Exhaust flaps

Details Exhaust flaps Exhaust flaps

1989-07-03

1991-03-19

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Reaction motor discharge nozzle

With means controlling amount, shape or direction of...

239DIG19, B64C 938

Patent

active

050003860

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.

REFERENCES:
patent: 3889882 (1975-06-01), Hull, Jr. et al.
patent: 4541567 (1985-09-01), Jourdain et al.
patent: 4637550 (1987-01-01), Nash
G.E. Internal Photograph No. 1--Prior to Jun., 1988.
G.E. Internal Photograph No. 2--Prior to Jun. 1988.

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