EP0973003B1 - Procédé et dispositif pour le refroidissement des tubes de canon - Google Patents

Procédé et dispositif pour le refroidissement des tubes de canon Download PDF

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Publication number
EP0973003B1
EP0973003B1 EP99112908A EP99112908A EP0973003B1 EP 0973003 B1 EP0973003 B1 EP 0973003B1 EP 99112908 A EP99112908 A EP 99112908A EP 99112908 A EP99112908 A EP 99112908A EP 0973003 B1 EP0973003 B1 EP 0973003B1
Authority
EP
European Patent Office
Prior art keywords
pressure
barrel
nozzle
cooling medium
feed pipe
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.)
Expired - Lifetime
Application number
EP99112908A
Other languages
German (de)
English (en)
Other versions
EP0973003A1 (fr
Inventor
Michael Gerber
Gabriel Schneider
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 Air Defence AG
Original Assignee
Oerlikon Contraves AG
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 Oerlikon Contraves AG filed Critical Oerlikon Contraves AG
Publication of EP0973003A1 publication Critical patent/EP0973003A1/fr
Application granted granted Critical
Publication of EP0973003B1 publication Critical patent/EP0973003B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F41A13/00—Cooling or heating systems; Blowing-through of gun barrels; Ventilating systems
    • F41A13/04—Injecting fluids into barrels or cartridge chambers

Definitions

  • the invention relates to a method and a device for cooling gun barrels for Firearms, with a gun barrel over at least one supply line and at least one A coolant is supplied to the nozzle.
  • the patent cited above proposes to provide cooling channels in the area of the end part of the gun barrel axially adjacent to a barrel in the barrel, radially outward between the individual cartridges, which have a main channel for the coolant supply running in the barrel axis are connected.
  • the cooling channels are connected to nozzles running parallel to the longitudinal axis of the drum, which open into the end of the drum facing the weapon barrel and are arranged at the same distance from the longitudinal axis of the drum as the central longitudinal axes of the cartridge chamber.
  • Shut-off devices for the nozzles are provided in the cooling channels, which in the event of bombardment briefly release the nozzle in the area of the pipe opening.
  • the shut-off devices are, for example, slides which can be moved by means of control pieces sliding along a control cam when the drum rotates.
  • the coolant passes through the nozzles directly onto the inner wall of the barrel in the rear part.
  • the nozzles are only open for the period when the nozzles slide past in the rear of the gun barrel and the coolant is only supplied when shooting.
  • the period of gliding past may be too short, so that too little coolant gets into the barrel and possibly insufficient cooling is achieved.
  • the invention has for its object a method and an apparatus of the beginning to propose the type mentioned, by means of which sufficient cooling of the gun barrels can be achieved with high-level weapon systems.
  • the advantages that can be achieved with the invention are in particular in the automatic Relubricate the gun barrel and in the longer barrel life with more intensive Feuerrythmen.
  • the use of one or more nozzles ensures that a sufficient amount of coolant is injected into the gun barrel, with each Shot only a little coolant can flow back.
  • Another advantage is that during the use of the proposed Cooling device - with the exception of the piston - no mechanically moving parts required with which a high degree of reliability is achieved.
  • a reservoir 6 which also contains a coolant 7 which also serves as a lubricant for the weapon barrel 1 , is connected to a pressure cylinder 10 via a line 8 and a check valve 9 .
  • a piston 11 is guided in the pressure cylinder 10 and is firmly connected to a hydraulic piston 13 guided in a hydraulic cylinder 12 .
  • the pressure cylinder 10 is connected to the weapon barrel 1 via a feed line 14 and an electrically controllable valve 15, for example.
  • a nozzle 16 is provided which has a sleeve 17 connected to the feed line 14 and fastened to the gun barrel 1 .
  • a labyrinth 18 is arranged in the sleeve 17 in which, for example, a labyrinth or serpentine channel 19 or 19 'is provided which, as described in more detail below, brings about a pressure reduction.
  • nozzle bore in the gun barrel 1 denotes a nozzle bore in the gun barrel 1 , which in the present exemplary embodiment is arranged concentrically with the sleeve 17 and whose diameter is smaller than the feed bores 21 , 22 provided in the gun barrel 1 or in the sleeve 17 .
  • the device described above works as follows: By pulling the hydraulic piston 13 , the coolant 7 is conveyed from the reservoir 6 via the line 8 and the check valve 9 into the pressure cylinder 10 , the electrically actuable valve 15 in the feed line 14 being closed. Thereafter, by reversing the pressure on the hydraulic cylinder 12, the hydraulic piston 13 and thus also the piston 11 are moved in the opposite direction and the coolant 7 in the pressure cylinder 10 is set to a specific operating pressure of, for example, approximately 500 bar, making the device ready for use. Before triggering a burst of fire, the valve 15 is opened so that the coolant 7 can flow to the weapon barrel 1 via the feed line 14 and the nozzle (s) 16 .
  • the high gas pressure of, for example, approximately 5000 bar that arises in the subsequent firing of the shot pushes the coolant back, whereby the gas pressure is reduced to the operating pressure of approximately 500 bar by friction in the nozzle 16 and only a small amount of coolant 7 flows back.
  • the coolant 7 is continuously injected into the gun barrel 1 by the operating pressure until another shot is fired.
  • valve 15 is closed again.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Claims (5)

  1. Procédé destiné à refroidir des canons d'armes à feu, un agent réfrigérant (7) étant amené à un canon (1) au moyen d'au moins une conduite d'alimentation (14) et d'au moins une buse (16),
    caractérisé en ce que
    par la remontée d'un piston hydraulique (13), l'agent réfrigérant (7) passe d'un réservoir (6) dans un vérin pneumatique (10), la conduite d'alimentation (14) menant au canon étant fermée,
    ensuite, par une inversion de la pression, le piston hydraulique (13) se déplace dans la direction opposée et l'agent réfrigérant (7) est soumis dans le vérin pneumatique (10) à une pression de régime déterminée,
    avant le déclenchement d'un tir, la conduite d'alimentation (14) s'ouvre, de sorte que l'agent réfrigérant (7) peut se répandre jusqu'au canon (1) via la conduite d'alimentation (14) et la buse (16), et que
    l'agent réfrigérant (7) est refoulé par la pression gazeuse créée lors de la décharge et est de nouveau injecté dans le canon (1) après la diminution de la pression gazeuse jusqu'à son niveau de régime.
  2. Procédé conforme à la revendication 1,
    caractérisé en ce que
    la pression de régime déterminée se situe entre la pression ambiante et la pression gazeuse existante lors du tir.
  3. Dispositif servant à effectuer le procédé conforme à la revendication 1, prévoyant au moins une buse (16) destinée à un agent réfrigérant (7) et reliée à une conduite d'alimentation (14),
    caractérisé en ce que
    la conduite d'alimentation (14) est reliée au canon (1), à une extrémité, à l'aide de la buse (16) et communique avec un vérin pneumatique (10), à l'autre extrémité, au moyen d'un clapet (15),
    que le vérin pneumatique (10) est relié à un réservoir (6) à l'aide d'une conduite (8) et d'un clapet anti-retour (9), et
    qu'un piston (11), solidement raccordé à un piston hydraulique (13) placé dans un vérin hydraulique (12), est introduit dans le vérin pneumatique (10).
  4. Dispositif conforme à la revendication 3,
    caractérisé en ce que
    la buse (16) comporte une gaine (17) dans laquelle est placé un premier labyrinthe (18), et éventuellement un deuxième labyrinthe (18'), tous deux en forme d'une ou de plusieurs pièces intercalaires, un premier canal (19) et, le cas échéant, un deuxième canal (19'), étant prévus dans ces labyrinthes.
  5. Dispositif conforme à la revendication 4,
    caractérisé en ce que
    le premier canal (19) et l'éventuel deuxième canal (19') sont conçus en forme de labyrinthes.
EP99112908A 1998-07-14 1999-07-05 Procédé et dispositif pour le refroidissement des tubes de canon Expired - Lifetime EP0973003B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH150498 1998-07-14
CH150498 1998-07-14

Publications (2)

Publication Number Publication Date
EP0973003A1 EP0973003A1 (fr) 2000-01-19
EP0973003B1 true EP0973003B1 (fr) 2002-09-18

Family

ID=4212000

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99112908A Expired - Lifetime EP0973003B1 (fr) 1998-07-14 1999-07-05 Procédé et dispositif pour le refroidissement des tubes de canon

Country Status (4)

Country Link
US (1) US6311602B1 (fr)
EP (1) EP0973003B1 (fr)
AT (1) ATE224528T1 (fr)
DE (1) DE59902717D1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9435600B2 (en) * 2013-10-15 2016-09-06 Oss Suppressors Llc Thermal mirage reduction accessory for firearms
US6889464B2 (en) 2003-06-04 2005-05-10 Michael K. Degerness Composite structural member
US20090049732A1 (en) * 2007-08-24 2009-02-26 Russell Dean Kissinger System and method for cooling the barrel of a firearm
RU2502933C1 (ru) * 2012-05-29 2013-12-27 Открытое акционерное общество "Ижевский механический завод" Способ получения заготовок под редуцирование стволов
US8677879B1 (en) 2012-06-01 2014-03-25 Jeff S. Gresham Firearm cooling device
US9933221B2 (en) * 2015-08-12 2018-04-03 Area 1 Sports, Llc Gun barrel cooler
CN109554531B (zh) * 2018-12-11 2020-06-02 攀枝花钢城集团有限公司 加热炉推钢机液压缸冷却装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2774281A (en) * 1945-09-19 1956-12-18 Purdue University Injector pump for breech cooling of guns
FR1112677A (fr) * 1952-07-08 1956-03-16 Perfectionnement aux armes à feu
US4062266A (en) * 1975-09-25 1977-12-13 Elmore Lester C Liquid propellant modular gun incorporating dual cam operation and internal water cooling
DE3145764C2 (de) * 1981-11-19 1983-12-29 Diehl GmbH & Co, 8500 Nürnberg Kühleinrichtung für Waffenrohre von Feuerwaffen
DE3868584D1 (de) * 1987-10-28 1992-04-02 Contraves Ag Einrichtung zum kuehlen der rohrinnenwand eines waffenrohres.
GB2222237A (en) * 1988-07-26 1990-02-28 Adrian Price Cooling of firearms
US5841057A (en) * 1997-10-09 1998-11-24 The United States Of America As Represented By The Secretary Of The Navy Method and apparatus for liquid injection to reduce gun barrel erosion

Also Published As

Publication number Publication date
DE59902717D1 (de) 2002-10-24
EP0973003A1 (fr) 2000-01-19
US6311602B1 (en) 2001-11-06
ATE224528T1 (de) 2002-10-15

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