EP 2870367 A1 20150513 - TURBOMACHINE GUIDE VANES WITH IMPROVED VANE PROFILE
Title (en)
TURBOMACHINE GUIDE VANES WITH IMPROVED VANE PROFILE
Title (de)
TURBOMASCHINENLEITSCHAUFELN MIT VERBESSERTEM SCHAUFELPROFIL
Title (fr)
REDRESSEUR DE TURBOMACHINE AVEC AUBES À PROFIL AMELIORE
Publication
Application
Priority
- FR 1256532 A 20120706
- FR 2013051531 W 20130628
Abstract (en)
[origin: WO2014006310A1] The invention relates to a set of turbomachine guide vanes comprising a plurality of vanes arranged around an annulus, each vane having a leading edge and extending between a root end and a tip end, the leading edge at the root end of each vane being positioned upstream of the leading edge at the tip end of the vane with respect to the direction in which the air flows, the leading edge offset between these two ends being greater than 10% of the height of the blade. This main feature is also combined with a tangential stacking of the set of guide vanes towards the suction face side, the set of guide vanes being characterized in that the curve of tangential stacking, which consists of the position, in the direction tangential to the annulus, of the centres of gravity of successive vane cross sections along the height of the vane, is a curve that increases constantly towards the suction face side of the vane, and in that said curve, near the tip end of a vane, has an accentuated gradient towards the suction face side in comparison with the rest of said curve, and in that said curve has a mean gradient near the tip end of the vane that is greater than at least 1.2 times the mean gradient of the curve over the portion comprised between 30% and 90% of the height of the vane.
IPC 8 full level
F04D 29/54 (2006.01); F01D 5/14 (2006.01); F01D 9/04 (2006.01)
CPC (source: CN EP RU US)
F01D 1/04 (2013.01 - US); F01D 5/141 (2013.01 - CN EP US); F01D 9/04 (2013.01 - US); F01D 9/041 (2013.01 - CN EP US); F04D 29/544 (2013.01 - CN EP US); F01D 5/141 (2013.01 - RU); F01D 9/041 (2013.01 - RU); F04D 29/544 (2013.01 - RU); F05B 2250/71 (2013.01 - CN EP US); F05D 2220/36 (2013.01 - CN EP US); F05D 2240/121 (2013.01 - CN EP US); Y02T 50/60 (2013.01 - EP US)
Citation (search report)
See references of WO 2014006310A1
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)
WO 2014006310 A1 20140109; BR 112015000075 A2 20170627; CA 2878149 A1 20140109; CA 2878149 C 20201027; CN 104411982 A 20150311; EP 2870367 A1 20150513; FR 2993020 A1 20140110; FR 2993020 B1 20160318; RU 2015103931 A 20160827; RU 2632350 C2 20171004; US 10844735 B2 20201124; US 2015226074 A1 20150813; US 2017276004 A1 20170928
DOCDB simple family (application)
FR 2013051531 W 20130628; BR 112015000075 A 20130628; CA 2878149 A 20130628; CN 201380036009 A 20130628; EP 13744667 A 20130628; FR 1256532 A 20120706; RU 2015103931 A 20130628; US 201314413042 A 20130628; US 201715618904 A 20170609