System for controlling variable geometry equipment for a...

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

Patent

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Details

F01D 17/16 (2006.01) F01D 17/20 (2006.01) F02C 6/08 (2006.01) F02C 9/18 (2006.01) F02C 9/22 (2006.01)

Patent

CA 2738211

The invention relates to a system for controlling at least two sets of variable geometry equipment (10, 110) of a turbine engine. The turbine engine comprises at least one first body and a second body, the first set of equipment (10) being a stage of variable stator vanes of a compressor of the first body moving between a closed position during idling and an open position at high speed, and the second set of equipment (110) being at least one bleed valve of a compressor of the second body moving between an open position during idling and a closed position at high speed. The actuator drives the second set of equipment (110) by means of an actuating part (65) that is actuated over part of the course of the actuator and idle on an abutment (64) over the rest of the course, and by means of a sliding joining element (120) providing a backlash in the actuation of the second set of equipment.

Système de commande d'au moins deux équipements (10, 110) à géométrie variable d'une turbomachine, la turbomachine comportant au moins un premier corps et un deuxième corps, le premier équipement (10) étant un étage d'aubes de stator à angle de calage variable d'un compresseur du premier corps évoluant entre une position fermée au ralenti et une position ouverte à fort régime, le second équipement (110) étant au moins une vanne de décharge d'un compresseur du deuxième corps évoluant entre une position ouverte au ralenti et une position fermée à fort régime. L'actionneur entraîne le second équipement (110) par l'intermédiaire d'une pièce d'actionnement (65) qui est actionnée sur une partie de la course de l'actionneur et au repos sur une butée (64) sur le reste de la course, et par l'intermédiaire d'un organe de jonction coulissant (120) ménageant une course morte dans l'actionnement dudit second équipement.

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