EP 1798375 B1 20110302 - Airfoil shape for variable stator vanes
Title (en)
Airfoil shape for variable stator vanes
Title (de)
Schaufelprofil für verstellbare Statorschaufeln
Title (fr)
Profil d'aube pour aubes statoriques variables
Publication
Application
Priority
DE 102005060699 A 20051219
Abstract (en)
[origin: EP1798375A2] For the purposes of blade profile definition, a profile skeleton line extends along the meridional flow line, and the stator is divided into three radial zones (Z0, Z1, Z2). These zones, from the radially inner- to the radially-outer edge, have a profile skeleton line constructed to satisfy a set of equations. These relate angles of inclination at the stator leading edge (alpha 1) and trailing edge (alpha 2), the dimensionless reference angle of overall curvature (alpha star), dimensionless running length (S) (reference) and angles (alpha P) between the tangent and meridional flow line at each point, and other variables.
IPC 8 full level
F01D 5/14 (2006.01); F01D 17/16 (2006.01); F04D 29/32 (2006.01); F04D 29/46 (2006.01); F04D 29/56 (2006.01)
CPC (source: EP US)
F01D 5/141 (2013.01 - EP US); F01D 17/165 (2013.01 - EP US); F04D 29/544 (2013.01 - EP US); F04D 29/563 (2013.01 - EP US); F05D 2240/301 (2013.01 - EP US); F05D 2250/00 (2013.01 - EP US); F05D 2250/14 (2013.01 - EP US); F05D 2250/74 (2013.01 - EP US); Y10S 416/02 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1798375 A2 20070620; EP 1798375 A3 20081029; EP 1798375 B1 20110302; DE 102005060699 A1 20070621; DE 502006008986 D1 20110414; US 2007140837 A1 20070621; US 7416382 B2 20080826
DOCDB simple family (application)
EP 06024318 A 20061123; DE 102005060699 A 20051219; DE 502006008986 T 20061123; US 64040406 A 20061218