Rotor assembly for gas turbine engines
AssigneeRtx Corporation
InventorsJason Husband, James Glaspey, Aaron John Pepin
Life of this patent
Estimating the term…
Abstract
A rotor assembly for a gas turbine engine includes a rotatable hub that has a main body and an array of annular flanges that extend about an outer periphery of the main body to define an array of annular channels. An array of airfoils are circumferentially distributed about the outer periphery. Each one of the airfoils includes an airfoil section extending from a root section received in the annular channels. Retention pins extend through the root section of a respective one of the airfoils and through the array of annular flanges to mechanically attach each root section to the hub.
Claims20
A rotor assembly for a gas turbine engine comprising:
- a rotatable hub including a metallic main body extending along a longitudinal axis, and including an array of annular flanges extending about an outer periphery of the main body to define an array of annular channels along the longitudinal axis;
- an array of airfoils circumferentially distributed about the outer periphery, each one of the airfoils including an airfoil section extending from a root section received in the annular channels;
- a plurality of retention pins, each one of the retention pins extending through the root section of a respective one of the airfoils and through the array of annular flanges to mechanically attach each root section to the hub;
- and
- wherein each of the retention pins includes a plurality of segments slideably received on an elongated carrier, and the carrier defines a curved pin axis when in an installed position.
A gas turbine engine comprising:
- a compressor section including a compressor;
- a turbine section including a turbine;
- and
- a propulsor section including a propulsor shaft rotatable about an engine longitudinal axis, wherein the propulsor section includes a rotor assembly, the rotor assembly comprising:
- a rotatable hub including a main body mechanically attached to the propulsor shaft, and including an array of annular flanges extending about an outer periphery of the main body to define an array of annular channels along the engine longitudinal axis;
- an array of airfoils each including an airfoil section extending from a root section;
- and
- a plurality of retention pins, each one of the retention pins extending through the root section of a respective one of the airfoils and through the array of annular flanges to mechanically attach each root section to the hub, and wherein each of the retention pins includes a plurality of segments slideably received on an elongated carrier.
Dependencies are inferred from the claim text.