EP 2666971 A1 20131127 - Turbomachine having clearance control capability
Title (en)
Turbomachine having clearance control capability
Title (de)
Strömungsmaschine mit Abstandssteuerungsfähigkeit
Title (fr)
Turbomachine dotée d'une capacité de commande de jeu
Publication
Application
Priority
US 201213477839 A 20120522
Abstract (en)
A turbomachine 10 having clearance control capability is provided and includes a turbine stage 20 including a blade 21 configured to rotate around a centerline 22, a movable portion 43 of a casing 40 circumferentially surrounding the turbine stage 20 and a rotatable cam 60 operably coupled to the movable portion and thereby configured to control an axial position of the movable portion. A radially outermost tip of the blade 21 and an interior surface of the movable portion 43 are sloped with respect to the centerline such 22 that the controlled axial position of the movable portion 43 is determinative of a clearance between the blade 21 and the movable portion 43.
IPC 8 full level
F01D 11/22 (2006.01)
CPC (source: EP US)
F01D 11/22 (2013.01 - EP US); F05D 2230/644 (2013.01 - EP US)
Citation (search report)
- [X] US 2002071763 A1 20020613 - BRANDL HERBERT [DE], et al
- [X] GB 2042646 A 19800924 - ROLLS ROYCE
- [X] DE 1178253 B 19640917 - MASCHF AUGSBURG NUERNBERG AG
- [X] EP 1243756 A1 20020925 - SIEMENS AG [DE]
- [X] DE 10108559 A1 20020905 - ALSTOM SWITZERLAND LTD [CH]
- [XP] EP 2487333 A2 20120815 - SIEMENS AG [DE]
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 2666971 A1 20131127; CN 103422904 A 20131204; JP 2013241932 A 20131205; RU 2013123018 A 20141127; US 2013315716 A1 20131128
DOCDB simple family (application)
EP 13167700 A 20130514; CN 201310191626 A 20130522; JP 2013105701 A 20130520; RU 2013123018 A 20130521; US 201213477839 A 20120522