EP1913327A1 - Arme et dispositif de refroidissement pour une arme - Google Patents

Arme et dispositif de refroidissement pour une arme

Info

Publication number
EP1913327A1
EP1913327A1 EP06791564A EP06791564A EP1913327A1 EP 1913327 A1 EP1913327 A1 EP 1913327A1 EP 06791564 A EP06791564 A EP 06791564A EP 06791564 A EP06791564 A EP 06791564A EP 1913327 A1 EP1913327 A1 EP 1913327A1
Authority
EP
European Patent Office
Prior art keywords
protection sleeve
cooling arrangement
heat protection
heat
weapon
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.)
Withdrawn
Application number
EP06791564A
Other languages
German (de)
English (en)
Inventor
Johannes Murello
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.)
Heckler und Koch GmbH
Original Assignee
Heckler und Koch 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 Heckler und Koch GmbH filed Critical Heckler und Koch GmbH
Publication of EP1913327A1 publication Critical patent/EP1913327A1/fr
Withdrawn legal-status Critical Current

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
    • F41A13/00—Cooling or heating systems; Blowing-through of gun barrels; Ventilating systems
    • F41A13/12—Systems for cooling the outer surface of the barrel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41C—SMALLARMS, e.g. PISTOLS, RIFLES; ACCESSORIES THEREFOR
    • F41C23/00—Butts; Butt plates; Stocks
    • F41C23/16—Forestocks; Handgrips; Hand guards

Definitions

  • the present invention relates to a cooling arrangement for a weapon with a fixing end, which in the
  • Cartridge storage area of a gun barrel or barrel with a weapon component can be coupled, and a weapon.
  • Information such as front, back, top, bottom, left and right refer to a gun held by the shooter and are given from his point of view.
  • barrel or gun barrel is to include below not only runs with trains and fields, but also smooth gun barrels.
  • the barrel In assault rifles, the barrel is usually fixed to a housing component, in the closure housing itself or to a so-called locking piece via a running nut, which is usually designed as a union nut.
  • a running nut is known for example from DE 1 129 401.
  • a running nut is known for example from DE 1 129 401.
  • this high thermal load causes in particular the chamber and the barrel itself are heated very strong. This changes the geometry of the barrel; it expands in the longitudinal and transverse direction. Hot components also affect the handling and function of the weapon. It can even come to the so-called "boiling" of the ammunition.
  • a cartridge located in the cartridge chamber on the hot gun tube so much energy is supplied that the propellant ignites uncontrollably and unintentionally release shots.
  • a metal tube surrounding the barrel which is approximately in the area of the cartridge chamber and on the outlet side - For example, on the holder of the grain - is set.
  • a pipe shields a surrounding hand guard against the heat given off by the barrel.
  • an air chamber located between the pipe and the weapon barrel isolates the pipe itself against the heat given off by the barrel.
  • Such an arrangement is also known from DE 1 129 401.
  • a surrounding the barrel insulating tube is known, which can be coupled with a mounting end either in the weapon housing or on the outside of the barrel and running in the direction of the muzzle forms a non-contact heat protection sleeve.
  • the barrel fixation in the weapon housing is independent of the insulating tube.
  • the object of the present invention is to provide a heat shield, which can be coupled with the weapon, without affecting their shot precision, and at the same time contributes to the running fixation.
  • the heat protection sleeve shields the barrel and prevents excessive heat load of a heat protection sleeve and running surrounding hand guard.
  • the attachment end of the cooling arrangement is designed as a running nut and connects the barrel with the weapon or with a weapon housing component, for example a locking piece.
  • the cooling arrangement leads heat out of the cartridge chamber via the running nut to the outside and over the heat protection sleeve to the front in the direction of the mouth.
  • the development according to claim 2 ensures a radially symmetrical shielding and heat dissipation. This prevents, for example, a sector of the gun barrel is cooled more or is heated more than another, so that caused by local heat differences in the pipe delay can be largely avoided.
  • the development according to claim 3 promotes the heat dissipation from the cooling arrangement itself and thus also from the cartridge storage area.
  • a version made of different materials can take into account different demands on the strength or on the thermal conductivity.
  • the attachment end of the cooling arrangement is a mechanically loaded component, while the heat protection sleeve in certain embodiments, especially thermal tasks (shielding, deriving).
  • the heat protection sleeve for example, from a lighter material than the attachment end of the cooling arrangement, which is made for example of steel, made (claim 4).
  • the cooling arrangement with the heat protection sleeve may also be integrally formed, either by mechanical or other suitable processing of a corresponding semi-finished product (eg pipe) or by welding heat protection sleeve and attachment end and subsequent processing of the complete cooling arrangement.
  • a corresponding semi-finished product eg pipe
  • the measures provided for in claim 6 openings in the heat protection sleeve can enhance the convection in the cavity between the heat protection sleeve and gun barrel and improve.
  • suitable elements include, in particular, longitudinal ribs, annular ribs, warts, knurls and / or other suitable surface structuring.
  • advantageous coatings can be provided.
  • the outer surface may be blackened to increase the heat radiation
  • the inner surface of the heat protection sleeve may be provided, for example, with a reflective coating to reduce the heat input of the heat radiation emitted from the tube (claim 9).
  • the heat removal from the cartridge storage area on the attachment end and the heat protection sleeve can be increased, while the heat dissipation from the pipe itself is largely on the running between heat protection sleeve and pipe and possibly flowing air layer.
  • the claims 10-11 relate to preferred geometric properties of the heat protection sleeve with respect to the barrel.
  • the claims 12-15 relate weapons with a cooling arrangement according to the invention, are selected in the advantageous interfaces between the cooling arrangement and other components of the corresponding weapon.
  • the heat protection sleeve may be surrounded by a hand guard, wherein in a weapon according to claim 14 between the outside of the heat protection sleeve and a hand guard, an insulating layer may be provided.
  • This insulating layer can be formed from an air envelope or an air layer, but it can also be provided as an insulating layer made of a suitable insulating material.
  • In the heat transfer area between gun barrel and the gun barrel receiving weapon component, as well as in the heat transfer area between the weapon component and the cooling arrangement may advantageously be designed contact surfaces. These promote the heat transfer between the respective components (claim 15).
  • corresponding to each other on the gun barrel and the receiving weapon component corresponding spline profiles are formed, which touch each other at their flanks and / or end faces heat-conducting. Between the weapon component and the nut suitable mutually corresponding threaded surfaces are provided.
  • FIG. 1 shows a longitudinal section through a front armature section with a cooling arrangement according to the invention
  • FIG. 3 shows the temperature profiles for the running nut variants from FIG. 2 at a measuring point located in the vicinity of the thermal protection sleeve end (mouth side),
  • Fig. 4 shows a longitudinal section (similar to FIG. 1) through a front weapon section with an alternative cooling arrangement according to the invention
  • Fig. 5 shows a longitudinal section through a front weapon section with another cooling arrangement.
  • FIG. 1 shows the front part of a weapon 1, in which the barrel 2 is fixed in the locking piece 6 via a cooling arrangement 4 becomes.
  • the locking piece 6 is in a
  • Molded plastic housing 8 and provided for better anchoring with ribs 10.
  • the barrel 2 is inserted with its cartridge end 18 in the locking piece 6, the correct angular position of the barrel is ensured by a transverse lock 20. Axially, the barrel 2 is fixed against a corresponding end face of the locking piece 6 via an outer collar 22 on which a corresponding inner collar 24 of the fastening end 26 of the cooling arrangement 4 rests. The fastening end 26 is screwed onto the locking piece 6 via a thread 28. And so far until the barrel 2 is clamped with its outer collar 22 axially between the locking piece 6 and the inner collar 24 of the mounting end 26 of the nut 4.
  • the heat protection sleeve 30 surrounds the barrel 4 in such a distance that a hand guard (not shown) can be arranged around the heat protection sleeve 30, which has a still manageable outer diameter. With a caliber of 5.56 mm and an outer diameter of about 16-18, the distance can be 2-10 mm. Between the inner side 32 of the heat protection sleeve 30 and the outer side 34 of the barrel 2 thus extends a cavity 36 which surrounds the barrel 2 in a cuff shape. This forwardly open cavity 36 allows the exchange of air therein with the environment. This air exchange can be reinforced by additional non-illustrated openings in the heat protection sleeve 30.
  • the outer side 38 of the heat protection sleeve 30 may be provided with surface enlarging elements for better heat dissipation. These may be longitudinal ribs, annular ribs, wart structures, knurls and / or other suitable surface textures (not shown). There are also embodiments in which the outer and / or the inner side 38, 32 of the heat protection sleeve 30 are coated in order to improve the thermal properties.
  • the inner side 32 is provided with a reflective coating and / or the outer side provided with a heat radiation-increasing coating.
  • suitable surface processing methods are considered, leading to similar results. For example, polishing, grinding, sandblasting or similar processes.
  • the heat protection sleeve 30 is made thinner than the attachment end 26.
  • a wall thickness of 0.5 to 4 mm in combination with the specified sleeve spacing has been found to be effective. Particularly favorable is a wall thickness of about 1-2 mm.
  • Fixing 26 and heat protection sleeve 30 here form integrally the cooling arrangement 4.
  • This is made of a steel material, which is adapted to absorb the high mechanical stresses required for fixing the barrel.
  • the heat protection sleeve 30 is made of a different material (eg a steel material with different thermal properties); the two components heat protection sleeve 30 and attachment ends 26 can then be welded together, for example. But it can also be other materials such as aluminum, ⁇
  • Copper, titanium can be used for the heat protection sleeve 30, which is then firmly connected to the fastening end 26 in other suitable manner (screwing, shrinking, Aufsintern, or the like).
  • a hand guard (not shown) is additionally provided around the heat protection sleeve 30, which additionally protects the shooter from burns.
  • the hand guard can for example be attached to the heat protection sleeve 30 by means of suitable devices without forces acting on the hand guard being able to impair the precision of the shot.
  • 30 may be provided between such a hand guard and the heat protection sleeve, an additional insulating layer. This may consist of an air layer or have an additional insulating layer of a suitable material.
  • the heat input is particularly high here by the charge ignition - can
  • Heat transfer-promoting contact surfaces may be formed, which are formed in the present embodiment as a splined shaft 40, which lie against each other at their front and / or flank surfaces.
  • Nut 4 is also a large heat transfer surface, in the form of thread 28 available. There are also
  • Heat conduction or the heat transfer between these elements is improved (thermal paste or the like).
  • a temperature sensor was mounted on the outside of the housing at the designated in Fig. 1 with MSl location and another in the front region of the heat protection sleeve 30 surrounding hand guard arranged (in Fig. 1 denoted by MS2).
  • the curves show the temperature profiles for different configurations of the cooling arrangement 4:
  • ⁇ • relates to a cooling device 4, in which the fixing end 26 is made of steel and the
  • Heat protection sleeve 30 made of a 3 mm thick
  • ⁇ 3 relates to a cooling arrangement 4, in which attachment ends 26 and heat protection sleeve 30 are made of steel, while the heat protection sleeve 30 has a wall thickness of 3 mm.
  • ⁇ relates to a cooling arrangement 4, in which the attachment end 26 and the heat protection sleeve 30 are made of steel, the heat protection sleeve 30 has a wall thickness of 1.5 mm.
  • the heat-insulating sleeve 30 has a wall thickness of 3 mm and is externally provided with a 0.5 mm thick ceramic coating.
  • ⁇ relates to a cooling arrangement 4, which is made entirely of titanium, wherein the heat protection sleeve 30 has a wall thickness of 3 mm.
  • the temperature curves at the measuring point 2 also show the favorable effect of the embodiment ⁇ , which shows a particularly favorable effect of the thin-walled version (1.5 mm) compared to the other embodiments.
  • FIG 4 shows an embodiment of the cooling arrangement 4, in which the thermal coupling to the chamber end 18 takes place via a thermally conductive housing 8 '.
  • the barrel 2 is inserted with its cartridge end 18 in a locking piece 6, which is arranged in the housing 8 '.
  • a thread 28 is screwed to the attachment end 26 on a corresponding coupling stub on the housing 8 '.
  • the heat transfer into the cooling arrangement 4 takes place from the inside to the outside radially through the cartridge end 18 'via the locking piece 6 through the housing 8' in the mounting end 26 of the cooling arrangement 4, from where the heat is dissipated axially forward through the heat protection sleeve 30.
  • heat coupling and running fixation are functionally separated from each other.
  • Housing 8 1 fixed.
  • Run 2 formed.
  • the cooling arrangement is over a
  • the cooling arrangement 4 is provided with a plurality of heat protection sleeves 30 arranged concentrically with one another.
  • the heat protection sleeves 30 are in such an embodiment of the attachment end 26 and extend in the direction of forward. Between the individual heat protection sleeves run gaps that are filled with air or can absorb insulating layers.
  • the individual sleeves may be provided with radial openings, in particular in the connection region to the attachment end 26, in order to improve the convection in air-filled spaces between the individual heat protection sleeves 30.
  • the heat protection sleeves 30 may be connected to each other for stabilization via webs or spacers.
  • Such a cooling arrangement 4 improves the shielding of a hand protection surrounding the outermost heat protection sleeve 30 against the heat emitted by the run 2. At the same time, several heat protection sleeves improve the heat transport from the cartridge storage area towards the gun mouth through the reinforced heat pipe.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Thermal Insulation (AREA)
  • Particle Accelerators (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Abstract

L'invention concerne un dispositif de refroidissement (4) comprenant une extrémité de fixation (26) pour le raccordement à un composant d'arme (6), notamment un élément de verrouillage. De l'extrémité de fixation (26) part un manchon calorifuge (30) qui s'étend en direction de la bouche et qui entoure le canon (2) sans le toucher de sorte qu'une cavité (36) ouverte du côté de la bouche est formée entre le canon (2) et le manchon calorifuge (30). L'invention concerne également une arme (1) munie d'un tel dispositif de refroidissement (4).
EP06791564A 2005-08-11 2006-08-07 Arme et dispositif de refroidissement pour une arme Withdrawn EP1913327A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005038133A DE102005038133B3 (de) 2005-08-11 2005-08-11 Waffe und Kühlanordnung für eine Waffe
PCT/EP2006/007795 WO2007017226A1 (fr) 2005-08-11 2006-08-07 Arme et dispositif de refroidissement pour une arme

Publications (1)

Publication Number Publication Date
EP1913327A1 true EP1913327A1 (fr) 2008-04-23

Family

ID=37165951

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06791564A Withdrawn EP1913327A1 (fr) 2005-08-11 2006-08-07 Arme et dispositif de refroidissement pour une arme

Country Status (6)

Country Link
EP (1) EP1913327A1 (fr)
KR (1) KR20080034451A (fr)
CA (1) CA2616472A1 (fr)
DE (1) DE102005038133B3 (fr)
WO (1) WO2007017226A1 (fr)
ZA (1) ZA200801347B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007053949A1 (de) 2007-11-09 2009-05-14 Rheinmetall Waffe Munition Gmbh Wärmeschutzhülle für ein Waffenrohr
USD923129S1 (en) 2017-06-08 2021-06-22 Springfield, Inc. Free floating handguard anchoring system
US10401122B2 (en) 2017-06-08 2019-09-03 Springfield, Inc. Free floating handguard anchoring system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL243148A (fr) * 1959-09-09
US3090150A (en) * 1960-06-13 1963-05-21 Fairchild Engine & Airplane Hand guard construction
DE1965146U (de) * 1967-03-20 1967-07-27 Josef Gustav Landmann Kuehlmantel fuer schnellfeuerschusswaffenlaeufe.
US3635123A (en) * 1969-04-07 1972-01-18 Gen Electric Bolt accelerator
FR2547040B1 (fr) * 1983-06-01 1987-08-21 France Etat Armement Fourreau isolant pour arme a feu
DE19904417C2 (de) * 1999-02-04 2002-01-03 Rheinmetall W & M Gmbh Waffenrohr

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007017226A1 *

Also Published As

Publication number Publication date
KR20080034451A (ko) 2008-04-21
DE102005038133B3 (de) 2007-05-03
WO2007017226A1 (fr) 2007-02-15
CA2616472A1 (fr) 2007-02-15
ZA200801347B (en) 2009-01-28

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