RU2465175C1 - Device for lead-in cable burning - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: invention relates to aircraft, more particularly to device for lead-in cable burning. The device contains housing with through hole via which led-in cable passes, ordnance items installed radially on the housing around axis of through hole with possibility to create high-temperature gas jets burning-out the lead-in cable.

EFFECT: higher operation reliability, optimisation of weight and dimensional characteristics and simplification of burning device design.

4 dwg

Description

The cable cable burning (separation) device (invention) relates to vehicles, in particular to aircraft, and specifically to devices for dumping towed objects for various purposes (for example, targets) after the end of the towing program or when emergency situations occur during towing.

A pyrotechnic device is known [1] (Special Technique Magazine No. 1, 2002, Petrenko ES Equipment, tools and devices for manual clearance) separating (burning) stretch marks using a source of high-temperature gases such as a raised beam. The pyrotechnic device is located near the mine stretch and, after use, burns it.

The disadvantage of the pyrotechnic device [1] is the low reliability and low efficiency of the device due to the significant dispersion of the energy of high-temperature gases.

A pyrotechnic device (prototype) is known [2] (B.V. Grabin, O. I. Davydov, V. I. Zhikharev, and others. Fundamentals of the design of spacecraft launch vehicles. M: Mechanical Engineering, 1991, p. 357, fig. .10.33), which uses the energy of gases to separate the cable by converting it into a knife, which cuts the cable through a through hole in the device.

The disadvantage of the described device [2] is its structural complexity and low reliability due to the presence of moving parts.

The invention is aimed at optimizing the mass-dimensional characteristics, simplifying the design and improving the reliability of the device.

This is achieved by the fact that N pyrotechnic elements are introduced into the device with the possibility of creating jets of high-temperature gas after simultaneous activation, radially located around the hole through which the tow cable is passed.

The towing cable cable separation device differs from the known technical solution comprising a housing with a through hole through which the cable cable and pyrotechnic elements are passed, in that N pyrotechnic elements with the possibility of creating high-temperature gas jets are radially mounted around the axis of the through hole.

The set of essential features that distinguish the invention from the prototype, provides a simplification of the design and increase the reliability of the separation device of the towed object.

The invention is illustrated by drawings: figure 1 - a device for burning a towing cable; figure 2 is a section aa of the described burning device; figure 3 is a drawing of an experimental layout; and FIG. 4 is a diagram of one of the possible uses of a burning device.

The device for burning a towing cable (Fig. 1) contains: a housing 1 with a through hole 4 for passing the cable, pyrotechnic elements 2 and cable 3.

Figure 1 shows a burning device using N = 6 pyrotechnic elements 2 installed in seats radially located around the axis of the through hole 4 of the housing 1, and triggered when activated.

The operation of the burning device (Fig. 1, Fig. 2) consists in creating a high temperature in the area of the hole through which the tow cable 3 is passed, after applying an external electric signal to activate N pyrotechnic elements 2. In this case, the energy of the jets of high-temperature gas emitted pyrotechnic elements 2, burns out the cable cable.

Experimental verification of a simplified layout of the burn-out device (Fig. 3) confirmed its operability. The cable was burned, the electric part of which contained 9 copper wires with a total cross section of up to 1.1 mm ² , and the power part was made of Kevlar with a breaking strength of up to 350 kg. The plugs 5 in figure 3 are intended for the operational change in the number of pyrotechnic elements in the process of experimental verification of the reliability of burning cable cables with various electrical and power characteristics.

In the diagram (Fig. 4) of one of the possible applications of the ignition device, the towing of the air target 7 behind the towing aircraft 6 is shown. At the end of the towing program, an electrical signal is supplied to activate the ignition device, through which the cable-cable 3 is passed through the hole and the cable the target.

Information sources

1. Magazine "Special equipment" No. 1, 2002, Petrenko Evgeny Sergeevich. Equipment, tools and devices for manual clearance.

2. B.V. Grabin, O. I. Davydov, V. I. Zhikharev, and others. Fundamentals of the design of spacecraft launch vehicles. M .: Engineering, 1991, p. 357, fig. 10.33.

3. Alexey Zaitsevsky, 2009, http://www.myresearch.lt. Pyrotechnics on board RU models. General information.

4. The journal ZVO No. 10/2001. The results of military tests of the carrier-based fighter-attack fighter F / A-18E Super Hornet Major S. Nitskevich.

5. Description of the invention to the copyright certificate SU No. 532221, B64D 17/72, Bull. No. 4, 02/09/95.

6. Description of the invention to the patent of the Russian Federation RU No. 2067280, F41J 9/10, B64D 3/02.

Claims (1)

A burning / separation / towing cable device comprising a housing with a through hole through which the cable is passed and pyrotechnic elements, characterized in that N pyrotechnic elements with the possibility of creating high-temperature gas jets are radially mounted around the axis of the through hole.

Images