Retention of centring keys of the rings under the variable...

F - Mech Eng,Light,Heat,Weapons – 01 – D

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F01D 9/02 (2006.01) F01D 11/00 (2006.01)

Patent

CA 2518355

La présente invention porte sur un moteur à turbine à gaz comprenant au moins un étage de compresseur avec un anneau interne (15, 15', 115, 115') sous aubes (11) de stator à calage variable comportant des clavettes axiales (16, 16') de centrage dudit anneau interne par rapport auxdites aubes de stator d'une part, et au moins un support d'organe d'étanchéité monté sur l'anneau interne d'autre part. Il est caractérisé par le fait que les dites clavettes (16, 16') comportent une gorge transversale (16B, 16'B) coopérant avec une nervure radiale (53, 53', 153, 153') ménagée transversalement à l'axe du moteur sur la périphérie du support (50, 50', 150, 150') d'organe d'étanchéité (51, 151).

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