Turbine engine diffuser assembly with airflow mixer
AssigneeUnited Technologies Corporation
InventorsFrank J. Cunha, Stanislav Kostka
Life of this patent
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Abstract
A diffuser assembly is provided for a turbine engine. This diffuser assembly includes a diffuser module with a combustor plenum and a mixing chamber. The diffuser module is configured to receive first and second airflows into the mixing chamber and direct a mixed airflow out of the mixing chamber. The diffuser module includes a mixer configured to mix the first and the second airflows together within the mixing chamber to provide the mixed airflow.
Claims14
A diffuser assembly for a turbine engine, the assembly comprising:
- a diffuser module with a combustor plenum and a mixing chamber;
- the diffuser module configured to receive a first airflow and a second airflow into the mixing chamber and direct a mixed airflow out of the mixing chamber;
- the diffuser module including a mixer configured to mix the first airflow and the second airflow together within the mixing chamber to provide the mixed airflow;
- an inlet through which at least a portion of the first airflow is directed into the mixing chamber;
- the mixing chamber comprising a mixing device located at the inlet, and the mixer configured to diffuse the first airflow into the mixing chamber;
- and
- wherein the mixing device is configured with a cupped body and a plurality of perforations through the cupped body.
An assembly for a turbine engine, the assembly comprising:
- a diffuser module with an inlet passage, a mixing chamber and a first inlet and a second inlet leading into the mixing chamber, the diffuser module including a hollow strut and a mixer;
- the hollow strut extending across the inlet passage and fluidly coupled with the mixing chamber;
- the mixer configured to provide a flow obstruction between the first inlet and the hollow strut, wherein the mixer comprises a mixing device located at the second inlet;
- and
- wherein the mixing device is configured with a cupped body and a plurality of perforations through the cupped body.
A method involving a diffuser module of a turbine engine, the method comprising:
- receiving a first airflow and a second airflow in a mixing chamber of the diffuser module;
- mixing the first airflow and the second airflow together within the mixing chamber using a mixer to provide a mixed airflow;
- providing the mixed airflow to another component of the turbine engine;
- wherein the first airflow is a conditioned airflow and the second airflow has a higher pressure than the first airflow;
- wherein the mixer comprises a mixing device and is discrete from a fuel injector assembly for the turbine engine;
- and
- wherein the mixing device is configured with a cupped body and a plurality of perforations through the cupped body.
Dependencies are inferred from the claim text.