EP0723131B1 - Frein de bouche pour canons de moyen ou de gros calibre - Google Patents

Frein de bouche pour canons de moyen ou de gros calibre Download PDF

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Publication number
EP0723131B1
EP0723131B1 EP96400088A EP96400088A EP0723131B1 EP 0723131 B1 EP0723131 B1 EP 0723131B1 EP 96400088 A EP96400088 A EP 96400088A EP 96400088 A EP96400088 A EP 96400088A EP 0723131 B1 EP0723131 B1 EP 0723131B1
Authority
EP
European Patent Office
Prior art keywords
barrel
muzzle brake
brake according
axis
tubular component
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
EP96400088A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0723131A1 (fr
Inventor
Francis Ledys
Nicolas Brunet
Régis Dupuy
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.)
Giat Industries SA
Original Assignee
Giat Industries SA
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9475214&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0723131(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Giat Industries SA filed Critical Giat Industries SA
Publication of EP0723131A1 publication Critical patent/EP0723131A1/fr
Application granted granted Critical
Publication of EP0723131B1 publication Critical patent/EP0723131B1/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
    • F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
    • F41A21/32—Muzzle attachments or glands
    • F41A21/36—Muzzle attachments or glands for recoil reduction ; Stabilisators; Compensators, e.g. for muzzle climb prevention

Definitions

  • the scope of the present invention is that of muzzle brakes for medium guns or large caliber mounted on a carriage or a turret and in especially those firing under-calibrated projectiles.
  • the object of the present invention is to provide a high energy efficiency muzzle brake, limited mass and capable of firing sub-calibrated projectiles without passing on any disturbance.
  • the invention therefore relates to a muzzle brake for medium or large caliber cannon having a body whose internal dimensions are much greater than the caliber of the barrel, provided with at least one stage of two openings extended by blades on which apply the propellant gases to create a force of direction opposite to that generated by these gases, characterized in that it comprises a tubular element extending the free end of the barrel engaged in the body of the muzzle brake, pierced with a plurality of vents which direct the propellant gases towards the blades, the internal diameter d1 of this element being comprised substantially between the caliber d2 of the barrel and the diameter d3 of the barrel stripe.
  • the internal wall of the tubular element is smooth, and its internal diameter d1 is equal to the caliber d2 of the barrel.
  • the internal wall of the tubular element is smooth and its internal diameter d1 is equal to the diameter d3 of the barrel stripe.
  • the wall internal of the tubular element is provided with scratches identical to those of the cannon.
  • the vents have a cylindrical internal profile of diameter between 10 and 20 mm and inclined at an angle ⁇ 1 relative to the axis of the barrel, substantially equal to the inclination ⁇ 2 of the internal wall of the body with respect to said axis of the barrel.
  • the vents have a large ovoid internal profile axis substantially between 15 and 40 mm and small axis between 10 and 15 mm, inclined at an angle ⁇ 3 by relative to the axis of the barrel, substantially equal to the inclination ⁇ 2 of the internal wall of the brake body of mouth relative to the axis of said barrel.
  • the vents have a cylindrical profile diameter substantially between 10 and 20 mm opening on the internal side of the tubular element, and a frustoconical profile opening on the external side of said tubular element with an angle of inclination ⁇ 4 by relative to the axis of the barrel substantially equal to the inclination ⁇ 2 of the internal wall of the body with respect to said axis of the barrel.
  • the tubular element is presented under the shape of a shirt thickness between 5 and 10 mm made of steel with an elastic limit of approximately 1,000 MPa.
  • the shirt is centered on the axis of the barrel through guide surfaces at the ends cooperating with reception ranges on the inner wall of the body.
  • the tubular element is immobilized relative to the body muzzle brake by a blocking means consisting of example by a key.
  • the tubular element is oriented and immobilized in rotation relative to the barrel by a key screwed into the muzzle brake body cooperating with a groove made in the tubular element and another groove practiced in the barrel.
  • the tubular element is immobilized in translation by relation to the cannon using two shoulders one at the front end of said element and the other at the front part of the muzzle brake body, shims adjustment being possibly housed between these two shoulders.
  • the tubular element and the body of the brake mouth can be made in one piece from a molding outline for example.
  • the barrel and the tubular element do not form only one piece.
  • a first advantage of the following muzzle brake the invention lies in its energy efficiency important and therefore in the possibility offered to the system weapon to fire high energy ammunition.
  • Another advantage of this muzzle brake is ability to fire an under-calibrated projectile without interfere with each other.
  • Another advantage of the invention lies in the offering a low mass muzzle brake facilitating the pointing of the weapon.
  • FIG. 1 represents an embodiment of the invention of a muzzle brake, known as a single stage, is to say having only one row of blades and commonly called “tulip” muzzle brake.
  • This brake mouth 20 consists of a cylindrical part 21 linked to barrel tube 30 by a threaded connection 8 braked by a lock nut system 9 and oriented in a known manner by a key (not shown) relative to the barrel 30 and a body 22 provided with blades 22b on which come rely on propellant gases to generate a force of opposite direction to that generated by the firing of the ammunition, 22nd gills to relax these propellant gases and eject them outwards and from an outlet projectile 22f.
  • the internal part of the body is composed of divergent frustoconical part 22a followed by a part converging 22b forming the blades and a surface 22c substantially perpendicular to the axis YY 'of the barrel, the divergent part 22a and convergent part 22b are connected by a curved surface 22d.
  • the outer surface 22h of the body 22 is substantially parallel to the surfaces internal of said body.
  • a 22g reinforcement forming a beam is placed at the front of said body.
  • the internal shape of the muzzle brake 20 allows it to have a high energy efficiency, of the order of 50 at 60%, this being the ratio of the recoil energy of the barrel with and without muzzle brake.
  • the jacket 5 is centered relative to the barrel 30 and to the muzzle brake 20 via the ranges 6a, 6b of the jacket 5 cooperating with the bearing surfaces 7a, 7b practiced in the internal wall of the body 22 and by through the scope 6d of the cooperating shirt 5 with the range 7d practiced in the barrel 30.
  • the jacket 5 is also positioned axially without clearance between the muzzle brake 20 and the barrel 30 by the bias of the 6th face of the shirt 5 cooperating with the front edge 31 of the barrel on the one hand, and through the face 6c of the jacket 5 cooperating with the face 7c of the body 22 and shims 11 whose value is determined on the other hand.
  • the jacket 5 is immobilized in rotation by muzzle brake 20 via a key 25 engaged in a groove 27 of said brake mouth and cooperating with a groove 51 made in the shirt 5.
  • This key 25 is linked to the muzzle brake 20 by means of a screw 26 cooperating with said key and a tapping 28 made in the brake mouth 20.
  • a chamfer 29 produced on the internal face of the jacket 5 on the side in contact with the barrel 30 facilitates the passage of the shoe of the ammunition in said shirt.
  • the jacket 5 has an average thickness of 5 to 10 mm and is made of a material having a limit elastic of about 1000 MPa.
  • the jacket 5 is pierced with vents 54, which open into the internal volume of the body 22, in the form cylindrical whose angle ⁇ 1 with respect to the axis YY 'of barrel 30 is substantially equal to the angle ⁇ 2 of the wall 22a of the body 22 relative to said axis YY '.
  • the diameter vents 54 is between 10 and 20 mm.
  • the number vents 54 should be as large as possible to let most of the propellant gases pass, but ensuring that the distance d4 between said is sufficient to withstand pressure from propellant gases.
  • the shoes of the sub-calibrated projectile remain linked to the core during their passage through the muzzle brake 20 thanks to the jacket 5 which is of the same diameter d2 or d3 as the barrel 30.
  • the shoes freely detach from the core at the outlet of the muzzle brake 20, thus producing no parasitic effect on the core or damage to the muzzle brake 20.
  • the propellant gases are directed by the vents 54 towards the blades 22b to generate a force. of opposite direction to that induced by the shooting.
  • FIG. 2 shows a muzzle brake according to the invention identical to the embodiment shown in Figure 1, but the jacket 5 is not smooth and has stripes 40 identical to those of barrel 30 and the extending. In this case, it is necessary to orient said shirt so that the continuity of the stripes of the barrel 30 and liner 5 is ensured.
  • a key 25 carried by the muzzle brake 20 cooperates with a groove 51 practiced for part 51a in canon 30 precisely positioned with respect to scratches of said barrel and for the other part 51b in the folder 5 precisely positioned in relation to the scratches of said shirt.
  • This key 25 is linked to the brake mouth 20 by means of a screw 26 cooperating with said key and a tapping 28 practiced in the muzzle brake 20.
  • This configuration makes it possible to maintain the rotation of the projectile during its passage in the brake mouth 20 which gives it a better stabilization on trajectory.
  • FIG. 3 illustrates an alternative embodiment vents 54.
  • These have an internal profile opening into the internal volume of the body 22, in the form ovoid whose major axis is parallel to the axis of the barrel YY 'and inclined at an angle ⁇ 3 relative to the axis of the barrel YY 'substantially equal to the angle ⁇ 2 of the internal wall 22a of the body 22 relative to said axis YY '.
  • the major axis is between 15 and 40 mm and the small axis is between 10 and 15 mm.
  • the number of vents 54 should be as large as possible to let pass most of the propellants but in ensuring that the minimum distance d4 between said is sufficient to withstand pressure from propellant gases.
  • Figure 4 illustrates another variant of realization of the vents 54. These are ovoid in shape and their major axis is perpendicular to the axis of the barrel YY 'and inclined at an angle ⁇ 3 with respect to the YY' axis of the barrel substantially equal to the angle ⁇ 2 of the internal wall 22a of the body 22 relative to said axis YY '.
  • the major axis is between 15 and 40 mm and the minor axis is between 10 and 15 mm.
  • vents 54 must be the largest possible to let most of the propellants but making sure that the distance minimum d4 between said vents is sufficient to withstand the pressure of propellant gases.
  • Figure 5 illustrates another variant of realization of the vents 54 having a profile cylindrical 54a of diameter substantially between 10 and 20 mm opening on the internal side of the jacket 5 followed of a frustoconical profile 54b opening on the external side of said jacket in the internal volume of the body 22.
  • the angle of inclination ⁇ 4 relative to the axis YY 'of the barrel 30 of the frustoconical part 54b is substantially equal to the inclination ⁇ 2 of the internal wall 22a of the body 22 by report to said axis YY '.
  • the number of vents 54 must be as large as possible to let the largest part of the propellants, but making sure that the distance d4 between said vents is sufficient to withstand the pressure of propellant gases.
  • This alternative embodiment of the vents 54 has the advantage of being more easily manufactured industrially.
  • Figure 6 shows an alternative embodiment the muzzle brake according to the invention in which the muzzle brake 20 and the tubular element 5 do not form more than one piece that can come from a rough molding for example.
  • This achievement turns out particularly economical, because it does not require the positioning of a jacket 5 relative to the brake mouth 20 and relative to the barrel 30.
  • Figure 7 shows a variant of the brake mouth according to the invention in which the element tubular 5 is part of the same part as the barrel 30.
  • the muzzle brake is oriented relative to the barrel 30 in a known manner by a key not shown, but of the type of that described in relation to Figure 1.
  • the axial clearance between the tubular element 5 and the brake mouth 20 is canceled through the face 6c of the tubular element 5 cooperating with the face 7c of the body 22 and with adjustment shims 11 whose value is determined during assembly.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Braking Arrangements (AREA)
EP96400088A 1995-01-18 1996-01-15 Frein de bouche pour canons de moyen ou de gros calibre Expired - Lifetime EP0723131B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9500492A FR2729464A1 (fr) 1995-01-18 1995-01-18 Frein de bouche pour canons de moyen ou de gros calibre
FR9500492 1995-01-18

Publications (2)

Publication Number Publication Date
EP0723131A1 EP0723131A1 (fr) 1996-07-24
EP0723131B1 true EP0723131B1 (fr) 1999-09-08

Family

ID=9475214

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96400088A Expired - Lifetime EP0723131B1 (fr) 1995-01-18 1996-01-15 Frein de bouche pour canons de moyen ou de gros calibre

Country Status (5)

Country Link
US (1) US5675107A (enrdf_load_stackoverflow)
EP (1) EP0723131B1 (enrdf_load_stackoverflow)
DE (1) DE69604097T2 (enrdf_load_stackoverflow)
FR (1) FR2729464A1 (enrdf_load_stackoverflow)
ZA (1) ZA96353B (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007024515A1 (de) 2007-05-24 2008-11-27 Rheinmetall Waffe Munition Gmbh Vorrichtung und Verfahren zur Befestigung einer Mündungsbremse an einem Waffenrohr
WO2011137976A1 (de) 2010-05-06 2011-11-10 Rheinmetall Waffe Munition Gmbh Signaturreduzierte mündungsbremse

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL125989A (en) 1998-08-30 2004-07-25 Moshe Eizenman Apertured barrel extension for weapons for preventing raising of dust
US6339992B1 (en) * 1999-03-11 2002-01-22 Rocktek Limited Small charge blasting apparatus including device for sealing pressurized fluids in holes
FR2794229B1 (fr) * 1999-05-27 2002-05-17 Giat Ind Sa Dispositif de fixation d'un frein de bouche sur le tube d'une arme
RU2151994C1 (ru) * 1999-05-31 2000-06-27 Силаков Валерий Андреевич Ствольная насадка к многоствольному оружию
USD435884S1 (en) 2000-07-07 2001-01-02 Dye Products, Inc. Paintball gun barrel muzzle
RU2216703C2 (ru) * 2000-08-10 2003-11-20 3 Центральный научно-исследовательский институт Министерства обороны Российской Федерации Устройство для уменьшения избыточного давления при выстреле и стабилизации ствола огнестрельного оружия
SG116420A1 (en) 2001-07-19 2005-11-28 Ordnance Dev & Engineering Co Blast diffuser.
RU2191965C1 (ru) * 2001-08-21 2002-10-27 Кузнецов Александр Константинович Устройство для торможения отдачи стрелкового оружия
RU2228504C1 (ru) * 2003-01-30 2004-05-10 Государственное учреждение "Российский научно-исследовательский институт импульсных тепловых машин" Министерства образования РФ Надульное устройство тмт-2
RU2253817C1 (ru) * 2004-02-16 2005-06-10 Кузнецов Александр Константинович Устройство для торможения отдачи стрелкового оружия
RU2266507C1 (ru) * 2004-03-30 2005-12-20 Открытое акционерное общество "Завод им. В.А. Дегтярёва" Дульный тормоз
FR2870331B1 (fr) * 2004-05-17 2006-06-30 Giat Ind Sa Frein de bouche pour arme
RU2278341C2 (ru) * 2005-03-15 2006-06-20 Александр Владимирович Глухов Глушитель
RU2279622C1 (ru) * 2005-04-05 2006-07-10 Игорь Фёдорович Усов Устройство для снижения отдачи и шума при стрельбе из оружия с нарезными стволами
US20100269387A1 (en) * 2006-02-28 2010-10-28 Cornell Drajan Muzzle Break
US7895787B1 (en) * 2008-01-11 2011-03-01 Andry Mark L Porting feature for firearm
AU2013240588A1 (en) * 2012-01-06 2014-08-21 Ra Brands, L.L.C. Cancellation muzzle brake assembly
USD694355S1 (en) * 2012-08-20 2013-11-26 Karl Hormann Muzzle brake
US9593900B2 (en) * 2013-11-19 2017-03-14 Stephen Paul Vossler Muzzle brake
US9207034B2 (en) * 2014-01-08 2015-12-08 Rock River Arms, Inc. Muzzle brake for firearm
US9541345B2 (en) 2014-03-18 2017-01-10 Steven H. Schwartzkopf Recoil and muzzle blast controller for firearms
US9417024B2 (en) * 2014-09-25 2016-08-16 Spike's Tactical, Llc Asymmetric muzzle compensator for firearm
US10274278B2 (en) * 2015-01-16 2019-04-30 Surefire, Llc Firearm attachment
US9689636B2 (en) * 2015-02-03 2017-06-27 Edward Rigor Randall Recoil reducing muzzle brake
US10466004B2 (en) * 2015-08-11 2019-11-05 Drew Nolle Walker Optimized flow compensator
US9903678B2 (en) * 2015-08-26 2018-02-27 John SHERRILL Method of manufacturing a diffuser muzzle brake
US10816300B2 (en) 2016-03-10 2020-10-27 James Norman Griffitts Barrel stabilizing and recoil reducing muzzle brake
US11280572B2 (en) 2016-03-10 2022-03-22 James Norman Griffitts Barrel stabilizing and recoil reducing muzzle brake with guiding ribs
US10422603B2 (en) 2016-03-10 2019-09-24 James Norman Griffitts Barrel stabilizing and recoil reducing muzzle brake
EP3583374A4 (en) * 2017-02-15 2021-01-06 James Norman Griffitts RECOIL REDUCTION AND GUN TUBE STABILIZATION BARREL MOUTH BRAKE
US10801797B2 (en) * 2017-10-11 2020-10-13 Justin Peijay Cheng Muzzle device
US10809033B2 (en) 2017-11-29 2020-10-20 Michael P. Tindal Firearm compensator
WO2021021900A1 (en) 2019-07-29 2021-02-04 Sturm, Ruger & Company, Inc. Ported barrel system for firearms
US12163750B2 (en) 2021-02-12 2024-12-10 James Norman Griffitts Sound suppressor with adapter for use with muzzle accessory
US20250093119A1 (en) * 2023-09-20 2025-03-20 Michael Arthur Green, Jr. Firearm and a method for reducing firearm barrel rise

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US1363058A (en) * 1921-02-10 1920-12-21 T F Shanahn Car construction
FR715769A (fr) * 1930-04-26 1931-12-09 Anciens Ets Skoda Frein pour orifice de bouche à feu
FR772162A (fr) * 1934-04-20 1934-10-24 Bofors Ab Frein de bouche pour tubes de canon
FR812680A (fr) * 1936-01-21 1937-05-14 Brev Etudes Soc Nouveaux perfectionnements aux armes à feu ou autres
US3141376A (en) * 1955-06-13 1964-07-21 George M Chinn Flame-out eliminator
US3492912A (en) * 1966-09-01 1970-02-03 Ashbrook Clifford L Recoil controlling device
US4307652A (en) * 1979-11-02 1981-12-29 Leonard Witt Muzzle-guard for firearms
FR2507765B1 (fr) * 1981-06-16 1986-03-21 France Etat Procede et dispositif de tir d'une munition fleche a l'aide d'un tube raye
US4545285A (en) * 1982-06-15 1985-10-08 Mclain Clifford E Matched expansion muzzle brake
DE4025546C2 (de) * 1990-08-11 2002-03-14 Rheinmetall W & M Gmbh Mündungsbremse für eine großkalibrige Rohrwaffe
US5333529A (en) * 1993-01-08 1994-08-02 Rott & Company Convertible muzzle brake

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007024515A1 (de) 2007-05-24 2008-11-27 Rheinmetall Waffe Munition Gmbh Vorrichtung und Verfahren zur Befestigung einer Mündungsbremse an einem Waffenrohr
WO2011137976A1 (de) 2010-05-06 2011-11-10 Rheinmetall Waffe Munition Gmbh Signaturreduzierte mündungsbremse
DE102010019358A1 (de) 2010-05-06 2011-11-10 Rheinmetall Waffe Munition Gmbh Signaturreduzierte Mündungsbremse

Also Published As

Publication number Publication date
DE69604097D1 (de) 1999-10-14
EP0723131A1 (fr) 1996-07-24
ZA96353B (en) 1997-01-03
FR2729464B1 (enrdf_load_stackoverflow) 1997-03-07
FR2729464A1 (fr) 1996-07-19
DE69604097T2 (de) 2000-01-20
US5675107A (en) 1997-10-07

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