Sleeve for serially-arranged seal elements
AssigneePratt & Whitney Canada Corp.
InventorLorenzo Sanzari
Life of this patent
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Abstract
A seal arrangement of a gas turbine engine includes two seal assemblies arranged in a serial relationship relative to an engine central longitudinal axis. Each seal assembly includes a seal carrier, and a primary seal element positioned in the seal carrier and configured to seal to a rotating component of the gas turbine engine abutting the primary seal element. A seal sleeve is positioned radially outboard of the seal carriers of the two seal assemblies. The seal sleeve is configured to retain the two seal assemblies in position abutting the rotating component.
Claims20
A seal arrangement of a gas turbine engine, comprising:
- two seal assemblies arranged in a serial relationship relative to an engine central longitudinal axis, each seal assembly including:
- a seal carrier;
- and
- a primary seal element disposed radially inboard of the seal carrier and configured to seal to a rotating component of the gas turbine engine abutting the primary seal element;
- and
- a seal sleeve disposed radially outboard of the seal carriers of the two seal assemblies, the seal sleeve configured to retain the two seal assemblies in position abutting the rotating component.
A bearing arrangement of a gas turbine engine, comprising:
- a bearing housing;
- a bearing assembly disposed in the bearing housing, including:
- a bearing inner race;
- a bearing outer race disposed radially outwardly from the bearing inner race;
- and
- one or more bearing elements located radially between the bearing inner race and the bearing outer race;
- and
- a seal arrangement disposed in the bearing housing, including:
- two seal assemblies arranged in a serial relationship relative to an engine central longitudinal axis, each seal assembly including:
- a seal carrier;
- and
- a primary seal element disposed radially inboard of the seal carrier and configured to seal to a rotating component of the gas turbine engine abutting the primary seal element;
- and
- a seal sleeve disposed radially outboard of the seal carriers of the two seal assemblies, the seal sleeve configured to retain the two seal assemblies in position abutting the rotating component.
A gas turbine engine, comprising:
- one or more rotating shafts;
- one or more turbines operably connected to the one or more rotating shafts;
- one or more bearing arrangements, each bearing arrangement supportive of a shaft of the one or more rotating shafts, a bearing arrangement of the one or more bearing arrangements, including:
- a bearing housing;
- a bearing assembly disposed in the bearing housing, including:
- a bearing inner race;
- a bearing outer race disposed radially outwardly from the bearing inner race;
- and
- one or more bearing elements located radially between the bearing inner race and the bearing outer race;
- and
- a seal arrangement disposed in the bearing housing, including:
- two seal assemblies arranged in a serial relationship relative to an engine central longitudinal axis, each seal assembly including:
- a seal carrier;
- and
- a primary seal element disposed radially inboard of the seal carrier and configured to seal to a rotating component of the gas turbine engine abutting the primary seal element;
- and
- a seal sleeve disposed radially outboard of the seal carriers of the two seal assemblies, the seal sleeve configured to retain the two seal assemblies in position abutting the rotating component.
Dependencies are inferred from the claim text.