RU2135937C1 - Artillery round - Google Patents

Abstract

FIELD: military equipment, in particular, fixed or separate-case rounds. SUBSTANCE: artillery round has a shell, case with a propellant charge and perforated chamber with an igniter, power source electrically coupled to the shell electronic units. The power source is installed in the perforated chamber near the case bottom, and two vessels with compressed gas an opening assemblies facing the cavity of the perforated chamber are installed between the perforated chamber and shell bottom. The vessels are fastened to the bottom of the perforated chamber through insulators, and the electrical coupling of the power source and shell electronic units is accomplished via the vessel bodies. EFFECT: enhanced reliability and reduced concentration of incompletely burnt gases. 1 dwg

Description

 The present invention relates to military equipment, in particular, to artillery shots of a unitary or separately shell loading.

 Known ammunition, in particular for conducting mounted fire, (1), in which the propellant charge is divided into first and additional charges. Each charge is placed in a casing with outlet openings and an ignition line. In one of the ignition lines installed additional resistance. Igniter lines connect the contact rod to a pressed igniter composition. To ignite the first charge, a relatively small ignition voltage is applied to the contact rod. Due to this, the velocity at the muzzle end is determined by the first charge. To obtain a higher speed, an additional charge is also ignited. In this case, due to the presence of additional resistance, the ignition voltage should be higher.

 The disadvantage of this design is that the power source supplying the ignition voltage to the contact rod is located on the implement carrier, and the contact reciprocal of the contact rod is integrated in the gun’s shutter, is movable and is exposed to oil and dust during operation, resulting in low transmission reliability electrical voltage. This disadvantage was eliminated in the design of a unitary loading shot (2), which contains a sleeve with a capsule and a propelling charge, a perforated chamber and a projectile, the projectile being equipped with a shank, in which an electric igniter equipped with a retardant pyro-composition is placed, and a power source electrically connected to the electric igniter is installed in the bottom of the projectile and with electronic components of the projectile, the shank being located in the chamber of the chamber and a flexible element fixed to its end, and on the outer surface of the shank in the adjacent area a flexible member is formed an annular shoulder, around which the perforation chamber, wherein the chamber has an annular projection to which a separating membrane of the burning material, and between the membrane and electric spark igniter is situated.

 This design increases the reliability of the electronic components of the projectile by placing the power source and its consumers on board the projectile and eliminating movable contacts that may be contaminated.

 However, this design has such a drawback that it requires the use of a special transmission link placed between the capsule and the bottom of the projectile to activate the power source.

 In addition, when firing a guided projectile, and this is done at low pressures, incompletely burned gases with a high content of carbon monoxide (CO) are formed, which, when the shell is extracted, leads to a deterioration in the condition of the crew of the armored vehicle where the gun is installed.

 The aim of the invention is to increase the reliability of the shot while reducing the concentration of incompletely burned gases in the habitable compartment of the armored vehicle after extraction of the sleeve.

This goal is achieved by introducing the following design differences into the known shot design:
- installation of a power source in a perforated chamber at the bottom of the sleeve;
- installation between the chamber and the bottom of the projectile of two containers with compressed gas and opening units;
- circulation of the autopsy nodes in the chamber cavity;
- fastening of containers with the bottom of the chamber through insulators;
- the implementation of the electrical connection of the power source with the electronic components of the projectile through the tank.

 Installing a power source in the perforated chamber at the bottom of the liner allows you to use a shot at the gun, in which there is a reliable striking mechanism, which eliminates the launch of the projectile at the junction of the guns - shot. It should be noted that the ignition of the igniter in the same way as in the prototype (2) is carried out from an electric igniter. In addition, the placement of the power source in the sleeve, and not on the projectile, facilitates the latter, which reduces the mass of the propellant charge, and hence the mass of incompletely burned gases. Placing the power source in the chamber eliminates the loss of its elements and part of the electrical connection - from the power source to the tanks - in the barrel when firing, which increases the reliability.

 The installation between the chamber and the bottom of the projectile of two containers with compressed gas and opening units allows you to purge the barrel after burning a propellant charge and the projectile leaves the barrel and thereby reduce the concentration of incompletely burned gases entering the crew compartment of the armored vehicle.

 The circulation of the opening nodes into the chamber cavity eliminates the loss of their elements (pistons with a cutting leading edge) in the barrel channel.

 The fastening of the containers with the bottom of the chamber structurally simplifies the connection of the power source with the tanks.

 The introduction of insulators between the chamber and the containers, as well as the electrical connection of the power source with the electronic components of the projectile through the housing of the containers, can reliably transmit an electrical impulse to the side of the projectile, since capacitors, in comparison with ordinary wires, are rigid bodies located in a force field (flows hot gas propellant charge under pressure of tens of megopascals). Tanks do not leave after firing residues in the bore, preventing subsequent loading of the gun.

 These measures increase the reliability of the shot.

 Comparison of the claimed technical solution with the prototype made it possible to establish compliance with its criterion of "novelty."

 In the study of other well-known technical solutions in this technical field, signs that distinguish the claimed solution from the prototype were not identified, and therefore they provide the claimed technical solution with the criterion of "inventive step".

 The invention is illustrated in the drawing, where in FIG. shows a general view of the shot.

An artillery shot contains a projectile 1, a sleeve 2 with a propelling charge 3 and a perforated chamber 4 with an igniter 5, a power supply 6 electrically connected to the electronics 7 of the projectile 1, the power supply 6 being installed in the chamber 4 at the bottom 8 of the sleeve 2, and between the camera 4 and the bottom 9 of the projectile 1 there are two containers 10 with compressed gas 11 and opening units 12 facing the cavity 13 of the chamber 4, and the containers 10 are fastened to the bottom 15 of the chamber through insulators 16, and the electrical connection of the power source 6 with the electronic units 7 of the projectile through to rpusa containers 10;
17 - electrical connection from the power source 6 to the tank 10;
18 - electric communication from capacity 10 to electronic units 7;
19 - nut - power supply mounting element 6;
20 - contact on the projectile 1;
21 - contact insulator 20;
22 - electric igniter - moderator (EV);
23 - electric the connection of the power source 6 with the EV 22;
24 - shoulder housing capacity 10.

 The device operates as follows.

 When using the power source 6 from the striking gun, electric currents go: through wires 23 to EV 22 and through wires 17, containers 10, wires 18 to electronic blocks 7.

 Insulators 16 eliminate the violation of the passage of current from the power source 6 to the blocks 7.

 After a delay time (during which blocks 7 are activated), EV 22 is activated, the ignitor 5.

 The gases of the igniter 5 through the perforation of the chamber 4 ignite the charge 3 and set in motion the opening units 12, which are made, for example, in the form of a piston with a sharp front edge (knife). The knife cuts through the bottom (membrane) of the container.

 When the igniter 5 burns, the shoulder 24 perceives the gas pressure, excluding the movement of the tank body, and the nut 19 holds the power source 6 at the bottom 8 of the sleeve 2.

 When the charge 3 is burning, the tanks 10, which ensure the transmission of electric current to the board of the projectile 1, are loaded with the external pressure of the hot gases, while the pressure of the compressed gas 11 partially unloads the tanks 10 from the external pressure.

 When the charge 3 burns, nut 14 holds the container 10 at the bottom 15 of chamber 4, providing the subsequent outflow of compressed gas 11: after the projectile 1 leaves and the pressure drops in the channel of the gun’s barrel by the pressure of compressed gas 11, the opening unit 12 is thrown into the cavity 13 of chamber 4, and the distance from the free end of the shoulder 24 to the power source 6 is greater than the length of the opening unit 12. The latter remain in the cavity 13, not falling into the cavity of the sleeve.

 Compressed gas 11 flows from the tanks 10 and, passing through the perforation of the chamber 4, blows the barrel of the gun from the remnants of the products of combustion of charge 3.

 Thus, the proposed technical solution improves the reliability of the shot while simultaneously purging the barrel of the gun: freeing it from the products of combustion of charge 3.

Sources of information:
1. Application EPO (EP) N 0111195, MKI F 42 B 9/02, publ. 06/06/20.

 2. RF patent N 2038569 (application 5028146/23 of 02.21.92), MKI 6 F 42 B 5/02, 1995, prototype.

Claims (1)

 An artillery shot containing a projectile, a cartridge case with a propelling charge and a perforated chamber with an igniter, a power source electrically connected to the electronic components of the projectile, characterized in that the power source is installed in the perforated chamber at the bottom of the shell, and two are installed between the camera and the bottom of the shell containers with compressed gas and opening units facing the chamber cavity, and the containers are fastened to the bottom of the chamber through insulators, and the electrical connection of the power source with the electronic components of the projectile through the container body.