Accession Number : ADD015292

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

Descriptive Note : Patent, Filed 25 Jul 90, patented 31 Mar 92,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

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

Report Date : 31 Mar 1992

Pagination or Media Count : 9

Abstract : The invention is low-noise, low-pressure torpedo launching system having specially designed ports connecting a water cylinder to an impulse tank and to a method for designing such ports. The invention uses specially designed C-shaped water cylinder discharge ports 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 :   *PATENTS, *TORPEDO LAUNCHERS, *PORTS(OPENINGS), AUXILIARY, DASHPOTS, DECELERATION, GRADIENTS, INVENTIONS, LAUNCHING, LOW NOISE, LOW PRESSURE, NOISE, PISTONS, PRESSURE, PRESSURE GRADIENTS, STRESSES, TORPEDOES, WATER, SEA WATER, DAMPING

Subject Categories : Torpedoes

Distribution Statement : APPROVED FOR PUBLIC RELEASE