EP2058622A2 - Heat jacket for a gun barrel - Google Patents

Heat jacket for a gun barrel Download PDF

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Publication number
EP2058622A2
EP2058622A2 EP08017766A EP08017766A EP2058622A2 EP 2058622 A2 EP2058622 A2 EP 2058622A2 EP 08017766 A EP08017766 A EP 08017766A EP 08017766 A EP08017766 A EP 08017766A EP 2058622 A2 EP2058622 A2 EP 2058622A2
Authority
EP
European Patent Office
Prior art keywords
heat
metal shell
gun barrel
barrel
protection cover
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
EP08017766A
Other languages
German (de)
French (fr)
Other versions
EP2058622B1 (en
EP2058622A3 (en
Inventor
Eckehard Dr. Bohnsack
Gert Schlenkert
Alexander Tekin
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 Waffe Munition GmbH
Original Assignee
Rheinmetall Waffe Munition 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 Rheinmetall Waffe Munition GmbH filed Critical Rheinmetall Waffe Munition GmbH
Publication of EP2058622A2 publication Critical patent/EP2058622A2/en
Publication of EP2058622A3 publication Critical patent/EP2058622A3/en
Application granted granted Critical
Publication of EP2058622B1 publication Critical patent/EP2058622B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
    • F41A21/44—Insulation jackets; Protective jackets
    • 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

Definitions

  • the invention relates to a heat protection cover for a weapon barrel, in particular for a gun barrel, wherein the heat protection cover comprises a metal shell surrounding the weapon barrel.
  • Gun barrels especially long, slender cannon barrels, bend at temperature differences on the surface, resulting in a reduction in accuracy. Such temperature differences occur, for example, when the sun shines unilaterally on the cold weapon barrel or cold wind blows a warm pipe on one side.
  • the weapon barrel with a heat protective cover.
  • This consists essentially of a surrounding the weapon barrel at a small distance metal shell.
  • the static air layer between the tube and the metal shell serves as a heat insulator.
  • the invention has for its object to disclose a heat protection cover for weapons tubes, with a simple and cost-effective manner uneven heating of the surface of each weapon barrel is avoided within the heat protection cover.
  • the invention is based essentially on the idea of providing an additional, heat radiation region which is particularly reflective on the inner surface of the metal shell opposite the lower region of the weapon barrel, so that the temperature differences between the upper and lower sides of the weapon barrel are at least partially compensated for when the weapon barrel is heated become.
  • the pasted area of the pipe protection cover depends on various boundary conditions. Be particularly advantageous or sufficient has been found when the entire lower half of the pipe sleeve is glued.
  • the reflective films are plastic-laminated aluminum foils. Such films have good reflection properties in the infrared range as well as good adhesive, processing and environmental resistance properties.
  • a PVC lamination has proven itself. Also possible are polyethylene or polypropylene laminates, which have a low attenuation in the required IR range.
  • reflection foil gold and aluminum are favored, although other metals are possible.
  • a large-caliber gun barrel of a tank which is surrounded in a conventional manner by a heat protection cover 2.
  • the heat-insulating cover 2 comprises a metal shell 3 (for example made of aluminum) and a heat-reflecting reflecting film 4.
  • the reflection film 4 consists of a plastic-laminated aluminum foil, which is provided only on the underside 5 of the gun barrel 1 facing inner surface 6 of the metal shell 3 and bonded to the metal shell 3.
  • the gun barrel 1 begins, depending on the shot sequence, to heat.
  • the thereby emitted heat radiation (IR radiation) is partially reflected by the heat protection shell 2 and in turn reaches the outer surface of the gun barrel 1. Since more heat radiation is reflected by the reflection film 4 than from the remaining surface of the metal shell 3, a temperature compensation is performed by the Air convection caused lower heating of the bottom 5 of the gun barrel 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Laminated Bodies (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Toys (AREA)
  • Thermal Insulation (AREA)

Abstract

The thermal protective covering (2) has a metal covering (3) which surrounds a weapon pipe (1). An infrared light reflection foil (4) is connected with the metal covering at a lower side (5) of the weapon pipe. The lower side of the weapon pipe is facing an inner upper surface (6) of the metal covering. The protective covering acts with the reflection foil around plastic-covered aluminum foil or gold foil, and around a polyvinyl chloride, polyethylene or polypropylene lamination.

Description

Die Erfindung betrifft eine Wärmeschutzhülle für ein Waffenrohr, insbesondere für ein Kanonenrohr, wobei die Wärmeschutzhülle eine das Waffenrohr umgebende Metallhülle umfasst.The invention relates to a heat protection cover for a weapon barrel, in particular for a gun barrel, wherein the heat protection cover comprises a metal shell surrounding the weapon barrel.

Waffenrohre, insbesondere lange, schlanke Kanonenrohre, verbiegen sich bei Temperaturunterschieden an der Oberfläche, was zur Verminderung der Treffgenauigkeit führt. Derartige Temperaturunterschiede kommen beispielsweise dadurch zustande, dass die Sonne einseitig auf das kalte Waffenrohr scheint oder kalter Wind ein warmes Rohr einseitig anbläst.Gun barrels, especially long, slender cannon barrels, bend at temperature differences on the surface, resulting in a reduction in accuracy. Such temperature differences occur, for example, when the sun shines unilaterally on the cold weapon barrel or cold wind blows a warm pipe on one side.

Zur Vermeidung einer entsprechenden ungleichmäßigen Erwärmung des Waffenrohres ist es beispielsweise aus der DE-A-19 18 422 bekannt, das Waffenrohr mit einer Wärmeschutzhülle zu versehen. Diese besteht im Wesentlichen aus einer das Waffenrohr in geringem Abstand umgebenden Metallhülle. Dabei dient die ruhende Luftschicht zwischen dem Rohr und der Metallhülle als Wärmeisolator.To avoid a corresponding uneven heating of the gun barrel, it is for example from the DE-A-19 18 422 known to provide the weapon barrel with a heat protective cover. This consists essentially of a surrounding the weapon barrel at a small distance metal shell. The static air layer between the tube and the metal shell serves as a heat insulator.

Wie sich in der Praxis allerdings gezeigt hat, bildet sich bei einem warm geschossenen Waffenrohr zwischen der Rohroberfläche und der Metallhülle eine Luftkonvektion aus, die dazu führt, dass die Waffenrohrunterseite stärker abkühlt als die Rohroberseite. Diese Temperaturunterschiede führen zu einem nicht gewünschten Rohrverzug, der durch den die jeweilige Waffe bedienenden Richtschützen aufwendig kompensiert werden muss.However, as has been shown in practice, formed in a warm gun barrel between the pipe surface and the metal shell from an air convection, which causes the gun barrel underside cools more than the Rohroberseite. These differences in temperature lead to an unwanted tube distortion, which must be compensated by consuming the respective weapon gunners consuming.

Der Erfindung liegt die Aufgabe zugrunde, eine Wärmeschutzhülle für Waffenrohre zu offenbaren, mit der auf einfache und kostengünstige Weise eine ungleichmäßige Erwärmung der Oberfläche des jeweiligen Waffenrohres innerhalb der Wärmeschutzhülle vermieden wird.The invention has for its object to disclose a heat protection cover for weapons tubes, with a simple and cost-effective manner uneven heating of the surface of each weapon barrel is avoided within the heat protection cover.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst. Weitere, besonders vorteilhafte Ausgestaltungen der Erfindung offenbaren die Unteransprüche.This object is achieved by the features of claim 1. Further, particularly advantageous embodiments of the invention disclose the dependent claims.

Die Erfindung beruht im Wesentlichen auf dem Gedanken, an der dem unteren Bereich des Waffenrohres gegenüberliegenden inneren Oberfläche der Metallhülle einen zusätzlichen, Wärmestrahlen besonders gut reflektierenden Bereich vorzusehen, so dass bei Erwärmung des Waffenrohres die Temperaturunterschiede zwischen der Ober- und Unterseite des Waffenrohres mindestens teilweise kompensiert werden.The invention is based essentially on the idea of providing an additional, heat radiation region which is particularly reflective on the inner surface of the metal shell opposite the lower region of the weapon barrel, so that the temperature differences between the upper and lower sides of the weapon barrel are at least partially compensated for when the weapon barrel is heated become.

Hierzu wird auf der der Unterseite des Waffenrohres zugewandten inneren Oberfläche der Metallhülle eine mit der Metallhülle kraftschlüssig verbundene und Infrarotlicht gut reflektierende Reflexionsfolie angeordnet. Die Folie sollte bevorzugt einen Reflexionsgrad im IR- Bereich (schwarzer Strahler bei ca. 293K) von >/= 80% aufweisen.For this purpose, on the underside of the gun barrel facing inner surface of the metal shell arranged with a non-positively connected to the metal shell and infrared light reflecting reflective foil. The film should preferably have a reflectance in the IR range (black radiator at about 293K) of> / = 80%.

Der beklebte Bereich der Rohrschutzhülle hängt von diversen Randbedingungen ab. Als besonders vorteilhaft bzw. ausreichend hat sich ergeben, wenn die gesamte untere Hälfte der Rohrschutzhülle beklebt ist.The pasted area of the pipe protection cover depends on various boundary conditions. Be particularly advantageous or sufficient has been found when the entire lower half of the pipe sleeve is glued.

Bereits vorhandene Waffenrohre, welche mit herkömmlichen Wärmeschutzhüllen versehen sind, können auf einfache Weise umgerüstet werden. Hierzu ist es lediglich erforderlich, dass die Reflexionsfolien auf die jeweils untere Hälfte der vorhandenen Metallhüllen aufgeklebt werden.Existing weapon tubes, which are provided with conventional heat protection covers, can be easily converted. For this it is only necessary that the reflective films are glued to the respective lower half of the existing metal sheaths.

Als besonders vorteilhaft hat es sich erwiesen, wenn es sich bei den Reflexionsfolien um kunststoffkaschierte Aluminiumfolien handelt. Derartige Folien haben neben guten Reflexionseigenschaften im Infrarotbereich auch gute Klebe-, Verarbeitungs- und Umweltbeständigkeitseigenschaften. Bewährt hat sich eine PVC- Kaschierung. Möglich sind aber auch Polyethylen oder Polypropylenkaschierungen, die eine geringe Dämpfung im benötigten IR- Bereich besitzen.It has proved to be particularly advantageous if the reflective films are plastic-laminated aluminum foils. Such films have good reflection properties in the infrared range as well as good adhesive, processing and environmental resistance properties. A PVC lamination has proven itself. Also possible are polyethylene or polypropylene laminates, which have a low attenuation in the required IR range.

Als bevorzugte Materialien der Reflexionsfolie werden Gold und Aluminium favorisiert, wobei auch andere Metalle möglich sind.As preferred materials of the reflection foil gold and aluminum are favored, although other metals are possible.

Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus den folgenden, anhand von Figuren erläuterten Ausführungsbeispielen. Es zeigen:

Fig.1
den Längsschnitt eines Teilbereiches eines Kanonenrohres mit erfindungsgemäßer Wärmeschutzhülle,
Fig.2
einen Querschnitt durch die in Fig.1 dargestellte Anordnung entlang der dort mit II-II bezeichneten Schnittlinie.
Further details and advantages of the invention will become apparent from the following, with reference to figures explained embodiments. Show it:
Fig.1
the longitudinal section of a portion of a gun barrel with inventive heat protection cover,
Fig.2
a cross section through the in Fig.1 shown arrangement along the there designated II-II cutting line.

In den Fig.1 und 2 ist mit 1 ein großkalibriges Kanonenrohr eines Panzers bezeichnet, welches in an sich bekannter Weise von einer Wärmeschutzhülle 2 umgeben ist. Die Wärmeschutzhülle 2 umfasst eine Metallhülle 3 (z.B. aus Aluminium) und eine Wärmestrahlen gut reflektierende Reflexionsfolie 4.In the Fig.1 and 2 is denoted by 1 a large-caliber gun barrel of a tank, which is surrounded in a conventional manner by a heat protection cover 2. The heat-insulating cover 2 comprises a metal shell 3 (for example made of aluminum) and a heat-reflecting reflecting film 4.

Die Reflexionsfolie 4 besteht aus einer kunststoffkaschierten Aluminiumfolie, die lediglich auf der der Unterseite 5 des Kanonenrohres 1 zugewandten inneren Oberfläche 6 der Metallhülle 3 vorgesehen und mit der Metallhülle 3 verklebt ist.The reflection film 4 consists of a plastic-laminated aluminum foil, which is provided only on the underside 5 of the gun barrel 1 facing inner surface 6 of the metal shell 3 and bonded to the metal shell 3.

Wird nun das Kanonenrohr 1 bestimmungsgemäß verwendet, so beginnt es sich, in Abhängigkeit von der Schussfolge, zu erwärmen. Die dabei abgegebene Wärmestrahlung (IR-Strahlung) wird von der Wärmeschutzhülle 2 teilweise reflektiert und gelangt wiederum zur äußeren Oberfläche des Kanonenrohres 1. Da von der Reflexionsfolie 4 mehr Wärmestrahlung reflektiert wird als von der restlichen Oberfläche der Metallhülle 3, erfolgt eine Temperaturkompensation der durch die Luftkonvektion bedingten geringeren Erwärmung der Unterseite 5 des Kanonenrohres 1.Now, if the gun barrel 1 is used as intended, it begins, depending on the shot sequence, to heat. The thereby emitted heat radiation (IR radiation) is partially reflected by the heat protection shell 2 and in turn reaches the outer surface of the gun barrel 1. Since more heat radiation is reflected by the reflection film 4 than from the remaining surface of the metal shell 3, a temperature compensation is performed by the Air convection caused lower heating of the bottom 5 of the gun barrel 1.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Waffenrohr, KanonenrohrGun barrel, cannon barrel
22
WärmeschutzhülleHeat protective cover
33
Metallhüllemetal shell
44
Reflexionsfoliereflective tape
55
Unterseitebottom
66
innere Oberflächeinner surface

Claims (5)

Wärmeschutzhülle für ein Waffenrohr (1), insbesondere für ein Kanonenrohr, wobei die Wärmeschutzhülle (2) eine das Waffenrohr (1) umgebende Metallhülle (3) umfasst, dadurch gekennzeichnet, dass auf der der Unterseite (5) des Waffenrohres (1) zugewandten inneren Oberfläche (6) der Metallhülle (3) eine mit der Metallhülle (3) kraftschlüssig verbundene und Infrarotlicht gut reflektierende Reflexionsfolie (4) angeordnet ist.Heat protection cover for a weapon barrel (1), in particular for a gun barrel, wherein the heat protection cover (2) comprises a metal shell (3) surrounding the weapon barrel (1), characterized in that on the inner side facing the underside (5) of the weapon barrel (1) Surface (6) of the metal shell (3) with the metal shell (3) non-positively connected and infrared light well reflecting reflection film (4) is arranged. Wärmeschutzhülle nach Anspruch 1, dadurch gekennzeichnet, dass es sich bei der Reflexionsfolie (4) um eine kunststoffkaschierte Aluminiumfolie oder Goldfolie handelt.Heat protection cover according to claim 1, characterized in that it is the reflection film (4) is a plastic-laminated aluminum foil or gold foil. Wärmeschutzhülle nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Folie (4) bevorzugt einen Reflexionsgrad im IR- Bereich (schwarzer Strahler bei ca. 293K) von >/= 80% aufweist.Heat-insulating sleeve according to claim 1 or 2, characterized in that the film (4) preferably has a reflectance in the IR range (black radiator at about 293K) of> / = 80%. Wärmeschutzhülle nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass es sich bei der Kaschierung um eine PVC- Kaschierung, Polyethylen oder Polypropylenkaschierung handelt.Heat-insulating cover according to one of claims 1 to 3, characterized in that it is the lamination of a PVC lamination, polyethylene or polypropylene lamination. Wärmeschutzhülle nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass beklebte Bereich der Schutzhülle (2) von diversen Randbedingungen abhängt, wobei es vorteilhaft bzw. ausreichend ist, wenn die gesamte untere Hälfte der Schutzhülle (2) beklebt ist.Heat-insulating sheath according to one of claims 1 to 4, characterized in that pasted area of the protective cover (2) depends on various boundary conditions, and it is advantageous or sufficient if the entire lower half of the protective cover (2) is glued.
EP08017766.0A 2007-11-09 2008-10-10 Heat jacket for a gun barrel Active EP2058622B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007053949A DE102007053949A1 (en) 2007-11-09 2007-11-09 Heat protection cover for a weapon barrel

Publications (3)

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EP2058622A2 true EP2058622A2 (en) 2009-05-13
EP2058622A3 EP2058622A3 (en) 2012-03-07
EP2058622B1 EP2058622B1 (en) 2013-05-15

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EP08017766.0A Active EP2058622B1 (en) 2007-11-09 2008-10-10 Heat jacket for a gun barrel

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US (1) US8347773B2 (en)
EP (1) EP2058622B1 (en)
DE (1) DE102007053949A1 (en)
IL (1) IL195153A (en)

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US9435600B2 (en) * 2013-10-15 2016-09-06 Oss Suppressors Llc Thermal mirage reduction accessory for firearms
US8245618B2 (en) * 2009-12-23 2012-08-21 German Sport Guns Gmbh Barrel jacket for a firearm
US8397615B2 (en) * 2010-01-16 2013-03-19 Dale Avery Poling Thermally-insulating cover for firearm sound suppressor
US9086253B2 (en) * 2012-08-30 2015-07-21 Tyco Electronics Corporation Powered rail system for a weapon
WO2014087401A1 (en) * 2012-12-09 2014-06-12 D.G.L. Us Ltd. Thermal protecting shroud
US10024619B2 (en) * 2014-09-16 2018-07-17 Gian Almazan Temperature reduction protective wrap
USD767073S1 (en) 2015-01-28 2016-09-20 Jamak Fabrication-Tex, Llc Firearm suppressor cover
USD769395S1 (en) 2015-01-28 2016-10-18 Jamak Fabrication-Tex, Llc Firearm suppressor cover
USD767072S1 (en) 2015-01-28 2016-09-20 Jamak Fabrication-Tex, Llc Firearm suppressor cover
US9677845B2 (en) * 2015-04-02 2017-06-13 Lancer Systems L.P. Firearm handguard having heat-reducing features
USD779618S1 (en) 2015-07-31 2017-02-21 Jamak Fabrication-Tex, Llc Firearm suppressor cover
USD778386S1 (en) 2015-07-31 2017-02-07 Jamak Fabrication-Tex, Llc Firearm suppressor cover
USD778387S1 (en) 2015-07-31 2017-02-07 Jamak Fabrication-Tex, Llc Firearm suppressor cover
US20190271520A1 (en) * 2015-12-01 2019-09-05 Magpul Industries Corp. Suppressor cover assembly and method
USD788873S1 (en) 2016-01-18 2017-06-06 Jamak Fabrication-Tex Llc Firearm suppressor sleeve
US10365061B1 (en) * 2016-12-29 2019-07-30 Aaron E. Painter Firearm barrel with non-metal outer sleeve
US10809032B1 (en) * 2017-11-16 2020-10-20 Lockheed Martin Corporation Lightweight, durable, high-temperature sustaining sound suppressor device for automatic-fire small arms
USD833565S1 (en) * 2017-12-27 2018-11-13 Magpul Industries Corp. Suppressor cover
US11022396B2 (en) * 2019-08-18 2021-06-01 Superior Harmonics LLC Rifle barrel vibration dampener and method of use
RU2739263C1 (en) * 2020-02-10 2020-12-22 Федеральное государственное казенное военное образовательное учреждение высшего образования "Михайловская военная артиллерийская академия" Министерства обороны Российской Федерации Method of self-propelled artillery-type weapon preparation for firing

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Also Published As

Publication number Publication date
IL195153A0 (en) 2009-08-03
DE102007053949A1 (en) 2009-05-14
US20110100204A1 (en) 2011-05-05
EP2058622B1 (en) 2013-05-15
IL195153A (en) 2013-12-31
EP2058622A3 (en) 2012-03-07
US8347773B2 (en) 2013-01-08

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