WO1997028413A1 - Canon d'arme a feu - Google Patents
Canon d'arme a feu Download PDFInfo
- Publication number
- WO1997028413A1 WO1997028413A1 PCT/KZ1997/000001 KZ9700001W WO9728413A1 WO 1997028413 A1 WO1997028413 A1 WO 1997028413A1 KZ 9700001 W KZ9700001 W KZ 9700001W WO 9728413 A1 WO9728413 A1 WO 9728413A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- barrel
- projectile
- channel
- bullet
- cavities
- 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.)
- Ceased
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
- F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
- F41A21/28—Gas-expansion chambers; Barrels provided with gas-relieving ports
Definitions
- the invention concerns to area of arms engineering, in particular, to designs of the fire weapon barrels both smoothly-barrel and rifled and it can be used at manufacturing barrels of fire weapon: artilleries, shooting and near fight.
- the basic part of the modem fire weapon is a weapon barrel, intended for a direction of bullet flight or a projectile flight while shooting, making to them a rotary movement and required initial speed, there is the process of transformation of gun-powder charge chemical energy in barrel and it gives kinetic energy of a bullet or projectile as a result of combustion and expansion of gun-powder gases.
- the barrel consists of the case and barrel channel, which, in turn, consists of a state part of a barrel, including a lock part and the chamber for a charge and a projectile or a projectile with a bullet, and purely of the barrel channel (leiner) - stitch-in for making of flight direction for a projectile or bullet.
- the problem of the invention consists in development of a weapon barrel design, in which the process of chemical energy transformation of a gun-powder charge into kinetic energy of a projectile or bullet is more effective.
- All known types of barrels are applied in basic in atmosphere.
- the atmospheric gases in the barrel channel much influence a projectile or bullet during them dispersal in the channel barrel.
- To overcome braking influence of environment during dispersal of a projectile or the bullet in a barrel it is necessary considerably to increase pressure of pushing out gases- in the fire weapon to increase weight of a gun-powder charge.
- the backlash between walls of the barrel channel and walls of a projectile or bullet basically cannot be eliminated, otherwise it should to overcome resistance of friction about a wall of the channel and even more to increase weight of a charge.
- a problem of the invention were to minimize influence of these reasons on achievable by a projectile or bullet kinetic energy.
- For reduction the pressure of gases before a projectile during its movement in the barrel channel it is necessary to move a part of gases from a zone of a condensation before a projectile to a zone of pushing gases. And also to prevent or, at least, to lower break of pushing gases through a backlash between a projectile or bullet and walls of the barrel channel.
- the technical result, achievable by use of the invention is increasing of kinetic energy of a fired bullet or a projectile and, hence, their initial speed. Besides reduction of power expenses by dispersal of a bullet or projectile in a barrel up to required initial speed.
- the offered weapon barrel has the case with the barrel channel or leiner, along which in walls cavities are carried out. They expand section of the barrel channel in places of their arrangements.
- cavities in walls of the barrel channel are carried out in the form Laval nozzles. They are with quickness with a decreasing interval between them before place equal 0,1 - 0,5 lengths of a barrel. That is the place of the maximum developed pressure of gun-powder gases. And they with an increased interval between them from this place up to the end of a barrel, thus the longitudinal size of cavities no more than the length of leading part of projectile.
- the required technical result is reached by that in offered for use in the shooting weapon barrel the cavities in the barrel channel walls are carried out in the form of nozzles Laval and located in regular intervals along a barrel, starting with not smaller twenty calibres from a state part of a barrel.
- This longitudinal size of cavities does not exceed three calibres.
- the required technical result is reached by that in offered for use in the shooting weapon a barrel cavities in walls of the barrel channel are carried out as a screw cavity. They are located starting with not smaller twenty calibres from a state part of a barrel. Thus the step of the cavities screw does not exceed five calibres.
- the required technical result is reached by that in offered for use in the weapon of near fight barrel cavities are more than one caliber. They carried out as caverns of the any form with the greatest size no more than one calibreand located at the end part equal 0,7 - 1,0 of barrel channel part length.
- FIG.l a cut of a weapon barrel with cavities is represented.
- FIG.2 a cut of a barrel part with a cavity, carried out as a nozzle Laval with arising turbulent flows is represented.
- FIG.3 a cut of a barrel part with a cavity, carried out as a nozzle Laval, with vectors of expansion of gun ⁇ powder gas and hollow zone is represented.
- Use of an offered barrel allows to increase initial speed of a fired projectile or bullets up to 1500 - 4000 M/C.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Toys (AREA)
Abstract
L'invention se rapporte au domaine de l'ingénierie des systèmes d'armes et notamment à la conception des canons pour armes à feu aussi bien à canon lisse qu'à canon rayé, et trouve application dans la fabrication des armes à feu pour l'artillerie, le tir et les combats rapprochés. On obtient, comme résultat technique, une augmentation de l'énergie cinétique et de la vitesse initiale du projectile ou de la balle tiré(e), et une réduction de l'énergie nécessaire à la propulsion du projectile ou de la balle jusqu'à la vitesse initiale voulue. Des cavités ou rainures sous forme de tuyères de Laval ou d'une cavité hélicoïdale sont prévues dans l'âme du canon, dans le cas où le canon doit servir de canon d'artillerie ou de tir. Dans le cas des armes pour combats rapproché, le choix de la forme de ces cavités ou rainures est indifférent. Un canon de ce type permet de limiter les fuites de gaz propulseurs dues au jeu entre le projectile ou la balle et les parois de l'âme du canon, et donc leur accumulation devant le projectile ou la balle. Ceci permet de réduire la condensation des gaz présents dans l'âme du canon devant le projectile ou la balle, et augmente le rendement de la transformation de l'énergie chimique de la charge de poudre en énergie cinétique du projectile ou de la balle, tout en réduisant l'énergie nécessaire à la propulsion du projectile jusqu'à la vitesse initiale voulue, ou en augmentant la vitesse de la balle ou du projectile dans le canon jusqu'à une valeur comprise entre 1500 et 4000 m/sec.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU21801/97A AU2180197A (en) | 1996-02-01 | 1997-01-31 | Weapon barrel |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KZ960103 | 1996-02-01 | ||
| KZ960103.1 | 1996-02-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1997028413A1 true WO1997028413A1 (fr) | 1997-08-07 |
| WO1997028413B1 WO1997028413B1 (fr) | 1997-10-09 |
Family
ID=19720761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KZ1997/000001 Ceased WO1997028413A1 (fr) | 1996-02-01 | 1997-01-31 | Canon d'arme a feu |
Country Status (2)
| Country | Link |
|---|---|
| AU (1) | AU2180197A (fr) |
| WO (1) | WO1997028413A1 (fr) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999046553A1 (fr) * | 1998-03-09 | 1999-09-16 | Tsai, Arthur | Bouche pour canon d'arme a feu (variantes) |
| WO2008090385A1 (fr) * | 2007-01-23 | 2008-07-31 | Kukhaleishvili Rati | Procédé pour accroître la vitesse initiale d'une balle dans une arme à âme rayée et dans le canon d'une arme d'abramian à âme rayée |
| CN104160159A (zh) * | 2012-03-07 | 2014-11-19 | 株式会社电装 | 喷射器 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR513717A (fr) * | 1920-04-14 | 1921-02-22 | Armand Alvares Penteado | Canon mixte utilisant d'abord la pression puis la force vive des gaz |
| US1450558A (en) * | 1921-03-24 | 1923-04-03 | Charles Alphonse Francois Del | Gun |
| DE1428632A1 (de) * | 1964-07-22 | 1969-03-13 | Eta Corp | Ballistisches Schiess-,Abschussgeraet od.dgl.,insbesondere Mehrdruckkanone |
| US4176487A (en) * | 1970-11-18 | 1979-12-04 | Manis John R | Firearm barrels and projectiles |
| FR2570175A1 (fr) * | 1984-09-12 | 1986-03-14 | Jacquier Pierre | Chambre(s) de compensation. dispositif visant a modifier le regime de fonctionnement des armes a feu |
| CH673524A5 (en) * | 1987-05-26 | 1990-03-15 | Amtrust Ag | Missile tube - has radial recesses in guide surface separated from each other in lengthwise direction |
-
1997
- 1997-01-31 WO PCT/KZ1997/000001 patent/WO1997028413A1/fr not_active Ceased
- 1997-01-31 AU AU21801/97A patent/AU2180197A/en not_active Abandoned
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR513717A (fr) * | 1920-04-14 | 1921-02-22 | Armand Alvares Penteado | Canon mixte utilisant d'abord la pression puis la force vive des gaz |
| US1450558A (en) * | 1921-03-24 | 1923-04-03 | Charles Alphonse Francois Del | Gun |
| DE1428632A1 (de) * | 1964-07-22 | 1969-03-13 | Eta Corp | Ballistisches Schiess-,Abschussgeraet od.dgl.,insbesondere Mehrdruckkanone |
| US4176487A (en) * | 1970-11-18 | 1979-12-04 | Manis John R | Firearm barrels and projectiles |
| FR2570175A1 (fr) * | 1984-09-12 | 1986-03-14 | Jacquier Pierre | Chambre(s) de compensation. dispositif visant a modifier le regime de fonctionnement des armes a feu |
| CH673524A5 (en) * | 1987-05-26 | 1990-03-15 | Amtrust Ag | Missile tube - has radial recesses in guide surface separated from each other in lengthwise direction |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999046553A1 (fr) * | 1998-03-09 | 1999-09-16 | Tsai, Arthur | Bouche pour canon d'arme a feu (variantes) |
| WO2008090385A1 (fr) * | 2007-01-23 | 2008-07-31 | Kukhaleishvili Rati | Procédé pour accroître la vitesse initiale d'une balle dans une arme à âme rayée et dans le canon d'une arme d'abramian à âme rayée |
| CN104160159A (zh) * | 2012-03-07 | 2014-11-19 | 株式会社电装 | 喷射器 |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2180197A (en) | 1997-08-22 |
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