AIR-DYNAMIC UNIT OF GUIDED MISSILE CONTROL ACTUATOR Russian patent published in 2001 - IPC

FIELD: actuator control systems of missiles. SUBSTANCE: the air-dynamic unit of guided missile control actuator has control surfaces and control actuators kinematically linked with one another. The control actuators are made with a labyrinth packing between the piston and cylinder in the form of at least two square-section grooves on the piston. The actuation cylinder piston is hollow on both sides. A cylindrical lug with an outside thread and a taper hole from the inside is made in the center of the piston on the side of the rod, and a sphere is made in the rod combined by a union nut with a cone on the inner side of the bead and an axial play. The dimensions of the piston, the number and dimensions of the grooves, the value of the clearance between the piston and cylinder, as well as the value of the axial play are determined according to the relations given in the description. EFFECT: simplified construction and enhanced power and reliability of operation of the control actuator. 3 dwg