Gas turbine engine control system

Details Gas turbine engine control system Gas turbine engine control system

1987-08-21

1989-07-04

Garrett, Robert E.

Rotary kinetic fluid motors or pumps

With diversely oriented inlet or additional inlet for...

4151732, 415127, 415113, F04D 3100

Patent

active

048446882

ABSTRACT:
The high pressure turbine of a gas turbine engine is provided with an annular array of aerofoil rotor blades which are surrounded by a shroud. The shroud is mounted on a tubular diaphragm which is deflected by pressure modulation to vary the effective diameter of said shroud means. An L-shaped cross-section flange provided on the turbine casing cooperates with a plurality of L-shaped cross-section hooks on the diaphragm to limit radially inward movement of the shroud and thereby prevent contact between the aerofoil blade tips and the shroud means.

REFERENCES:
patent: 4019320 (1977-04-01), Ridinger, Jr. et al.
patent: 4023919 (1977-05-01), Patterson
patent: 4363599 (1982-12-01), Cline et al.
patent: 4472108 (1984-09-01), Pask
patent: 4683716 (1987-08-01), Wright et al.

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