F - Mech Eng,Light,Heat,Weapons – 01 – D
Patent
F - Mech Eng,Light,Heat,Weapons
01
D
F01D 7/00 (2006.01)
Patent
CA 2520078
Control lever (40) for the angular setting of a stator blade, comprising a first end (48) intended to be fitted in a fixed manner on a blade pivot, a second end (42) comprising a cylindrical pin for fitting on a control ring, and a flat intermediate part (44) connecting the first and second ends (42, 48) having shapes and dimensions determined in order to increase the natural frequencies of the lever (40) in flexion and in torsion above the vibratory frequencies of the turboshaft engine upstream of the lever and in order to retain the stiffness of the lever.
Levier (40) de commande du calage angulaire d'une aube de stator, comprenant une première extrémité (48) destinée à être montée fixement sur un pivot d'aube, une deuxième extrémité (42) comportant un pion cylindrique (32) de montage sur un anneau de commande, et une partie intermédiaire (44) plate reliant les première et deuxième extrémités (42, 48) ayant des formes et dimensions déterminées pour augmenter les fréquences propres du levier (40) en flexion et en torsion au-dessus des fréquences vibratoires de la turbomachine en amont du levier et pour conserver la raideur du levier.
Bourgoin Sebastien
Follonier Christophe
Lejars Claude
Pontoizeau Bruce
Tourne Christophe
Goudreau Gage Dubuc
Snecma
LandOfFree
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