EP 3502482 B1 20200826 - COMPRESSOR BLADE WITH MODIFIED STAGGER ANGLE SPANWISE DISTRIBUTION
Title (en)
COMPRESSOR BLADE WITH MODIFIED STAGGER ANGLE SPANWISE DISTRIBUTION
Title (de)
VERDICHTERSCHAUFEL MIT SPANNWEITER VERTEILUNG EINES MODIFIZIERTEN TAUMELWINKELS
Title (fr)
AUBE DE COMPRESSEUR AVEC DISTRIBUTION DANS LE SENS DE L'ENVERGURE DE L'ANGLE DE DÉCALAGE MODIFIÉ
Publication
Application
Priority
EP 17209156 A 20171220
Abstract (en)
[origin: EP3502482A1] A compressor blade (5) extending spanwise from a hub section (6) to a tip section (7) and having intermediate airfoil cross sections (S), said cross sections having a stagger angle () comprised between a chord () and a meridional axis (m), characterized in that the blade (5) has a spanwise stagger angle distribution γ(s) defined as a function of the relative span (s) of the blade by the equation:where WSA(s) is a weighted stagger angle defined, as a function of the relative span, by a curve comprised between the following equations:and
IPC 8 full level
F04D 29/32 (2006.01); F01D 5/14 (2006.01); F04D 29/66 (2006.01); F04D 29/68 (2006.01)
CPC (source: EP)
F01D 5/141 (2013.01); F04D 29/324 (2013.01); F04D 29/667 (2013.01); F04D 29/681 (2013.01); F05D 2240/301 (2013.01); F05D 2250/70 (2013.01)
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
DOCDB simple family (publication)
EP 3502482 A1 20190626; EP 3502482 B1 20200826; CN 109944830 A 20190628; CN 109944830 B 20211214
DOCDB simple family (application)
EP 17209156 A 20171220; CN 201811562785 A 20181220