CONTROL VALVE

摘要

A control valve for a rotary type hydraulic servo-actuating mechanism comprising a hollow casing having therewithin a valve portion and a manifold portion, pressurized oil feeding and discharging ports communicated with the valve portion, a spindle slidably and rotatably mounted in the hollow casing, and a pair of oil paths axially formed in the spindle and communicated with long grooves open to the valve portion in the hollow casing. The valve is further provided with means to feed back thereto the motion derived from the servo-actuating mechanism.