Aerofoil containment structure

Details Aerofoil containment structure Aerofoil containment structure

2005-12-19

2009-10-20

Dinh, Tien (Department: 3644)

Aeronautics and astronautics

Aircraft power plants

C415S009000

Reexamination Certificate

active

07604199

ABSTRACT:
A stage of fan aerofoils (10) lies within a fan cowl (12). The fan duct (16) is defined in part by a hard casing (14) that in turn surrounds aerofoils (10). Hard casing (14) includes wedge members (26) that fill the annular gap between ring (14) and an outer ring (20). In the event of an aerofoil (10) breaking off, the hard ring (14) and wedges (26) absorb sufficient of the kinetic energy expended by the broken aerofoil (10), as to prevent it passing through outer ring (20) on to the fan cowl (12).

REFERENCES:
patent: 3602602 (1971-08-01), Motta
patent: 4534698 (1985-08-01), Tomich
patent: 5388959 (1995-02-01), Forrester et al.
patent: 6059523 (2000-05-01), Modafferi et al.
patent: 0 922 837 (2000-12-01), None
patent: 2 281 941 (1995-03-01), None

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