CONTROL ACTUATOR Russian patent published in 2000 - IPC

FIELD: rocket-space equipment control aids. SUBSTANCE: the actuator has a three-gear pump, relay, rocker and slide valves attached to the rocker by means of a flexible wire rod. The slide valves are positioned in the hollow axles of the pump, and the end of the wire rod, opposite the slide valve, is fastened in a stem linked with the rocker. Tube couplings, according to the number of slide valves, are introduced in the actuator and installed in the plane of the pump axes. The couplings have slots parallel to the axis of rotation of the rocker, each stem is installed in the coupling hole in a spaced relation to its walls, and is provided with cylindrical lugs positioned in the coupling slots. A unit restricting the stem motion relative to the rocker is installed between the stem lugs and rocker. EFFECT: reduced strain of the wire rod at turning of the rocker, enhanced reliability of operation of the control actuator. 2 dwg