Patent ID: 11927110
Assignee: GENERAL ELECTRIC COMPANY
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 10:
11. An engine component for a turbine engine which generates a hot gas flow, and provides a cooling fluid flow, comprising:
a wall separating the hot gas flow from the cooling fluid flow and having a heated surface along which the hot gas flows and a cooled surface facing the cooling fluid flow; and
at least one cooling hole comprising:
a connecting passage having a centerline and extending between an inlet at the cooled surface and an outlet at the heated surface, with the inlet defining a first inlet dimension and with the outlet defining a first outlet dimension greater than the first inlet dimension,
a diffusing section terminating in the outlet and having an increasing cross-sectional area in a direction toward the heated surface, and
a recessed portion extending from the inlet toward the diffusing section and defining the first inlet dimension;

wherein the inlet defines a second inlet dimension and the outlet defines a second outlet dimension less than the second inlet dimension;
wherein the first inlet dimension and the second inlet dimension are measured along a first plane, intersecting an upstream edge of the inlet at the cooled surface, and perpendicular to the centerline; and
wherein the first outlet dimension and the second outlet dimension are measured along a second plane parallel to the first plane, intersecting a downstream edge of the outlet at the heated surface, and perpendicular to the centerline;
wherein the outlet defines a first bound area and the inlet defines a second bound area; and
wherein first bound area is larger than the second bound area.