US 10,890,074 B2
Coriolis optimized u-channel with platform core
Timothy J. Jennings, West Hartford, CT (US); and Carey Clum, East Hartford, CT (US)
Assigned to RAYTHEON TECHNOLOGIES CORPORATION, Farmington, CT (US)
Filed by United Technologies Corporation, Farmington, CT (US)
Filed on May 1, 2018, as Appl. No. 15/968,043.
Prior Publication US 2019/0338647 A1, Nov. 7, 2019
Int. Cl. F01D 5/18 (2006.01)
CPC F01D 5/187 (2013.01) [F05D 2220/32 (2013.01); F05D 2240/81 (2013.01); F05D 2260/202 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A gas turbine engine component comprising:
an airfoil having pressure and suction side walls extending in a chord-wise direction between a leading edge and a trailing edge, the pressure and suction side walls extending in a radial direction between a platform and a tip to provide an exterior airfoil surface;
a cooling passage arranged between the pressure and suction side walls having a first passage along the pressure side wall and a second passage along the suction side wall; the first passage configured to receive cooling air from a cooling air source, and the second passage configured to receive cooling air from the first passage near the tip; and
a platform passage arranged in the platform, the platform passage is configured to purge all of the cooling air from the second passage aft of the trailing edge.