US 12,241,387 B1
Tilted CMC vane arc segment
Howard J. Liles, Newington, CT (US); Cheng Gao, South Glastonbury, CT (US); and Bryan P. Dube, Chepachet, RI (US)
Assigned to RTX CORPORATION, Farmington, CT (US)
Filed by RTX CORPORATION, Farmington, CT (US)
Filed on Aug. 24, 2023, as Appl. No. 18/455,293.
Int. Cl. F01D 5/28 (2006.01)
CPC F01D 5/282 (2013.01) [F01D 5/284 (2013.01); F05D 2240/12 (2013.01); F05D 2300/6033 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An article comprising:
a ceramic matrix composite (CMC) vane arc segment for disposal about an engine central axis, the CMC vane arc segment including first and second platforms and an airfoil section extending therebetween, the airfoil section defining a radial stacking axis that is oblique to a Z-axis that is perpendicular to the engine central axis such that the airfoil section has a circumferential lean in which the radial stacking axis forms a circumferential non-zero angle with the Z-axis, the radial stacking axis is a linear axis that passes through all centroids of all axial cross-sections of the airfoil section and that intersects the engine central axis; and
outer and inner radial supports between which the CMC vane arc segment is mounted so as to form a ring-strut-ring configuration, the first platform is a radially outer platform, the second platform is a radially inner platform, and wherein the CMC vane arc segment defines an aerodynamic load vector that is transmitted through a leading end corner of the inner platform and a circumferentially opposed trailing end corner of the outer platform.