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