Silencer

Abstract

The present invention relates to a silencer for a firearm, where the silencer comprises an attachment part and a muzzle part, where at least one intermediate module element is arranged between said attachment part and muzzle part, where each of said attachment part, at least one intermediate module element and muzzle part comprises an outer sleeve portion which outer sleeve portion form a part of an outer surface of the silencer, said at least one intermediate module element further comprises an inner sleeve portion and a core portion, which inner sleeve portion form a part of an inner surface of the silencer, said core portion comprising a throughgoing bore, said outer sleeve portion and inner sleeve portion being connected through a radial part, said radial part being provided with a plurality of throughgoing openings around its periphery, wherein, when the silencer is assembled, said outer sleeve portions and inner sleeve portions form a volume defining a first passage for exhaust gases, and said inner sleeve portions and core portions form a volume defining a second passage for exhaust gases.

Claims

1. A silencer for firearms comprising an attachment part and a muzzle part , where at least one intermediate module element is arranged between said attachment part and muzzle part, wherein each of said attachment part, at least one intermediate module element and muzzle part comprises an outer sleeve portion which outer sleeve portion form a part of an outer surface of the silencer, said at least one intermediate module element further comprises an inner sleeve portion and a core portion, which inner sleeve portion form a part of an inner surface of the silencer, said core portion comprising a throughgoing bore, said outer sleeve portion and inner sleeve portion being connected through a radial part, said radial part being provided with a plurality of axial throughgoing openings around it's periphery, wherein, when the silencer is assembled, said outer sleeve portion and inner sleeve portion form a volume defining a first passage for exhaust gases, and said inner sleeve portion and core portion form a volume defining a second passage for exhaust gases.

2. A silencer according to claim 1, wherein each of the attachment part and the muzzle part comprises a radial part provided with a plurality of axial throughgoing openings around a periphery of said radial part and a center opening.

3. A silencer according to claim 2, wherein each of the attachment part and the muzzle part, on an inside of the outer sleeve portion, is provided with a threaded portion.

4. A silencer according to claim 1, wherein the inner sleeve portion and the core portion of the intermediate module element extend outward in one direction from the radial part, and the outer sleeve portion extend outward in an opposite direction from the radial part.

5. A silencer according to claim 1 or 4, wherein the intermediate module element, on an inside of the outer sleeve portion, is provided with a threaded portion, and on an outside of the radial part, is provided with a threaded portion.

6. A silencer according to claim 5, wherein the core portion of the intermediate module element, around a periphery of the core portion, is provided with a plurality of radial throughgoing openings, the plurality of radial throughgoing openings forming a connection with the throughgoing bore.

7. A silencer according to claim 1, wherein the plurality of axial throughgoing openings are angled over a material of the radial part.

8. A silencer according to claim 6, wherein the plurality of radial throughgoing openings are provided forming an angle with the throughgoing bore.

9. A silencer according to claim 1, wherein a diameter of the inner sleeve is larger than a diameter of the core portion.

10. A silencer according to claim 1, wherein outer sleeve portion of the attachment part has a tapered form.

11. A silencer according to claim 1, wherein the radial part of the attachment part and the intermediate module element, on one side, is provided with an abutment portion for a barrel of a firearm, or an inner sleeve of a previous attachment part or intermediate module element.

12. A silencer according to claim 1, wherein the plurality of radial throughgoing openings have a circular, oval, polygonal or square shape.

13. A silencer according to claim 1, wherein each of the plurality of axial throughgoing openings is formed by one single opening or by two or more partial openings.

Description

[0034] FIG. 1 shows a silencer 1 for firearms according to the present invention in an assembled state, where the silencer 1 comprises an attachment part 2, three intermediate module elements 3 and a muzzle part 4 that are connected to each other in appropriate ways. With such a module-based arrangement of the silencer 1, the length of the silencer 1 can be adjusted and thereby the effect thereof.

[0035] The different parts 2, 3, 4 are arranged in alignment with each other and have a common center axis 6 extending over a length of the silencer 1. The attachment part 2 can be releasably connected to a barrel of a firearm (not shown) or to attachment element(s) (not shown) arranged on the barrel of the firearm.

[0036] Although the silencer 1 is shown to comprise three intermediate module elements 3, it should be understood that the silencer 1 according to the present invention could comprise fewer intermediate module elements 3, for instance one or two, or more intermediate module elements 3, for instance four or more.

[0037] The firearm may, for example, be an automatic or semi-automatic rifle or the like.

[0038] According to the present invention, each of the attachment part 2, each intermediate module element 3 and muzzle part 4, see also FIG. 2, comprises an outer sleeve portion 2A, 3A, 4A, each of the outer sleeve portions 2A, 3A, 4A forming a part of an outer surface of the silencer 1, and together form the outer surface of the silencer 1 when the silencer 1 is assembled.

[0039] Each of the intermediate module element 3 comprises further an inner sleeve portion 3B and a core portion 3C, where each of the inner sleeve portions 3B forms a part of an inner surface of the silencer 1 when the silencer 1 is assembled.

[0040] A throughgoing bore 3D is formed in each of the core portions 3C of the intermediate module element(s) 3.

[0041] Furthermore, each of the attachment part 2 and the muzzle part 4 comprise a radial part 2E, 4E provided with a plurality of axial throughgoing openings 2F, 4F around a periphery of the radial part 2E, 4E and a center opening. The plurality of axial throughgoing openings 2F, 4F may be arranged with a same distance between them, but it should be understood that the axial throughgoing openings 2F, 4F could be arranged with different distance between then, at least for some of the axial throughgoing openings 2F, 4F.

[0042] The outer sleeve portion 3A and the inner sleeve portion 3B of each intermediate module element 3 are connected to each other through a radial part 3E.

[0043] Furthermore, a plurality of axial throughgoing openings 2F are provided around a periphery of the radial part of the attachment part 2, and a plurality of axial throughgoing openings 3F are provided around a periphery of the radial part 3E of each intermediate module element 3.

[0044] Exhaust gases can then through the above arrangement of the respective outer sleeve portions 2A, 3A, 4A of the attachment part 2, the intermediate module element(s) 3 and the muzzle part 4 together with the inner sleeve portions 3B of the intermediate module element(s) and the radial parts 2E, 3E, 4E of the attachment part 2, the intermediate module element(s) 3 and the muzzle part 4 escape through the plurality of axial throughgoing openings 2F, 3F, 4F from one part or element to a subsequent part or element, for instance from the attachment part 2 and to a subsequent following intermediate module element 3, from the intermediate module element 3 and to the subsequent following intermediate module element 3 or from an intermediate module element 3 to a subsequent following muzzle part 4, whereafter the exhaust gasses can escape out from the silencer 1 through the axial throughgoing openings 4F of the muzzle part 4.

[0045] When the silencer 1 is assembled, the outer sleeve portions 2A, 3A, 4A of the attachment part 2, the intermediate module element(s) 3 and the muzzle part 4, with the inner sleeve portions 3B of the intermediate module element(s) 3 will form a volume or cavity defining a first passage for exhaust gases, and the inner sleeve portions 3B and the core portions 3C of the intermediate module element(s) 3 will form a volume or cavity defining a second passage for exhaust gases through the silencer 1.

[0046] Through the above arrangement of the silencer 1, the exhaust gases after firing of a cartridge or shell from a firearm (not shown), will enter into a volume or cavity formed in the attachment part 2 of the silencer 1, where the exhaust gases are expanded in this volume or cavity, whereafter a part of the expanded exhaust gases will be forced and compressed through the axial throughgoing openings 2F provided around the periphery of the radial part 2E of the attachment part 2 and thereafter guided into a volume or cavity formed in the subsequent following intermediate module element 3. At the same time, a part of the expanded exhaust gases will be forced and compressed through the center of the attachment part 2 and thereafter guided into the throughgoing bore 3D of the subsequent following intermediate module element 3. A rest part of the expanded exhaust gas will be forced back and out of the volume or cavity formed in the attachment part 2, where this rest part of the expanded exhaust gases will be utilized as means to operate the action of the host firearm.

[0047] The process will be repeated in the subsequent following intermediate module element 3, where the exhaust gases once again are expanded in the volume or cavity formed in this intermediate module element 3 and thereafter forced and compressed through the axial throughgoing openings 3F provided around the periphery of the radial part 3E of this intermediate module element 3 and guided into a volume or cavity formed in the subsequent following muzzle part 4, if the silencer 1, for example comprises only one intermediate module element 3, where the exhaust gases will escape out from the muzzle part 4 of the silencer 1 through the axial throughgoing openings 4F provided in the muzzle part 4. At the same time, the part of the exhaust gases that is guided into the cavity formed between the core portion 3C and the inner sleeve portion 3B of this intermediate module element 3, will escape out from the muzzle part 4 through the throughgoing bore 3D of the core portion 3C of this intermediate module element 3.

[0048] If the silencer 1 comprises two or more intermediate module elements 3, then the exhaust gases will be expanded once again in each intermediate module element 3 as described above and thereafter forced and compressed through the axial throughgoing openings 3F provided around the periphery of the radial part 3E of this intermediate module element 3 and guided into a volume or cavity formed in the subsequent following muzzle part 4. At the same time, the part of the exhaust gases that are guided into the cavity formed between the core portion 3C and the inner sleeve portion 3B of this intermediate module element 3, will escape out from this intermediate module element 3 and into the subsequent following intermediate module element 3 and eventually out from the muzzle part 4 through the throughgoing bore 3D of the core portion 3C of the adjacent intermediate module element 3.

[0049] The respective inner sleeve portion 3B and the core portion 3C of each of the intermediate module elements 3 are extended outward in one direction from the radial part 3E, and the outer sleeve 3A extends outward in an opposite direction from the radial part 3E. Through this arrangement, when for instance an attachment part 2 is connected or assembled to a subsequent following intermediate module element 3, the outer sleeve portion 2A of the attachment part 2 will extend over the inner sleeve portion 3B of the subsequent following intermediate module element 3. Similarly, the inner sleeve portion 3B and the core portion 3C of this intermediate module element 3 will extend into the outer sleeve portion 3A of a subsequent following intermediate module element 3 or into a subsequent following muzzle part 4.

[0050] The attachment part 2 and the intermediate module element 3 are, on an inside of the outer sleeve 2A, 3A, provided with a threaded portion, while an outside of the radial parts 3E of the intermediate module elements 3 are provided with a threaded portion.

[0051] Furthermore, the core portion 3C of the intermediate module element 3, around a periphery of the core portion 3C, is provided with a plurality of radial throughgoing openings 3G, where the plurality of the radial throughgoing openings 3G form a connection with the throughgoing bore 3D of the intermediate module element 3.

[0052] The present invention has now been explained with reference to embodiments, but a person of skill in the art will understand that changes and modifications could be made in relation to these embodiments within the scope of the invention as defined in the following claims.