Engine blade containment shroud using quartz fiber composite

Details Engine blade containment shroud using quartz fiber composite Engine blade containment shroud using quartz fiber composite

2005-12-27

2005-12-27

Look, Edward K. (Department: 3745)

Rotary kinetic fluid motors or pumps

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

C415S173300, C415S174200

Reexamination Certificate

active

06979172

ABSTRACT:
An engine fan containment shroud including a containment structure composed of a composite material including a reinforcing fiber having an elongation to break of at least about 3.6%. The preferred fiber is a quartz fiber having an elongation to break of at least about 5%. Additionally or alternatively, the reinforcing fiber, in particular quartz fiber, has a hardness of at least about 4 on the Mohs scale, as measured on bulk material, which resists cutting by an impacting object. The composite material and specifically an epoxy/quartz fiber composite provides for weight reduction while providing fan blade containment without loss of structural integrity and with improved resistance to impact and puncture.

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