(19)
(11) EP 1 818 511 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
05.12.2007 Bulletin 2007/49

(43) Date of publication A2:
15.08.2007 Bulletin 2007/33

(21) Application number: 07101951.7

(22) Date of filing: 08.02.2007
(51) International Patent Classification (IPC): 
F01D 25/30(2006.01)
 F04D 29/44(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK YU

(30) Priority: 09.02.2006 US 350537

(71) Applicant: Honeywell International Inc.
Morristown, NJ 07962 (US)

(72) Inventors:
  • Nolcheff, Nick A.
    Chandler, AZ 85249 (US)
  • Sloviaky, John A.
    Chandler, AZ 85226 (US)
  • Plummer, Michon N.
    Chandler, AZ 85224 (US)

(74) Representative: Haley, Stephen 
Gill Jennings & Every LLP Broadgate House 7 Eldon Street
London EC2M 7LH
London EC2M 7LH (GB)

   


(54) Leaned deswirl vanes behind a centrifugal compressor in a gas turbine engine


(57) A compressor (122) includes a deswirl assembly (206) to improve asrodyaamis coupling with the combustor (124). The assembly (206) includes an annular housing and a plurality of vanes (224). The annular housing includes an inner and an outer annular wall (220,222) disposed concentric to each other, and a flowpath (228) defined therebetween. The plurality of vanes (224) are disposed in the flowpath (228) in a substantially annular pattern. Each vane has a leading edge (302), a trailing edge (304), a convex surface (308), and concave surface (306), and each of the convex and concave surfaces (308,306) extends between the leading and trailing edges (302,304). Additionally, each vane (224) extends between and is angled relative to the inner and the outer annular walls (220,222) such that the concave surface (306) faces the outer annular wall (222) and the convex surface (308) faces the inner annular wall (220). The vanes (224) preferably have a uniform axial cross section for ease of manufacturing.







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