(19)
(11) EP 2 372 109 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
18.06.2014 Bulletin 2014/25

(43) Date of publication A2:
05.10.2011 Bulletin 2011/40

(21) Application number: 11152869.1

(22) Date of filing: 01.02.2011
(51) International Patent Classification (IPC): 
F01D 25/24(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: 09.02.2010 GB 201002059
11.02.2010 GB 201002307

(71) Applicants:
  • Rolls-Royce plc
    London SW1E 6AT (GB)
  • Rolls-Royce Deutschland & Co. KG
    158257 Blankenfelde-Mahlow (DE)

(72) Inventors:
  • Zanenga, Erminio
    26010 Fiesco (CR) (IT)
  • Schweikhard, Roland
    12277 Berlin (DE)

(74) Representative: Yeomans, Victoria Jane Anora et al
Rolls-Royce plc Intellectual Property SinB-38, PO Box 31
Derby, Derbyshire DE24 8BJ
Derby, Derbyshire DE24 8BJ (GB)

   


(54) Diffusive nacelle


(57) A nacelle for a propeller gas turbine engine, the nacelle comprising a forebody upstream of the propellers and an afterbody downstream of the forebody. The forebody comprises a first, upstream region and a second, downstream region. The first region has a convex profile and the second region has a concave profile to cause diffusion of the airflow into the propellers.







Search report









Search report