WO2018015301A1 - Dispositif neutralisateur de son pour arme à feu - Google Patents
Dispositif neutralisateur de son pour arme à feu Download PDFInfo
- Publication number
- WO2018015301A1 WO2018015301A1 PCT/EP2017/067873 EP2017067873W WO2018015301A1 WO 2018015301 A1 WO2018015301 A1 WO 2018015301A1 EP 2017067873 W EP2017067873 W EP 2017067873W WO 2018015301 A1 WO2018015301 A1 WO 2018015301A1
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- WO
- WIPO (PCT)
- Prior art keywords
- barrel
- sound
- flaps
- firearm
- control mechanism
- 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.)
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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
- F41A21/30—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
- F41A21/28—Gas-expansion chambers; Barrels provided with gas-relieving ports
Definitions
- the present invention relates to a firearm neutralizing device, particularly for a rifle or other long or short firearm, and a method of neutralizing sound for a firearm.
- the present invention more specifically relates to a sound neutraliser for a firearm, such as a rifle or another long or short firearm.
- the invention proposes a method of neutralizing the sound for a firearm, in particular for a rifle or another firearm when a shot is fired.
- the invention proposes a firearm, in particular a rifle, comprising an improved sound neutralizing device.
- the publication WO 96/03612 discloses a sound moderating device for Bail Trap rifle or recreation guns superimposed calibres.
- This gun silencer consists of a tubular body mounted on the barrel of the gun and comprising an annular expansion chamber behind said tubular body, and a series of transverse internal baffles supported by spacers and provided with openings passing through lead shot and wad.
- the silencer is designed to dampen noise and reduce noise pollution.
- WO 201 1/0351 1 1 A1 disclose other examples of firearm silencers, in particular for automatic rifles or other long firearms, comprising a silencer mounting on the barrel of the weapon, a muzzle brake, which can be connected by screwing to the silencer, being fixed on the barrel.
- a conventional sound suppressor or moderator is a device that can be added to a firearm, gas or air, to reduce the noise and the flash of light it produces when a shot is fired, thereby gaining discretion .
- the silencer generally takes the form of a cylindrical tube that can adapt to the muzzle of the barrel, and whose internal mechanism, which varies according to the ammunition used, allows to relax the gases used to propel the barrel. projectile, so as to minimize their release into the atmosphere.
- the silencer only slows the gas at the exit of the barrel, it does not interfere with the noise caused by the passage of the projectile at supersonic speed (speed higher than that of the sound which is about 340 m / s in the air at 15 ° C) which, passing the wall of sound, produces itself a sound of detonation on its course.
- the phenomenon is especially noticeable on high initial velocity calibres such as 5.56 mm.
- a muffler is especially a comfort tool because it reduces the muzzle wave of a gun.
- This mouth wave is the cause of ENT trauma, in the area of the nose, throat and ears, that can not be protected by the usual means (ear plugs, helmets ). It should be noted that the two main factors affecting the value of the speed of sound are the density and the elasticity constant (or compressibility) of the propagation medium:
- the propagation of sound is all the more rapid as the density of the medium and its compressibility are small. From one medium to another, the two parameters change.
- helium whose compressibility is approximately equal to that of air, but whose density is, under the same conditions of temperature and pressure, much lower, the speed of sound is almost three times higher great than in the air.
- speed of sound is much lower than in a liquid: although the density of the gas is much lower, it is almost infinitely more compressible than the liquid (which is often considered incompressible) .
- the sound propagates exactly at 1,482,343 m / s in pure water at 20 ° C, approximately 340 m / s in air at 15 ° C and at about 1,500 m / s in water sea.
- the effectiveness of silencers is relative: the sound reducer suppresses the mouthwave and consequently the detonation consistent and makes the sound more diffuse while removing the flame to the mouth of the weapon.
- moderator of sound is sometimes used; the performance of this type of device is highly variable, depending on the type of reducer of his employee and the weapon used. Shooting is not as far away, it is also harder to identify as a firearm shot as well as more difficult to locate because of both the deformation of the sound and the absence of a visible flame.
- the decrease in the intensity of the noise is of the order of 25 to 35 db in the case of an assault rifle, ie 1 to 125 db (comparable to a jackhammer) instead of 150 db.
- the diameter of the holes separating the different elements of the silencer through which the projectiles pass being much larger than the caliber, they allow to escape towards the front of the projectile a part of the gas thus disturbing the accuracy of the projectile and decreasing its speed. about 4 to 6 m / s.
- the projectile passing the different baffles allows the gases behind it to relax in the cells and thereby reduce the intensity of the sound wave.
- noise reduction noise is a function of the size of the chambers (cells).
- the noise normally produced by a gun detonation is in the range of 120 to 170 db.
- a sudden noise or prolonged exposure to a sound environment too high can cause temporary or permanent impairment of hearing.
- the purpose of the device is to inhibit the sound wave (noise) generated by the ammunition of a firearm.
- the sound neutralizing device for a firearm comprises the characteristics of the characterizing part of claim 1. More particularly, for this purpose, according to the invention, this object is achieved by the fact that a sound-canceling device of the aforementioned type comprises:
- an actuating unit having at least one opening in the gun barrel upstream of the closure flaps to form a gas outlet setting a control mechanism in motion;
- the control mechanism comprising at least two amplitude lever arms pivotally mounted on pivots attached to the barrel, each amplitude lever arm being coupled to one or the other of the closing flaps, -
- the actuating unit cooperating with the control mechanism to allow transverse movement of the closure flaps between an open position in which the flaps ensure the passage of a projectile to the muzzle of the barrel and a closed position preventing the passage of flue gas and sound wave after passing the projectile, and
- An exhaust unit comprising at least one exhaust pipe disposed on the barrel upstream of the closure flaps to redirect and let the combustion gases and the sound wave out of the barrel.
- closing flaps temporarily closes the barrel just after the passage of the projectile and redirects the combustion gases and the sound wave to an expansion tank for its final treatment.
- the actuating unit comprises an activation piston disposed in a cylinder fixed to the barrel and extended by a rod, the gas intake made in the barrel setting in motion the piston extended by the rod in a direction generally parallel to the axis of the barrel.
- the control mechanism comprises a guide ring and transmission adapted to slide on the barrel, the ring cooperating with the piston rod to transmit the movement to the lever arms.
- the closure flaps are arranged in a seat placed transversely to the axis of the barrel and are of predetermined length and slightly offset between them along the axis of the barrel, so that in the closed position they partially overlap without clashing. .
- each flap comprises an opening adapted to receive the end of the amplitude lever arm to transmit the pivoting movement of the amplitude lever and actuate the flap in a transverse direction relative to the axis.
- the guide ring further comprises two wedge-shaped support pieces having an angled edge surface directed towards the flaps adapted to enable actuation lever arms pivoting on the pivots and closing flaps.
- control mechanism comprises at least a first return spring associated with the guide ring so that it returns to its initial position, the pressure of the lowering gases, and at least one second associated return spring. respectively to each of the lever arms so that the lever arms and the flaps back to their original position, the pressure of the gas decreasing.
- the lever lever recoil springs can be removed by adding a side guide to the controls, which, when backing up, bring the arms back to their original positions.
- the actuating unit comprises a first and a second opening in the barrel, the second opening forming a clutch valve actuated by gas intake to allow the coupling of the stem of the piston to the control mechanism.
- the actuating unit comprises an activation piston disposed in a cylinder fixed to the barrel and extended by a rod directly connected to the direct contact control mechanism, the gas intake made in the cannon putting the piston extended by the rod directly in motion in a direction generally parallel to the axis of the barrel.
- the actuating unit comprises a return spring interposed between the barrel and an activation piston extended by a rod to allow the piston rod to return to its initial position, the pressure decreasing in the gas intake.
- control mechanism comprises double amplitude lever arms for actuating the flaps, and a guide ring that actuates two first amplitude lever arms pivotally mounted on pivots attached to gun, each of the first two amplitude lever arms being coupled to a second amplitude lever arm pivotally mounted on another pin attached to the gun to actuate the second amplitude lever arm associated, each of the two second amplitude lever arms being coupled to one of the closure flaps.
- control mechanism is positioned either upstream of the closure flaps or downstream of the closure flaps.
- the exhaust unit further comprises an expansion vessel connected to said at least one exhaust pipe for receiving the gases conveyed by said at least one exhaust pipe, the vessel expansion chamber with openings to allow the combustion gases to escape from the expansion vessel
- the expansion vessel comprises an inner tube connected to flaps adapted to close the openings, and in which the gases enter the expansion vessel through an opening in the inner tube once it has been pushed. at the end of the race and thus closed gills and, with the pressure down, the inner tube returns to its initial position thanks to a return spring thus leaving the combustion gases escape from the expansion vessel through the gills when the sound wave has run out naturally.
- a second pair of independent flaps of the first is located at the outlet of the cartridge chamber, and can be placed on automatic or semi-automatic weapons; these shutters mechanically actuated by the own device for ejecting / reloading the weapon are used to prevent the combustion gases, the sound wave and the flash to come out of the breech open during the ejection of the socket.
- This variant using a second pair of shutters for automatic or semi-automatic weapons can be used by itself for simple modification of a weapon without resorting to the sound inhibitor which, it requires at least the replacement or modification of the barrel.
- the sound neutralizing device for a firearm in particular for a rifle or another long or short firearm, comprises: at least one closure flap mounted transversely to the axis on the barrel of a firearm to temporarily seal the barrel after the passage of a munition and preventing the passage of the combustion gases and the sound wave towards the mouth of the barrel when a blow is fired, an actuating unit comprising at least one opening made in the barrel of the firearm upstream of the closing flap to form a gas outlet setting in motion a control mechanism; the control mechanism comprising at least one amplitude lever arm pivotally mounted on a pivot fixed to the barrel, the amplitude lever arm being coupled to the closure flap, the actuating unit cooperating with the control mechanism to allow transverse movement of the closure flap between an open position in which the flap ensures the passage of a munition towards the mouth of the barrel and a closed position preventing the passage of the combustion gases and the sound wave after the passage of the ammunition, and an exhaust unit comprising at least one exhaust pipe disposed on the barrel upstream of the
- the invention proposes a long or short firearm, in particular a rifle, comprising a neutralizing device of the aforementioned type in which the firearm barrel comprises a fastening system formed by said pivots and a seat disposed transversely to the axis of the barrel receiving said closure flaps to fix the neutralizing device to the barrel removably.
- the invention proposes a method of neutralizing the sound for a firearm, in particular for a rifle or another firearm when a shot is fired, the method comprising the steps of:
- control mechanism comprising at least two amplitude lever arms pivotally mounted on pivots attached to the barrel, each amplitude lever arm being coupled to one or the other of the closing flaps,
- Sound waves during a shot There are in principle 3 sound waves that are generated by a shot. Two occur inside the barrel, and the last outside.
- the first sound wave is that produced by the combustion of the explosive charge.
- the second is the famous “bang” produced by the projectile when crossing the sound barrier, which is the case for about 96% of ammunition. This "bang" occurring inside the barrel, is not certain but supposed, but it is certain however that it never intervenes outside the barrel. In the human ear, these two sound waves are perceived as a single sound.
- the third occurs at the exit of the barrel projectile, like a whiplash in the air. It has an intensity of 72 to 80 db and can in no way be controlled.
- the burning of the powder gives off an immediate heat of 2500 to 3000 degrees Celsius, as well as 2 - 2.5 grams of gas which, uncompressed, gives a volume of approximately 1 .12 m3.
- the sound wave produced by the combustion and the bang moves (at this temperature) to about 1500-1800m / s, immediate speed, while the projectile is still in phase of acceleration, this one not reaching its speed maximum after about 60 cm of stroke.
- the sound wave has three properties that interest us: the first is that, when it encounters an obstacle, it bounces (echo phenomenon), the second is that it does not spread in the empty, and the third and more interesting for the sound neutralizing device of the present invention is that it has an ephemeral life.
- the sound wave does not stick to the projectile. In striking it bounces back to the breech which in turn sends it back to the projectile. It then follows incessant comings and goings between these two obstacles until the exit of the projectile by the muzzle of the gun, with a variable speed, dependent on the temperature of the medium in which it evolves and that of the gases which convey it . At the exit of the barrel the sound wave then propagates in the air. While a conventional muffler of the aforementioned type, also called sound moderator, strives to mechanically reduce the latter, the sound inhibitor of the present invention, by retaining the sound a very short instant inside the barrel, let it run out naturally and get rid of it completely. In addition, the firearm sound suppressing device of the present invention has the advantage of weight (about 50 grams in total), cost of manufacture, and efficiency.
- the sound wave produced inside the barrel is completely annihilated, because retained behind the flaps.
- the tiny part of the gases found at moment of closing shutters, in front of them between these and the base of the projectile gradually relax in the space between the flaps and the mouth of the barrel is an average distance of about ten cm where they also encounter an air vacuum caused by suction by the projectile. There remains only the noise produced by the sound wave generated outside the barrel.
- the firearm sound suppressing device of the present invention allows the sound wave to naturally destroy itself and deals primarily with the pressure generated by the gases. If there was no escapement provided by an exhaust pipe the gases would remain compressed inside the barrel keeping the shutters closed. They would relax only at the opening of the rifle, without danger but with some inconvenience. Although on an automatic or semi-automatic weapon they would go out by the breech, according to the invention, it was considered preferable to increase, by one or two exhaust pipes the internal volume of the barrel. This extra volume lowers the throttle pressure and lets the flaps open by the return spring system and lets the gases naturally escape to the forward direction and through the end of the exhaust temporarily closed by shutters of similar size to those placed on the barrel. The pressure drop of gas inside the barrel is also caused by their rapid cooling.
- FIG. 1 illustrates a sound neutralizing device for a firearm in one embodiment of the invention
- FIG. 2 represents a partial side view of the device as represented in FIG. 1;
- FIG. 3A shows a partial side view of a firearm neutralizing device in another embodiment of the invention
- FIG. 3B represents a partial side view of a sound neutralization device similar to FIG. 3A in another embodiment of the invention
- FIG. 4 represents a side view of a sound neutralizing device for a firearm in another embodiment of the invention
- FIG. 5 represents a partial side view of the device as represented in FIG. 4;
- FIG. 6 represents a partial side view of a sound neutralizing device for a firearm in another embodiment of the invention
- FIG. 7 is a partial side view of a gun sound neutralizer in another embodiment of the invention.
- FIG. 8 represents a side view of an exhaust unit of the sound neutralization device for a firearm in one embodiment of the invention.
- Figure 1 illustrates a sound neutralizing device for a firearm in an embodiment of the invention.
- two shutters (10) for closing are mounted transversely to the axis on the barrel of the weapon to temporarily seal the barrel after the passage of a projectile and to prevent the passage of gases. of combustion and the sound wave towards the mouth of the cannon when a shot is fired.
- the actuating unit (1 -5) has a first opening (1) in the barrel upstream of the closure flaps (10) to form a gas inlet (1) and the control mechanism (6-9 ) moving.
- the control mechanism (6-9) comprises two amplitude lever arms (8) mounted on pivots (7) to allow transverse movement of the two shutters (10) between an open position in which the flaps (10) ) ensure the passage of a projectile towards the mouth of the barrel and a closed position preventing the passage of the combustion gases and the sound wave after the passage of the projectile.
- the exhaust unit (1 1) comprises two exhaust pipes (1 1) disposed upstream of the shutters (10) to redirect and allow the combustion gases and the sound wave to escape from the barrel.
- the rod (2) of the piston is positioned in a direction generally parallel to the axis of the barrel defining the direction of the projectile.
- the control piston with the rod (2) is associated with return spring disposed on the barrel. As the pressure drops, the piston rod (2) returns to its initial position thanks to the return spring.
- a clutch valve (4) is actuated to allow coupling of the piston rod (2) to the transmission (5) which sets in motion the control mechanism (6).
- the clutch valve (4) and the transmission (5) are frictionally coupled.
- the control mechanism (6-9) is positioned upstream of the flaps (10).
- the control mechanism (6) actuates the arms of amplitude levers (8) which close the flaps (10), thus allowing the gases to escape through the pipes (1 1).
- the flaps (10) (and their seat) are placed transversely to the axis of the barrel and are of predetermined length and slightly offset between them along the axis of the barrel, so that in the closed position they partially overlap without clashing.
- each flap (10) has an opening adapted to receive the end of the amplitude lever arm (8) to transmit the pivoting movement of the amplitude lever (8) and actuate the flap (10) in one direction. transverse to the axis of the barrel.
- the elements (2,4,5,6) of the actuating mechanism are set in motion in a direction generally parallel to the axis of the barrel.
- control mechanism (6-9) comprises a guide ring (6) adapted to slide on the barrel and provided with an extension (5) of transmission cooperating with the piston rod (2) for transmitting the movement to the lever arms (8).
- the piston rod (2) is coupled by the transmission extension (5) with the control (6) to set it in motion.
- the guide ring (6) further comprises two wedge-shaped base pieces arranged laterally to the axis of the barrel and having an angled edge surface (rectilinear or curvilinear) directed towards the adapted flaps (10). to enable the lever arms (8) to pivotably engage the pivots (7) to close the flaps (10).
- a first return spring is associated with the guide ring (6) so that it returns to its initial position, the pressure decreasing.
- a second return spring (9) is associated with each of the lever arms (8) so that the lever arms (8) and the flaps (10) return to their initial position, the pressure decreasing.
- the lever lever recoil springs (9) can be removed by adding a lateral guide (not shown) to the controls (6 and 15), which, by retreating, return the arms to their initial positions.
- the valve (4) acts as a clutch element (4) which is moved downwards to couple the piston rod (2) to the transmission (5).
- the clutch element (4) pushed down by the gas in the opening (3) to the passage of the ball blocks the element (4) of the rod (2) on the extension (5) of the ring (6) by transmitting the movement.
- the parts 5 to 9 of the control mechanism are positioned downstream of the flaps (10).
- Figure 3B is similar to Figure 3A but the clutch valve and the transmission (5) are eliminated in this embodiment and there is a direct coupling of the piston rod to the control ring (6).
- the linkage of the control mechanism (6-9) is composed of two amplitude lever arms (8) mounted on pivots (7) and which, actuated by the ring of control (6), close the two flaps (10).
- the piston (2) of the device disposed in the cylinder (16) and extended by the rod (2) is directly connected to the control mechanism (6-9).
- parts 3, 4, 5 can be dispensed with.
- the second gas intake (3), the clutch valve (4) and the transmission (5) are eliminated in this mode. realization, and there is a direct coupling of the piston rod (2) to the control ring (6).
- the piston (2) is connected to the control (6) by direct contact.
- the piston (2) and the control (6) are practically only one piece.
- the piston (2) and the control (6) can be integrated and formed in one piece.
- the version in Figures 4 and 5 is intended mainly for short-barreled weapons, but it is not an obligation.
- the linkage of the control mechanism is composed of two amplitude lever arms (8) mounted on pivots (7) and which, actuated by the control (6), close the shutters (10).
- Figure 3A The version of Figure 3A is comparable to Figure 1 except that the closing mechanism is positioned after the shutters, this to shorten the whole.
- the linkage is composed by two amplitude lever arms (8) mounted on pivots (7) and which, actuated by the control, close the flaps (10).
- the arms (8) are provided here to give a lever of amplitude of 10 times, that is to say that the proportion of the arm between before and after the pivot is from 1 to 10, ie a total length of 1 1 units.
- the amplitude, here of 10 times may be increased or decreased as desired.
- the version of Figure 4 is intended primarily for short-barreled weapons, but the advantage of the version of Figure 1 with a second throttle (3) that pushes a clutch element (4) is that the piston (2 ) will already be in motion at the time of the passage of the projectile and thus that the coupling triggered by ⁇ clutch element (4) finds a part already in motion, which accelerates the shutter closing mechanism.
- the time that elapses between the percussion of the socket and the output of the barrel projectile is of the order of 1, 2 to 2.4 milliseconds.
- lever arms (8 and 12) are split, and the whole positioned is downstream of the flaps (10) as illustrated in FIG. 7, upstream of the shutters (not shown).
- control mechanism (15) actuates the double amplitude lever arms (8, 12) which close the flaps (10), thus allowing the gases to escape through the pipes (1 1).
- the control mechanism (15) comprises a guide ring (15) which actuates two first amplitude lever arms (12) pivotally mounted on pivots (13) fixed to the barrel, and these two first lever arms of amplitude (12) are coupled to two second amplitude lever arms (8) pivotally mounted on pins (7) attached to the barrel.
- Each of the first two amplitude lever arms (12) actuates one of the associated second amplitude lever arms (8), each of the second and second amplitude lever arms (8) being coupled to one of the closure flaps ( 10).
- the other elements in this variant are similar to those of the embodiments illustrated in FIGS. 1 to 6. It should be noted that the control mechanism (15) separates the amplitude lever arms (12) while the control mechanism (6) of the other embodiments approaches the amplitude lever arms (8).
- an expansion vessel with timer (22-27) is associated with the exhaust pipes (21) for the treatment of recovered gases and inhibition of the sound wave.
- Other solutions are possible.
- the expansion tank 27 is coupled to the exhaust pipes (21) and has an axis (23) internal mu by the pressure of the gas to redirect these gases.
- the expansion vessel 27 receives the gases conveyed by the recovery pipes (21) which penetrate into the expansion tank 27 through the opening (22) made on the shaft (23) once this has been pushed at the end of the race and thus closing the openings (24).
- a pressure relief valve (25) is present (but could be replaced by small holes). The pressure down, the axis returns to its initial position thanks to the return spring 26 and the gases are evacuated through the gills (24).
- the final goal of the device achieved by the invention described here is the inhibition of the sound wave produced by the firing of the ammunition (gunshot).
- This shutter for the inhibition of the sound wave produced by the firing of the ammunition prevents the release of combustion gases and sound waves through the mouth of the barrel by deflecting them to a treatment zone adequate, while leaving intact the prerogatives specific to ammunition (speed, precision).
- the sound waves follow the projectile; although the speed of sound in gaseous medium is variable (it can reach very high values depending in particular on the temperature of the gases), the sound wave does not stick to the projectile inside the barrel; if its velocity is greater than that of the projectile, there is back-and-forth of this wave inside the barrel.
- the speed of the projectile can vary between 250 and 950m / s according to caliber and type of ammunition.
- the shutter valve (a flap or double flap) will close the barrel after the passage of the projectile; moving at the same speed as the projectile distance traveled by the latter before the full closure of the barrel will be equal to the inner diameter of the barrel - it will be half when using a double flap (DV); for a 7mm ammunition the distance will be 7 mm (DV: 3.5mm.); for a 12 gauge 18.4 mm shot, it will be 18.4mm (DV: 9.2mm).
- the volume of gas that the valve will thus pass before closing will be 2.69 cm3 (DV: 1.35 cm3) for a 7mm and 4.89 cm3 ammunition (DV: 2.45 cm3) for a 12 gauge rifle.
- control device kinetic kinetics by gas recovery
- the decrease in the intensity of the noise can be of the order of 50 to 70 dbA, see more, in the case of one of a long firearm.
- the residual noise is that caused by the projectile whipping the air.
- the flue gases are recovered by making a hole in the barrel. These gases will set in motion a control piston whose rod (2) will serve to actuate the closing mechanism, with or without the intervention of a transmission valve (4) actuated by the gas recovered after the passage of the projectile.
- the closure mechanism consists of lever arms (8) actuated by a part (5) whose shape can be variable.
- the ring (6) should move in reality and in all only between 0.6 and 2 mm, depending on the calibers and the chosen amplitude of the levers.
- the closure of the flaps (10) takes place after the passage of the projectile and before the arrival of the sound wave at this level so as to allow the gases to escape through the pipes (1). 1).
- this expansion vessel may be of any shape and made of any material, solid or elastic; it can be applied anywhere on the weapon (for example laterally on the barrel or below);
- flap support 10 incorporated during the gun manufacturing process or modification thereof;
- the shutter device will be operated by linkage.
- the movement of the entire device will be, for example controlled by a piston of about 4-5 mm in diameter with a rod (2) at the end, located in a tube and mu by the recovery of gases in this way: 2 holes about 2mm in diameter after the explosion chamber communicating with the tube in which the piston is; if need be, the tube may be at the beginning of a larger diameter of what is necessary, and then reduced at the level of the piston: this has the effect of increasing the pressure of the gases and thus the speed of movement of the piston (2 ).
- the rod (2) moved by the piston will actuate the valve and the pump, with a return to the initial position by return spring.
- the exact position of the 2 holes of 2mm (or different size) for the recovery of gases, the diameter and the shape of the tube, the length of the control rod, the need or not for an independent booster, the synchronization of the valve and the piston can be established during tests including using high-speed shooting, or, better, by the use of projectile detectors.
- the piston will be of relatively high weight to ensure kinetic inertia; on the other hand the other moving parts will together have a total order weight of less than 10 grams.
- the other moving parts will together have a total order weight of less than 10 grams.
- the displacement of the closing command for a 7 mm caliber is 0.4 mm (at 300 m / s) with a lever of amplitude of 10 x (each flap moving 4 mm), is thus in 0.0013 millisecond .
- the displacement of the projectile is 1 .17mm.
- the element (4) will be positioned at 27 cm before the shutters.
- the element 1 will be positioned 13.4 cm before the shutters.
- Volume of gas escaping forward between 0.039 cm3 (reaction time 0.15 milliseconds) and 0.175 cm3 (reaction time of 0.2 milliseconds)
- the length of the amplitude levers (8) (12) varies according to size and the desired amplitude effect. If it is 10 times then for a 7 mm ammunition (of which each flap will move 4mm), the length of the amplitude levers will be about 2cm after the pivot, the control moving 0.4mm. For a 12-gauge ammunition (approximately 2 cm in diameter) the length of the amplitude levers will be approximately 5 cm after the pivot.
- the piston will therefore already be in motion when the passage of the projectile triggers the device, to avoid the latency of the inertia of setting in motion.
- the piston according to its weight, its position relative to the chamber of the weapon, and the caliber of the latter will have a speed that can be lower, equal to or even greater than that of the projectile (this does not have much of importance). As it will not matter much a variation of the speed of the ammunition because it results in a difference of micrometric displacement, and that also the piston receives proportionally always the same force.
- the speed of shutter closing is very important: they should close as quickly as possible.
- the arms (8, 12) are provided here to give a lever of amplitude of 10 times, that is to say that the proportion of the arm between before and after the pivot are from 1 to 10, ie a length total of 1 1 units.
- the "compact" version of Figure 7 serves to reduce this distance.
- the first battery of levers (12) has a proportion of 1 to 2.5 and the final battery (8) of 1 to 4.
- the total length of 1 1 units is reduced to 5 keeping an amplitude of 10 times.
- the amplitude, here of 10 times may be increased or decreased as desired.
- the force generated by the gas recovery is largely greater than the needs of the device.
- the caliber of the weapons in internal diameter vary from 5.5 mm to 20 mm. Taking into account the speed of the piston, the amplitude of the lever and the diameter of the caliber can easily calculate the volume of gas escaping through the mouth of the barrel before flap closure.
- the particular characteristics and advantages of the invention are in particular that, provided with the device of the invention for neutralizing the sound and fire of a firearm, no annoying sound comes out of the firearm and that the projectiles keep intact all their prerogatives (speed, precision) without producing any noise by the shock wave.
- the residual noise is that caused by the projectile whipping the air.
- the device of the invention is very light and low cost.
- All pieces, their shape and their positions can vary to infinity.
- the recovery pipes or exhaust can be reduced to one and not necessarily tubular, the expansion tank be of different shape, the control 6 represented by a complete circular ring could be in a circular arc, etc.
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- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
- Toys (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
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Abstract
Description
Claims
Priority Applications (18)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL17746003T PL3485216T3 (pl) | 2016-07-18 | 2017-07-14 | Urządzenie neutralizujące dźwięk do broni palnej |
| CN201780049897.9A CN109690229A (zh) | 2016-07-18 | 2017-07-14 | 用于枪械的消音器装置 |
| SM20200491T SMT202000491T1 (it) | 2016-07-18 | 2017-07-14 | Dispositivo silenziatore per arma da fuoco |
| DK17746003.7T DK3485216T3 (da) | 2016-07-18 | 2017-07-14 | Lyddæmper til skydevåben |
| CA3031229A CA3031229A1 (fr) | 2016-07-18 | 2017-07-14 | Dispositif neutralisateur de son pour arme a feu |
| EA201900035A EA037134B1 (ru) | 2016-07-18 | 2017-07-14 | Глушитель для огнестрельного оружия |
| LTEP17746003.7T LT3485216T (lt) | 2016-07-18 | 2017-07-14 | Duslintuvas šaunamajam ginklui |
| US16/318,929 US10718587B2 (en) | 2016-07-18 | 2017-07-14 | Silencer device for firearm |
| RS20201107A RS60810B1 (sr) | 2016-07-18 | 2017-07-14 | Prigušivač za vatreno oružje |
| MX2019000710A MX2019000710A (es) | 2016-07-18 | 2017-07-14 | Dispositivo silenciador para arma de fuego. |
| BR112019001123-4A BR112019001123A2 (pt) | 2016-07-18 | 2017-07-14 | dispositivo silenciador para arma de fogo |
| HRP20201356TT HRP20201356T1 (hr) | 2016-07-18 | 2017-07-14 | Prigušivač za vatreno oružje |
| JP2019503352A JP2019521309A (ja) | 2016-07-18 | 2017-07-14 | 銃器用サイレンサー装置 |
| ES17746003T ES2820282T3 (es) | 2016-07-18 | 2017-07-14 | Dispositivo neutralizador de sonido para arma de fuego |
| SI201730411T SI3485216T1 (sl) | 2016-07-18 | 2017-07-14 | Dušilna naprava zvoka za strelno orožje |
| EP17746003.7A EP3485216B1 (fr) | 2016-07-18 | 2017-07-14 | Dispositif neutralisateur de son pour arme à feu |
| IL264286A IL264286A (en) | 2016-07-18 | 2019-01-16 | Silencer for firearms |
| CY20201100838T CY1123327T1 (el) | 2016-07-18 | 2020-09-07 | Διαταξη εξουδετερωσης ηχου για πυροβολο οπλο |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU93152 | 2016-07-18 | ||
| LU93152A LU93152B1 (fr) | 2016-07-18 | 2016-07-18 | Dispositif neutraliseur de son pour arme à feu |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2018015301A1 true WO2018015301A1 (fr) | 2018-01-25 |
Family
ID=56571351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2017/067873 Ceased WO2018015301A1 (fr) | 2016-07-18 | 2017-07-14 | Dispositif neutralisateur de son pour arme à feu |
Country Status (22)
| Country | Link |
|---|---|
| US (1) | US10718587B2 (fr) |
| EP (1) | EP3485216B1 (fr) |
| JP (1) | JP2019521309A (fr) |
| CN (1) | CN109690229A (fr) |
| BR (1) | BR112019001123A2 (fr) |
| CA (1) | CA3031229A1 (fr) |
| CY (1) | CY1123327T1 (fr) |
| DK (1) | DK3485216T3 (fr) |
| EA (1) | EA037134B1 (fr) |
| ES (1) | ES2820282T3 (fr) |
| HR (1) | HRP20201356T1 (fr) |
| HU (1) | HUE050916T2 (fr) |
| IL (1) | IL264286A (fr) |
| LT (1) | LT3485216T (fr) |
| LU (1) | LU93152B1 (fr) |
| MX (1) | MX2019000710A (fr) |
| PL (1) | PL3485216T3 (fr) |
| PT (1) | PT3485216T (fr) |
| RS (1) | RS60810B1 (fr) |
| SI (1) | SI3485216T1 (fr) |
| SM (1) | SMT202000491T1 (fr) |
| WO (1) | WO2018015301A1 (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11927410B2 (en) * | 2021-09-27 | 2024-03-12 | Jacob KUNSKY | Firearm suppressor with remote chamber |
| US11976896B2 (en) * | 2022-02-25 | 2024-05-07 | True Velocity Ip Holdings, Llc | Firearm muzzle brake with gas-actuated valve |
| CN115950301B (zh) * | 2022-12-09 | 2025-05-06 | 西安昆仑工业(集团)有限责任公司 | 一种水下炮口密封装置及使用方法 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE150359C (fr) * | ||||
| CH34973A (fr) * | 1905-09-02 | 1906-06-30 | Nygaards Gevaerkompagni As | Arme à feu perfectionnée |
| DE2238834A1 (de) * | 1972-08-07 | 1974-02-14 | Ernst Kitzmann | Schalldaempfer fuer waffen verschiedener art |
| WO1996003612A1 (fr) | 1994-05-16 | 1996-02-08 | Bernard Louvat | Silencieux pour fusil |
| WO2011035111A1 (fr) | 2009-09-18 | 2011-03-24 | Silencerco, Llc | Silencieux d'arme à feu |
| WO2014000805A1 (fr) | 2012-06-28 | 2014-01-03 | Oliver Fischer | Silencieux pour une arme portative |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US652742A (en) * | 1897-11-17 | 1900-07-03 | Max Bernstein | Device for preventing reports of guns. |
| US832695A (en) * | 1905-09-01 | 1906-10-09 | Johan Olsen Nygaard | Attachment to the barrels of firearms. |
| US984750A (en) * | 1910-02-01 | 1911-02-21 | Harry Craven | Gun-silencer. |
| US1130609A (en) * | 1913-12-15 | 1915-03-02 | Seth T Jones | Muffler for shotguns. |
| BE347810A (fr) * | 1927-04-27 | |||
| BE345878A (fr) * | 1927-09-01 | 1900-01-01 | ||
| US1773443A (en) * | 1927-10-27 | 1930-08-19 | Wilman Zygmunt | Manufacture of silencers or exhaust tanks for machine guns and other automatic arms |
| US4939977A (en) * | 1989-06-07 | 1990-07-10 | Stroup Larry J | Gun silencer and muzzle protector |
| US5746018A (en) * | 1997-05-19 | 1998-05-05 | The United States Of America As Represented By The Secretary Of The Navy | Muzzle brake for an underwater gun |
| US7516690B2 (en) * | 2006-12-22 | 2009-04-14 | Mcclellan W Thomas | Firearm suppressor, mounting system and mounting method |
| CH702214B1 (de) * | 2009-11-13 | 2018-02-15 | Sphinx Systems Ag | Schalldämpfer für halb- und vollautomatische Feuerwaffen, mit einer Blockiervorrichtung für einen beweglichen Anschluss. |
| US8397862B2 (en) * | 2010-08-04 | 2013-03-19 | Ronnie Alexander Shand | Sound and flash suppressor for firearms |
| TW201233887A (en) * | 2010-10-08 | 2012-08-16 | Pinnacle Engines Inc | Integrated muffler and emissions control for engine exhaust |
| CN102735099A (zh) * | 2012-06-14 | 2012-10-17 | 浙江新华体育器材制造有限公司 | 一种带有消音器的射击枪械 |
-
2016
- 2016-07-18 LU LU93152A patent/LU93152B1/fr active IP Right Grant
-
2017
- 2017-07-14 US US16/318,929 patent/US10718587B2/en not_active Expired - Fee Related
- 2017-07-14 PL PL17746003T patent/PL3485216T3/pl unknown
- 2017-07-14 BR BR112019001123-4A patent/BR112019001123A2/pt not_active Application Discontinuation
- 2017-07-14 WO PCT/EP2017/067873 patent/WO2018015301A1/fr not_active Ceased
- 2017-07-14 SM SM20200491T patent/SMT202000491T1/it unknown
- 2017-07-14 EA EA201900035A patent/EA037134B1/ru not_active IP Right Cessation
- 2017-07-14 EP EP17746003.7A patent/EP3485216B1/fr active Active
- 2017-07-14 CA CA3031229A patent/CA3031229A1/fr not_active Abandoned
- 2017-07-14 SI SI201730411T patent/SI3485216T1/sl unknown
- 2017-07-14 ES ES17746003T patent/ES2820282T3/es active Active
- 2017-07-14 PT PT177460037T patent/PT3485216T/pt unknown
- 2017-07-14 HU HUE17746003A patent/HUE050916T2/hu unknown
- 2017-07-14 CN CN201780049897.9A patent/CN109690229A/zh active Pending
- 2017-07-14 DK DK17746003.7T patent/DK3485216T3/da active
- 2017-07-14 RS RS20201107A patent/RS60810B1/sr unknown
- 2017-07-14 LT LTEP17746003.7T patent/LT3485216T/lt unknown
- 2017-07-14 MX MX2019000710A patent/MX2019000710A/es unknown
- 2017-07-14 HR HRP20201356TT patent/HRP20201356T1/hr unknown
- 2017-07-14 JP JP2019503352A patent/JP2019521309A/ja active Pending
-
2019
- 2019-01-16 IL IL264286A patent/IL264286A/en unknown
-
2020
- 2020-09-07 CY CY20201100838T patent/CY1123327T1/el unknown
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE150359C (fr) * | ||||
| CH34973A (fr) * | 1905-09-02 | 1906-06-30 | Nygaards Gevaerkompagni As | Arme à feu perfectionnée |
| DE2238834A1 (de) * | 1972-08-07 | 1974-02-14 | Ernst Kitzmann | Schalldaempfer fuer waffen verschiedener art |
| WO1996003612A1 (fr) | 1994-05-16 | 1996-02-08 | Bernard Louvat | Silencieux pour fusil |
| WO2011035111A1 (fr) | 2009-09-18 | 2011-03-24 | Silencerco, Llc | Silencieux d'arme à feu |
| WO2014000805A1 (fr) | 2012-06-28 | 2014-01-03 | Oliver Fischer | Silencieux pour une arme portative |
Also Published As
| Publication number | Publication date |
|---|---|
| CY1123327T1 (el) | 2021-12-31 |
| US20190293377A1 (en) | 2019-09-26 |
| CA3031229A1 (fr) | 2018-01-25 |
| BR112019001123A2 (pt) | 2019-04-30 |
| DK3485216T3 (da) | 2020-09-14 |
| JP2019521309A (ja) | 2019-07-25 |
| LT3485216T (lt) | 2020-11-10 |
| CN109690229A (zh) | 2019-04-26 |
| IL264286A (en) | 2019-02-28 |
| EP3485216B1 (fr) | 2020-06-17 |
| US10718587B2 (en) | 2020-07-21 |
| SI3485216T1 (sl) | 2020-10-30 |
| EA037134B1 (ru) | 2021-02-10 |
| HRP20201356T1 (hr) | 2020-11-27 |
| HUE050916T2 (hu) | 2021-01-28 |
| SMT202000491T1 (it) | 2021-01-05 |
| MX2019000710A (es) | 2019-10-14 |
| EA201900035A1 (ru) | 2019-07-31 |
| PL3485216T3 (pl) | 2020-12-28 |
| LU93152B1 (fr) | 2018-03-05 |
| EP3485216A1 (fr) | 2019-05-22 |
| PT3485216T (pt) | 2020-09-21 |
| RS60810B1 (sr) | 2020-10-30 |
| ES2820282T3 (es) | 2021-04-20 |
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