RU2517549C1 - Passive jam ejector - Google Patents

Abstract

FIELD: aircraft engineering.

SUBSTANCE: proposed device comprises box-like case rigidly secured at aircraft airframe to carry electronic module for generation of jam cartridge actuating pulses and replaceable cassette fasteners, device to transmit said jam cartridge actuating pulses and jam cartridge device guides. Note here that the base of said base has the assemblies of fasting of said case to aircraft and assemblies of replaceable contact modules. Protective controlled flaps are arranged at the case outer surface. Linear electric drives are mounted at the case sidewalls to open said flaps before ejection of jam cartridges and to close than after ejection. Jam cartridge guides are composed by a set of replaceable cassettes including seats of jam cartridges of various design and purpose. Said device to transmit said jam cartridge actuating pulses is composed of the set of assemblies of replaceable contact modules with contact assemblies. The latter comprises three spring-loaded contacts to allow the electric contact with appropriate jam cartridge. Note here that the number and location of contact assembly in replaceable contact module complies with those of jam cartridge in replaceable cassette.

EFFECT: higher efficiency of protection against guided missiles.

4 dwg

Description

The claimed invention relates to a device for the emission of passive interference, which is intended to protect aircraft from guided missiles, the principle of operation of which (the device) is based on the shooting of jamming cartridges that create directional jamming for homing missiles with the aim of "dazzling" and moving away from the trajectory of the defeat of the aircraft apparatus.

From US patent No. 4063485, class F41F 3/00, 1977, a technical solution is known relating to a jamming system for protecting aircraft from homing missiles, comprising, in particular, an emission unit for pyrotechnic charges creating passive interference. The specified unit includes a supporting beam made in the form of a body electrically connected with the aircraft side, the body is divided into sections provided with guides, each section being designed to accommodate, with the possibility of removal, a multiple-charge interchangeable cartridge containing mounting places for placement in charges, moreover, the mounting places are made in the form of guiding launch tubes, with each section provided with electric means for igniting the charge.

From US patent No. 5400690, class F41F 3/042, 1994, a technical solution is known relating to a multi-charged receiver of pyrotechnic cartridges, which is a case with slots for accommodating pyrotechnic cartridges, pyrotechnic units are mounted in the case and electric ignition devices are placed.

From the patent of the Russian Federation No. 99610, class F41H 11/02, 2010, a technical solution is known relating to the ejection unit, which is intended for use in passive jamming devices for comprehensive protection of aircraft from guided missiles, the principle of operation of which (devices) is based on the shooting of interference cartridges that create a directional jamming for homing missiles with the aim of "blinding" and withdrawal from the trajectory of the aircraft. The specified ejection unit contains a box-shaped housing rigidly fixed to the aircraft, a removable cassette mounted in the casing, made in the form of a frame, while the mounting locations for the jamming cartridges in the cartridge are formed by the walls of the holes made in the upper and bottom parts of the cartridge, respectively, and forming guides for the jamming cartridges, cassette clips relative to the housing, the pulse feed means for operating the jamming cartridge is made in the form placed on the bottom of the housing and inter Procedure with electronic pulse distributor contact groups, each contact which is spring-loaded and cooperates with the corresponding interfering cartridge, the cartridge is completely positioned within the beam.

This technical solution was taken as the closest analogue, which has the following significant disadvantages. In particular, the pulse supply means for operating the jamming cartridge is made in the form of a contact group located on the lower part of the housing and interacting with the electronic pulse distributor, each contact of which is spring-loaded and interacts with its corresponding jamming cartridge. This design of the ejection unit does not allow, using the entire internal space of the ejection unit, to install in it an increased number of jamming cartridges of another design and functional purpose and, as already noted, does not allow to increase the efficiency of protection of aircraft from guided missiles, as well as when jamming cartridges are triggered depressions are formed on the outer surface of the aircraft, which significantly impair the aerodynamic characteristics of the aircraft’s flight pparata and reduce reliability of the device because of the possible ingress block precipitation such as rain, snow, hail, and dust and sand.

The technical problem to be solved by the claimed invention is directed is the creation of a passive interference emission device that provides effective protection of aircraft from guided missiles.

The technical result for which the invention is intended is the elimination of the above disadvantages inherent in the closest analogue, aimed, in particular, to increase the efficiency of protection of the aircraft from guided missiles, the reliability of the design while ensuring high aerodynamic characteristics of the protected aircraft.

This technical result is achieved in that the passive interference emission device comprises a box-shaped body rigidly fixed to the aircraft with an electronic pulse shaping module mounted thereon for triggering jamming cartridges and attachment units for removable cartridges, an electric pulse transmitting device for triggering jamming cartridges, guiding devices jamming cartridges, characterized in that at the base of the hull there are nodes for attaching the hull to the aircraft arata and attachment points for interchangeable contact modules, protective guided flaps are placed on the upper surface of the enclosure, translational-type electric drives are installed on the side walls to open the flaps before firing jamming cartridges and closing them after the shooting is completed, the guiding devices of the jamming cartridges are made in the form of a set of removable cartridges, containing installation sites for placement of jamming cartridges of various design and functional purpose, device cottages electrical impulse to trigger the disturbance cartridges designed as a set of interchangeable modules providing electromechanical interfering contact with the corresponding cartridge, with the number and location of each contact assembly to contact a removable module corresponds to the number and location of interfering replaceable cassette cartridges.

The developed invention is presented in figure 1, where "a" is a body with closed protective flaps, view 3/4; "B" - the case with open protective wings, view 3/4; in figure 2, where "a" is a removable contact module to ensure the use of jamming cartridges of caliber 50 mm with contact nodes 9, 3/4 view, "b" is a removable contact module to ensure the use of jamming cartridges of caliber 2 × 1 inch or 48 jamming cartridges of caliber 1 × 1 inch; in figure 3, where "a" is a removable cartridge for accommodating 14 jamming cartridges of caliber 50 mm; "B" - a removable cartridge for placement of 24 jamming cartridges of caliber 2 × 1 inch; “C” - interchangeable cartridge for placement of 48 jamming cartridges of caliber 1 × 1 inch; in figure 4, where "a" is the housing assembly with a removable contact module and closed protective flaps, view 3/4; “B” - the case assembly with a removable contact module installed by a removable cassette and open protective flaps, view 3/4.

As follows from figure 1, the hull 1 (view "a") is rigidly fixed to the aircraft through the attachment points 2, on the upper surface of the hull there are protective guided flaps 3 flush with the skin of the aircraft, which ensures its high aerodynamic characteristics, are installed on the side walls electronic modules for generating a pulse 4 and a translational type 5 electric drive (FIG. 1, view “a” and “b”), providing opening / closing of the valves. In the lower part of the casing there are attachment points for removable contact modules 6, and on the upper part of the casing there are attachment points for replaceable cassettes 7 (Fig. 1, view “b”).

Inside the housing 1, depending on the type of jamming cartridges used, interchangeable contact modules (FIG. 2, views “a”, “b”) and interchangeable cartridges (FIG. 3, views “a”, “b”, “c”) are placed, containing installation locations for jamming cartridges 8 (figure 3, types "a", "b", "c"). These interchangeable cartridges are made in the form of a frame, which reduces the weight of the cartridge and the entire device as a whole. The design of removable cartridges is designed to accommodate 14, 24 and 48 jamming cartridges, respectively.

Interchangeable contact modules (figure 2, types "a", "b") are designed to interact with jamming cartridges, while the number of contact nodes included in them is equal to the number of mounting locations that are located in the corresponding interchangeable cartridges.

The contact node 9 (figure 2, view "a"), which is part of the contact group, contains three spring-loaded contacts, which ensures constant contact with the jamming cartridge under the dynamic effects of aircraft flight. The central contact 10 (figure 2 view "a") is designed to transmit an electrical impulse to trigger the electrocapsule sleeve of the jamming cartridge. The middle contact 11 is designed to transmit from the electrocapsule sleeve an electrical signal that determines the type of jamming cartridge. The external contact 12 is designed to transmit an electrical impulse for the operation of an electroflammable capsule of an interfering cartridge.

The device operates as follows.

The passive interference emission device is equipped in the following sequence:

- an electrical signal is supplied to open the protective flaps;

- depending on the caliber of the jamming cartridge planned for use (50 mm, 2 × 1 inch or 1 × 1 inch), a removable contact module is installed in the base of the housing, which is fixed in the attachment points;

- the corresponding removable cartridge is equipped with jamming cartridges;

- the equipped replaceable cartridge is inserted into the device case and is fixed in fastening nodes;

- an electrical signal is supplied to close the protective flaps.

The device is ready to go.

When applying power to the device equipped with jamming cartridges, the electronic pulse generating modules 4 through the contact nodes 9 supply power to the electrocapsule bushings of the jamming cartridges. Electrocapsule cartridge sleeves through contacts 10, 11 of contact nodes 9 form electrical impulses characterizing their type and readiness for work, into electronic pulse forming modules 4.

When an electrical signal arrives at the shooting of jamming cartridges by the electronic module 4, electrical impulses are generated on the electric drives to open the protective flaps and on the contacts 10, 12 of the contact nodes 9 of the selected jamming cartridges, the flaps open and the corresponding jamming cartridges are triggered, as a result of which its contents are ejected to the outside of the ejection unit, away from the aircraft, while creating directional jamming for homing missiles aimed at the aircraft th device. After the shot by the electronic module 4, an electric signal is generated on the electric drives to close the protective flaps, and the flaps are closed.

Claims (1)

The passive interference emission device comprises a box-shaped body rigidly fixed to the aircraft with an electronic pulse shaping module mounted thereon for triggering jamming cartridges and attachment units of removable cartridges, an electric pulse transmitting device for triggering jamming cartridges, guiding devices of jamming cartridges, characterized in that the base of the hull has attachments for attaching the hull to the aircraft and nodes for interchangeable contact modules, on the upper surface of the hull and protective guided flaps are placed, translational-type electric drives are installed on the side walls, which ensure that the flaps open before the jamming cartridges are fired and close them after the shooting is completed, the jamming cartridge guides are made in the form of a set of removable cartridges containing mounting places for the placement of jamming cartridges of various design execution and functional purpose, the device for transmitting an electric pulse for the operation of jamming cartridges is made in de set of replaceable contact units with contact assemblies comprising three spring-loaded contact and providing an electromechanical contact with the corresponding interfering cartridge, the number and location of each contact assembly to contact a removable module corresponds to the number and location of cartridges of jamming in a removable cassette.

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