Accession Number : ADD005434

Title :   Infrared Suppressor Device.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Mouritsen,Thorvald E ; Simpkin,William E

Report Date : 12 Sep 1978

Pagination or Media Count : 8

Abstract : This patent application describes an air-cooled contoured plug fitted within the engine tailpipe to physically block any direct view to the turbine section. A vortex cavity is provided around the plug just aft of the plug maximum diameter in order to reduce the length of the cone-shaped plug. The trapped vortex reenergizes the boundary layer built up along the cone surface and allows the flow of hot gases to turn the corner without separating. (Author)

Descriptors :   *Patent applications, *Infrared suppressors, *Tail assemblies, *Jet engine exhaust, Air cooled, Infrared countermeasures

Subject Categories : Optical Countermeasures
      Jet and Gas Turbine Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE