GUIDE VANE TURNING MECHANISM

摘要

FIELD: machine building. ^ SUBSTANCE: guide vane turning mechanism of axial turbine or compressor includes housing with case with turning vanes, which is installed into it. Levers connected in movable manner to the ring resting on the case are fixed on vane trunnions. Mechanisms comprising the shaft installed in the sleeve attached to the housing and levers on the shaft ends are located on both sides of the housing. Levers are hinged to the ring on one end of the shaft and to hydraulic actuator on the other end. On one of the hydraulic actuators there installed is spool valve through which oil is supplied from turbine or compressor control system to its pressure cavity connected by means of a pipe to pressure cavity of the second hydraulic actuator. ^ EFFECT: invention allows improving the reliability of guide vane turning mechanism. ^ 2 dwg