Accession Number : AD0163968

Title :   Pressure Differential Limiter.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Ferris,De Lacy F.

Report Date : 06 FEB 1973

Pagination or Media Count : 4

Abstract : The patent relates to a normally open pressure differential actuated oxidizer flow control valve which is located in a liquid propellant system using a storage tank which employs a pressurized bladder to expel the oxident. This valve has an actuating piston responding to the increased expulsion gas-oxident pressure differential which occurs near completion of a missile firing. It is located in the oxidizer line and responds to such differential pressure increase to sever a shear disc and initially admit expulsion gas pressure to one side of the valve actuating piston. The other side is exposed to oxidizer pressure and, upon creation of sufficient pressure differential across the piston the valve closes to stop oxidizer flow.

Descriptors :   (*CHECK VALVES, *PATENTS), (*LIQUID ROCKET PROPELLANTS, *PROPELLANT CONTROL), LIQUID PROPELLANT ROCKET ENGINES, PROPELLANT TANKS, PRESSURIZATION, DIAPHRAGMS(MECHANICS)

Subject Categories : Pumps, Filters, Pipes, Tubing, Fittings & Vlvs

Distribution Statement : APPROVED FOR PUBLIC RELEASE