Flow attachment device for thrust vector control

Details Flow attachment device for thrust vector control Flow attachment device for thrust vector control

1976-02-13

1977-04-19

Love, John J.

Fluid sprinkling, spraying, and diffusing

Reaction motor discharge nozzle

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

B63H 1110

Patent

active

040183840

ABSTRACT:
An exhaust nozzle has two frames each with flow attachment surfaces, mounted on its exit end in diametrically opposed relationship. Side plates are mounted on the sides of the attachment surfaces in such a manner that the plates project inwardly toward the axis of the nozzle. The attachment surfaces and their respective side plates define flow channels which receive only annular sectors of the exhaust stream emanating from the nozzle. Each flow channel is of sufficient radial depth and curvature to permit ambient pressure at a selected location on the attachment surface to detach the exhaust stream. A plurality of passages are provided in each frame for communicating ambient pressure to the respective attachment surfaces. A solenoid operated valve on each frame controls communication between the respective passages and the ambient atmosphere. A pulse ratio modulator circuit, responsive to a command signal, applies pulses to the valves such that an annular sector of flow may be successively attached and detached to generate a lateral force having a duration corresponding to the magnitude of the command signal.

REFERENCES:
patent: 2702986 (1955-03-01), Kadosch et al.
patent: 3463417 (1969-08-01), Cruz
patent: 3606165 (1969-11-01), Dunaway
patent: 3697020 (1972-10-01), Thompson
patent: 3806063 (1974-04-01), Fitzgerald

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