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

Claim 19:
20. An airfoil for a gas turbine engine comprising:
a platform section;
an airfoil section extending in a spanwise direction from the platform section to a tip portion establishing a tip, the airfoil section having an external wall defining pressure and suction sides extending in a chordwise direction between a leading edge and a trailing edge, and the pressure and suction sides spaced apart in a thickness direction between the leading edge and the trailing edge;
wherein the tip portion includes a tip pocket and a tip shelf extending inwardly from the tip, the tip pocket and tip shelf on opposite sides of a shelf wall, and the shelf wall has a serpentine profile;
wherein the tip pocket extends in the spanwise direction from a pocket floor to the tip; and
wherein the tip portion extends in the thickness direction between the pressure and suction sides to establish a width, the width measured at an innermost span position of the pocket floor relative to the spanwise direction, the airfoil section extends in the spanwise direction from the platform section to the tip to establish a height, and a ratio of the width to the height is equal to or greater than 0.1.