(19)
(11) EP 3 090 131 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:
27.01.2021 Bulletin 2021/04

(21) Application number: 14877250.2

(22) Date of filing: 10.12.2014
(51) International Patent Classification (IPC): 
F01D 5/20(2006.01)
(86) International application number:
PCT/US2014/069422
(87) International publication number:
WO 2015/102827 (09.07.2015 Gazette 2015/27)

(54)

AIRFOIL, CORRESPONDING GAS TURBINE ENGINE AND METHOD FOR REDUCING AIRFOIL TIP LEAKAGE LOSSES

SCHAUFEL, ZUGEHÖRIGES GASTURBINENTRIEBWERK UND VERFAHREN ZUR REDUZIERUNG VON LECKVERLUSTEN AN SCHAUFELSPITZEN

AUBE, MOTEUR À TURBINE À GAZ ET PROCÉDÉ DE RÉDUCTION DE PERTES DE FUITE EN BOUT D'AUBE ASSOCIÉS

(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: 30.12.2013 US 201314143115

(43) Date of publication of application:
09.11.2016 Bulletin 2016/45

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

(72) Inventors:
  • ZELESKY, Mark F.
    Bolton, Connecticut 06043 (US)
  • AGGARWALA, Andrew S.
    Vernon, Connecticut 06066 (US)

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


(56) References cited: : 
CN-B- 101 255 800
US-A- 6 027 306
US-A1- 2009 162 200
 US-A- 5 997 251
US-A1- 2008 019 839
US-A1- 2013 230 379
   
       
    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).