EP3411653A1 - Module d'absorption d'une onde sonore et dispositif le comprenant - Google Patents
Module d'absorption d'une onde sonore et dispositif le comprenantInfo
- Publication number
- EP3411653A1 EP3411653A1 EP16813006.0A EP16813006A EP3411653A1 EP 3411653 A1 EP3411653 A1 EP 3411653A1 EP 16813006 A EP16813006 A EP 16813006A EP 3411653 A1 EP3411653 A1 EP 3411653A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- absorption
- sound wave
- module
- central duct
- 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
Links
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 76
- 239000012530 fluid Substances 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 4
- 229920002457 flexible plastic Polymers 0.000 claims description 3
- 239000004816 latex Substances 0.000 claims description 3
- 229920000126 latex Polymers 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 238000013016 damping Methods 0.000 claims description 2
- 239000006260 foam Substances 0.000 claims description 2
- 239000006096 absorbing agent Substances 0.000 description 3
- 238000005474 detonation Methods 0.000 description 3
- 239000002324 mouth wash Substances 0.000 description 3
- 229940051866 mouthwash Drugs 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 241000219122 Cucurbita Species 0.000 description 2
- 235000009852 Cucurbita pepo Nutrition 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011490 mineral wool Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
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
- F41A21/30—Silencers
-
- 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
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/161—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general in systems with fluid flow
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/172—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects
Definitions
- the invention relates to an absorption module of a sound wave, and a device comprising it as a silencer.
- the projectile In the case of handguns or cannons, the projectile, whether a bullet or a shell, coming out of the barrel of the weapon produces a sound wave, called a mouthwash, forming the detonation.
- This muzzle wave is a wave of air pressure produced by the projectile that pushes the air out of the barrel: when the air thus pushed out of the barrel end, it relaxes suddenly and creates this detonation. It is possible to decompose this mouth wave as a sum of Diracs of variable wavelengths. Indeed, the mouthwave is an instantaneous phenomenon, without continuity, whose amplitude is very high for a very short time, then disappears.
- the muzzle wave is dependent on the dimensions and shapes of the projectile head pushing the air out of the barrel.
- it is necessary to optimally absorb the maximum of sound wavelengths forming the mouth wave thus generated.
- a sound wave such as a mouthwash
- a housing extending at a distance and facing the central duct coaxially, and an absorption chamber defined in part by the central duct and the housing.
- THE absorption chamber then comprises a sound wave damper such as air (the device then forms a simple hollow cylinder), or a flexible material such as rock wool or any other foam-type material, or a shock absorber solid like a stack of metallic sound baffles like slightly domed metal washers.
- a sound wave damper such as air (the device then forms a simple hollow cylinder), or a flexible material such as rock wool or any other foam-type material, or a shock absorber solid like a stack of metallic sound baffles like slightly domed metal washers.
- An object of the invention is to provide a module, and therefore a device for absorbing a sound wave that is simple to use, adaptable while being lightweight and compact.
- a sound wave absorption module comprising a perforated central duct in which a sound wave is intended to propagate, a casing extending at a distance and facing the centrally coaxial duct, an absorption chamber delimited in part by the central duct and the casing, and an elastically deformable pocket positioned in the absorption chamber so as to surround at least part of the central duct, the pocket containing a absorption fluid.
- the elastically removable deformable pouch is compact and can be filled before use with a fluid such as water from a gourd. This also allows an on-the-fly adaptation of the absorption module.
- the module according to the invention is simple to use, adaptable while being lightweight and compact
- the absorption module according to the invention has at least one of the following additional technical characteristics:
- the fluid is a liquid, in particular water
- the central duct has a wall comprising through openings so as to put in fluid communication the absorption chamber and the central duct;
- the wall is at least partly formed by a net with a rigid mesh
- the bag is made of flexible plastic material
- the pocket is made of latex or silicone.
- a device for absorbing a sound wave comprising a gun in which a sound wave is intended to propagate, and an absorption module for a sound wave having at least one sound wave.
- the central duct forming the barrel.
- the absorption device according to the invention has at least one of the following additional technical characteristics: the device comprises a series of absorption modules of a sound wave abutting each other; others so that the barrel is formed of a succession of central ducts of the modules;
- the absorption modules have different dimensions, in particular of different lengths and / or diameters;
- Each absorption module comprises, in the absorption chamber, a damping element selected from a foam damper, a solid damper and a fluid damper.
- FIG. 1 is a schematic three-dimensional view of an absorption module of a sound wave according to the invention
- FIG. 2 is a schematic sectional view along II-II of the module of Figure 1;
- FIG. 3 is a side view of a sound wave absorption device according to the invention comprising a module according to Figures 1 and 2.
- the absorption module of a sound wave 1 according to the invention is of cylindrical general shape, here of revolution. It comprises an outer housing 10 having a first end 11 and a second end 12. The housing 10 delimits externally an absorption chamber 40.
- the absorption chamber is internally delimited by a central perforated conduit 20.
- the central conduit 20 is delimited by a wall 21.
- the wall 21 has through holes for establishing fluid communication between the central duct 20 and the absorption chamber 40.
- a diameter of the central duct 20 is greater, slightly, than that of a barrel on which it is installed.
- the openings of the central duct 20 made by the through orifices of the wall 21 allow the passage of the mouthwave, generated during the expulsion of the projectile from the barrel, in the absorption chamber 40.
- the wall 21 is partly achieved by a net with a rigid mesh like a grid.
- the absorption module of a sound wave 1 comprises a pocket 30 elastically deformable.
- This pocket 30 is removably positioned in the absorption chamber 40 so as to surround all or part of the central duct 20.
- the pocket 30 is, prior to its positioning within the absorption chamber 40, filled with a fluid 31.
- the fluid 31 is a liquid fluid having a viscosity adapted to the mouthwave to be absorbed.
- the fluid 31 is water.
- a user of the absorption module of a sound wave 1 according to the invention can use the water of its gourd or a water point nearby (puddle, river, lake, ...) .
- the pocket 30 is made of flexible plastic material such as a plastic bag for example.
- the pocket 30 is made of silicone or latex.
- the pocket 30 is a condom.
- the pocket 30 is thus easily transportable and compact.
- the user refills the bag 30 with a fluid 31. Then, he introduces the bag thus filled into the absorption chamber 40. one 12 of the ends 11,12 of the housing 10 which is open, the other end 11 being closed.
- a closure cover (not shown) can be positioned on the open end 11 of the housing 10.
- the absorption module of a sound wave 1 according to the invention is then ready to be positioned on a gun.
- Such a structure of the absorption module of a sound wave 1 according to the invention makes it possible to use a more or less viscous liquid as a shock absorber for sound waves.
- the liquids have a strong absorption of the energy of the sound waves.
- the structure of the absorption module of a sound wave 1 according to the invention has the advantage of being simple, easily adaptable to the mouthwave to be absorbed, and therefore space-saving.
- a device for absorbing a sound wave according to the invention 100 comprises a single absorption module of a sound wave 1 according to the invention.
- the absorption device of a sound wave according to the invention 100 comprises a gun 120 which is formed by the central duct 20 of the absorption module of a sound wave 1 according to the invention.
- the device for absorbing a sound wave according to the invention 100 comprises a series of absorption modules 1, 2, 3, 4 abutting one another so that the barrel 120 is formed of a succession of central ducts absorption modules of a sound wave.
- the series of modules absorption comprises four absorption modules 1,2,3,4 including an absorption module of a sound wave 1 according to the invention.
- the absorption module of a sound wave 1 according to the invention has a length 14 and an external diameter d4.
- the second absorption module 2 has a length 11 and an outer diameter d1.
- the third absorption module 3 has a length 12 and an external diameter d2.
- the fourth absorption module 3 has a length 13 and an external diameter d3.
- the lengths 11, 12, 13 and 14, as well as the diameters d1, d2, d3 and d4 may be different from each other.
- each of the absorption modules comprises a casing and a central duct both delimiting an absorption chamber.
- the absorption chamber of each of the absorption modules comprises a damper of a sound wave.
- the damper of a sound wave is independently selected for each of the absorption modules from:
- a solid shock absorber known per se as a stack of metallic sound baffles such as slightly rounded metal washers;
- a flexible damper comprising a flexible material such as rock wool or any other foam-type material, known in itself.
- the number and order of assembly of the absorption modules to form the absorption device of a sound wave according to the invention 100 is not limited to the example given in FIG.
- Such modularity in the types and dimensions of absorption modules and / or the number of absorption modules assembled to form the absorption device of a sound wave according to the invention 100 makes it possible to optimally obtain an absorption (or attenuation) maximum of the muzzle wave generated by a given projectile for a given ejection speed.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Aviation & Aerospace Engineering (AREA)
- Combustion & Propulsion (AREA)
- Fluid Mechanics (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1650796A FR3047347B1 (fr) | 2016-02-02 | 2016-02-02 | Module d'absorption d'une onde sonore et dispositif le comprenant |
PCT/FR2016/053055 WO2017134354A1 (fr) | 2016-02-02 | 2016-11-22 | Module d'absorption d'une onde sonore et dispositif le comprenant |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3411653A1 true EP3411653A1 (fr) | 2018-12-12 |
EP3411653B1 EP3411653B1 (fr) | 2019-11-20 |
Family
ID=55486962
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16813006.0A Not-in-force EP3411653B1 (fr) | 2016-02-02 | 2016-11-22 | Module d'absorption d'une onde sonore et dispositif le comprenant |
Country Status (5)
Country | Link |
---|---|
US (1) | US20190041154A1 (fr) |
EP (1) | EP3411653B1 (fr) |
ES (1) | ES2760937T3 (fr) |
FR (1) | FR3047347B1 (fr) |
WO (1) | WO2017134354A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10907920B2 (en) * | 2017-08-22 | 2021-02-02 | Incodema3D, LLC | Sound suppressor for a firearm |
US12117116B2 (en) * | 2019-04-23 | 2024-10-15 | Georgia Tech Research Corporation | Systems and methods for a fluid noise suppressor |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2101849A (en) * | 1936-10-29 | 1937-12-14 | Samuel G Green | Muzzle attachment for guns |
US2935912A (en) * | 1950-10-11 | 1960-05-10 | Olin Mathieson | Erosion-and-corrosion-resistant gun barrel adapted to hold a coolant |
DE2060751C3 (de) * | 1970-12-10 | 1973-11-08 | Mannesmann& Keppel Electronics, 5630 Remscheid | Flüssigkeitsmengenregler |
SE428604B (sv) * | 1981-10-21 | 1983-07-11 | Foerenade Fabriksverken | Tryckdempare for rekylfria vapen |
US5136923A (en) * | 1982-07-30 | 1992-08-11 | Walsh Donald J Jun | Firearm silencer and flash attenuator |
EP0107273B1 (fr) * | 1982-07-30 | 1987-11-19 | Jr Donald J. Walsh | Silencieux et cache-flammes pour armes à feu |
DE3300499A1 (de) * | 1983-01-08 | 1984-07-12 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München | Schalldaempfer fuer von fluessigkeiten durchstroemte wege |
US4753154A (en) * | 1984-05-10 | 1988-06-28 | Fuji Electric Corporate Research And Development Ltd. | Gun barrel for tank |
FR2789760B1 (fr) * | 1999-02-16 | 2001-12-07 | Tda Armements Sas | Dispositif anti-recul avec frein, compensateur du frein et recuperateur |
NO311593B1 (no) * | 2000-02-15 | 2001-12-10 | Dueland Bent Arild | Lyddemper for skytevåpen |
SE525566C2 (sv) * | 2003-02-28 | 2005-03-08 | Opus Akustik Ab | Förfarande och anordning för bullerdämpning |
US7587969B2 (en) * | 2005-08-26 | 2009-09-15 | Robert Silvers | Asymmetric firearm silencer with coaxial elements |
AT502653B1 (de) * | 2005-09-15 | 2007-05-15 | Gaston Glock | Schalldämpfer |
FR2920219A1 (fr) * | 2007-08-20 | 2009-02-27 | Jtekt Europ Soc Par Actions Si | Dispositif de reduction des bruyances et coups de belier dans des circuits hydrauliques |
US8245618B2 (en) * | 2009-12-23 | 2012-08-21 | German Sport Guns Gmbh | Barrel jacket for a firearm |
US8286750B1 (en) * | 2010-02-11 | 2012-10-16 | O.S.S. Holdings, LLC | Energy capture and control device |
US8950310B2 (en) * | 2012-05-22 | 2015-02-10 | Storrs Investments, L.L.C. | Firearm suppressor and injector assembly |
US8807005B2 (en) * | 2012-08-10 | 2014-08-19 | Lawrence Livermore National Security, Llc | Firearm suppressor having enhanced thermal management for rapid heat dissipation |
US9982959B2 (en) * | 2013-03-15 | 2018-05-29 | Centre Firearms Co., Inc. | Monolithic noise suppression device for firearm |
-
2016
- 2016-02-02 FR FR1650796A patent/FR3047347B1/fr not_active Expired - Fee Related
- 2016-11-22 ES ES16813006T patent/ES2760937T3/es active Active
- 2016-11-22 US US16/074,590 patent/US20190041154A1/en not_active Abandoned
- 2016-11-22 EP EP16813006.0A patent/EP3411653B1/fr not_active Not-in-force
- 2016-11-22 WO PCT/FR2016/053055 patent/WO2017134354A1/fr active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2017134354A1 (fr) | 2017-08-10 |
FR3047347A1 (fr) | 2017-08-04 |
FR3047347B1 (fr) | 2018-02-02 |
US20190041154A1 (en) | 2019-02-07 |
EP3411653B1 (fr) | 2019-11-20 |
ES2760937T3 (es) | 2020-05-18 |
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