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:
Mar. 28, 1978
Filed:
Jan. 05, 1977
Joel F Sutton, Juno Isles, FL (US);
Allen R Mattson, Palm Beach Gardens, FL (US);
Larry E Anders, Palm Springs, FL (US);
Abstract
An air-cooled, variable-throat, convergent-divergent nozzle for a turbojet engine. Active cooling constituent structures of the nozzle include: passages, for flow of cooling air, integral to, and within, convergent and divergent flaps and seal members; finned sections in nozzle components which are provided air from the passages; air exit slots on the convergent flaps; a hinged connection at each convergent flap-to-divergent flap (and divergent seal member) interconnection; staggered air outlet openings in each divergent flap; and, a tubular air feed system to provide cooling air from each divergent flap to an adjacent cooperating divergent seal member. Passive cooling is accomplished: by seal members overlapping adjacent side edges of convergent and divergent flaps, preventing leaking of cooling air and hot gas through the side edges; and, by a sealing hinged connection at each convergent flap-to-divergent flap (and divergent seal member) interconnection.