Blade containment structure

Details Blade containment structure Blade containment structure

F - Mech Eng,Light,Heat,Weapons

01

D

170/81

F01D 5/12 (2006.01) F01D 21/04 (2006.01)

Patent

CA 1207240

ABSTRACT OF THE DISCLOSURE BLADE CONTAINMENT STRUCTURE A blade containment structure employs a two-layer honeycomb region radially outward of a fan blade rub strip. The two layers are separated by a septum and each layer contributes independently to strength and stiffness of the structure. A Kevlar blanket radially outward of the honeycomb region retains blade fragments which may be broken loose by ingestion of large objects such as, for example, birds. The radially inner honeycomb region is deep enough to position the septum out of the orbit of blade tips in an engine made unbalanced by loss of one or more fan blades. The septum and outer honeycomb region retains sufficient strength in the structure supporting forward components.

443399

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