Mechanism for operating a cascade of variable pitch vanes

Details Mechanism for operating a cascade of variable pitch vanes Mechanism for operating a cascade of variable pitch vanes

1994-06-06

1996-01-23

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Reaction motor discharge nozzle

With means controlling amount, shape or direction of...

244 125, B64C 1500

Patent

active

054859581

ABSTRACT:
In a V/STOL aircraft having a vectorable exhaust device in the form of a cascade of variable pitch nozzle vanes, an operating mechanism for effecting coordinated pivotal movement of the vanes is provided to vector engine thrust. The operating mechanism includes a plurality of elongate pushrods arranged in end to end abutment with a corresponding plurality of vane operating levers interspaced between the pushrods. The vanes are rotated about spanwise axes by translation of the pushrods in a direction normal to the vane axes. For a given actuating input the vanes rotate by progressively different amounts so that the combined nozzle throat area remains substantially unchanged throughout the nozzle vectoring range.

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patent: 5390877 (1995-02-01), Nightingale

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