EP 2392780 A2 20111207 - Seal and airfoil tip clearance control
Title (en)
Seal and airfoil tip clearance control
Title (de)
Dichtungseinrichtung und Regelung des Schaufelspitzenspiels
Title (fr)
Dispositif d'étanchéité et réglage du jeu des extrémités d'aubes
Publication
Application
Priority
US 79105610 A 20100601
Abstract (en)
A turbine section includes a housing (31) and a blade outer air seal (42) to be mounted on the housing. A flex beam (34) mounts the blade outer air seal (42) onto the housing (31), with the flex beam (34) being supported on the housing (31), but free to move relative to the housing (31). A pressure air chamber (30) is formed on an opposed side of the flex beam (34) from the blade outer air seal (42). A source of pressurized air is delivered into the chamber (30) to cause the flex beam (34) to move the blade outer air seal (42) toward and away from a central axis of the housing (31).
IPC 8 full level
F01D 11/22 (2006.01)
CPC (source: EP US)
F01D 11/22 (2013.01 - EP US); F05D 2260/406 (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 2392780 A2 20111207; EP 2392780 A3 20141105; US 2011293407 A1 20111201
DOCDB simple family (application)
EP 11168277 A 20110531; US 79105610 A 20100601