Gas turbine engine vane end devices
AssigneesRolls-Royce North American Technologies Inc., ROLLS-ROYCE plc
InventorsLinnea Taketa, John Munson, Ted J. Freeman
Life of this patent
Estimating the term…
Abstract
A turbomachinery component of a gas turbine engine is disclosed having a number of techniques of reducing the effects of a gap flow between an airfoil member of the gas turbine engine and a wall of the gas turbine engine. The airfoil member can be variable and in one form is a variable turbine vane. In one embodiment a brush seal is included between the vane and the wall. In another form a wear surface is disposed between the vane and the wall. In yet another form a moveable member capable of being actuated to change position can be disposed between the vane and the wall to alter the size of a gap between the two.
Claims20
An apparatus comprising:
- a rotatable airfoil member for a gas turbine engine having an end structured to contact a wall of the gas turbine engine, the end having an abradable coating configured to wear according to a contact between the coating and the wall of the gas turbine engine.
An apparatus comprising:
- a rotatable airfoil member for a gas turbine engine, the airfoil member having a first end and a second end spaced apart radially from the first end relative to a central axis, the first end formed to include a first squealer member that extends radially outward away from the first end relative to the central axis, and the rotatable airfoil member configured to rotate about a rotation axis that extends perpendicular to the central axis;
- and
- a wall arranged circumferentially around the first end of the rotatable airfoil member relative to the axis;
- wherein the rotatable airfoil member further includes a first wear surface disposed on a radial terminating tip of the first squealer member and the first wear surface is configured to be abraded when relative movement between the rotatable airfoil member and the wall causes the rotatable airfoil member and the wall to contact each other.
Dependencies are inferred from the claim text.