Actuating mechanism for gas turbine engine nozzles

Details Actuating mechanism for gas turbine engine nozzles Actuating mechanism for gas turbine engine nozzles

1975-09-02

1977-01-18

Raduazo, Henry F.

Rotary kinetic fluid motors or pumps

Selectively adjustable vane or working fluid control means

Runner, shaft, or separate motor operated

415160, F01D 1712

Patent

active

040036758

ABSTRACT:
A mechanism for varying the position of a plurality of nozzle vanes in a gas turbine engine. The mechanism includes a single double-acting hydraulic actuating jack disposed between two bell cranks for simultaneously applying force to a ring gear at two diametrically opposed connection points. The single actuating jack applies equal and opposite forces to the diametrically opposed connection points on the ring gear and reduces distortion producing stresses therein. The ring gear simultaneously engages a plurality of individual gear segments rotatable with each individual nozzle vane in the engine. Movement of the single actuator jack causes balanced rotation of the ring gear and simultaneous rotation of the nozzle vanes.

REFERENCES:
patent: 1499475 (1924-01-01), Prince
patent: 2037395 (1936-04-01), Seelig
patent: 3013771 (1961-12-01), Henny
patent: 3041039 (1962-06-01), Ambroz
patent: 3318574 (1967-05-01), Tyler
patent: 3352537 (1967-11-01), Petrie
patent: 3574479 (1971-04-01), Barnard
patent: 3632224 (1972-01-01), Wright et al.
patent: 3904309 (1975-09-01), Keetley

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