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AssigneeUnited Technologies Corporation
InventorPhilip Robert Rioux
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Abstract
An arrangement of a rotating component and a stationary component of a gas turbine engine includes a rotating component, a stationary component positioned to define an actual gap between the rotating component and the stationary component, and a flow restriction feature formed at one of the stationary component or the rotating component. The flow restriction feature is configured to induce a recirculation flow at the actual gap, thereby defining an effective gap between the rotating component and the stationary component to reduce a leakage flow therebetween, while maintaining the actual gap greater than the effective gap.
Claims20
An arrangement of a rotating component and a stationary component of a gas turbine engine, comprising:
- a rotating component;
- a stationary component positioned to define an actual gap between the rotating component and the stationary component;
- and
- a flow restriction feature formed at one of the stationary component or the rotating component, the flow restriction feature configured to induce a recirculation flow at the actual gap, thereby defining an effective gap between the rotating component and the stationary component to reduce a leakage flow therebetween, while maintaining the actual gap greater than the effective gap.
A turbine assembly of a gas turbine engine, comprising:
- a turbine rotor rotatable about a central axis of the gas turbine engine;
- a turbine stator located axially adjacent to the turbine rotor defining an actual gap between the turbine rotor and the turbine stator, the turbine stator configured to be stationary relative to the central axis;
- and
- a flow restriction feature formed at the turbine configured to induce a recirculation flow at the actual gap, thereby defining an effective gap between the turbine rotor and the turbine stator to reduce a leakage flow therebetween, while maintaining the actual gap greater than the effective gap.
A gas turbine engine, comprising:
- a rotating component;
- a stationary component positioned to define an actual gap between the rotating component and the stationary component;
- and
- a flow restriction feature formed at one of the stationary component or the rotating component, the flow restriction feature configured to induce a recirculation flow at the actual gap, thereby defining an effective gap between the rotating component and the stationary component to reduce a leakage flow therebetween, while maintaining the actual gap greater than the effective gap.
Dependencies are inferred from the claim text.