a slightly larger outer diameter than the guide band is still in the transition cone of the gun barrel and should prevent firing at the beginning of the gas pressure buildup in the cargo space that the hot propellant gases between the guide band and the directly flow past the transition cone subsequent field-tensile profile of the drawn pipe part.
Die
In der Praxis hat sich allerdings gezeigt, dass je nach Ansatztiefe des Geschosses der Dichtring häufig nicht an den Seitenwänden des Übergangskegels exakt anliegt und bei Schussabgabe eine vollständige Anfangsabdichtung durch den Dichtring nicht sichergestellt wird. Ist eine Anfangsabdichtung nicht gegeben, strömen die heißen Treibladungsgase zwischen dem Führungsband und dem Feld-Zug-Profil im Bereich des Überganges zwischen Ladungsraum und Kaliberteil mit hoher Strömungsgeschwindigkeit vorbei und verursachen starke Erosionsschäden am ladungsraumseitigen Ende des gezogenen Rohrteiles. Diese Erosionsschäden führen dann zur Aussonderung des Waffenrohres.In practice, however, it has been shown that, depending on the depth of the projectile, the sealing ring often does not rest exactly on the side walls of the transition cone and a complete initial sealing is not ensured by the sealing ring when firing. If an initial seal is not provided, the hot propellant gases flow between the guide band and the field-tensile profile in the region of the transition between the cargo space and the high-speed caliber flow part and cause severe erosion damage to the cargo chamber side end of the drawn pipe member. These erosion damages then lead to the separation of the weapon barrel.
Der Erfindung liegt die Aufgabe zugrunde, ein Geschützrohr anzugeben, bei dem eine Anfangsabdichtung zwischen Geschoss und dem Feld-Zug-Profil des gezogenen Rohrteiles gegen heiße Treibladungsgase sichergestellt wird, so dass Erosionsschäden am la-dungsraumseitigen Ende des gezogenen Rohrteiles minimiert werden.The invention has for its object to provide a gun barrel, in which an initial seal between the projectile and the field-tensile profile of the drawn pipe part is ensured against hot propellant gases, so that erosion damage on the load-space side Minimized end of the drawn pipe part.
Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst.This object is achieved by the features of
Die Erfindung beruht im wesentlichen auf dem Gedanken, zwischen dem sich an den Ladungsraum anschließenden Übergangskegel und dem gezogenen Rohrteil einen als Glattrohr ausgebildeten Abschnitt anzuordnen, dessen Innendurchmesser größer oder gleich dem Außendurchmesser des Führungsbandes, aber etwas kleiner als der Außendurchmesser des Dichtringes der zu verschießenden Geschosse ist, wobei die Länge des Glattrohrabschnittes mindestens der Länge des Führungsbandes und des Dichtringes (zusammen) des jeweiligen Geschosses ist.The invention is based essentially on the idea to arrange between the adjoining the cargo space transition cone and the drawn pipe part designed as a smooth tube section whose inner diameter is greater than or equal to the outer diameter of the guide band, but slightly smaller than the outer diameter of the sealing ring of the projectiles to be fired is, wherein the length of the smooth tube section is at least the length of the guide band and the sealing ring (together) of the respective projectile.
Wie Schussversuche gezeigt haben, sorgt der hinter dem Führungsband angeordnete Dichtring bei Schussabgabe in dem glatten Rohrstück für eine ausgezeichnete Anfangsabdichtung, bis das Führungsband vollständig in das Feld-Zug-Profil des gezogenen Rohrteiles gepresst wird.As firing tests have shown, the sealing ring arranged behind the guide band ensures an excellent initial seal when firing in the smooth pipe section until the guide strip is pressed completely into the field-pull profile of the drawn pipe part.
Außerdem wird durch die Einfügung des Glattrohres der Anfang des Feld-Zug-Profiles des gezogenen Rohrteiles aus dem bei bekannten Geschützrohren stark erosionsgefährdeten Bereich am Übergangskegel herausverlagert.In addition, the beginning of the field-pull profile of the drawn pipe part is displaced out of the strong erosion-prone in the known gun barrels area at the transition cone by the insertion of the smooth tube.
Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus dem folgenden, anhand von Figuren erläuterten Ausführungsbeispiel. Es zeigen:
-
Fig.1 den Längsschnitt eines erfindungsgemäßen Geschützrohres im Bereich des Überganges zwischen Ladungsraum und gezogenem Rohrteil ohne Geschoss; -
Fig.2 einenFig.1 entsprechenden Längsschnitt mit einem geladenen Geschoss und -
Fig.3 einen inFig.2 mit III bezeichneten vergrößerten Ausschnitt.
-
Fig.1 the longitudinal section of a gun barrel according to the invention in the region of the transition between the cargo space and drawn pipe part without projectile; -
Fig.2 oneFig.1 corresponding longitudinal section with a charged bullet and -
Figure 3 one inFig.2 with III designated enlarged detail.
In den
Erfindungsgemäß ist nun vorgesehen, dass zwischen dem sich an den Ladungsraum 3 direkt anschließenden Übergangskegel 5 und dem gezogenen Rohrteil 4 ein als Glattrohr ausgebildeter Abschnitt 6 angeordnet ist. Dabei ist der mit D0 bezeichnete Innendurchmesser dieses Glattrohrabschnittes 6 derart gewählt, dass er etwas größer als der Außendurchmesser D1 des Führungsbandes 7 des jeweils zu verschießenden Geschosses ist und etwa gleich dem Außendurchmesser eines heckseitig an dem Führungsband 7 des Geschosses 2 angeordneten Dichtrings 8.According to the invention, it is now provided that a
Die Länge des Glattrohrabschnittes 6 ist hingegen derart gewählt, dass sie mindestens der Länge L0 des Führungsbandes 7 und der Länge L1 des Dichtringes 8 des jeweiligen Geschosses 2 entspricht. Dadurch wird sichergestellt, dass sich nach dem Laden des Geschosses 2 der Dichtring 8 innerhalb des Giattrohrabschnittes 6 befindet und der vor dem Führungsband 7 des Geschosses 2 befindliche Bereich 9 des Überganges zwischen dem Glattrohrabschnitt 6 und dem gezogenen Rohrteil 4 bei Schussabgabe gegen die im Ladungsraum 3 erzeugten Treibladungsgase sicher abgedichtet wird.The length of the
- 11
- Geschützrohrgun barrel
- 22
- Geschossbullet
- 33
- Ladungsraumcargo space
- 44
- gezogenes Rohrteildrawn pipe part
- 55
- ÜbergangskegelTransition cone
- 66
- Abschnitt, GlattrohrabschnittSection, smooth pipe section
- 77
- Führungsbandguide band
- 88th
- Dichtringseal
- 99
- BereichArea
- D0D0
- Innendurchmesser (Glattrohr)Inside diameter (smooth tube)
- D1D1
- Außendurchmesser (FührungsbandOuter diameter (guide band
- L0L0
- Länge (Führungsband)Length (guide band)
- L1L1
- Länge (Dichtring)Length (sealing ring)
Claims (4)
- System, consisting of a gun barrel for launching spin-stabilized projectiles (2) and a projectile (2) with a guiding band (7) and a sealing ring (8) arranged on the rear side behind the guiding band (7), the gun barrel (1) comprising a loading chamber (3), a rifled barrel part (4) and a transitional cone (5), arranged between the loading chamber (3) and the rifled barrel part (4),
wherein
a portion (6) formed as a smooth barrel is arranged between the transitional cone (5), adjoining the loading chamber (3), and the rifled barrel part (4), so that the beginning of the land-groove profile of the rifled barrel part (4) is displaced out of the highly erosion-prone region (9) at the transitional cone (5),
characterized in that• the inside diameter (D0) of the portion (6) formed as a smooth barrel is greater than or equal to the outside diameter (D1) of the guiding band (7), but approximately equal to the outside diameter of the sealing ring (8) of the projectiles (2) to be launched from the gun barrel (1), and in that• the length of the smooth barrel portion (6) corresponds at least to the length (L0) of the guiding band (7) and the length (L1) of the sealing ring (8) of the projectiles (2) to be launched, wherein• the guiding band (7) and the sealing ring (8) are arranged directly one behind the other, even as one part, or• the sealing ring (8) is located in a separate flute in the projectile (2) further behind the guiding band (7) and• when a shot is fired, the sealing ring (8) arranged behind the guiding band (7) provides initial sealing in the portion (6) formed as a smooth barrel, until the guiding band (7) is forced completely into the land-groove profile of the rifled barrel part (4). - Projectile (2) for launching from a gun barrel (1) according to Claim 1, characterized in that the guiding band (7) and the sealing ring (8) are arranged directly one behind the other.
- Projectile according to Claim 2, characterized in that the guiding band (7) and the sealing ring (8) are formed as one part.
- Projectile (2) for launching from a gun barrel (1) according to Claim 1, characterized in that the sealing ring (8) is located in a separate flute in the projectile (2) further behind the guiding band (7).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007045721A DE102007045721A1 (en) | 2007-09-24 | 2007-09-24 | Gun barrel for firing spin-stabilized projectiles |
PCT/EP2008/007179 WO2009039941A1 (en) | 2007-09-24 | 2008-09-03 | Gun barrel for locking spin-stabilized projectiles |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2191222A1 EP2191222A1 (en) | 2010-06-02 |
EP2191222B1 true EP2191222B1 (en) | 2014-04-16 |
Family
ID=40260488
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08801812.2A Not-in-force EP2191222B1 (en) | 2007-09-24 | 2008-09-03 | Gun barrel for launching spin-stabilized projectiles |
Country Status (5)
Country | Link |
---|---|
US (1) | US20100192445A1 (en) |
EP (1) | EP2191222B1 (en) |
DE (1) | DE102007045721A1 (en) |
IL (1) | IL204602A (en) |
WO (1) | WO2009039941A1 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1455354A (en) * | 1918-05-28 | 1923-05-15 | Winfield P Porter | Projectile |
DE4000167A1 (en) * | 1990-01-05 | 1991-07-11 | Rheinmetall Gmbh | SWIRL-STABILIZED SHELTER FLOOR WITH A METAL GUIDE TAPE |
DE19532745A1 (en) * | 1995-09-05 | 1997-03-06 | Rheinmetall Ind Ag | Spin-stabilised shell |
EP1006337A2 (en) * | 1998-12-02 | 2000-06-07 | Rheinmetall W & M GmbH | Spin stabilised artillery projectile |
US6536353B1 (en) * | 1998-04-24 | 2003-03-25 | Rheinmetall W & M Gmbh | Spin-stabilized projectile having a multi-part guide band and method of making the projectile |
EP1617167A1 (en) * | 2004-07-17 | 2006-01-18 | Rheinmetall Waffe Munition GmbH | Artillery projectile with driving band |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US997539A (en) * | 1910-02-16 | 1911-07-11 | John H Brown | Gun. |
NL22279C (en) * | 1924-04-28 | |||
FR615566A (en) * | 1925-05-07 | 1927-01-11 | Gun scoring system | |
US1944883A (en) * | 1929-12-24 | 1934-01-30 | Gerlich Hermann | Projectile propelling apparatus |
US2288604A (en) * | 1935-09-28 | 1942-07-07 | Born Waldemar | Projectile |
CH213074A (en) * | 1939-03-23 | 1941-01-15 | Deutsche Waffen & Munitionsfab | Firearm with partly conical barrel inside. |
US2395044A (en) * | 1942-04-02 | 1946-02-19 | Walter T Gorton | Gun |
DE1021759B (en) * | 1954-02-16 | 1957-12-27 | Brevets Aero Mecaniques | Cartridge for in particular automatic firearms |
US2815602A (en) * | 1954-02-23 | 1957-12-10 | Remington Arms Co Inc | Barrel chamber for cartridges of different length |
US2845741A (en) * | 1955-04-27 | 1958-08-05 | Olin Mathieson | Composite firearm barrel |
US3442172A (en) * | 1959-03-13 | 1969-05-06 | Fansteel Inc | Gun barrel liner |
US4366015A (en) * | 1980-05-16 | 1982-12-28 | Murray Myles N | Rubber driving band, artillery shell employing same, and method of making the band and assembling same in the shell |
SE442550B (en) * | 1981-03-25 | 1986-01-13 | Bofors Ab | DEVICE FOR ELECTRIC CHAMBER FOR GROUND ARTILLERY |
USH1365H (en) * | 1994-02-04 | 1994-11-01 | The United States Of America As Represented By The Secretary Of The Air Force | Hybrid gun barrel |
SE508696C2 (en) * | 1995-08-23 | 1998-10-26 | Rheinmetall Ind Ag | Pulled gunpipe and method of making such pipe |
DE19815295C2 (en) * | 1998-04-06 | 2003-05-15 | Rheinmetall W & M Gmbh | Spin-stabilized artillery shell that can be fired from a gun barrel |
DE19855535A1 (en) * | 1998-12-02 | 2000-06-08 | Rheinmetall W & M Gmbh | Swirl-stabilized artillery shell |
DE10213466A1 (en) * | 2002-03-26 | 2003-10-09 | Rheinmetall W & M Gmbh | bullet body |
SE529753C2 (en) * | 2006-03-14 | 2007-11-13 | Bae Systems Bofors Ab | Projectile or grenade with sliding belt, which seals so that fire tube wear does not affect the firing rate |
-
2007
- 2007-09-24 DE DE102007045721A patent/DE102007045721A1/en not_active Withdrawn
-
2008
- 2008-09-03 EP EP08801812.2A patent/EP2191222B1/en not_active Not-in-force
- 2008-09-03 WO PCT/EP2008/007179 patent/WO2009039941A1/en active Application Filing
- 2008-09-03 US US12/679,638 patent/US20100192445A1/en not_active Abandoned
-
2010
- 2010-03-18 IL IL204602A patent/IL204602A/en not_active IP Right Cessation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1455354A (en) * | 1918-05-28 | 1923-05-15 | Winfield P Porter | Projectile |
DE4000167A1 (en) * | 1990-01-05 | 1991-07-11 | Rheinmetall Gmbh | SWIRL-STABILIZED SHELTER FLOOR WITH A METAL GUIDE TAPE |
DE19532745A1 (en) * | 1995-09-05 | 1997-03-06 | Rheinmetall Ind Ag | Spin-stabilised shell |
US6536353B1 (en) * | 1998-04-24 | 2003-03-25 | Rheinmetall W & M Gmbh | Spin-stabilized projectile having a multi-part guide band and method of making the projectile |
EP1006337A2 (en) * | 1998-12-02 | 2000-06-07 | Rheinmetall W & M GmbH | Spin stabilised artillery projectile |
EP1617167A1 (en) * | 2004-07-17 | 2006-01-18 | Rheinmetall Waffe Munition GmbH | Artillery projectile with driving band |
Also Published As
Publication number | Publication date |
---|---|
US20100192445A1 (en) | 2010-08-05 |
DE102007045721A1 (en) | 2009-04-02 |
IL204602A0 (en) | 2010-11-30 |
IL204602A (en) | 2015-08-31 |
EP2191222A1 (en) | 2010-06-02 |
WO2009039941A1 (en) | 2009-04-02 |
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