COMPRESSOR GUIDE-VANE ASSEMBLY AND DEVICE TO CONTROL VANE IN THIS ASSEMBLY Russian patent published in 2007 - IPC F04D29/54 

FIELD: mechanical engineering; turbomachine compressors.

SUBSTANCE: invention relates to device to control vane with adjustable angle and to guide-vane assembly of turbomachine compressor. Proposed device has tie-rod 30, connectors 24 forming hinge between first end 32 of tie-rod and control ring and locks of second end 34 of tie-rod on vane trunnion 12 of vane to be controlled, and radial cavity 16 made in vane trunnion and designed to take in second end of tie-rod. Said cavity has at least one flat side wall 16 a tilted relative to longitudinal middle plane P of cavity and engaging with corresponding tilted side wall 34a of second end of tie-rod, and tightening cover 44 fitted on second end of tie-rod which is exposed to action of locks. Said tightening cover has inner surface 48a forming flat contact with outer surface 36 of second end of tie-rod to hold second end of tie-rod on vane trunnion without clearance owing to contact between said tilted side walls.

EFFECT: improved control of guide-vane assembly vane.

10 cl, 3 dwg