Reinforced composite fan blade

Details Reinforced composite fan blade Reinforced composite fan blade

2009-05-13

2011-12-13

Lebentritt, Michael (Department: 2829)

Fluid reaction surfaces (i.e., impellers)

Specific working member mount

Welded, cemented or fused

C416S224000, C416S226000, C416S22900R, C416S24100B

Reexamination Certificate

active

08075274

ABSTRACT:
A fan blade for a turbine engine includes an exterior surface defining an airfoil that is provided by leading and trailing edges, opposing generally chord-wise surfaces interconnecting the leading and trailing edges, and a tip. The airfoil extends from a root. A fan rotor includes a slot that receives the root. A spar is constructed from a first material and includes opposing sides. The spar provides at least a portion of the exterior surface. A sheath is constructed from a second material different than the first material. The sheath is arranged on both of the opposing sides to provide at least a portion of the exterior surface at the opposing surfaces.

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Extended European Search Report for International Application No. EP 10 25 0916 dated Jul. 13, 2011.

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