Spacer for power turbine inlet heat shield
AssigneeUnited Technologies Corporation
InventorsFernando K. Grant, Fabian D. Betancourt
Life of this patent
Estimating the term…
Abstract
A gas turbine engine comprises an exhaust section member, a turbine section member, a heat shield and a spacer. The turbine section member is coupled to the exhaust section member. The heat shield is retained between the exhaust section member and the turbine section member. The spacer is positioned between the exhaust section member and the turbine section member to produce a gap for the heat shield. In one embodiment, the exhaust section member comprises a duct and the turbine section member comprises a bearing support.
Claims17
A gas turbine engine comprising:
- an exhaust section member;
- a turbine section member coupled to the exhaust section member;
- a heat shield retained between the exhaust section member and the turbine section member, wherein the exhaust section member is coupled to the turbine section member via a fastener extending through the exhaust section member, the heat shield and the turbine section member;
- and
- a spacer positioned between the exhaust section member and the turbine section member to produce a gap for the heat shield.
An exhaust duct mounting assembly comprising:
- a bearing support;
- a duct member coupled to the bearing support at a mechanical joint;
- a heat shield disposed between the bearing support and duct member and retained by the mechanical joint;
- and
- a spacer positioned in the mechanical joint to provide a gap between the bearing support and the duct member that permits movement of the heat shield, wherein the spacer is disposed within a slot of a flange extending from the duct member and extends into an opening in the heat shield.
A gas turbine engine coupling comprising:
- a gas path member having a flange with a recess;
- a static support member having a rim with a bore;
- a heat shield extending along the flange and the rim and having an opening disposed adjacent the recess and bore;
- a spacer disposed in the recess adjacent the bore and configured to extend through the opening, the spacer having a through-bore, wherein the spacer forms a gap between the flange and the rim for the heat shield, the gap being wider than the heat shield is thick;
- and
- a fastener extending through the flange, the opening and the through-bore and into the bore.
The gas turbine engine coupling of 15 and further comprising:
- a retention ring disposed adjacent the flange opposite the heat shield;
- wherein the fastener extends through the retention ring.
Dependencies are inferred from the claim text.