ELECTROMAGNETIC UNIT OF GUIDED MISSILE CONTROL ACTUATOR Russian patent published in 2006 - IPC F42B15/01 F15B15/14 

FIELD: armament.

SUBSTANCE: the electromagnetic unit of the guided missile control actuator has two plunger electromagnets consisting of magnetic circuits with poles, coils whose control windings are made on a framework, and interconnected armatures and connected to the actuating mechanism. Each armature has a tie-rod passing through a hole in the magnetic circuit pole. The armatures are linked kinematically due to a hinge joint of the tie-rod of each armature to the link fixed on the control surface shaft, and installed inside the rings of a non-magnetic material with a clearance making it possible for the armatures to run through at their longitudinal travel for provision of the maximum angle of control-surfaces deflection at a functioning of the control actuator. The values of the clearances between the armature and the ring, between the tie-rod and the walls of the hole in the plow, as well as between the armature and the winding framework should satisfy a definite condition.

EFFECT: simplified construction of the control actuator, provided minimal inertia load on it.

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