(19)
(11) EP 4 739 640 A2

(12)

(88) Date of publication A3:
16.10.2025

(43) Date of publication:
13.05.2026 Bulletin 2026/20

(21) Application number: 24875772.6

(22) Date of filing: 08.07.2024
(51) International Patent Classification (IPC): 
C04B 35/00(2006.01)
F01D 5/28(2006.01)
(52) Cooperative Patent Classification (CPC):
F01D 25/007; F05D 2240/35; F01D 5/005; F05D 2230/80; F05D 2230/72; F05D 2230/90; F05D 2230/31; F05D 2260/95; F01D 5/288
(86) International application number:
PCT/US2024/037033
(87) International publication number:
WO 2025/116982 (05.06.2025 Gazette 2025/23)
(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
GE KH MA MD TN

(30) Priority: 06.07.2023 US 202363525256 P

(71) Applicant: RTX Corporation
Farmington, CT 06032 (US)

(72) Inventors:
  • THAYER, Henry, H.
    Wethersfield, Connecticut 06109 (US)
  • ZALESKI, Elisa M.
    Vernon, Connecticut 06066 (US)
  • NEUSTADT, Nicole I.
    Manchester, Connecticut 06042 (US)

(74) Representative: Dehns 
10 Old Bailey
London EC4M 7NG
London EC4M 7NG (GB)

   


(54) TURBINE ENGINE CMAS IN SITU MITIGATION