公开(公告)号：US11067354B2

公开(公告)日：2021-07-20

申请号：US16613630

申请日：2017-05-17

Applicant: SAAB AB

Inventor： Mathias Lindström ,  Peter Karlsson ,  Göran Backlund ,  Ingrid Söderquist

IPC: F41A21/30 ,  F41A1/08 ,  F41A21/28 ,  F41A21/34 ,  F41A21/36 ,  F41F3/045

Abstract: A breech for noise reduction in a recoil-less weapon is described. The breech is adapted to be arranged in fluid communication with a launcher of the weapon to release exhaust gas. The breech comprises a venturi tube. The venturi tube has an inlet at a first end adapted to be connected to the launcher, and an outlet for releasing the exhaust gas at a second end, wherein the area of the outlet is larger than the area of the inlet. The venturi tube further comprises an exhaust gas controlling element formed at the venturi tube structure. The exhaust gas controlling element is arranged to control the release of exhaust gas so as to decrease a sound pressure peak at the weapon. The inner envelope surface of the venturi tube is configured, such that the inner envelope surface does not alter or at least has a very small influence on recoil characteristics of the weapon.

公开(公告)号：US11280586B2

公开(公告)日：2022-03-22

申请号：US16494029

申请日：2017-03-15

Applicant: SAAB AB

Inventor： Christian Olsson ,  Sven Lindh ,  Peter Karlsson

IPC: F41G11/00

Abstract: The present invention relates to an arrangement for improving shooting accuracy of a weapon comprising i) a barrel 13, ii) at least one component iii) a holding device mounted on said barrel 13, said holding device comprising means for holding 1a said at least one component allowing said at least one component to be displaced relative to and in parallel with the barrel and the means for holding from 1 mm to 200 mm during which displacement said at least one component does not absorb any substantial recoiling forces.