EP 2573327 A1 20130327 - Damping wire, corresponding rotor blade stage, steam turbine and producing method
Title (en)
Damping wire, corresponding rotor blade stage, steam turbine and producing method
Title (de)
Dämpfungsdraht, zugehörige Laufschaufelstufe, Dampfturbine und Herstellungsverfahren
Title (fr)
Fil amortisseur, étage rotorique aubagé, turbine à vapeur et procédé de manufacture associés
Publication
Application
Priority
EP 11182015 A 20110920
Abstract (en)
The invention relates to a damping wire 1 for vibration damping rotor blade stages 4 of turbo machines. The damping wire 1 is distinguished in that it is constructed as a coaxial wire having an inner wire 2 and at least one sleeve 3 at least partially surrounding the inner wire 2. The invention also relates to a rotor blade stage 4 having such a damping wire and to a method for producing such a rotor blade stage.
IPC 8 full level
F01D 5/24 (2006.01)
CPC (source: EP)
F01D 5/24 (2013.01)
Citation (search report)
- [X] CH 578679 A5 19760813 - BBC SULZER TURBOMASCHINEN
- [X] DE 966503 C 19570814 - SIEMENS AG
- [X] GB 898175 A 19620606 - PARSONS & MARINE ENG TURBINE
- [X] JP S5554607 A 19800422 - HITACHI LTD
- [X] DE 10219290 A1 20031106 - VATTENFALL EUROPE GENERATION [DE]
- [X] US 1856820 A 19320503 - ROBINSON ERNEST L
- [X] US 4268223 A 19810519 - ANNER EMIL, et al
- [X] JP S59108804 A 19840623 - TOSHIBA KK
- [X] JP S61291701 A 19861222 - TOSHIBA CORP
- [X] US 856630 A 19070611 - GREEN JONATHAN S [US]
- [X] US 4699569 A 19871013 - GLOOR KURT [CH]
- [X] DE 2606891 A1 19760923 - STAL LAVAL TURBIN AB
Citation (examination)
US 3881844 A 19750506 - HENNESSEY JOHN D, 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)
DOCDB simple family (application)
EP 11182015 A 20110920