Integral segmented CMC shroud hanger and retainer system
A shroud hanger with integral retainer assembly comprises a ceramic matrix composite shroud hanger a first wall and a second wall, the hanger having a support wall extending between the first and second walls, the support wall having a shoulder near circumferential ends, a retainer depending from the support wall having a first lower leg and a second lower leg extending in the circumferential direction, a first shroud supported by the first lower leg and a second shroud supported by the second lower leg.
1. An apparatus for supporting turbine shroud segments, comprising:
a ceramic matrix composite shroud hanger including: a first wall, a second wall, and a support wall extending between said first wall and said second wall, said support wall including a first shoulder near a first circumferential end of the shroud hanger and a second shoulder near a second circumferential end of the shroud hanger;
a ceramic matrix composite retainer depending from said support wall and comprising a first leg and a second leg, wherein the first leg extends toward the first circumferential end and the second leg extends toward the second circumferential end;
a first shroud segment including a radially outer wall having an under surface and an opposed upper surface, wherein said first leg engages said under surface of said radially outer wall of said first shroud segment and said first shoulder engages said upper surface of said radially outer wall of said first shroud segment; and
a second shroud segment including a radially outer wall having an under surface and opposed upper surface, wherein said second leg engages said under surface of said radially outer wall of said second shroud segment and said second shoulder engages said upper surface of said radially outer wall of said second shroud segment.
2. The apparatus of claim 1 , wherein circumferential ends of said shrouds are offset from said first and second circumferential ends of said shroud hanger.
3. The apparatus of claim 1 , wherein said retainer is substantially T-shaped.
4. The apparatus of claim 1 , wherein one of said first wall and said second wall is a forward wall and the other of said first wall and said second wall is an aft wall.
5. The apparatus of claim 1 , wherein said retainer further comprises a first depending member interconnecting said support wall and said first and second legs.
6. The apparatus of claim 5 , wherein said retainer further comprises a second depending member spaced from said first depending member.
7. The apparatus of claim 1 , wherein said support wall defines a first arm and a second arm extending circumferentially.
8. The apparatus of claim 7 , wherein said first leg and said second leg have a circumferential length less than a circumferential length of said first arm and said second arm.
9. The apparatus of claim 1 , wherein said legs are disposed into said shrouds at slash faces of said shrouds.
10. The apparatus of claim 1 , wherein each of said legs includes a pad which engages the respective under surface.