(19)
(11) EP 2 986 822 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
07.04.2021 Bulletin 2021/14

(45) Mention of the grant of the patent:
13.01.2021 Bulletin 2021/02

(21) Application number: 14808183.9

(22) Date of filing: 09.04.2014
(51) International Patent Classification (IPC): 
F01D 5/30(2006.01)
F01D 5/16(2006.01)
 F01D 5/10(2006.01)
F01D 5/34(2006.01)
(86) International application number:
PCT/US2014/033407
(87) International publication number:
WO 2014/197119 (11.12.2014 Gazette 2014/50)

(54)

ROTORS WITH ELASTIC MODULUS MISTUNED AIRFOILS

ROTOREN MIT SCHAUFELN MIT DEJUSTIERTEM ELASTIZITÄTSMODUL

ROTORS À AUBES DÉSACCORDÉES PAR MODIFICATION DU MODULE DE YOUNG

(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

(30) Priority: 16.04.2013 US 201361812392 P

(43) Date of publication of application:
24.02.2016 Bulletin 2016/08

(73) Proprietor: Raytheon Technologies Corporation
Farmington, CT 06032 (US)

(72) Inventors:
  • GRELOTTI, Robert A.
    Colchester, Connecticut 06415 (US)
  • MORRIS, Robert J.
    Portland, Connecticut 06480 (US)

(74) Representative: Dehns 
St. Bride's House 10 Salisbury Square
London EC4Y 8JD
London EC4Y 8JD (GB)


(56) References cited: : 
EP-A1- 2 161 410
GB-A- 2 490 127
US-A1- 2009 104 030
US-A1- 2010 124 502
US-B2- 7 824 158
 EP-A2- 1 752 610
US-A- 5 474 421
US-A1- 2009 104 030
US-A1- 2012 237 355
US-B2- 8 382 436
   
       
    Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).