Patent ID: 11913353
Assignee: RTX CORPORATION
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 5:
6. The airfoil as recited in claim 1, wherein:
the tip portion includes at least one cooling passage extending between an inlet port and an exit port, the inlet port is established along the serpentine cooling passage, the exit port is established along a shelf floor of the tip shelf, and the shelf wall includes an arcuate section dimensioned to follow a perimeter of the exit port to establish the serpentine profile; and
the tip portion includes a plurality of cooling passages having respective inlet ports established along the tip flag section and having respective exit ports distributed in a row along the shelf floor of the tip shelf, and each of the exit ports having a trenched section extending from the shelf floor along a radial face of the shelf wall to the tip.