US 11,982,231 B2
Hourglass airfoil cooling configuration
Brandon W. Spangler, Vernon, CT (US)
Assigned to RTX CORPORATION, Farmington, CT (US)
Filed by RAYTHEON TECHNOLOGIES CORPORATION, Farmington, CT (US)
Filed on Mar. 7, 2023, as Appl. No. 18/179,479.
Application 18/179,479 is a division of application No. 17/392,573, filed on Aug. 3, 2021, granted, now 11,624,322.
Application 17/392,573 is a division of application No. 16/515,528, filed on Jul. 18, 2019, granted, now 11,111,857, issued on Sep. 7, 2021.
Prior Publication US 2023/0203991 A1, Jun. 29, 2023
Int. Cl. B22C 9/10 (2006.01); B22C 9/00 (2006.01); B22C 9/22 (2006.01); B22C 9/24 (2006.01); B22C 13/12 (2006.01); F01D 5/18 (2006.01); F01D 25/12 (2006.01); F02C 7/18 (2006.01)
CPC F02C 7/18 (2013.01) [B22C 9/00 (2013.01); B22C 9/10 (2013.01); B22C 9/103 (2013.01); B22C 9/106 (2013.01); B22C 9/22 (2013.01); B22C 9/24 (2013.01); B22C 13/12 (2013.01); F01D 5/187 (2013.01); F01D 25/12 (2013.01); F05D 2220/32 (2013.01); F05D 2260/204 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A core structure for a providing a cooling passage in a gas turbine engine component, comprising:
a core body having a first, second, and third cooling passage core, the first cooling passage core having first width in a chord-wise direction near a first wall, a second width in the chord-wise direction near a second wall, and a third width in the chord-wise direction between the first and second walls, the third width being smaller than the first and second widths to form an hourglass shape, the first cooling passage core arranged between the second and third cooling passage cores, and the second and third cooling passage cores having a kite shape, wherein a perimeter of the second and third cooling passage cores include an opposed pair of acute angles and an opposed pair of obtuse angles.