Fluid sprinkling – spraying – and diffusing – Reaction motor discharge nozzle – With means controlling amount – shape or direction of...
Patent
1977-11-25
1980-04-08
Reeves, Robert B.
Fluid sprinkling, spraying, and diffusing
Reaction motor discharge nozzle
With means controlling amount, shape or direction of...
60228, B64C 1506
Patent
active
041968565
ABSTRACT:
A variable geometry gas turbine engine exhaust nozzle is disclosed wherein the inner surface of the nozzle housing and the surface of the tail plug are defined by two sets of hinged together axially extending elements and the nozzle housing outer surface is defined by a single set of axially extending elements. Viewed in the transverse direction, the elements are of an annular geometry with adjacent elements circumferentially overlapping one another to define an annular exhaust duct. A set of hydraulically operated drive units, connected for radial displacement of the juncture between the two sets of elements that define the nozzle housing inner surface, provides rapid control over the nozzle throat diameter. A set of gear driven drive units controls axial displacement of the forward end of the elements defining the nozzle housing outer surface and drives hinged together annular extending support beams into abutment with the overlapping regions of the nozzle housing inner wall. The geometry of the tail plug, which is formed by two hinged together sets of axially extending elements, is controlled by a set of screw driven drive units.
REFERENCES:
patent: 2780056 (1957-02-01), Colley
patent: 2972226 (1961-02-01), Geary
patent: 2989845 (1961-06-01), Howald
patent: 3352494 (1967-11-01), Colville et al.
Kashnikow Andres
Reeves Robert B.
The Boeing Company
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