Partially segmented supporting and sealing structure for a guide

Details Partially segmented supporting and sealing structure for a guide Partially segmented supporting and sealing structure for a guide

1982-07-07

1984-09-11

Yuen, Henry C.

Rotary kinetic fluid motors or pumps

Including thermal expansion joint

Radially sliding

415134, 415170R, 415173R, F01D 502

Patent

active

044707541

ABSTRACT:
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 support 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 between 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 connection. The segmented nozzle construction effectively reduces stress levels resulting from differential thermal excursions of the components of the nozzle under transient and steady state operation of the engine, while also minimizing leakage through the flexible coupling.

REFERENCES:
patent: 2609176 (1952-09-01), Purvis
patent: 2651496 (1953-09-01), Buckland
patent: 2772069 (1956-11-01), Hocketert
patent: 3552753 (1971-01-01), Mierley et al.
patent: 3829233 (1974-08-01), Scalzo et al.
patent: 3947145 (1976-03-01), Michel et al.
patent: 4113406 (1978-09-01), Lee et al.

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