Hourglass airfoil cooling configuration
AssigneeRaytheon Technologies Corporation
InventorBrandon W. Spangler
Life of this patent
Estimating the term…
Abstract
In one exemplary embodiment, an airfoil includes pressure and suction side walls that extend in a chord-wise direction between leading and trailing edges. The pressure and suction side walls also extend in a radial direction to provide an exterior airfoil surface. A cooling passage is arranged between the pressure and suction walls. The cooling passage has a first width in the chord-wise direction near the suction side wall. A second width is in the chord-wise direction near the pressure side wall. A third width is between the pressure and suction side walls. The third width is smaller than the first and second widths.
Claims20
An airfoil, comprising:
- pressure and suction side walls extending in a chord-wise direction between leading and trailing edges, the pressure and suction side walls also extending in a radial direction to provide an exterior airfoil surface;
- and
- a first cooling passage, a second cooling passage, and a third cooling passage arranged between the pressure and suction walls, the first and third cooling passages arranged on either side of the second cooling passage, the first and third cooling passages each having a first width in the chord-wise direction near the suction side wall, a second width in the chord-wise direction near the pressure side wall, and a third width between the pressure and suction side walls, the third width being smaller than the first and second widths, and wherein the second cooling passage has a kite shape.
A gas turbine engine, comprising:
- a combustor section arranged fluidly between compressor and turbine sections;
- an airfoil arranged in the turbine section, the airfoil having pressure and suction side walls extending in a chord-wise direction between leading and trailing edges, the pressure and suction side walls also extending in a radial direction to provide an exterior airfoil surface, and a first cooling passage, a second cooling passage, and a third cooling passage arranged between the pressure and suction walls, the first and third cooling passages arranged on either side of the second cooling passage, the first and third cooling passages each having a first width in the chord-wise direction near the suction side wall, a second width in the chord-wise direction near the pressure side wall, and a third width between the pressure and suction side walls, the third width being smaller than the first and second widths, and wherein the second cooling passage has a kite shape.
Dependencies are inferred from the claim text.