Adjustable two dimensional nozzle for aircraft jet engines

Details Adjustable two dimensional nozzle for aircraft jet engines Adjustable two dimensional nozzle for aircraft jet engines

1987-12-16

1988-10-18

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Reaction motor discharge nozzle

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

23926535, 60230, 244110B, F02K 112, B63H 1110

Patent

active

047781092

ABSTRACT:
An adjustable two-dimensional nozzle is disclosed in which simplified control means are located away from the flow of gasses through the nozzle. The nozzle includes a movable frame located outside of fixed sidewalls and has pivotally attached thereto a pair of upstream or converging nozzle flaps. Upstream edges of the upstream flaps are attached to the movable frame such that the flaps pivot about axes extending substantially perpendicular to the longitudinal axis of the nozzle. Downstream or diverging flaps are attached to the downstream edges of the upstream flaps such that these flaps also pivot about axes extending substantially perpendicular to the longitudinal axis of the nozzle. A cam member extends between each of the movable frames and each downstream flap to control the angular variations of the flaps during movement of the frame. The flap arrangements are symmetrically arranged with respect to a plane passing through the longitudinal axis of the nozzle, such that translational movement of the frames will alter the cross-section of the nozzle in a symmetrical manner with respect to the plane. If the frame is rotated about its pivot attachment, the nozzle flaps will be asymmetrically adjusted and may be utilized to vector the thrust of the gasses emanating from the nozzle.

REFERENCES:
patent: 3098352 (1963-07-01), Taub et al.
patent: 4241876 (1986-12-01), Pederson
patent: 4245787 (1981-01-01), Freid
patent: 4310121 (1982-01-01), Basinski, Jr.
patent: 4361281 (1982-11-01), Nash
patent: 4605169 (1986-08-01), Mayers
patent: 4690329 (1987-09-01), Maddon

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