Patent ID: 11965653
Assignee: GENERAL ELECTRIC COMPANY
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 13:
14. A combustor liner for a combustor of a gas turbine engine, the combustor liner comprising:
a liner having a cold surface side and a hot surface side, the liner defining an upstream end and a downstream end; and
a dilution opening through the liner, the dilution opening comprising:
a cylindrical main dilution hole portion having an upstream edge and a downstream edge, a centerline axis extending through a centerpoint of the cylindrical main dilution hole portion;
a notched portion disposed at the upstream edge and extending upstream from the upstream edge, the notched portion being in fluid communication with the main dilution hole portion, wherein the notched portion defines, in a plan view of the cold surface side of the liner, a V-shaped notch with an apex thereof arranged upstream of the upstream edge and the apex being arranged on the centerline axis, a width of a base of the V-shaped notch, with respect to the centerline axis, at an intersection of the base with the upstream edge on the cold surface side of the liner being less than a diameter of the cylindrical main dilution hole portion; and
a slotted portion disposed at the downstream edge and extending downstream of the downstream edge, the slotted portion being in fluid communication with the main dilution hole portion, and the slotted portion, in the plan view of the cold surface side of the liner, defining a generally rectangular shape with a curved downstream end.