EP 1748158 B1 20170301 - Bushing for pivoting the variable vanes of a turbomachine
Title (en)
Bushing for pivoting the variable vanes of a turbomachine
Title (de)
Buchse zum Drehen der verstellbaren Leitschaufeln einer Turbomaschine.
Title (fr)
Douille pour pivot d'aube à angle de calage variable pour turbomachine
Publication
Application
Priority
FR 0508000 A 20050727
Abstract (en)
[origin: EP1748158A1] The bushing (200) has a tubular body (202) having a longitudinal axis (Z-Z), and four branches (206) extending radially outwards with respect to the longitudinal axis of the body and axially over the full height of the body. The branches are distributed around the circumference of the tubular body in an equidistant manner, where each branch has a rectangular transversal section. Each branch has walls applied against the walls of a recess, where each wall has an indention turned toward the inside of one of the branches. Another bushing is interposed between a guide pivot and the bushing (200). Independent claims are also included for the following: (1) a turbomachine ring including a set of recesses each for receiving a guide pivot of a variable-pitch vane (2) a turbomachine compressor including a ring (3) a turbomachine including a ring.
IPC 8 full level
F04D 29/56 (2006.01); F01D 9/04 (2006.01); F01D 17/16 (2006.01); F02B 37/24 (2006.01)
CPC (source: EP US)
F01D 9/042 (2013.01 - EP US); F01D 17/162 (2013.01 - EP US); F04D 29/563 (2013.01 - EP US); F02B 37/24 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1748158 A1 20070131; EP 1748158 B1 20170301; FR 2889242 A1 20070202; FR 2889242 B1 20071102; RU 2006127188 A 20080210; RU 2405941 C2 20101210; US 2007025842 A1 20070201; US 7670106 B2 20100302
DOCDB simple family (application)
EP 06117010 A 20060712; FR 0508000 A 20050727; RU 2006127188 A 20060726; US 49278106 A 20060726