US 9,810,086 B2
Asymmetric radial spline seal for a gas turbine engine
Victor Hugo Silva Correia, Milton Mills, NH (US); Christopher Michael Ceglio, Salem, MA (US); and David Scott Stapleton, Boston, MA (US)
Assigned to General Electric Company, Schenectady, NY (US)
Filed by Victor Hugo Silva Correia, Milton Mills, NH (US); Christopher Michael Ceglio, Salem, MA (US); and David Scott Stapleton, Boston, MA (US)
Filed on Apr. 11, 2012, as Appl. No. 13/443,947.
Claims priority of provisional application 61/556,270, filed on Nov. 6, 2011.
Prior Publication US 2013/0115065 A1, May 9, 2013
Int. Cl. F01D 9/04 (2006.01); F01D 11/00 (2006.01)
CPC F01D 11/005 (2013.01) [F01D 9/04 (2013.01); F05D 2240/11 (2013.01); F05D 2240/57 (2013.01); F05D 2240/59 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A shroud apparatus for a gas turbine engine, comprising:
an annular shroud segment having an arcuate bottom wall defining an arcuate inner flowpath surface, spaced-apart forward and aft walls extending radially outward from the bottom wall, and spaced-apart side walls extending radially outward from the bottom wall and between the forward and aft walls, each side wall defining an end face;
wherein each end face includes:
an axial slot extending in a generally axial direction along the end face;
a first radial slot extending in a generally radial direction along the end face, and intersecting the axial slot;
an axial spline seal received in the axial slot;
a first radial spline seal having an L-shape with radial and axial legs, the radial leg being two to three times longer than the axial leg, wherein the radial leg is received in the first radial slot, and the axial leg is received in the axial slot and lies against the axial spline seal;
a second radial slot extending in a generally radial direction along the end face, the second radial slot intersecting the axial slot; and
a second radial spline seal having an L-shape with radial and axial les, the radial leg being two to three times longer than the axial leg, wherein the radial leg is received in the second radial slot, and the axial leg is received in the axial slot and lies against the axial spline seal.