Rocket nozzle bearing seal

Details Rocket nozzle bearing seal Rocket nozzle bearing seal

1977-06-06

1978-08-22

Love, John J.

Fluid sprinkling, spraying, and diffusing

Reaction motor discharge nozzle

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

B64C 1504

Patent

active

041083814

ABSTRACT:
The invention is a special, low-friction, compliant bearing seal for use between the stationary and movable members of a thrust-vectoring, rocket nozzle. The movable member of such nozzles typically contains the throat and expansion cone for acceleration of the propulsive gases. It is attached to the back end of the rocket by the stationary member. A torsion ring, seated in an annular groove in the stationary member of the nozzle holds an annular, lubricous pad against a spherical surface of the movable member. An elastomeric pad bonded between the adjacent surfaces of the torsion ring and the groove, both of which are arcuate in cross section, permits twisting motion of the torsion ring; so that the lubricous pad maintains its seal and bearing function relative to the movable member, despite temporary deformations of the nozzle members during operation of the rocket.

REFERENCES:
patent: 3361362 (1968-01-01), Edwards
patent: 3698192 (1972-10-01), LeFebure, Jr.
patent: 3912172 (1975-10-01), Bolner

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