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:
May. 27, 2003
Filed:
Jul. 05, 2001
Applicant:
Inventor:
Melvin J. Bulman, Folsom, CA (US);
Assignee:
Aerojet-General Corporation, Sacramento, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02K 1/30 ; F02K 3/10 ; F02K 9/97 ;
U.S. Cl.
CPC ...
F02K 1/30 ; F02K 3/10 ; F02K 9/97 ;
Abstract
Augmentation of the thrust achieved by a supersonic nozzle of continuous curvature is achieved by causing secondary combustion to occur in an annular region of the interior of the divergent section of the nozzle. The secondary combustion forms a secondary combustion gas that complements the primary combustion gas passing through the nozzle and maintains a wall pressure that is equal to or greater than ambient pressure at low altitudes, eliminating the negative component of the thrust in an overexpanded nozzle at takeoff.