F - Mech Eng,Light,Heat,Weapons – 01 – D
Patent
F - Mech Eng,Light,Heat,Weapons
01
D
170/81
F01D 5/12 (2006.01) F01D 5/30 (2006.01) F01D 11/00 (2006.01)
Patent
CA 1207672
END SEAL FOR TURBINE BLADE BASE Abstract of Disclosure An end seal for root manifolds at the bases of air cooled turbine blades disposed in retention slots in a turbine wheel; the end seal including an annular groove in the upstream face of the wheel having an outboard cylindrical edge out- board of the root manifold, an inboard cylindrical edge inboard of the retention slots and a slot face parallel to the upstream face of the wheel; an im- perforate seal ring in the annular groove with a right circular flange adjacent the outboard edge, an annular foot engaging the groove slot face in- board of the retention slots, and a body portion defining an accordion fold in transverse cross section; and seal plate segments on the wheel over the groove. The seal plate segments capture the seal ring and bias the foot against the wheel while centrifugal forces are developed during wheel rota- tion to thrust the cylindrical flange against the groove outboard edge for outboard sealing and to urge the accordion fold to a folded condition for more tightly thrusting the foot against the groove slot face for inboard sealing.
455801
General Motors Corporation
Gowling Lafleur Henderson Llp
LandOfFree
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