Accession Number : ADD005609

Title :   Two-Position Nozzle.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Ebeling,Charles E , Jr

Report Date : 29 Aug 1978

Pagination or Media Count : 6

Abstract : A dual-position nozzle having a stationary outer support structure or throat holder and an inner sustain throat assembly which translates during boost-sustain transition is provided. The throat holder includes inner and outer metal support rings joined by three tubular struts. During boost operation, the sustain nozzle assembly is mechanically joined to the throat holder by a split beveled retaining ring which is engaged in a groove in the inner metal ring of the throat holder. Upon command, expanding gases act to withdraw a pin from a gap in the retaining ring permitting the sustain nozzle to translate under viscous and pressure forces to the sustain phase position. (Author)

Descriptors :   *Patents, *Rocket nozzles, Movable nozzles, Positioning devices(Machinery), Dual thrust rocket engines, Sustainer engines, Nozzle throats

Subject Categories : Rocket Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE