EP 2423438 A2 20120229 - Shrouded turbine blade with contoured platform and axial dovetail
Title (en)
Shrouded turbine blade with contoured platform and axial dovetail
Title (de)
Turbinenlaufschaufel mit Deckband, profilierter Plattform und Axialschwalbenschwanz
Title (fr)
Aube de turbine carénée avec plateforme profilée et segment axial en queue d'aronde
Publication
Application
Priority
US 87282710 A 20100831
Abstract (en)
A turbine blade includes an airfoil having a root, a tip, a concave pressure side, and a laterally opposite convex suction side, the pressure and suction sides extending in chord between opposite leading and trailing edges; an outer platform disposed at the tip of the airfoil, the outer platform having spaced-apart lateral edges which each defme an interlocking element; an inner platform with two spaced-apart curved lateral edges disposed at the root of the airfoil, the inner platform having a hot side facing the airfoil which is contoured in a non-axisymmetric shape; and a dovetail extending radially inward from the opposite side of the inner platform, wherein the dovetail is axially straight.
IPC 8 full level
F01D 5/22 (2006.01)
CPC (source: EP US)
F01D 5/143 (2013.01 - EP US); F01D 5/145 (2013.01 - EP US); F01D 5/3007 (2013.01 - EP US); F05D 2240/80 (2013.01 - EP 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)
EP 2423438 A2 20120229; CA 2744219 A1 20120229; JP 2012052526 A 20120315; US 2012051930 A1 20120301
DOCDB simple family (application)
EP 11171293 A 20110624; CA 2744219 A 20110623; JP 2011143795 A 20110629; US 87282710 A 20100831