US 12,000,306 B2
Vane arc segment with single-sided platforms
Michael G. McCaffrey, Windsor, CT (US)
Assigned to RTX CORPORATION, Farmington, CT (US)
Filed by RAYTHEON TECHNOLOGIES CORPORATION, Farmington, CT (US)
Filed on Jun. 3, 2022, as Appl. No. 17/831,933.
Prior Publication US 2023/0392506 A1, Dec. 7, 2023
Int. Cl. F01D 5/28 (2006.01); F01D 5/14 (2006.01); F01D 9/04 (2006.01); F04D 9/04 (2006.01)
CPC F01D 5/282 (2013.01) [F01D 5/141 (2013.01); F01D 5/147 (2013.01); F04D 9/041 (2013.01); F05D 2240/12 (2013.01); F05D 2240/80 (2013.01); F05D 2300/6033 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A vane arc segment comprising:
a ceramic matrix composite (CMC) fairing including an airfoil section defining suction and pressure side walls, leading and trailing ends, and inner and outer radial ends, a first single-sided platform at the outer radial end projecting in a first circumferential direction from the suction side wall, and
a second single-sided platform at the inner radial end projecting in a second, opposite circumferential direction from the pressure side wall, wherein the first single-sided platform being comprised of a fiber layer extending from the airfoil section at the first radial end and turning into the first single-sided platform, and
the second single-sided platform being comprised of the fiber layer extending from the airfoil section at the second radial end and turning into the second single-sided platform,
the first single-sided platform includes an edge portion that has a contour that is complementary in shape to the pressure side wall of the airfoil section, and aft of the edge portion the first single-sided platform includes a straight portion, the straight portion comprising circumferentially-facing surfaces on both suction and pressure side wall facing sides of the straight portion, aft of the airfoil section.