Patent ID: 9416673
Filing Date: 2016-08-16
CPC Classification: F01D

Claim Text:
1. A turbine section comprising: first and second turbine rotors each carrying turbine blades for rotation about a central axis, said rotors each having at least one rotating seal at a radially inner location; a vane section formed of a plurality of circumferentially spaced vane components, each of said vane components having an airfoil extending radially outwardly of a platform; a first seal fixed to said platform, said first seal having a seal material positioned to be adjacent said at least one rotating seal from the first rotor which is positioned in one axial direction relative to said first seal; a second seal extending circumferentially beyond at least a plurality of said vane components, said second seal having seal material positioned to be adjacent said at least one rotating seal of the second rotor on an opposed axial side from said first rotor, the second seal extends for a greater circumferential extent than does the first seal; said first and second seals include said seal material mounted onto a seal mount, and wherein said material is more abradable than a material forming said mount; and a first arm is fixed to said platform and extends radially inwardly in an opposed direction from said airfoil, with said arm extending to said seal mount for said first seal, and a second arm extending radially inwardly from platform, with said second arm including a connection to said mount for said second seal that allows movement.