Patent ID: 11920791
Assignee: GENERAL ELECTRIC COMPANY
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A trapped vortex reverse flow combustor for a gas turbine, the trapped vortex reverse flow combustor comprising:
a first dome structure having a plurality of first-dome vortex driver airflow openings through the first dome structure;
a forward outer liner extending from an outer end of the first dome structure;
an inner liner extending from an inner end of the first dome structure;
a second dome structure arranged downstream of the first dome structure and including a plurality of second-dome vortex driver airflow openings, and a plurality of primary driver airflow openings; and
an aft outer liner radially arranged between the forward outer liner and the inner liner,
wherein (a) a trapped vortex cavity is defined by the first dome structure, the forward outer liner, and the second dome structure, (b) the second dome structure extends between the forward outer liner and the aft outer liner, (c) the plurality of the first-dome vortex driver airflow openings providing a first vortex generating mid airflow therethrough to the trapped vortex cavity, (d) the plurality of the second-dome vortex driver airflow openings providing a first vortex generating outer airflow therethrough to the trapped vortex cavity, the first vortex generating mid airflow and the first vortex generating outer airflow generating a first trapped vortex flow within the trapped vortex cavity, (e) the plurality of primary driver airflow openings providing a primary driver airflow therethrough radially inward of the trapped vortex cavity, and (f) the first dome structure, the forward outer liner, the second dome structure, the aft outer liner, and the inner liner define a reverse flow combustion chamber therewithin that reverses a flow direction of the primary driver airflow through the reverse flow combustion chamber, and
wherein the inner liner includes a plurality of inner liner airflow openings providing a secondary driver airflow therethrough, the primary driver airflow and the secondary driver airflow generating a secondary combustion zone vortex flow in a secondary combustion zone defined radially inward of the trapped vortex cavity.