EP 1640562 A1 20060329 - Frequency tuning method of a turbine blade and turbine blade
Title (en)
Frequency tuning method of a turbine blade and turbine blade
Title (de)
Verfahren zur Frequenzverstimmung einer Turbinenschaufel sowie Turbinenschaufel
Title (fr)
Procédé de syntonisation de fréquence d'une aube de turbine et aube de turbine
Publication
Application
Priority
EP 04022725 A 20040923
Abstract (en)
The frequency detuning process is for a blade unit (9) made of a basic material, and consisting of a blade (15) with a leading edge (12), trailing edge (13), tip (14) and foot (16). A recess (17) is made in the region of the tip. A component (18) made of a material different from that of the basic material, is fitted in this recess.
IPC 8 full level
F01D 5/16 (2006.01)
CPC (source: EP)
F01D 5/16 (2013.01); F04D 29/324 (2013.01); F04D 29/668 (2013.01); F05C 2201/90 (2013.01); F05D 2230/23 (2013.01); F05D 2300/133 (2013.01); F05D 2300/501 (2013.01)
Citation (search report)
- [XY] US 4178667 A 19791218 - STEVENS ELOY C [US], et al
- [X] US 3796513 A 19740312 - JONAS O
- [X] US 4118147 A 19781003 - ELLIS DELMAR H
- [X] GB 2142387 A 19850116 - ROLLS ROYCE
- [X] EP 0924380 A2 19990623 - GEN ELECTRIC [US]
- [Y] GB 1479855 A 19770713 - STATNI VYZKUMNY USTAV MATERIAL
- [A] FR 1024218 A 19530330 - RATEAU SOC
- [A] EP 0852164 A1 19980708 - TOSHIBA KK [JP], et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
DOCDB simple family (application)
EP 04022725 A 20040923