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US 9,803,481 B2Granted
Reduced vibratory response rotor for a gas powered turbine
AssigneeUnited Technologies Corporation
InventorsNicholas Aiello, Bob S. Bamford
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Abstract
A rotor for a turbomachine includes a rim defining a base of a rotor, an airfoil shaped blade extending from said rim and defining a chord line and a bore extending from said rim opposite said airfoil shaped blade. The rim further includes at least one rail extending away from said airfoil shaped blade.
Claims16
A rotor for a turbomachine comprising:
- a rim defining a base of a rotor;
- an airfoil shaped blade extending from said rim and defining a chord line;
- a bore extending from said rim opposite said airfoil shaped blade;
- and
- the rim further including at least one rail operable to stiffen said rim at said rail and extending radially inward beyond a self-sustaining radius of the rotor and away from said airfoil shaped blade, wherein the bore extends further radially inward from the rim than said at least one rail.
2 more elements
A method for reducing rotor stress comprising:
- stiffening at least one of a forward extremity and an aft extremity of a rotor rim by incorporating a first rail at the stiffened extremity, wherein the rotor rim defines a base of a rotor, and wherein a bore extends radially inward from said rotor rim, and the rotor rim further including at least one rail extending radially inward from the rotor rim beyond a self-sustaining radius of the rotor, wherein the bore extends further radially inward from the rotor rim than said at least one rail.
A gas turbine comprising:
- a compressor section;
- a combustor fluidly connected to the compressor section;
- a turbine section fluidly connected to the combustor;
- each of said compressor section and said turbine section having a plurality of stages, and each of said plurality of stages having a plurality of rotors;
- at least one of said plurality of rotors including
- a rim defining a base of the rotor;
- an airfoil shaped blade extending from said rim and defining a chord line;
- a bore extending from said rim opposite said airfoil shaped blade;
- and
- the rim further including at least one rail extending radially inward beyond a self-sustaining radius of the rotor and away from said airfoil shaped blade, wherein the at least one rail is operable to stiffen said rim at said rail, and wherein the bore extends farther radially inward than the at least one rail.
7 more elements
Dependencies are inferred from the claim text.