The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 09, 1998
Filed:
May. 11, 1995
Garry W Klees, Mercer Island, WA (US);
The Boeing Company, Seattle, WA (US);
Abstract
A supersonic engine having an ejector/suppressor. The engine has a rear discharge portion with an ambient air inlet section, a mixing section, and a rear discharge section. For noise suppression, arms mounted in the air inlet section are moved to open air inlet passageways causing air to flow there through. Primary exhaust from the engine flows through primary passageways interspersed with the ambient air passageways. The primary supersonic air from the primary passageways mixes with the ambient air in the mixing section and flows out the final nozzle which is in the open position. For cruise mode, the arms are moved to close the air inlet passageways, and the final nozzle is in a position to cause the flow upstream thereof to be a subsonic, and the flow aft of the final nozzle to be supersonic. The arms can be placed in an intermediate position for thrust reversal, with the final nozzle being moved a blocking position.