RU2305250C1 - Projectile - Google Patents

Abstract

FIELD: means for protection of objects, for example, transport facilities (vehicles, tanks, ships, etc) against enemy's weapon, having visual, laser, optoelectronic or control systems (detection, guidance or homing) combined on their basis).

SUBSTANCE: the projectile has a fairing with a timer and the first powder charge, cylindrical body with a bottom connected to the fairing useful load in the form of set of cylindrical pyroelements forming a through duct along the projectile axis, as well as a device for protection and ejection of the useful load including a piston with an axial hole and the second powder charge fastened on it. An addition, the projectile is provided with the third and fourth charges, the third charge is located on the piston on the side of the useful load, and the fourth charge is located between the useful load and the projectile bottom, a locking device is installed between the fairing and the piston, and a disk separating the useful load from the fourth charge is installed between the useful load and the bottom.

EFFECT: enhanced efficiency of protection of objects.

1 dwg

Description

The present invention relates to the field of military equipment and can be used to protect objects, such as vehicles (cars, tanks, ships, etc.), from enemy weapons having visual, laser, optoelectronic or combined control systems based on them (detection , guidance or homing), by setting a visual-optical false target.

The widespread use of weapons with visual-optical control systems is due to the relative simplicity and cost-effectiveness of the equipment installed on it.

In this regard, the protection of objects from these weapons is an urgent task.

A device is known according to US patent 4,726,295 from 05/16/1986, class. 102/334, publ. 02/23/1988, including a cylindrical plastic case, closed at both ends with plastic covers, it contains a pyrolysis with detonators and a payload. The device is equipped with an engine in the form of a charge of solid fuel placed at the bottom of the housing and pyrotechnically connected with a moderator and detonators.

The known device operates as follows.

After applying an electrical impulse from the launcher, a solid fuel charge ignites, the hot gases of which emit the device into the atmosphere. After the fuel burns out, a moderator is activated, which transmits an impulse to the detonators. The latter cause explosive ignition of the pyro-charge and the emission of the entire payload into the atmosphere with the formation of a protective cloud.

The disadvantages of the known device is that the resulting cloud has a small size, so you need to use a whole set. This significantly increases the cost of protection.

Known projectile for US patent 6,889,611 from 10.24.2003, class. 7 F42B 12/48 (102/334), publ. 05/10/2005, including a fairing containing a timer and a knockout charge, a cylindrical body with a bottom attached to the fairing and containing a charge, a payload fastening device including a piston, and a payload in the form of sectional pyroelements placed between the bottom and the axial piston hole. The payload forms an axial hollow channel along the axis of the projectile with the inner walls of the pyroelements. Pyroelements are placed in metal cups with lids equipped with shock absorbers. The inner walls of the glasses, covers and shock absorbers are provided with holes.

Known shell operates as follows.

After starting and reaching the set time, the timer ignites the expelling charge. Hot gases from it ignite the igniter located on the piston from the fairing side, at the same time pressurize the piston, moving metal cups with pyroelements to the bottom and igniting all pyroelements through the axial hole in the piston. The connection of the bottom with the body is cut off, the bottom is separated and all the payload is squeezed into the atmosphere in the direction opposite to the movement of the projectile. Due to the rotation of the projectile, the resistance of air and hot gases from the combustion of pyroelements, the cups break, forming a cloud of burning pyroelements in the air. The latter, falling to the ground, create a multispectral smoke screen.

The disadvantages of the known projectile is that shock absorbers are used to reduce the effect of overloads on the pyroelements, which significantly reduce the useful volume of the projectile. When pyroelements are ejected in the direction opposite to the movement of the projectile, the cloud has small dimensions.

The technical problem solved by the proposed design is to increase the efficiency of protection of objects.

The problem is solved in that in a projectile comprising a fairing with a timer and a first powder charge, a cylindrical body with a bottom attached to the fairing, as well as a device for protecting and ejecting a payload, including a piston, a payload in the form of a set of cylindrical pyroelements forming a through a channel along the axis of the projectile, and placed between the bottom and the piston with an axial hole, and a second powder charge fixed to the piston. The projectile is additionally equipped with third and fourth charges. Moreover, the third charge is placed on the piston from the side of the payload, and the fourth is between the payload and the bottom of the projectile. At the same time, a locking device is installed between the fairing and the piston. A disk is installed between the payload and the bottom, separating the payload from the fourth charge. The locking device is made in the form of an outer split and an inner continuous ring, and the outer diameter of the inner ring is made smaller than the inner diameter of the housing. The device for the protection and discharge of the payload is made in the form of gaskets with collars. Pyroelements of two adjacent rows are facing each other with igniter composition, and between them diaphragms with axial holes are installed.

The use of centrifugal forces from the rotation of the projectile in combination with the ejection of the payload forward along the projectile flight path significantly increases the size of the protective cloud created.

The use of the third charge, placed on the piston, in combination with the fourth, placed at the bottom of the projectile, ensures the reliability of ignition and ejection of burning pyroelements into the incoming air flow.

The use of a locking device of this design in combination with a second charge allows you to reliably separate the fairing from the shell of the projectile and ensure the completeness of the discharge of the payload.

The use of a device for protecting and ejecting a payload of this design in combination with diaphragms, a piston and a disk ensures the safety of the payload until it is ejected and the completeness of its ejection from the shell of the projectile.

The use of a hollow axial channel in combination with diaphragms and the rotation of the pyroelements to each other with an igniter composition ensures the reliability of the simultaneous ignition of all pyroelements.

Thus, all of the above distinguishing features that are not identified in the known technical solutions, in their totality, allow us to solve the technical problem and confirm the compliance of the proposed technical solution with the criterion of "inventive step".

The essence of the proposed design is illustrated by the attached drawing and description to it.

The drawing shows a longitudinal section of the proposed device in assembled form.

The projectile of the invention includes a fairing 1 with a timer 2 and a first powder charge 3, a cylindrical body 4 with a bottom 5, a device 6 for protecting and ejecting a payload 7, a piston 8 with an axial bore 9, a second powder charge 10, a through channel 11, a third a powder charge 12 located on the piston 8, a fourth powder charge 13, located between the disk 14 and the bottom 5, gaskets 6 with collars, a locking device 15, located between the fairing 1 and the housing 4, between the adjacent pyroelements of the payload 7 are installed diaphragms 16 with an axis holes.

The proposed projectile operates as follows.

After launch, the projectile reaches a predetermined portion of the trajectory, the timer 2 fires and sends an impulse to the first powder charge 3. The hot gases of the latter ignite the third powder charge 12. The hot gases of the latter through the channel 11 and the openings in the diaphragms 16 ignite the pyroelements of the payload 7 and through the axial hole 9 into the second powder charge 10 is ignited by the piston 8, and the fourth powder charge is ignited through the hole in the disk 14. The gases from the combustion of the second powder charge 10 through the piston 8 are pressed to connect the fairing 1 with rpusom 4 and through the use of the locking device 16 tearing it. The gas pressure from the combustion of the fourth powder charge 13 in the direction of the fairing 1 moves the disk 14 and throws the payload 7 into the incoming air flow through the open end of the housing. Under the influence of centrifugal forces, burning pyroelements form a radial fireball expanding.

Field tests of the prototype of the proposed design confirmed the high efficiency of the projectile.

Claims (4)

1. A projectile for setting a visual-optical false target, comprising a fairing with a timer and a first powder charge, a cylindrical body with a bottom attached to the fairing, a payload in the form of a set of cylindrical pyroelements forming a through channel along the axis of the projectile, as well as a device for protection and payload discharge, including a piston with an axial bore and with a second powder charge fixed on it, while a set of cylindrical pyroelements is placed between the bottom and the piston, characterized in that it complements It is fully equipped with a third and fourth powder charges, the third charge being placed on the piston from the payload side and the fourth being between the payload and the bottom of the projectile, with a locking device installed between the fairing and the piston, and a disk separating the useful payload between the payload and the bottom. load from the fourth charge. 2. The projectile according to claim 1, characterized in that the device for protection and discharge of the payload contains gaskets with collars. 3. The projectile according to claim 1, characterized in that the locking device located between the fairing and the housing is made in the form of an outer split and an inner continuous ring, the outer diameter of the inner ring being smaller than the inner diameter of the housing. 4. The projectile according to claim 1, characterized in that the pyroelements of two adjacent rows are facing the igniter composition to each other, and between them are installed diaphragms with axial holes.