(19)
(11) EP 2 893 143 A2

(12)

(88) Date of publication A3:
28.08.2014

(43) Date of publication:
15.07.2015 Bulletin 2015/29

(21) Application number: 13852794.0

(22) Date of filing: 20.08.2013
(51) International Patent Classification (IPC): 
F01D 5/14(2006.01)
F02C 7/20(2006.01)
(86) International application number:
PCT/US2013/055726
(87) International publication number:
WO 2014/074199 (15.05.2014 Gazette 2014/20)
(84) Designated Contracting States:
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 States:
BA ME

(30) Priority: 05.09.2012 US 201213603634

(71) Applicants:
  • UNITED TECHNOLOGIES CORPORATION
    Hartford, CT 06101 (US)
  • MTU Aero Engines GmbH
    80995 München (DE)

(72) Inventors:
  • JUREK, Renee J.
    Colchester, Connecticut 06415 (US)
  • PRAISNER, Thomas J.
    Colchester, Connecticut 06415 (US)
  • HOEGER, Martin
    85435 Erding (DE)

(74) Representative: Leckey, David Herbert 
Dehns St Bride's House 10 Salisbury Square
London EC4Y 8JD
London EC4Y 8JD (GB)

   


(54) ROOT BOW GEOMETRY FOR AIRFOIL SHAPED VANE