Accession Number : ADD014810

Title :   Apparatus and Method for Designing a Specially Ported Torpedo Launching System to Damp a Seawater Piston.

Descriptive Note : Patent Application, Filed 25 Jul 90,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Rosner, George ; Hubbell, Richard F

Report Date : 25 Jul 1990

Pagination or Media Count : 17

Abstract : This patent application is for a low-noise, low-pressure torpedo launching system having specially designed ports connecting a water cylinder to an impulse tank and is a method for designing such ports. A specifically designed C-shaped water cylinder discharge ports is used to provide a continuous and minimized pressure gradient as the ports are closed by the water piston. The resulting controlled deceleration of the water piston reduces operational noise, reduces mechanical stresses and eliminates the need for auxiliary dashpot components.

Descriptors :   AUXILIARY, CONTROL, CYLINDRICAL BODIES, DASHPOTS, DECELERATION, LOW PRESSURE, MECHANICAL PROPERTIES, NOISE, PATENT APPLICATIONS, PISTONS, PRESSURE GRADIENTS, PULSES, SEA WATER, STRESSES, TORPEDO LAUNCHERS, WATER

Subject Categories : Torpedoes

Distribution Statement : APPROVED FOR PUBLIC RELEASE