RU8104U1 - Flame arrester - Google Patents

Abstract

A small arms flame arrester comprising a housing with a cylindrical channel and a conical part, in which through radial slots are made expanding in the radial direction, characterized in that the slots are simultaneously axially expanding in the form of an expanding drop-shaped profile.

Description

Arms flame arrester.

The utility model relates to small arms) and may find application as an effective flame arrester having small long gaearites.

Known flame arrester d /: I am a small arms with a bunk: one barrel with two cylindrical body. parts (Patent SUA N46 64O14i CL.NKI 89 / 14.2. The first part of the flame arrester is made of a skylight cylindrical hole.: the second part of the arrester has a conical outlet that extends from the muzzle to the outside and reaches the rawatee dimension of the SHSSUHsro to the diameter of the cylindrical flame case. Along era lengths, made of radial grooves with a v-shaped cross-sectional shape. Moreover, paaaajibHbiS slots In; psh ;; not -1Y so oyraesk that the outer end of the arrester, you get, open.

From the point of view, expired, such a flame arrester is effective. But the requirements for combat weapons (Hanpjinep muzzle throws) make it necessary to have the front end of any muzzle

closed devices .. Of muzzle muzzle artillery gun toomoa

(see Artillery armament, under the editorship of I.I. Zhukov M., Mechanical Engineering, 1975, p.64) containing krrpusV - having conical and cylindrical parts. The conical part has through windows. the shape of the window expands axially as it moves away from the muzzle of the barrel and

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ends with a vertical straight wall. The cylindrical color of the muzzle brake in this case has rectangular windows.

When the specified muzzle brake is operating, smoothly expanding gas in the first and second parts of the muzzle brake encounters a vertical wall. special pressure in the firing zone - intex: 4internal glow of the gas-jet. This design is applicable only as a muzzle brake5, but it does not fulfill the task of a flame arrester and sound suppression.

The flame arrester is known to contain 4 cylindrical housing J states of two parts of a cylindrical and conical. (German Patent NlibSOSS, class PKI F4iC 21 / iS 72a) 28)). On the body along its length there are made radial cuts having the shape of an elongated ellipse.

From the point of view of the flow of gas streams from the flame arrester1 in the first half of the slot having the shape of an elongated expanding ellipse1, the width of the fir trees is commensurate with the central channel and the gas can effectively flow out in the lateral (radial) direction due to the presence of radial hoists having a V-shape in cross section and in the longitudinal (axis) direction due to the presence of the conical part of the arrester.

In the second half of the gap (in the direction of the axis of the bore), the width of the brow along the ellipse curve is narrowed, and therefore the process of expiration of the gas stream is difficult and, therefore, out of the central volume, the gas loses its ability to freely spread and flow to the side. Part

gas will continue to move along the central cone while maintaining dagleniye will run into the side walls and slow down causing the gas jet to glow and without reducing sound.

The objective of the proposed useful MOD-R of the flame arrester is the most complete gamma mjnjRarvteHw muzzle and sound reduction on the arrow with the minimum dimensions of the muzzle device.

To solve this problem, the flame arrester contains a housing with a cylindrical and conical part in which through radial targets are made) expanding in the radial direction. What is new in the claimed flame arrester is that along with the expansion in the radial direction, the through holes are made of the axle ir K cisim in the axial direction and have an expandable drop-shaped profile.

Owing to such a reduction in the arrester, conditions have been created for its constant plasma free expansion and calmer expiration from the barrel. TVI conditions are created by providing a proportional expansion of the arrester and gas vent circuit in all three directions as the gas moves:

1- expansion in the form of a cone of the Central hole;

2- expansion in the axial direction of the guture, a drop-shaped expanding contour of the slit;

3 alignment in the radial direction of the contour of target 1 i.e. a constant increase in the perimeter of the target as you move away from the axis of the barrel.

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Due to this, flame and sound level are significantly reduced.

The useful mod-pe is illustrated by the drawings:

on fmg.1 - and depicts a General view of the flame arrester, figure 2 - raerez along AA on fmg, 1.

The fire arrester of the small arms has a short cylindrical part 1 and a conical wide part) part 2. 8 of the conical part have radial slots 3. They are made radial. They are bi-directional 7 x: in the axial direction (the angle is teardrop-shaped) and in the radial direction (nocTOS5HHoe increase the contour of the chain as offsets from the CTBOJ axis a.

During the shot, the gas flow exiting from the borehole passes through the cylindrical channel 1 of the flame arrester and moves along the conical part 2 of the flame arrester to the outlet, expanding and being divided along the periphery by jumpers located between slots 3. This part of the gas exiting through 4 lei has a drop-shaped mold in the cross section V - figuratively expanding scattered in the lateral directions in the direction of its movement.

Axially expanding drop-shaped contour

targets provides a more uniform separation of the gas stream and a smoother outflow of gas in the longitudinal and radial directions, as a result of which the flame of the shot is eliminated and the sound level is significantly reduced at small dimensions of the flame arrester.

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Claims (1)

A small arms flame arrester comprising a housing with a cylindrical channel and a conical part, in which through radial slots are made expanding in the radial direction, characterized in that the slots are simultaneously axially expanding in the form of an expanding drop-shaped profile.