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US 8,814,527 B2Granted
Titanium sheath and airfoil assembly
AssigneeHamilton Sundstrand Corporation
InventorsBrian P. Huth, Paul A. Carvalho
Life of this patent
Estimating the term…
Abstract
An airfoil assembly includes an airfoil body extending between a leading edge, a trailing edge, a suction side, and a pressure side. A first sheath having an outer side and an inner side forms a cavity for receiving at least a portion of the airfoil body and is bonded on the inner side to the leading edge of the airfoil body. The first sheath is formed of a titanium-based metallic material. A second sheath is bonded to the outer side of the first sheath.
Claims18
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.
1 more element
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 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, the first sheath being formed from a titanium-based metallic material, the 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 nose near the leading edge, wherein the first plate and the second plate include respective notches that abut against the leading edge of the airfoil body, the first plate and the second plate each having a uniform wall thickness from the respective notches to a tip of the nose, and wherein the nose of the first sheath extends forward relative to the leading edge of the airfoil body and includes a seam where the first plate and the second plate meet;
- and
- a second sheath bonded to the outer side of the first sheath.
1 more element
A sheath for an airfoil assembly, comprising:
- a first sheath body including a first plate and a second plate that meet at a seam at a nose, the first sheath body having an outer side and an inner side that forms a cavity for receiving at least a portion of an airfoil body, the first sheath being formed of a titanium-based metallic material;
- and
- a second, metal sheath body bonded to the outer side of the first sheath body.
A sheath for an airfoil assembly, comprising:
- a first sheath body having an outer side and an inner side that forms a cavity for receiving at least a portion of an airfoil body, the first sheath being formed of a titanium-based metallic material, the first sheath including a first plate and a second plate that meet at a nose, the nose extending forward relative to the cavity and including a seam where the first plate and the second plate meet, and wherein the first plate and the second plate include respective notches within the cavity, the first plate and the second plate each having a uniform wall thickness from the respective notches to a tip of the nose;
- and
- a second sheath body bonded to the outer side of the first sheath body.
A method for protecting an airfoil assembly, comprising:
- providing an airfoil body that extends between a leading edge, a trailing edge, a suction side, and a pressure side with a first sheath and a second sheath bonded to an outer side of the first sheath, the 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 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, and the first sheath being formed of a titanium-based metallic material.
Dependencies are inferred from the claim text.