Patent ID: 8814527
Filing Date: 2014-08-26
Classification: B64C,F01D,F04D,F05D

Abstract:
1. An airfoil assembly comprising: an airfoil body extending between a leading edge, a trailing edge, a suction side, and a pressure side; a first sheath including a first plate on the suction side of the airfoil body and a second plate on the pressure side of the airfoil body that meet at a seam at a nose near the leading edge, the first sheath having an outer side and an inner side that forms a cavity for receiving at least a portion of the airfoil body, the inner side being bonded to the leading edge of the airfoil body, and the first sheath being formed from a titanium-based metallic material; and a second sheath bonded to the outer side of the first sheath.