Patent ID: 11898752
Assignee: GENERAL ELECTRIC COMPANY
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A hollow plank of a combustor liner that defines a combustion chamber, the hollow plank comprising:
an inner wall having a plurality of inner openings and one or more inner holes;
an outer wall having one or more outer openings and a plurality of outer holes;
a plurality of lateral walls coupled to the inner wall and the outer wall to define a cavity; and
a partition wall connected to the plurality of lateral walls, provided between the inner wall and the outer wall, and dividing the cavity into a first sub-cavity and a second sub-cavity,
wherein the outer wall, the partition wall, and the plurality of lateral walls define the first sub-cavity, and the inner wall, the partition wall, and the plurality of lateral walls define the second sub-cavity,
wherein the one or more outer openings in the outer wall communicate with the first sub-cavity,
wherein the plurality of outer holes in the outer wall communicate through a plurality of tubes with the second sub-cavity to bypass the first sub-cavity,
wherein the plurality of inner openings in the inner wall communicate with the second sub-cavity,
wherein the one or more inner holes in the inner wall communicate with the first sub-cavity through one or more bypass tubes to bypass the second sub-cavity, and
wherein the first sub-cavity or the second sub-cavity or both are frequency tuned to reduce combustion dynamic frequencies.