EP 2639410 A2 20130918 - In-situ gas turbine rotor blade and casing clearance control
Title (en)
In-situ gas turbine rotor blade and casing clearance control
Title (de)
In-situ Spielsteuerung zwischen Gasturbinenlaufschaufel und Gehäuse
Title (fr)
Contrôle in-situ du jeu entre aubes de rotor et carter
Publication
Application
Priority
US 201213417345 A 20120312
Abstract (en)
A method and system for protecting the rotor blade tips of rotary machines, particularly the compressors (30) of gas turbine engines, comprising a rotor assembly having a plurality of circumferentially spaced-apart rotor blades (50), with each blade extending radially outwardly from an inner wheel disk (54); a stator assembly comprising one or more rows of spaced-apart vanes (52) extending between adjacent rows of the rotor blades (50); a casing extending circumferentially around the rotor and stator assemblies; and an abradable ceramic coating applied to selected areas of the interior cylindrical surface of the rotor casing (36) to thereby provide a minimum clearance between the casing and rotor blades during start up and to thereafter ensure an effective compressor seal for compressed gas flow.
IPC 8 full level
F01D 11/12 (2006.01)
CPC (source: EP US)
F01D 11/122 (2013.01 - EP US); F05B 2280/10306 (2013.01 - EP US); F05D 2300/125 (2013.01 - EP US); F05D 2300/135 (2013.01 - EP US); F05D 2300/2112 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2639410 A2 20130918; CN 103307010 A 20130918; JP 2013189977 A 20130926; RU 2013110458 A 20140920; US 2013236302 A1 20130912
DOCDB simple family (application)
EP 13158077 A 20130307; CN 201310077671 A 20130312; JP 2013044910 A 20130307; RU 2013110458 A 20130311; US 201213417345 A 20120312