HEAD FUSE Russian patent published in 2021 - IPC F42C1/04 F42C19/06 

FIELD: armament.

SUBSTANCE: invention relates to impact-type fuses triggered when encountering an obstacle; it is intended for ammunition dropped from aircrafts that have been in contact with the atmosphere for a long time. A head fuse contains an executive detonator mounted coaxially to a fire transfer channel, a firing pin interacting with shock levers equipped with an inertial drive, including a pressure cap connected to a lid, a long-range cocking mechanism, a locking rod of which is based on a layered charge of pyrotechnic compositions, which communicates with an ignition node, and which is geometrically closed with a slide valve carrying a detonator capsule, all placed in a case closed vertically by a movable lid. The pressure cap of the firing pin is equipped with an annular seal of contact abutment to the case from the inside, fixed on a convex lid, which is pressed against the end of the case by means of a coaxial threaded cap, when being in official use. An amplifier of detonating composition is installed in the fire transfer channel to the executive detonator, under the slide gate.

EFFECT: technical solution ensures the conditional tightness of the fuse volume and its complete safety in official use, providing increased sensitivity when meeting at angles with various obstacles.

2 cl, 3 dwg