DEVICE TO CONTROL PIN OF VANE WITH VARIABLE PITCH ANGLE, STATOR INCORPORATING SUCH CONTROL DEVICE, COMPRESSOR INCORPORATING SUCH STATOR, AND GAS TURBINE ENGINE COMPRISING SUCH COMPRESSOR

摘要

FIELD: machine building.SUBSTANCE: proposed device comprises control lever, pin and two free spherical plain bearings. Upper end of said pin is engaged with control lever while lower end is connected with vane. First free spherical plain bearing is fitted on pin lower end while second one is arranged on pin upper end. Free spherical plain bearing comprises inner and outer racers to make one ball joint. Inner racer and pin interlocked. Another invention of this set covers stator comprising case, aforesaid control devices and vanes arranged in said case. Every vane is rigidly secured to pin while aforesaid bearings are fitted in case bore. Other inventions of the set relate to compressor with said stator and gas turbine engine with said compressor.EFFECT: longer life.10 cl, 5 dwg