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US 3,940,067 AGranted
Axisymmetrical annular plug nozzle
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorsCharles C. Cherry, Lewis C. King
Life of this patent
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Abstract
An annular plug nozzle for a rocket propulsion unit, designed for the shost possible length, and contoured wall structure capable of withstanding exposure to motor chamber and exhaust environment for extended operating time.
Claims9
A composite annular nozzle for rocket motors comprising:
- a steel shell forming a can-like body;
- tripod arms secured at their free extremities to the shell;
- a steel pin secured to the center of the tripod arms and extending aft substantially concentric with the shell body;
- contoured inner walls formed of sections of materials other than steel secured to the inner wall of the shell body, said inner wall forming the outer contoured surface of the nozzle;
- sections formed of a material other than steel, which when assembled on the center pin form a substantially cone shaped centerbody, the contoured outer shape of the centerbody forming the inner walls of the nozzle;
- wherein the aft insert of the outer and inner contoured walls is formed of silica phenolic molding compound;
- whereby an annular throat section is formed at the portion of narrowest opening between the outer wall and the inner wall of the nozzle.
4 more elements
Dependencies are inferred from the claim text.