Cartridge. RU patent 2506529.
 Case / 2506528Invention refers to military equipment, and namely to cases for cartridges of non-flying action. Case includes a short housing and a high-pressure chamber. In the short housing of the case, in the place of installation into it of a shell, there arranged is a thin-wall cylindrical extension piece corresponding to length of the shell. |
 Bullet structure / 2502941Bullet shank portion assumes a streamlined form during flight. Bullet shank portion is made in the form of a helical conical compression spring. Spring is made from a light-weight steel strip of rectangular cross section. Spring receives the streamlined shank portion of the bullet during its flight due to elastic forces. |
 Small arms cartridge bullet / 2502940Small arms cartridge bullet consists of a slug mounted in the cover. On outer surface of bullet or its elements (cover, slug), including their end surfaces made from one type of metals, a composite zinc coating with thickness of 4-6 mcm is made by means of an electrolytic method. First, a loosened layer is created on surface of the bullet and/or its elements, for better adhesion of the applied coating by etching. Composition consisting of zinc and brightening additions, the outer surface of which is smoothened by passivation, is applied onto a loosened layer. Boundary of metal contact on end surfaces of a bullet and its elements is tightly closed with composite zinc coating. |
 Small arms cartridge / 2502939Small arms cartridge consists of an encapsulated case with powder charge and a bullet mounted in it. Bullet consists of cover, slug and lead jacket. Ratio of lengths of front and guide parts of the bullet is equal to 1/1 to 5/1. Bullet s mounted in the slug with envelope and crimping of slug mouth along the perimetre of the guide and along perimeter of head surface of the bullet. Height of annular surface of contact of crimped slug mouth with surfaces of head and guide parts of the bullet is equal to 0.5…1.2 of the gauge. |
 Noiseless cartridge-bullet / 2498201Noiseless cartridge-bullet includes a hollow housing with a capsule. A charge and a core are arranged inside the housing in its shank part so that it can be moved to head part. |
 Cartridge for existing model of miniature firearms / 2495361Cartridge for an existing model of miniature firearms comprises a propellant powder and an element interacting with a bullet imitator during firing. The propellant powder is placed in the cartridge case. The cartridge is made from two cases telescopically connected to each other. The inner cartridge case is equipped with an edge for extraction of the cartridge. The propellant powder is installed in the cavity of the inner cartridge case. In the muzzle there is a piston with a diameter equal to the diameter of the inner cavity of the outer cartridge case, interacting with the bullet imitator during firing. In the mouth of the outer cartridge case there is a cylindrical channel arranged coaxially. The outer cartridge case is equipped with gas discharge holes in the rear part, at the level of cut of the inner cartridge case when extended. |
 Mortar silent shell / 2494337Proposed shell comprises main part and tail. Tail case accommodates propellant charge and combination piston with initiator. Shell is composed of detachable sealed screw assy of tail and main part. Tail is furnished with fin. Tail charge chamber accommodates multi-section propellant to be implemented in various versions. Punch-type initiator is arranged inside the piston. Said piston is composed of inner and deformable outer sleeves of different strength. Tail body is furnished with inverse cone on fin side. The inverse can is a braking device during a dislocation of piston to the fin side. |
 Traumatic cartridge for tubeless weapon / 2492408Traumatic cartridge comprises an aluminium case with a stepped cavity, an electric igniting primer, a rubberised bullet with a metal core. The electric igniting primer interacts with a propelling powder charge pressed into a gas generator case. The head part and the polymer tail of the bullet are joined with a link. The tail and the head part of the bullet adequately adjoining to the case. The bullet is installed autonomously from the gas generator and rests against the membrane. The membrane is installed on the ledge of the case cavity. The outer profile of the case is arranged with inclination to the open end at the distance of 0.4-0.5 of its length. |
 Cartridge for noiseless and underwater firing / 2489673Cartridge comprises a case with a slope, a missile, a detonator, a missile element and a piston. The piston is installed in the bottom part of the case with two protruding circular conic ledges, one along the outer cylindrical surface, the other along the inner one, in contact with the missile element. In the central part of the piston end there is a cylindrical groove, on the bottom of which there is a ledge or ledges with an inclined side surface. Also in the piston there are through holes at the inclination angle to the horizontal plane of the piston for gas passage from the missile arranged in the entire free volume of the case. The missile enters the cylindrical groove on the piston, and in its bottom part it has a slot or slots with an inclined side surface, into which a similar ledge or ledges enter in a detachable manner, and those ledges are arranged on the piston. In the conical part of the case slope there is a circular conic obturator installed with a conic face along the inner diameter towards the piston, and at least with one circular rib and a circular bore. The conic surface of the obturator facing towards the piston is coupled along the surface with two circular conic ledges on the piston. |
 Charge for construction shot / 2488070Charge consists of spherical porous powder arranged in encapsulated cartridge case, Powder charge is made of spherical powder with porosity if 26-30 wt % and residual moisture content of 0.1-0.5 wt % graphitised from surface of 0.1-0.3 wt % of graphite at the following ratio of fractions, %: 0.2…0.4 mm - at least, 70, under 0.2 mm and over 0.4 mm - not over 30. |
 Artillery small-caliber cartridge / 2247304The cartridge has interconnected cartridge case carrying the powder propellant charge and an armor-piercing shell having a heavy-alloy core with a tapered nose closed by a ballistic cap, body squeezed through a lead packing ring, provided with a driving band and a bottom chamber for the tracer. The novelty is in the fact that the tracer is installed in a supporting sleeve closed by polymeric spacer and a gas-distributing washer, which is hermetically sealed by the material of the annular collar of the body end face, the central throttling opening of the gas-distributing washer for communication with the powder propellant charge of the cartridge case is provided with radial ducts open on the side of the tracer, and drain holes are made in the body bottom chamber. |
 Cartridge / 2253832The cartridge has a cartridge case with a propellant charge and a shell including an envelope, rotating band, plastic cover covering the warhead, and an explosive device with a detonator positioned in the cover hole and fastened to the shell. The rotating band is made on the plastic cover and has a diameter smaller the diameter of the cartridge case. A washer, having an outside diameter equal to the diameter of the warhead, is positioned between the warhead and the cover. A blind space with radial-face lugs engageable with the washer and mashed by it at a plastic deformation in the direction to the cover at actuation of the warhead is made in the cover around the explosive device on the side of the washer. The explosive device is provided with an outer lug, by which it is installed on the side of the cartridge case with a stop to the cover. |
 Fixed ammunition / 2259535The fixed artillery small caliber ammunition includes a shell with two plastic driving bands, formed by casting under pressure in annular grooves of the lower barreled, the neck of the case filled with powder propellant charge is joined to which. The neck of the case is shortened by the value of the shift of the second from the nose part of the driving band to the bottom end face of the shell, the gap between the driving bands is limited within 3 to 4 mm, and the front profile of the first driving band is made congruent to the intake cone of the barrel bullet, the gap between the leading bands is limited within 3 to 4 mm, and the front profile of the first driving band is made congruent to the cone of the bullet inlet of the gun barrel, the outside diameter of the plastic leading bands makes up 1.04 to 1.05 shell caliber, and the shell bottom end face is conjugated with its outer surface in radius of 1.0 m. |
 Noiseless and flameless fixed round / 2262062The round has a shell resting on the piston pusher made with a blind space limiting from the top the powder propellant charge, composite cartridge case with a screwed off flange and an initiating device. The powder propellant charge is placed in the screwed off flange of the cartridge case through the cartridge bag of the congruent shape of the flange inner surface. The tubular pusher is geometrically closed by centering shoulders made on the end faces of the piston and shell. Grooves are made on the surface of the contact of the piston and cartridge case. The screwed off flange is connected to the cartridge case through the obturating ring. |
 Fixed small-caliber round / 2265787The round has an armor-piercing subcaliber projectile with a heavy-alloy core provided with a tail unit located inside the body filled with a powder propellant charge, with a primer cap with a flame transmission tube installed in its bottom part. The heavy-alloy core is fastened in an aluminum tray carrying a plastic driving band and a case with longitudinal grooves. The tray is made split, whose component sectors are additionally fastened by a band having jumpers of a weakened section and positioned in the circular weakened section and positioned in the circular slot of the central funnel of the front end of the tray, which by means of a left-hand thread is rigidly engaged with the heavy-alloy core, and by means of a lock joint - with the body made in the form of a thin-walled end piece. Communication ducts providing penetration of powder gases formed as a result of combustion of the propellant charge inside the thin-walled end piece are distributed in the tray sectors. |
 Cartridge with non-lethally affecting element / 2266510The cartridge has a cartridge case with a propellant charge and a lengthened affecting element with a driving band, including a plastic body partially flushed in the cartridge case, and end piece of elastic material. Two cavities are made in the end piece aligned with it, spaced apart in its length, and connected by a duct aligned with them: on the side of the cartridge case, provided with an inner circular boss shaped at the inlet to it, and at the front end, whose surface repeats the outer surface of the end piece and conjugated to the duct connecting the cavities. The plastic body is in interference fit in the cavity of the end piece on the side of the cartridge case and provided with a end boss passing through the duct connecting the cavities and installed with a stop in the cavity surface at the front end of the end piece. The driving band is shaped on the end piece around its cavity on the side of the cartridge case. |
 Method for assembly of fixed round / 2267740An igniter is installed in the cartridge-case seat, the cartridge case is filled up with powder, sealing compound is applied on the ammunition body in the place of connection to the cartridge case, the cartridge case is press-fitted on the body, the igniter is installed after the cartridge case is press-fitted on the ammunition body. To prevent pouring out of powder, a porous stopper from combustible material, for example, calico or excelsior, may be also installed inside the cartridge case in its seat before pouring it. |
 Artillery fixed round / 2276768The round has a shell, whose bottom is made in the form of a truncated cone, case with a bush, decoppering agent and a propellant charge with an igniter placed in its duct. The propellant charge is made in the form of a cartridge bag of a toroidal-sectional shape, whose toroidal part is positioned at the case bottom, and the sectional one is fastened by a decoppering agent made in the form of a spiral with formation of a gap between the case inner surface and the charge outer surface. The diameter of the duct of the propellant charge exceeds the diameter of the smaller base of the truncated cone, the igniter is positioned in the area of conjugation of the toroidal and sectional parts of the cartridge bag, the relation of whose heights corresponds to the condition: Ht/Hsp=0.4-0.5, where: Ht - the height of the toroidal part of the cartridge bag, Hsp - the height of the sectional part of the cartridge bag. |
 Artillery cartridge for grenade launcher / 2282130The cartridge has a head with a driving band having bosses for engagement with the barrel rifles, and a tail assembly made for the diameter of the barrel fore-chamber. The combustion chamber filled with a propelling powder charge is made in the tail assembly. Outlets are made in the end face of the tail assembly and an igniter is installed. A radial cam with two sloping surfaces is positioned between the driving band and the tail assembly, the slope of the surfaces of the cam to the cartridge axis makes up 30 to 45 deg. An annular turning is made in the slope base on the side of the driving band. |
 Grenade shot of multifunctional purpose / 2288429The shot has a case, propellant charge with a percussion primer and a shot consisting of a blasting charge placed in a plastic shell without any clearance and a blasting device installed coaxially without any clearance in the inner cavity of the blasting charge made of several charging sections of thermoplastic. The outer surface of the front section of the blasting charge is made cylindrical, and the cavity formed between the inner surface of the plastic shell ogival and the tapered surface of the front charging section is filled with polymeric elastic-strong high-explosive or thermit compound. The area of the end face surface of the front charging section - S engageable with the inner surface of the shot shell ogival at an impact with the obstacle is selected from the condition of provision of strength: S>qn/σcs, where: q - the total weight of the members of the construction and charging sections influencing on the rear surface of the front charging sections influencing on the rear surface of the front charging section; n - the maximum overload at a shot, σcs-allowable compression stress. |
FIELD: weapons and ammunition.
SUBSTANCE: invention refers to ammunition, and namely to cartridges for underbarrel grenade guns. A cartridge includes a grenade and a two-chamber case with propellant charge. Grenade is attached to the two-chamber case through a destructible connection. The two-chamber case includes a high-pressure chamber, a low-pressure chamber, a metal mesh and an augmented plug. Flow ports of the high-pressure chamber are made in the chamber wall. The metal mesh is in-series fixed between flow ports of the high-pressure chamber and propellant charge. Cells of the metal mesh are a bit smaller than minimum size of powder elements of propellant charge. The case is equipped with an additional chamber. The additional chamber cavity is connected to the high-pressure chamber cavity through flow ports of the high-pressure chamber. The additional chamber cavity is also connected to the low-pressure chamber cavity through flow ports of the low-pressure chamber. Flow ports of the low-pressure chamber are made in the chamber wall. Flow ports of the low-pressure chamber have flow surface area that is a bit larger than that of flow ports of the high-pressure chamber. Flow ports of the low-pressure chamber and flow ports of the high-pressure chamber are offset relative to each other. Grenade is installed with its bottom into the case so that it is borne against its additional chamber.
EFFECT: improvement of firing accuracy and reduction of grenade weight.
2 cl, 2 dwg
The invention relates to the field of military equipment, namely to the cartridges for hand individual and grenade launchers, are widely applied by the power structures of almost all countries of the world.
These cartridges have the most extensive in comparison with ammunition to other types of weapons nomenclature and they should fulfill two of the following mandatory requirements: they must have a minimum weight and provide high accuracy of fire, i.e. to have a minimum spread muzzle velocity shot off grenades and minimum temperature shift of the mean values of muzzle velocity in all the temperature range of the use of weapons. These requirements allows, on the one hand to increase the ammunition cartridges transmitted by , and with another - to significantly improve the ability to defeat them each dot objectives the first shot or second result of the first.
The famous cartridges, any of which may be adopted for analogue described in "Jane's Ammunition Handbook, Edited by Terry J Cander and Charles Q Cutshaw Ninth Edition 2000-2001" on .560-568, 570-574 and 578-580 used a variety of technical solutions to achieve this goal, but the most common and effective of them can be to recognize that the application they chambered liners with a high pressure camera. Because of this high pressure cell can be made of high-strength steel hardened and body shells, forming the low-pressure chamber, from high-tech material with a low density, for example, aluminum alloy or even plastic. Thus this solution allows not only to considerably reduce the weight of the sleeves, but also to improve its workability.
In part scatter muzzle velocity grenade similar not meet required patrons of this class requirements in the following two main reasons:
- in it the connection sleeve with a grenade is accomplished by installing a tail part of a grenade in the low-pressure chamber liner with a focus leading corbel grenades in the butt liners and their subsequent bonding with each other glue or compression liners in the groove on the grenade body. Therefore, the free volume of the liner in the assembled cartridge will vary greatly, as it is the case of other equal conditions will influence the technological tolerance manufacture of the two main and largest sizes: the depth of the housing socket and the distance from the bottom of grenades to its leading belt;
- propelling charge in the high-pressure chamber liner is separated from the expenditure of holes in her wall afterburner stub, and the size of the powder elements of the missile and expenditure holes on their values close to each other, thus excluding overlap expenditure holes by several glowing and glowing powder elements of the missile fired. For this reason some burning and inflammable propellant items shall be made through expendable holes in the low-pressure chamber liner, where burning elements can or burn in off-design mode. This is compounded by the wide dispersion of the free volume of the sleeves of the camera (low pressure) and reflects increased spread muzzle velocity grenades each particular party cartridges.
Disadvantages analogue partially addressed in the Chuck by the patent RU№2358226 chosen as a prototype for this proposed invention. The cartridge contains a grenade and bonded with it ruined the shot connection sleeve with the cameras of high and low pressure, capsule, powder propelling charge, afterburner plug and located between the stub and a propelling charge with a metal grid.
Difference prototype analog consists in the following:
pomegranate prototype can be installed in the socket of its tail to a certain depth (without stop leading belt grenades in the butt sleeves), so limiter moving projectile or sleeves with their Assembly can only be a certain element of Assembly fixtures installed the opposite side, with a focus, for example, in a leading band grenades. From this it follows that in the prototype of the initial volume of the chamber low pressure sleeves will have the scatter of no better than in the analogue;
- high pressure chamber liner prototype between propelling charge and afterburning flap is placed a metal grid, the size of the cell which several smaller than the minimum size of gunpowder element of propellant. Thanks to this, the low-pressure chamber submitted only burning powder elements, burnt to the size of a cell of a metal grid, and, consequently, lower compared with the equivalent mass part of the powder elements or burns in off-design (glow) mode, so the discrepancy muzzle velocity grenades prototype will be less, but the negative influence of the dispersion of the free volume of the camera low pressure be a few more.
The technical objective of this proposed invention is to eliminate the disadvantages of the known cartridges, namely improving the accuracy of shooting them and reducing their weight.
Solution of a technical problem according to the estimated invention is achieved by:
- in a cartridge containing a grenade and bonded with her destructible communication sleeve with a propelling charge, expendable holes in the wall of the high-pressure chamber and consistently fixed between consumable holes and a propelling charge the metal grid cell which several smaller than the minimum size of the powder elements propellant charge, and afterburning stub, what is new is that the sleeve is equipped with extra camera, the cavity of which is connected with the cavity of the high-pressure chamber with consumable holes in the wall of the last, and with a cavity camera low pressure sleeves expendable holes made in the own wall with the checkpoint area, slightly larger passing square expenditure holes in the wall of the high-pressure chamber, and shifted relative to them in any direction, the pomegranate is installed in a sleeve with a focus bottom in its secondary camera.
In the particular case:
- in the secondary camera in front of her expendable holes fixed metal mesh with the size of cells equal to or smaller than the size of the grid cell, installed in front of the propelling charge.
The essence of the invention is illustrated by drawings, where 1 is a cartridge in the context of the present invention, as in figure 2 - callout I on figure 1.
Cartridge consists of liners 1 and 2 grenades, which are attached to each other ruined the shot connectivity, such as glue. Sleeve 1 can be with housing 3, made from aluminum alloy and plastic. On the axis of the body 3 is fixed to the camera 4 with the lid 5, which are made of high-strength hardened steel. The bottom of the cover 5 placed in the same plane with the bottom of the housing 3 and in the lid mounted primer-igniter 6 and before the primer-igniter executed end seizure, which is placed in a propelling charge of gunpowder 7. Between the housing 3 and camera, 4 camera is located low-pressure 16. Between the lid 5 and the body of the camera 4 consistently placed pursed between them partition 8 improvised holes 9, afterburning cap 10 and metal mesh 11, the cell size of which is less than the minimum size of the powder elements of the missile 7. The inner cavity of the camera 4 performed speed and therefore partition 8 divides the camera 12 and 13 respectively of high pressure and more. While in the side wall of secondary camera, 13 executed expenditure holes 14, pass through the area of which slightly more passing square hole 9 in the partition 8, and axis are displaced about the axes of holes 9 in any direction, for example in the district, as shown in the drawing. Before expendable 14 holes can be mounted in a metal mesh 15, the cell size equal to or less than the size of the grid cell 11. The presence of the grid 15 and size of its cell stem from the following moments:
- the minimal size of the powder elements of the missile 7;
- the difference in the sizes of elements of the missile 7 and cell metal mesh 11 before expendable 9 holes in the partition 8;
- the degree of displacement of the axis of consumable holes 9 and 14 relative to each other;
- the size of the secondary camera, 13, i.e. its capacity.
When this when connecting 2 grenades with pocket 1 they are set up to stop bottom grenades into the corps of secondary camera, sleeves, i.e. the chamber volume low pressure 16 affects only one size: the value of the protrusion of the camera 4 in the cavity of the body 3.
From the description of the cartridge under this proposed invention show that:
- availability of additional camera allows to reduce pressure levels at a shooting in low-pressure chamber liner and in the barrel of the weapon and the lower peak overload, acting on a grenade at a shot;
- the presence of metal nets before expendable holes both cameras and axis shift holes in them relative to each other to enhance the reliability of the complete combustion of propellant in both chambers and the lower muzzle velocity dispersion grenades and its temperature offset in all the temperature range of application rounds;
- listed positive qualities contributes to the installation of grenades in a sleeve with a focus bottom in its secondary camera, because it achieves the constancy of the initial volume of the camera low pressure sleeves all manufactured cartridges and it provides for reduction with muzzle velocities of their grenades and accordingly increases reliability of defeats the purpose as the first shot, and especially the second by the results of the first. In addition, such a setup grenades sleeve is significantly easier to merge them into one, i.e. in the cartridge. This is especially evident when connecting sleeves and grenades glue.
1. Cartridge containing a grenade and bonded with her destructible communication sleeve with a propelling charge, expendable holes in the wall of the high-pressure chamber and consistently fixed between consumable holes and a propelling charge the metal grid cell which several smaller than the minimum size of the powder elements propellant charge, and afterburning stub, characterized in that the sleeve is equipped with extra camera, the cavity of which communicates with the cavity of the high-pressure chamber with consumable holes in the wall of the latter, and with the cavity of the camera low pressure sleeves expendable holes made in the own wall with the checkpoint area, slightly larger passing square expenditure holes in the wall of the high-pressure chamber, and shifted relative to them in any direction, the pomegranate is installed in a sleeve with a focus bottom in its secondary camera.
2. Chuck according to claim 1, characterized in that in the secondary camera in front of her expendable holes attached a metal grid with mesh size equal to or smaller than the size of the grid cell, installed in front of the propelling charge.