EP 2918784 A1 20150916 - Blade foot for a turbine blade
Title (en)
Blade foot for a turbine blade
Title (de)
Schaufelfuß für eine Turbinenschaufel
Title (fr)
Pied d'aube pour une aube de turbine
Publication
Application
Priority
EP 14159497 A 20140313
Abstract (en)
[origin: WO2015135787A1] The invention relates to a turbine blade (1) with a blade (2), a blade root (3), and a cover plate (14) between the blade root (3) and the blade (2). The cover plate (14) has a parallelogram (42) with a front surface (40) and a rear surface (41) and a first bearing surface (43) and a second bearing surface (44). The blade (2) has a profiled design and a leading edge (45) and a trailing edge (46), said leading edge (45) pointing towards the front surface (40) and said trailing edge (46) pointing towards the rear surface (41). The front surface (40) has a curvature (20) in at least some sections in order to prevent a plastic deformation during operation.
Abstract (de)
Die Erfindung betrifft eine Turbinenschaufel (1) mit einem rhomboedrisch ausgeführten Schaufelfuß (3), wobei an den Ecken (16, 23, 24) des Rhomboeders eine Krümmung (20) angeordnet ist, die derart ausgeführt ist, dass im Betrieb eine plastische Verformung vermieden wird und nur eine elastische Verformung stattfindet.
IPC 8 full level
F01D 5/30 (2006.01); F04D 29/32 (2006.01)
CPC (source: EP KR RU US)
F01D 5/3038 (2013.01 - EP KR RU US); F04D 29/322 (2013.01 - EP KR US); F05D 2230/50 (2013.01 - US); F05D 2230/642 (2013.01 - EP KR US); F05D 2240/80 (2013.01 - EP KR US)
Citation (search report)
- [X] DE 19705323 A1 19980827 - SIEMENS AG [DE]
- [X] GB 2156908 A 19851016 - ROLLS ROYCE
- [X] FR 1192696 A 19591028 - OERLIKON MASCHF
- [X] EP 0081436 A1 19830615 - SNECMA [FR]
- [X] DE 718014 C 19420228 - AEG
- [X] EP 2322761 A2 20110518 - GEN ELECTRIC [US]
- [X] DE 102011054880 A1 20120503 - GEN ELECTRIC [US]
- [X] GB 2416568 A 20060201 - ROLLS ROYCE PLC [GB]
- [X] WO 2005010323 A1 20050203 - ALSTOM TECHNOLOGY LTD [CH], et al
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 2918784 A1 20150916; CN 106103903 A 20161109; CN 106103903 B 20171114; EP 3087252 A1 20161102; JP 2017517666 A 20170629; JP 6424233 B2 20181114; KR 101839261 B1 20180315; KR 20160130494 A 20161111; RU 2016139990 A 20180413; RU 2656176 C2 20180531; US 2017016336 A1 20170119; WO 2015135787 A1 20150917
DOCDB simple family (application)
EP 14159497 A 20140313; CN 201580013833 A 20150303; EP 15707925 A 20150303; EP 2015054339 W 20150303; JP 2016557026 A 20150303; KR 20167028047 A 20150303; RU 2016139990 A 20150303; US 201515123770 A 20150303