NOSE FUSE Russian patent published in 2004 - IPC

FIELD: remote combination double-action (impact and time) fuses operating as a result of inertia movement of mechanisms at an impact with an obstacle and on expiration of the preset time interval from the moment of the shot, determined by combustion of the powder element of the self-destruction mechanism.

SUBSTANCE: the nose fuse for small-caliber artillery cartridges has a body, in which coaxially in succession positioned are the central rod pressing the end of the tapered fairing by the supporting head, axial firing pin, primer cap, shutter of the fire-transfer channel with a powder charge, delay pellet plug and a safety device of the radial detonating cap coupled by means of a pyrotechnic channel to the self-destruction pricking mechanism, a peripheral annular groove with radial inclined slots is made in the body under the tapered fairing positioned in which are the balls of the impact reaction mechanism of the axial firing pin resting on the helical lock of the inertia cocking mechanism positioned inside the movable bushing installed over the annular groove of the mounting support. The novelty is in the fact that the central rod is provided with a communication channel closed with a membrane by means of through ports of the body with a peripheral annular groove under the tapered fairing.

EFFECT: enhanced functional reliability of the nose fuse, universality of action of the impact reaction mechanism of the axial firing pin at an impact of shells with obstacles of various stiffness.

2 dwg, 1 ex