Accession Number : ADD001400

Title :   Bellmouth Vehicle Exhaust Port.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Sevik,Maurice M ; Smith,Fred E

Report Date : 10 Sep 1974

Pagination or Media Count : 4

Abstract : The patent relates to a unique exhaust nozzle for an underwater vehicle which minimizes the generation and radiation of acoustic energy over a wide band of frequencies. The improved exhaust nozzle structure comprises an external annular lip that extends outwardly at a right angle to the longitudinal axis of the vehicle and forms a cavity downstream from the vehicle into which combustion gases of the vehicle are noiselessly discharged.

Descriptors :   *Underwater vehicles, *Exhaust nozzles, *Patents, Exhaust gases, Noise reduction, Cavities

Subject Categories : Marine Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE