EP 3362648 A1 20180822 - METHOD FOR PRODUCING A BASE PART OF A TURBINE BLADE
Title (en)
METHOD FOR PRODUCING A BASE PART OF A TURBINE BLADE
Title (de)
VERFAHREN ZUM HERSTELLEN EINES GRUNDKÖRPERS EINER TURBINENSCHAUFEL
Title (fr)
PROCEDE DE FABRICATION D'UN CORPS DE BASE D'UN AUBE DE TURBINE
Publication
Application
Priority
- EP 15202827 A 20151228
- EP 2016080179 W 20161208
Abstract (en)
[origin: WO2017114644A1] The invention relates to a method for producing turbine rotor blades or the base bodies (30) thereof, the frequency property of which can be adapted particularly easily to the required boundary conditions. To this end, recesses (50) are introduced into the blade root (32) and/or by reducing a dimension below the corresponding target value if the base body has (30) insufficient vibrational properties. In this way, a method is disclosed in which the vibrational property of the turbine rotor blades can be set in a particularly easy and variable manner. As a result, the reject rate in the production of turbine rotor blades can be reduced.
IPC 8 full level
F01D 5/26 (2006.01); F01D 5/02 (2006.01); F01D 5/30 (2006.01)
CPC (source: EP US)
F01D 5/027 (2013.01 - EP); F01D 5/16 (2013.01 - US); F01D 5/26 (2013.01 - EP); F01D 5/288 (2013.01 - US); F01D 5/3007 (2013.01 - EP US); F05D 2230/10 (2013.01 - US); F05D 2230/61 (2013.01 - EP); F05D 2230/90 (2013.01 - US); F05D 2260/96 (2013.01 - US)
Citation (search report)
See references of WO 2017114644A1
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 3187685 A1 20170705; CN 108474254 A 20180831; CN 108474254 B 20200424; EP 3362648 A1 20180822; EP 3362648 B1 20191023; JP 2019500545 A 20190110; JP 6586242 B2 20191002; US 10669857 B2 20200602; US 2019338645 A1 20191107; WO 2017114644 A1 20170706
DOCDB simple family (application)
EP 15202827 A 20151228; CN 201680077021 A 20161208; EP 16812708 A 20161208; EP 2016080179 W 20161208; JP 2018538742 A 20161208; US 201616063752 A 20161208