Rotor seal segment
AssigneeROLLS-ROYCE plc
InventorsAnthony G. Razzell, Steven M. Hillier
Life of this patent
Estimating the term…
Abstract
A ceramic seal segment for a shroud ring of a rotor of a gas turbine engine, the ceramic seal segment positioned radially adjacent the rotor and characterized by being a hollow section that defines an inlet and an outlet for the passage of coolant therethrough.
Claims20
A ceramic seal segment for a shroud ring of a rotor of a gas turbine engine, the ceramic seal segment positioned radially adjacent the rotor, the ceramic seal segment being a box section with a hollow interior that defines an inlet and an outlet for passage of coolant therethrough.
A ceramic seal segment for a shroud ring of a rotor of a gas turbine engine, the ceramic seal segment positioned radially adjacent the rotor and characterised by being a hollow section that defines an inlet and an outlet for the passage of coolant therethrough,
- wherein a cascade impingement device is provided within the hollow section seal segment, the cascade impingement device defining a plurality of chambers in flow sequence, each chamber having an array of holes through which the coolant passes and thereby creates a plurality of coolant jets that impinge on a radially inner surface or a radially inner wall of the seal segment.
A ceramic seal segment for a shroud ring of a rotor of a gas turbine engine, the ceramic seal segment positioned radially adjacent the rotor and characterised by being a hollow section that defines an inlet and an outlet for the passage of coolant therethrough,
- wherein the seal segment is held in position via a mounting sleeve, which is mounted to a cassette via fasteners.
Dependencies are inferred from the claim text.