EP 3575556 A1 20191204 - TURBINE BLADE ASSEMBLY AND METHOD FOR MANUFACTURING SUCH BLADES
Title (en)
TURBINE BLADE ASSEMBLY AND METHOD FOR MANUFACTURING SUCH BLADES
Title (de)
TURBINENSCHAUFELANORDNUNG UND VERFAHREN ZUM HERSTELLEN SOLCHER ANORDNUNG
Title (fr)
ENSEMBLE PALE DE TURBINE ET PROCÉDÉ DE PRODUCTION D'UNE TELLE PALE
Publication
Application
Priority
EP 18175544 A 20180601
Abstract (en)
A turbine blade assembly (200) for turbo-machines including a blade body (202) including a free end (204) and a joint end (206), the blade body (202) comprising an airfoil section along at least one side of the blade body extending from the joint end to the free end. Further, the turbine blade assembly includes a blade platform at the joint end (206) of the blade body, suitable to abut a disc of a turbo-machine; and a blade root (220) that extends from the blade platform towards the disc (216), the blade root (220) comprising a plurality of lugs (222a-222d) and a plurality of fillets (224a-224c). The turbine blade assembly characterised in that the blade root (220) comprise a stress reducing structure (210a, 210b) including at least one slot (230, 235) having one of a continuous and discon-tinuous profile capable of countering stress at the plurality of fillets (224a-224c).
IPC 8 full level
F01D 5/30 (2006.01)
CPC (source: EP)
F01D 5/3007 (2013.01); F05D 2260/941 (2013.01)
Citation (applicant)
"Turbine blade fir-tree root design optimization using intelligent CAD and finite element analysis", COMPUTERS & STRUCTURES, 2002, pages 1853 - 1867
Citation (search report)
- [XY] US 2016201484 A1 20160714 - ENGEL TODD Z [US], et al
- [XY] US 3713752 A 19730130 - KURTI A
- [XY] WO 9101433 A1 19910207 - ALLIED SIGNAL INC [US]
- [XY] US 5314307 A 19940524 - FARMER JAMES L [US]
- [XY] US 2005175462 A1 20050811 - LAGRANGE BENJAMIN A [US], et al
- [Y] EP 3130422 A1 20170215 - HONEYWELL INT INC [US]
- [Y] US 2006099078 A1 20060511 - RICE DEREK A [US], et al
- [A] EP 1433959 A1 20040630 - GEN ELECTRIC [US]
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 18175544 A 20180601