EP 2436883 A1 20120404 - Blade root, particularly of a turbine blade, a blade, and a turbomachine assembly
Title (en)
Blade root, particularly of a turbine blade, a blade, and a turbomachine assembly
Title (de)
Schaufelfuss, insbesondere einer Turbinenschaufel, Schaufel und Turbomaschinenanordnung
Title (fr)
Pied d'aube, en particulier pour aube de turbine, aube et ensemble pour turbomachine
Publication
Application
Priority
EP 10182370 A 20100929
Abstract (en)
A blade root (1) comprises a bottom (10) of the blade root (1), a plurality of opposite pairs of lobes (11,11',12,12',13,13'), and a plurality of opposite pairs of fillets (21,21',22,22',23,23'). The root comprises a plurality of substantially planar flanks (31,31',32,32',33,33'), the lobes and fillets arranged in an alternating order and each of the flanks arranged between one of the lobes and one of the fillets, wherein a first flank (31) of the plurality of flanks is arranged at a distant first position in regards to the bottom (10) of the blade root and having a first planar expansion (A10), and a second flank (32) of the plurality of flanks is arranged at a closer second position in regards to the bottom (10) of the blade root compared to the first position of the first flank (31) and having a second planar expansion (A11), the second planar expansion (A11) being greater than the first planar expansion (A10).
IPC 8 full level
F01D 5/30 (2006.01)
CPC (source: EP)
F01D 5/3007 (2013.01)
Citation (applicant)
- US 3079681 A 19630305 - FENTIMAN ARTHUR E
- US 5147180 A 19920915 - JOHNSON MIKE C [US]
- US 5176500 A 19930105 - HEINIG ROGER W [US]
- EP 0291725 B1 19920701
- DE 3236021 A1 19830519 - BBC BROWN BOVERI & CIE [CH]
Citation (search report)
- [XI] US 2007237644 A1 20071011 - SUZUKI FUMIYUKI [JP], et al
- [XI] DE 889159 C 19530907 - SVENSKA ROTOR MASKINER AB
- [XI] US 2009116964 A1 20090507 - BROCK HANS-EGON [DE]
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 SE SI SK SM TR
Designated extension state (EPC)
BA ME RS
DOCDB simple family (publication)
DOCDB simple family (application)
EP 10182370 A 20100929