Accession Number:

ADD005434

Title:

Infrared Suppressor Device.

Descriptive Note:

Patent Application,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON D C

Report Date:

1978-09-12

Pagination or Media Count:

8.0

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

Subject Categories:

  • Optical Countermeasures
  • Jet and Gas Turbine Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE