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. 19, 1991
Filed:
Jul. 03, 1989
Michael A Lybarger, Cincinnati, OH (US);
General Electric Company, , NY (US);
Abstract
An exhaust flap for use in the exhaust section of an aircraft gas turbine engine is built with increased service life and ease of replacement. The exhaust flap includes convergent nozzle flaps, divergent nozzle flaps, convergent seal flaps and divergent seal flaps. The exhaust flap comprises a frame assembly with means for mounting in the engine and effecting its movement. The frame assembly is particularly characterized in having an open frame with at least one rail having a receiving channel. A removable baseplate dimensioned to slide into the receiving channels and a retainer means for attachment to the frame assembly to securely hold the baseplate in the frame assembly are also provided. The retainer means is readily removed to permit replacement of the baseplate while the exhaust flap is still mounted in the engine. The removable baseplate prolongs the service life of the exhaust flap due to a decrease in temperature induced stresses. Additionally, maintenance costs are substantially reduced by the ability to readily remove and replace a damaged baseplate.