Stator shroud with mechanical retention
AssigneeUnited Technologies Corporation
InventorsDene A. Montgomery, Colin G. Amadon
Life of this patent
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Abstract
A stator assembly for a gas turbine engine includes an arcuate shroud including a shroud pocket, the shroud pocket having a shroud slot extending therethrough. A stator vane is insertable into the shroud pocket and includes a vane slot extending therethrough. A strap extends through the shroud slot and the vane slot to retain the vane to the shroud. A gas turbine engine includes a combustor and a stator and case assembly in in fluid communication with the combustor. The stator and case assembly includes a case defining a working fluid flowpath for the gas turbine engine and a stator assembly secured at the case.
Claims15
A stator assembly for a gas turbine engine, comprising:
- an arcuate shroud including a shroud pocket formed in a surface wall of the shroud and extending from a flowpath surface of the shroud, the shroud pocket including:
- a shroud pocket base defining a depth of the shroud pocket;
- and
- a shroud pocket sidewall extending from the shroud pocket base to the flowpath surface, the shroud pocket sidewall having a shroud slot extending therethrough;
- a stator vane insertable into the shroud pocket and including a vane slot extending therethrough, the shroud pocket base defining a depth to which the stator vane may be inserted into the shroud pocket;
- and
- a strap extending through the shroud slot and the vane slot to retain the vane to the shroud.
A stator and case assembly for a gas turbine engine comprising:
- a case defining a working fluid flowpath for the gas turbine engine;
- and
- a stator assembly secured at the case, the stator assembly including a plurality of stator segments arranged circumferentially about an engine axis, each stator segment including:
- an arcuate shroud including a shroud pocket formed in a surface wall of the shroud and extending from a flowpath surface of the shroud, the shroud pocket including:
- a shroud pocket base defining a depth of the shroud pocket;
- and
- a shroud pocket sidewall extending from the shroud pocket base to the flowpath surface, the shroud pocket sidewall having a shroud slot extending therethrough;
- a stator vane insertable into the shroud pocket and including a vane slot extending therethrough, the shroud pocket base defining a depth to which the stator vane may be inserted into the shroud pocket;
- and
- a strap extending through the shroud slot and the vane slot to retain the vane to the shroud.
A gas turbine engine, comprising:
- a combustor;
- and
- a stator and case assembly in in fluid communication with the combustor, the stator and case assembly including:
- a case defining a working fluid flowpath for the gas turbine engine;
- and
- a stator assembly secured at the case, the stator assembly including a plurality of stator segments arranged circumferentially about an engine axis, each stator segment including:
- an arcuate shroud including a shroud pocket formed in a surface wall of the shroud and extending from a flowpath surface of the shroud, the shroud pocket including:
- a shroud pocket base defining a depth of the shroud pocket;
- and
- a shroud pocket sidewall extending from the shroud pocket base to the flowpath surface, the shroud pocket sidewall having a shroud slot extending therethrough;
- a stator vane insertable into the shroud pocket and including a vane slot extending therethrough, the shroud pocket base defining a depth to which the stator vane may be inserted into the shroud pocket;
- and
- a strap extending through the shroud slot and the vane slot to retain the vane to the shroud.
Dependencies are inferred from the claim text.