Hydrostatic seal with seal stops
AssigneeUnited Technologies Corporation
InventorsConway Chuong, Michael L. DiFrancesco
Life of this patent
Estimating the term…
Abstract
A hydrostatic seal assembly includes a seal carrier, a seal shoe located at the seal carrier and configured for travel relative to the seal carrier to maintain a selected gap between the seal shoe and a rotating component, and a travel stop. The travel stop includes a stop rib located at one of the seal carrier or the seal shoe, and a stop groove located at the other of the seal carrier or the seal shoe. The stop rib is positioned at least partially in the stop groove to limit travel of the seal shoe relative to the seal carrier.
Claims20
A hydrostatic seal assembly, comprising:
- a seal carrier;
- a seal shoe disposed at the seal carrier and configured for travel relative to the seal carrier to maintain a selected gap between the seal shoe and a rotating component;
- and
- a travel stop including:
- a stop rib disposed at one of the seal carrier or the seal shoe;
- and
- a stop groove disposed at the other of the seal carrier or the seal shoe, the stop rib disposed at least partially in the stop groove to limit travel of the seal shoe relative to the seal carrier.
A turbine section of a gas turbine engine, comprising:
- a turbine stator;
- a turbine rotor configured to rotate about an engine central longitudinal axis relative to the turbine stator;
- and
- a hydrostatic seal assembly comprising:
- a seal carrier;
- a seal shoe disposed at the seal carrier and configured for travel relative to the seal carrier to maintain a selected gap between the seal shoe and the turbine rotor;
- and
- a travel stop including:
- a stop rib disposed at one of the seal carrier or the seal shoe;
- and
- a stop groove disposed at the other of the seal carrier or the seal shoe, the stop rib disposed at least partially in the stop groove to limit travel of the seal shoe relative to the seal carrier.
A gas turbine engine, comprising:
- a combustor;
- a turbine section in fluid communication with the combustor, the turbine section comprising:
- a turbine stator;
- a turbine rotor configured to rotate about an engine central longitudinal axis relative to the turbine stator;
- and
- a hydrostatic seal assembly comprising:
- a seal carrier;
- a seal shoe disposed at the seal carrier and configured for travel relative to the seal carrier to maintain a selected gap between the seal shoe and the turbine rotor;
- and
- a travel stop including:
- a stop rib disposed at one of the seal carrier or the seal shoe;
- and
- a stop groove disposed at the other of the seal carrier or the seal shoe, the stop rib disposed at least partially in the stop groove to limit travel of the seal shoe relative to the seal carrier.
Dependencies are inferred from the claim text.