PERMANENT-MAGNET PULSE GENERATOR Russian patent published in 1999 - IPC

FIELD: rocketry, applicable for actuation of electric primers of rocket launcher and on-board systems. SUBSTANCE: permanent-magnet pulse generator consisting an upper and lower magnetic circuits with a pair of poles on each magnetic circuit in the form of horns in the middle part arranged against each other, magnets, a coil located between the poles of the magnetic circuits, and an armature located in the coil central hole and adjoining the crosswise lying poles of the upper and lower magnetic circuits, and a driving mechanism in the form of a rod made of non-magnetic material positioned in aligned holes of the upper and lower magnetic circuits on the coil outside, and an accelerating spring located in the rod central hole and engaged with the armature end passing through the longitudinal central groove of the rod into the central hole and engaged with the rod lateral grooves by a pin, the middle part secured on this armature end; the rod central hole is made as a through one, and one end of the hole is threaded and accommodates a governor engaged with the rod by thread, one end of the governor faces the free end of the rod hole and has a mating part for a tool, the other end of the accelerating spring bears on the other end of the governor; spring stiffness and geometric and power parameters of the permanent-magnet system are bound up by a definite relationship. EFFECT: prevented influence of spread of force of armature separation from the poles of the magnetic system at manufacture of the pulse permanent-magnet generator and in its service. 4 dwg