(19)
(11) EP 2 503 102 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
09.08.2017 Bulletin 2017/32

(43) Date of publication A2:
26.09.2012 Bulletin 2012/39

(21) Application number: 12156804.2

(22) Date of filing: 24.02.2012
(51) International Patent Classification (IPC): 
F01D 11/00(2006.01)
(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: 25.03.2011 GB 201104994

(71) Applicant: Rolls-Royce plc
London SW1E 6AT (GB)

(72) Inventor:
  • Mason, Paul
    Derby, DE24 0YB (GB)

(74) Representative: Rolls-Royce plc 
Intellectual Property Dept SinA-48 PO Box 31
Derby DE24 8BJ
Derby DE24 8BJ (GB)

   


(54) A rotor having an annulus filler


(57) An annulus filler for installation between blades, such as fan blades, of the rotor of a gas turbine engine comprises a channel 13 which accommodates a post 6 defined between blade slots 4 of the disc 2. A chocking surface 24 of the annulus filler 12 contacts regions of a contact surface 26 of the post 6 to chock the head 10 of the post 6 within the channel 30. The annulus filler 12 is thus supported along the axial length of the post 6, enabling it to withstand circumferential forces generated on rotation of the disc 2.







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