Fan or compressor blisk

Details Fan or compressor blisk Fan or compressor blisk

2005-02-24

2008-11-04

Edgar, Richard (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Rotor having flow confining or deflecting web, shroud or...

Axially extending shroud ring or casing

C416S234000, C416S24400R

Reexamination Certificate

active

07445433

ABSTRACT:
A fan or compressor blisk for a gas turbine engine, lift fan or the like, comprises a disc having a radially outer rim, and a plurality of aerofoil blades circumferentially spaced around and extending radially outwards from the rim. The rim has a radially inward facing surface on its underside on at least one side of the disc, the radially inward facing surface having at least one indentation for reducing the cross-sectional area of the rim, in the circumferential direction of the disc, in the region of the indentation.

REFERENCES:
patent: 4312625 (1982-01-01), Pinaire
patent: 5292385 (1994-03-01), Kington
patent: 6511294 (2003-01-01), Mielke et al.
patent: 6524070 (2003-02-01), Carter
patent: 1 087 100 (2001-03-01), None
patent: 1 188 900 (2002-03-01), None

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