(19)
(11) EP 0 922 837 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
06.12.2000 Bulletin 2000/49

(43) Date of publication A2:
16.06.1999 Bulletin 1999/24

(21) Application number: 98309221.4

(22) Date of filing: 11.11.1998
(51) International Patent Classification (IPC)7: F01D 21/04, F01D 25/24
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 11.11.1997 US 967519

(71) Applicant: UNITED TECHNOLOGIES CORPORATION
Hartford, CT 06101 (US)

(72) Inventor:
  • Van Duyn, Keven G.
    Bloomfield, CT 06002 (US)

(74) Representative: Leckey, David Herbert 
Frank B. Dehn & Co., European Patent Attorneys, 179 Queen Victoria Street
London EC4V 4EL
London EC4V 4EL (GB)

   


(54) Fan Case Liner


(57) A fan containment case assembly (30) of a gas turbine engine (10) includes a hardened fan case liner (42) disposed therein. In the event of a fan blade loss condition, the hardened fan case liner allows for circumferential movement of the fan blade tips (38) around the fan case (48). Thus, the liner reduces the destructive cutting away of the fan case, minimizing damage to the fan case and decreasing torque loading of the fan case from rotor deflections. The liner is preferably formed from overlapping shingles 52.






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