EP 0204615 B1 19890315 - MANUFACTURING PROCESS FOR A TURBINE STATOR BLADE AND ITS PIVOT
Title (en)
MANUFACTURING PROCESS FOR A TURBINE STATOR BLADE AND ITS PIVOT
Publication
Application
Priority
FR 8508015 A 19850529
Abstract (en)
[origin: US4706354A] A method of manufacturing a variable incidence stator blade assembly comprising forming a blade with a root which forms an extension of the aerodynamic profile of the blade, forming a bush with a recess accommodating the root by ultrasonic, electro-chemical or electro-erosion machining and assembling the blade and bush in a turbo-machine outer casing and in an inner ring of channel section. A variable incidence stator blade assembled in a compressor of a gas turbine is also described, the blade assembly being as manufactured by the method. The channel section inner ring carried an abradable layer which co-operates to form a seal with annular lips carried by the compressor rotor drum.
IPC 1-7
IPC 8 full level
F01D 17/16 (2006.01)
CPC (source: EP US)
F01D 17/162 (2013.01 - EP US); Y10S 29/026 (2013.01 - EP US); Y10T 29/49323 (2015.01 - EP US); Y10T 29/49826 (2015.01 - EP US); Y10T 29/49861 (2015.01 - EP US); Y10T 29/49945 (2015.01 - EP US)
Designated contracting state (EPC)
BE DE FR GB
DOCDB simple family (publication)
EP 0204615 A1 19861210; EP 0204615 B1 19890315; DE 3662422 D1 19890420; FR 2582720 A1 19861205; FR 2582720 B1 19890602; US 4706354 A 19871117
DOCDB simple family (application)
EP 86401125 A 19860528; DE 3662422 T 19860528; FR 8508015 A 19850529; US 86804086 A 19860529