F - Mech Eng,Light,Heat,Weapons – 04 – D
Patent
F - Mech Eng,Light,Heat,Weapons
04
D
170/80
F04D 29/38 (2006.01) F01D 9/04 (2006.01)
Patent
CA 1135195
-12- ABSTRACT OF THE DISCLOSURE A nozzle of a gas turbine engine includes an array of radially extending guide vanes fixedly supported at their tip portions to an outer shroud, while the root portion of each vane is connected to a segment of a radially inner, segmented shroud. Each segment is, in turn, connected via a slip fit inter-connection to a radially inner ring sup- port structure of generally L-shaped configuration. A spring extends between the segment and the base of the L- shaped ring support for forming a flexible coupling be- tween the inner ring and the segment, while the remaining portion of the ring support structure defines a pressure dam to reduce leakage through the flexible coupling connec- tion. The segmented nozzle construction effectively re- duces stress levels resulting from differential thermal excursions of the components of the nozzle under transient and steady state operation of the engine, while also mini- mizing leakage through the flexible coupling.
373476
Berkner Horst D.
Manente Joseph C.
Avco Corporation
Ridout & Maybee Llp
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