Stepped nozzle

Details Stepped nozzle Stepped nozzle

1996-05-28

1998-07-14

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Reaction motor discharge nozzle

With erodible, frangible or fusible nozzle part

B63H 1110

Patent

active

057791511

ABSTRACT:
An insert which allows a supersonic nozzle of a rocket propulsion system to operate at two or more different nozzle area ratios. This provides an improved vehicle flight performance or increased payload. The insert has significant advantages over existing devices for increasing nozzle area ratios. The insert is temporarily fastened by a simple retaining mechanism to the aft end of the diverging segment of the nozzle and provides for a multi-step variation of nozzle area ratio. When mounted in place, the insert provides the nozzle with a low nozzle area ratio. During flight, the retaining mechanism is released and the insert ejected thereby providing a high nozzle area ratio in the diverging nozzle segment.

REFERENCES:
patent: 3237402 (1966-03-01), Steverding
patent: 3855789 (1974-12-01), Platzek
patent: 4022129 (1977-05-01), Day et al.
patent: 4109867 (1978-08-01), Ebeling, Jr.
patent: 4434614 (1984-03-01), Gill et al.
patent: 5490629 (1996-02-01), Bonniot et al.

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