Accession Number : ADD013093

Title :   Axial Acoustic Wave Attenuator for Ramjets.

Descriptive Note : Patent, Filed 29 Jul 83, patented 22 Jan 85,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Mathes,H B

Report Date : 22 Jan 1985

Pagination or Media Count : 7

Abstract : Apparatus for attenuating upstream gas motion induced by axial acoustic waves in a ramjet engine includes a series of hollow truncated conical attenuators acting to both modify and enhance fuel-oxidizer mixing and offering negligible resistance to downstream gas motion while offering substantial resistance to upstream gas motion within the engine. (Author)

Descriptors :   *PATENTS, *ATTENUATORS, *ACOUSTIC WAVES, *RAMJET ENGINES, GASES, MOTION, ACOUSTIC ATTENUATION, RESISTANCE

Subject Categories : Jet and Gas Turbine Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE