WO2007139446A1 - Dispositif de refroidissement à air du canon d'une arme - Google Patents

Dispositif de refroidissement à air du canon d'une arme Download PDF

Info

Publication number
WO2007139446A1
WO2007139446A1 PCT/RU2007/000264 RU2007000264W WO2007139446A1 WO 2007139446 A1 WO2007139446 A1 WO 2007139446A1 RU 2007000264 W RU2007000264 W RU 2007000264W WO 2007139446 A1 WO2007139446 A1 WO 2007139446A1
Authority
WO
WIPO (PCT)
Prior art keywords
barrel
muzzle
casing
air
diameter
Prior art date
Application number
PCT/RU2007/000264
Other languages
English (en)
Russian (ru)
Inventor
Valery Adamovich Kovalchuk
Roman Petrovich Bodrov
Sergey Adamovich Kovalchuk
Original Assignee
Valery Adamovich Kovalchuk
Roman Petrovich Bodrov
Sergey Adamovich Kovalchuk
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 Valery Adamovich Kovalchuk, Roman Petrovich Bodrov, Sergey Adamovich Kovalchuk filed Critical Valery Adamovich Kovalchuk
Publication of WO2007139446A1 publication Critical patent/WO2007139446A1/fr

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
    • 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
    • F41A13/10—Blowers or turbines for evacuating or cooling guns, e.g. driven by combustion gas pressure or recoil

Definitions

  • the invention relates to firearms and equipment and is aimed at ensuring the survivability of the barrel of an automatic weapon, mainly firing in long bursts
  • the device provides continuous blowing and a long time blowing the barrel when firing, however, the design is difficult to manufacture and adjust.
  • the present invention solves the problem of increasing the survivability of the barrel and weapons as a whole with the simplicity and efficiency of the design of the device for cooling the barrel.
  • the problem is solved in that in the device for forced cooling of the barrel, made in the form of a casing covering the barrel with a narrowing in the muzzle region to a diameter not less than the diameter of the bullet, and with subsequent expansion behind the muzzle section, the casing near the muzzle section is mounted on the barrel by means of ribs, and an axial turbine is installed on the side of the ribs facing away from the muzzle end. Through holes are made through holes with increasing diameters away from the muzzle.
  • the barrel cooling method implemented in the inventive device is based on the Bernoulli effect, which consists in the fact that with an increase in the gas flow rate, the pressure in it decreases, and a decrease in pressure leads to the absorption of air from the environment through the openings in the casing. Since the inner part of the casing has a certain resistance to the air moving inside, with holes of equal diameter in the part of the casing, more remote from the muzzle, the air flow is weaker. The uniformity of the air flow inside the casing is ensured by the increase in the diameter of the holes in the casing as they move away from the muzzle.
  • the invention is illustrated by the description and the attached drawings, which shows a General view of the air cooling device mounted on the barrel.
  • the device comprises a barrel 1, on which, through a support in the form of ribs 2, a casing 3 is installed, made with a smooth narrowing in the region of the muzzle section to a diameter no smaller than the diameter of the bullet, and then expanding beyond the muzzle section.
  • Through holes 4 are made on the surface of the casing, the diameter of which increases as the hole is indented from the muzzle end line.
  • An axial turbine 5 is installed near the support of the casing. The device operates as follows.
  • powder gases moving in the casing with high speed create rarefaction in the region of the casing openings, facilitating the absorption of air from the environment, which takes heat from the barrel, through the casing.
  • the flow rate of powder gases increases due to a decrease in the diameter of the casing in the muzzle region.
  • the flow tells it to rotate, which enhances the suction effect. Improving the cooling efficiency of the barrel increases the resource of weapons and accuracy.
  • the invention can be used in the design of automatic small arms, mainly firing in long bursts.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

L'invention concerne des armes à feu et accessoires et est destinée à assurer la durabilité du canon d'une arme automatique qui tire de préférence en longues rafales. Le dispositif de refroidissement à air du canon (1) se présente comme une gaine (3) enveloppant le canon qui comporte un rétrécissement au niveau de la gueule du canon jusqu'à un diamètre égal ou supérieur au diamètre de la balle et qui comporte un évasement au-delà de la gueule du canon. A proximité de la gueule du canon la gaine est montée sur le canon au moyen de nervures (2). Du côté des nervures qui est opposé à la gueule du canon on a monté une turbine axiale. On a réalisé à la surface de la gaine des trous traversants (4) dont le diamètre s'élargit du côté opposé à la gueule du canon. L'invention permet d'assurer une meilleure durabilité du canon et de l'arme en général.
PCT/RU2007/000264 2006-05-26 2007-05-24 Dispositif de refroidissement à air du canon d'une arme WO2007139446A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2006118098/02A RU2312292C1 (ru) 2006-05-26 2006-05-26 Ствол огнестрельного оружия с устройством воздушного охлаждения
RU2006118098 2006-05-26

Publications (1)

Publication Number Publication Date
WO2007139446A1 true WO2007139446A1 (fr) 2007-12-06

Family

ID=38778867

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2007/000264 WO2007139446A1 (fr) 2006-05-26 2007-05-24 Dispositif de refroidissement à air du canon d'une arme

Country Status (2)

Country Link
RU (1) RU2312292C1 (fr)
WO (1) WO2007139446A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2466339C1 (ru) * 2011-05-13 2012-11-10 Учреждение Российской академии наук Институт прикладной механики Уральского отделения РАН Устройство охлаждения артиллерийских и стрелковых стволов

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE487228C (de) * 1926-05-29 1929-12-04 Rheinische Metallw & Maschf Kuehlvorrichtung fuer Schusswaffenlaeufe, insbesondere von Maschinengewehren
FR1157227A (fr) * 1956-08-10 1958-05-28 Hispano Suiza Sa Perfectionnements apportés aux armes automatiques, notamment à celles de petit calibre
RU2089813C1 (ru) * 1993-11-04 1997-09-10 Центральный научно-исследовательский институт точного машиностроения Ствол автоматического оружия

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE487228C (de) * 1926-05-29 1929-12-04 Rheinische Metallw & Maschf Kuehlvorrichtung fuer Schusswaffenlaeufe, insbesondere von Maschinengewehren
FR1157227A (fr) * 1956-08-10 1958-05-28 Hispano Suiza Sa Perfectionnements apportés aux armes automatiques, notamment à celles de petit calibre
RU2089813C1 (ru) * 1993-11-04 1997-09-10 Центральный научно-исследовательский институт точного машиностроения Ствол автоматического оружия

Also Published As

Publication number Publication date
RU2312292C1 (ru) 2007-12-10

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