RU190214U1 - DIMO-GENERATOR FOR PROTECTION OF AIRPLANES FROM MISSILES OF PORTABLE ZENITIC MISSILES - Google Patents

Abstract

The smoke generator to protect aircraft from missiles of portable anti-aircraft missile systems relates to anti-missile technology, in particular to means of creating interference for infrared-guided missiles, and is designed to protect aircraft and other aircraft from portable anti-aircraft missile systems by setting up smoke interferences with anti-aircraft missiles infrared head homing. Smoke generator to protect aircraft from missiles of portable anti-aircraft missile systems consists of body 1 with pyrotechnic smoke 2, igniter 3, electric igniter 4, smoke generator nozzles 5, air intake housing 6, air intake nozzles 7 and cruciform fasteners 8 air intake to the smoke generator body. When a rocket is detected, an electric igniter 4 of the smoke generator is automatically applied to the electric igniter, and the igniter will be applied. pyrotechnic checker. Combustion products expire through smoke generator nozzles 5 and mix with cold air entering during the flight of the aircraft into the air intake 6. Behind the aircraft a plume of cooled smoke is formed, which shields the engine from infrared radiation from the products of combustion of fuel. 1 il.

Description

The proposed smoke generator for protecting aircraft from missiles of portable anti-aircraft missile systems relates to anti-missile technology, in particular to means of creating interference for infrared-guided missiles, and is intended to protect aircraft and other aircraft from missiles of portable anti-aircraft missile systems by setting up smoke interference to anti-aircraft missiles with infrared head homing.

There are known systems for protecting aircraft from missiles of portable anti-aircraft missile systems (MANPADS) due to laser exposure from the aircraft to an infrared homing head (IR HSS) [1]. Laser treatment systems consist of a device detecting a rocket flying toward an aircraft, a source of laser radiation, and a laser beam guidance system at the rocket. Under the action of a laser beam on a rocket, the irradiation of the infrared receiver of the HOS occurs and a false signal is generated in the processing path, leading to a deviation of the rocket's rudders with subsequent disruption of tracking. The disadvantage of laser interference systems is their high cost, large energy absorption of onboard energy, difficulty in directing a laser beam at the IR GOS.

Known devices for jamming infrared GOS missiles by shooting thermal false targets (TLC) from an aircraft [2, 3]. The devices consist of a cartridge with a powder charge and a pyrotechnic element being shot. The combustion products of pyrotechnic radiation sources used for setting false targets have a temperature of 2500 ... 3000 K and emit infrared waves with a length of 1.5 ... 2 microns. The higher the temperature of the source, the greater the radiation energy. MANPADS of the first generation with IR GOS do not distinguish spectral radiation sources, therefore, they respond to firing thermal false targets due to their high radiation energy and change the course towards a false target.

The lack of devices for setting false targets lies in the fact that in the second generation of MANPADS spectral differences of infrared radiation of aircraft engines and infrared radiation of thermal false targets generators are reliably selected by infrared radiation detectors based on InSb (indium antimonide or antimony indium, λ ~ 4 ... 6 µm) and PbS (lead sulphide, λ ~ 2 ... 3 µm). Therefore, second-generation MANPADS do not respond to pyrotechnic false targets [4].

A smoke-generating warhead [5] (prototype of a utility model), consisting of a metal body with smoke exhaust nozzles, a charge of a smoke-generating substance, an igniter and an electric igniter and designed to protect areas of deployment of troops, weapons, military equipment, moving columns of weapons and military equipment, industrial and other objects from the effects of high-precision air weapons due to the installation of smoke interference at the height of the protected objects of the enemy’s laser guidance systems. The disadvantage of the smoke generator warhead is the relatively high temperature of the resulting smoke plume, which is a source of infrared radiation.

The technical task of the utility model is a smoke generator designed to protect aircraft from missiles of portable anti-aircraft missile systems due to shielding infrared radiation from the aircraft engine by creating a cooled smoke plume behind the aircraft.

This technical task is achieved by protecting the aircraft from missiles of portable anti-aircraft missile systems by shielding infrared radiation from the aircraft engine by creating a cooled smoke plume large in diameter behind the aircraft (Figure 1), consisting of a housing 1 with pyrotechnic smoke bomb 2, igniter 3, electric igniter 4, nozzles 5 on the front of the smoke generator body, air intake 6, air nozzles hozabornika 7 and cruciform mounts 8 of the air intake to the body of the smoke generator. The design of the smoke generator is mounted on an aircraft that has on board a radar system for detecting missiles MANPADS.

When a rocket is detected, the electric igniter 4 of the smoke generator is automatically energized, the electric igniter triggers the igniter 3, which ignites the pyrotechnic block. Combustion products expire through the smoke generator nozzles 5 and mix with cold air entering the air intake 6 during the flight of the aircraft. A plume of cooled smoke is formed behind the aircraft, which shields the engine from infrared radiation from the combustion products of the fuel leaving the engine nozzle. Due to the anti-missile maneuver by the aircraft (right, left, up, down), the size of the smoke plume increases, the probability of a missile hitting the target decreases with increasing size of the smoke plume behind the aircraft.

The proposed smoke generator will reduce the likelihood of a MANPADS missile entering an aircraft by shielding infrared radiation from an aircraft engine by creating a cooled smoke plume behind the aircraft.

In addition, the formation of a smoke plume allows you to simulate a rocket hitting the aircraft and prevent the launch of the second rocket.

Used Books:

1. Laser anti-MANPADS. The opto-electronic suppression system will protect against attacking missiles. Military Review. URL: https://topwar.ru/32503-lazer-protiv-pzrk-sistema-optiko-elektronnogo-podavleniya-zaschitit-ot-atakuyuschih-raket.html

2. Patent RU 2367891. Pyrotechnic cartridge of infrared radiation

3. Patent RU 2399014. A false target for infrared-guided anti-aircraft missiles.

4. The concept of protecting airplanes and helicopters from guided missiles with infrared homing heads. - URL: http://defin.by/media/publications/26-11-14/

5. Patent for utility model №175902. Guided missile with smoke generator warhead.

Claims (1)

Smoke generator containing metal case with smoke exhaust nozzles, charge of smoke-generating substance, igniter and electric igniter, characterized in that to protect aircraft from missiles, portable anti-aircraft missile systems due to shielding infrared radiation from the aircraft engine by creating a cooled flue behind the aircraft plume contains air intake housing, air intake nozzles and cruciform attachment of air intake to housing d mogeneratora.

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