EP 1724471 B1 20100728 - Control system for variable stator vane stages of a turbomachine
Title (en)
Control system for variable stator vane stages of a turbomachine
Title (de)
Kontrollsystem für verstellbaren Statorschaufelstufen einer Turbomaschine
Title (fr)
Système de commande d'étages d'aubes de stator à angle de calage variable de turbomachine
Publication
Application
Priority
FR 0504916 A 20050517
Abstract (en)
[origin: EP1724471A2] The system has an actuator (24) for turning a control ring (22) of one of variable-pitch stator stages via a control unit (26) that is pivotally mounted on a stator casing (12). A synchronization bar (30) transmits the turning movement of the ring to a control ring (22`) of the other stage via a follower unit (26). An additional crank (44) interposed between the follower unit and the follower ring has a differential guide unit. The unit (44) is pivotally mounted on the follower unit and connected to the casing by a wheel (46) sliding in a slot (48) secured to the casing.
IPC 8 full level
F01D 17/16 (2006.01); F04D 29/56 (2006.01)
CPC (source: EP US)
F01D 17/162 (2013.01 - EP US); F04D 29/563 (2013.01 - EP US); F05D 2260/56 (2013.01 - EP US); F05D 2260/76 (2013.01 - EP US); F05D 2270/58 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1724471 A2 20061122; EP 1724471 A3 20090121; EP 1724471 B1 20100728; CA 2547025 A1 20061117; CA 2547025 C 20121002; DE 602006015740 D1 20100909; FR 2885968 A1 20061124; FR 2885968 B1 20070810; JP 2006322456 A 20061130; JP 4653013 B2 20110316; RU 2006116818 A 20071127; RU 2396439 C2 20100810; US 2006260307 A1 20061123; US 7273346 B2 20070925
DOCDB simple family (application)
EP 06112920 A 20060421; CA 2547025 A 20060516; DE 602006015740 T 20060421; FR 0504916 A 20050517; JP 2006136073 A 20060516; RU 2006116818 A 20060516; US 38327706 A 20060515