Fan duct blade containment assembly

Details Fan duct blade containment assembly Fan duct blade containment assembly

2006-06-05

2008-11-04

Nguyen, Ninh H (Department: 3745)

Rotary kinetic fluid motors or pumps

Including destructible, fusible, or deformable non-reusable...

C415S200000, C415S220000

Reexamination Certificate

active

07445421

ABSTRACT:
The fan cowl (12) of a ducted fan gas turbine engine (10) has a downstream portion including an inner casing (30) that surrounds a honeycomb structure (36) in abutting engagement. Honeycomb structure (36) is made up of a number of closely spaced honeycomb blocks (36a) fixed about a liner (40), one or more of which blocks, if struck by a broken fan blade portion, will move relative to those not struck, in a radially outward direction, thus reducing the crushing force of the blow, and only flexing casing (30) instead of permanently deforming or puncturing it.

REFERENCES:
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patent: 6543991 (2003-04-01), Sathianathan et al.
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patent: 1 245 791 (2002-10-01), None
patent: 1 336 739 (2003-08-01), None

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