VALVE MECHANISM FOR AIRGUNS (VERSIONS) Russian patent published in 2019 - IPC F41B11/72 

FIELD: weapons and ammunition.

SUBSTANCE: invention relates to airguns. Valve mechanism comprises valve, unloading bushing, valve stem, sealing elements, spring and plug. When the firing trigger is depressed, the trigger strikes the valve stem, the valve moves away from the sealing element and compresses the spring. Air is directed to the gun barrel. In one version, through the longitudinal hole in the body of the valve, air passes into the cavity of the valve and unloading bushing, than forces from air pressure acting on the valve are leveled. In the second version, air enters the barrel through the longitudinal bypass channel in the valve body. In the third version, an elastic bushing is used to compensate forces acting on the valve. Valve actuation force can be adjusted by means of compression spring of compensating sleeve by plug.

EFFECT: possibility of obtaining arbitrary force of valve opening at any diameter of valve passage opening.

3 cl, 6 dwg