US 11,852,038 B2
Stator retention of gas turbine engine
Sarah J. Zecha, Concord, NH (US); and Brian Barainca, Kennebunk, ME (US)
Assigned to RTX CORPORATION, Farmington, CT (US)
Filed by RTX Corporation, Farmington, CT (US)
Filed on Nov. 7, 2019, as Appl. No. 16/677,090.
Prior Publication US 2021/0140375 A1, May 13, 2021
Int. Cl. F01D 9/04 (2006.01); F01D 9/02 (2006.01); F02C 9/22 (2006.01); F01D 25/24 (2006.01)
CPC F01D 9/042 (2013.01) [F01D 9/02 (2013.01); F01D 25/246 (2013.01); F02C 9/22 (2013.01); F05D 2230/64 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A stator vane assembly of a gas turbine engine, comprising:
a stator shroud having a plurality of shroud openings formed therein, the stator shroud defining a flowpath surface;
a plurality of stator vanes, one stator vane of the plurality of stator vanes installed in each shroud opening of the stator shroud;
a volume of potting material disposed in the plurality of shroud openings to retain the stator vanes thereat; and
two retainers disposed on each stator vane of the plurality of stator vanes at a back surface of the stator shroud opposite the flowpath surface to restrict circumferential movement of the plurality of stator vanes relative to the stator shroud;
wherein each retainer includes:
a first retainer leg extending in a vane spanwise direction through a shroud opening of the plurality of shroud openings at a first side of the stator vane;
a second retainer leg extending in the vane spanwise direction through the shroud opening at a second side of the stator vane opposite the first side; and a cap connecting the first retainer leg to the second retainer leg;
each of the first retainer leg and the second retainer leg including a rectangular leg extension extending circumferentially into a respective recess in the flowpath surface.