GUIDE VANES OF AXIAL-FLOW COMPRESSOR Russian patent published in 2000 - IPC

FIELD: aircraft engine building, in particular, variable-setting guide vanes of turbine engine axial-flow compressor. SUBSTANCE: the variable guide vanes of the axial-flow compressor fixed in the outer casing by the upper trunnions, and in the inner shroud ring-by the lower trunnions through spherical and cylindrical bushings have split spherical and cylindrical bushings, and their surface conjugated layers are made of antifriction materials. The inner shroud ring may have a wavy shape, and the surface conjugated layers may be made of composite materials. EFFECT: enhanced stability of compressor operation at constant operating parameters due to reduced wear and friction coefficient of the inner bearing members of variable-setting vanes during engine operation. 2 cl, 4 dwg