Airfoil with powder damper
AssigneeUnited Technologies Corporation
InventorsTracy A. Propheter-Hinckley, Gregory M. Dolansky, Benjamin T. Fisk, Robert J. Treen
Life of this patent
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Abstract
An airfoil includes an airfoil body that defines a longitudinal axis. The airfoil body includes a leading edge and a trailing edge and a first sidewall and a second sidewall that is spaced apart from the first sidewall. The first sidewall and the second sidewall join the leading edge and the trailing edge and at least partially define at least one longitudinally elongated cavity in the airfoil body. A plurality of loose particles is enclosed in the at least one longitudinally elongated cavity.
Claims21
An airfoil comprising:
- an airfoil body defining a longitudinal axis, the airfoil body including a leading edge and a trailing edge and a first side wall and a second side wall that is spaced apart from the first side wall, the first side wall and the second side wall joining the leading edge and the trailing edge and at least partially defining at least one longitudinally elongated cavity in the airfoil body;
- and
- a plurality of loose particles enclosed in the at least one longitudinally elongated cavity.
A turbine engine comprising:
- optionally, a fan;
- a compressor section;
- a combustor in fluid communication with the compressor section;
- and
- a turbine section in fluid communication with the combustor, the turbine section being coupled to drive the compressor section and the fan, and
- at least one of the fan, the compressor section and the turbine section including an airfoil having an airfoil body defining a longitudinal axis, the airfoil body including a leading edge and a trailing edge and a first side wall and a second side wall that is spaced apart from the first side wall, the first side wall and the second side wall joining the leading edge and the trailing edge and at least partially defining at least one longitudinally elongated cavity in the airfoil body, and a plurality of loose particles are enclosed in the at least one longitudinally elongated cavity.
A method for processing an airfoil, the method comprising:
- depositing multiple layers of a powdered metal onto one another;
- joining the layers to one another with reference to data relating to a particular cross-section of an airfoil;
- and
- producing the airfoil with an airfoil body defining a longitudinal axis, the airfoil body including a leading edge and a trailing edge and a first side wall and a second side wall that is spaced apart from the first side wall, the first side wall and the second side wall joining the leading edge and the trailing edge and at least partially defining at least one longitudinally elongated cavity in the airfoil body and a plurality of loose particles enclosed in the at least one longitudinally elongated cavity.
Dependencies are inferred from the claim text.