Accession Number : ADD004935

Title :   Hot Wall Trunnion with Pressure Seal.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Burkes,William M

Report Date : 21 Mar 1978

Pagination or Media Count : 9

Abstract : A universal joint trunnion for use in controlling the operation of a nozzle on a rocket booster motor includes a critical c-ring 90 deg rotational in either direction which is isolated from the chamber pressure deflections of the swing disc and stub shaft assembly. A sealing aid compound is used in the outer chamber and inboard of a spherical bearing universal joint trapped by an elastomeric O-ring. The sealing aid compound in the inner chamber keeps the solid/liquid products of combustion from penetrating between and depositing themselves upon the mating surfaces of the spherical bearing. (Author)

Descriptors :   *Patent applications, *Universal joints, *Rocket nozzles, Booster rocket engines, Seals(Stoppers), Combustion chambers, Stub configuration, Shaft couplings

Subject Categories : Machinery and Tools
      Rocket Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE