Gas turbine seal assembly and seal support
AssigneeUnited Technologies Corporation
InventorsMatthew Budnick, Conway Chuong
Life of this patent
Estimating the term…
Abstract
A gas turbine engine assembly includes a second module interconnected with a first module along a joint such that a surface of a second radial wall faces a surface of a first radial wall, with a cavity defined in part by the first and second radial walls. A seal assembly includes a finger seal, and a seal support ring having a backing ring portion and a flow discourager arm. The backing ring is secured to one of the first radial wall and the second radial wall, and the flow discourager arm extends axially through the cavity into a recess formed in the other of the first and second radial walls. The finger seal includes a free end contacting an inner side of the flow discourager arm.
Claims20
An assembly for a gas turbine engine, comprising:
- a first module including a first radial wall;
- a second module including a second radial wall, the second module interconnected with the first module along a joint such that a surface of the second radial wall faces a surface of the first radial wall;
- a cavity defined in part by the first radial wall and the second radial wall;
- and
- a seal assembly disposed proximate the cavity, the seal assembly comprising:
- a seal support ring including a backing ring portion and a flow discourager arm, the backing ring secured to one of the first radial wall and the second radial wall, and the flow discourager arm extending axially through the cavity into a recess formed in the other of the first radial wall and the second radial wall;
- and
- a first finger seal including a fixed end and a free end, the free end contacting an inner side of the flow discourager arm.
A turbine assembly for a gas turbine engine, the turbine assembly comprising:
- a turbine exhaust case assembly including a first outer case section with a first radial wall;
- a second module including a second outer case section with a second radial wall, the second outer case section interconnected with the first case section such that a surface of the first radial wall faces a surface of the second radial wall;
- a seal support ring including a backing ring portion mounted to the first radial wall, and a discourager portion extending from the backing ring portion and into a recess formed in the second radial wall for reducing a leakage flow reaching an interconnection of the first outer case and the second outer case;
- and
- a first finger seal having a fixed end and a free end, the free end contacting an inner side of the discourager portion for sealing a fairing cavity.
A seal support for a gas turbine engine, the seal support comprising:
- means for securing the seal support to a radial wall of a gas turbine module;
- and
- means for discouraging a leakage flow from entering a cavity defined in part by the radial wall, wherein the discouraging means are arranged substantially perpendicular to the securing means.
Dependencies are inferred from the claim text.