EP 1612372 B1 20141008 - Turbine blade with a cut-back at the root of the blade
Title (en)
Turbine blade with a cut-back at the root of the blade
Title (de)
Turbinenschaufel mit einem Hinterschnitt am Schaufelfuss
Title (fr)
AUBE DE TURBINE AVEC UNE PARTIE DECOUPÉE AU PIED DE L'AUBE
Publication
Application
Priority
EP 04103117 A 20040701
Abstract (en)
[origin: EP1612372A1] A turbine blade (1) for a steam or gas turbine comprises a trailing edge (5) that is shaped having a cut-back (10) in one or both the end-regions near the blade tip (3) and blade platform (6). The end-region or end-regions with a cut-back (10) are twisted with respect to the mid-region (9) of the blade. The end-region (8b) near the blade platform (6) is additionally leaned in the direction perpendicular to the chord of the blade where the pressure side (32) is leaned toward the platform (6). In a turbine with blades according to this invention a reduced amount of secondary vortex flows develop.
IPC 8 full level
F01D 5/14 (2006.01)
CPC (source: EP)
F01D 5/141 (2013.01); F01D 5/143 (2013.01); F01D 5/145 (2013.01)
Designated contracting state (EPC)
DE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 04103117 A 20040701