F - Mech Eng,Light,Heat,Weapons – 23 – R
Patent
F - Mech Eng,Light,Heat,Weapons
23
R
60/164
F23R 3/18 (2006.01) F02K 3/10 (2006.01) F23R 3/00 (2006.01) F23R 3/06 (2006.01)
Patent
CA 1256708
GAS TURBINE ENGINE AUGMENTOR ABSTRACT OF THE DISCLOSURE A new and improved gas turbine engine augmentor including a liner having a film-coolable first portion joined to a convention-coolable second portion is disclosed. A cooling gas, such as fan bypass air, is channeled to the liner for the film cooling the first portion and providing a residual cooling film to the second portion. The second portion is also convention coolable by air passing over an outer surface thereof. In a particular embodiment of the invention, the augmentor liner also includes a screech portion disposed at an upstream end of the first portion and downstream of a flameholder. The screech portion includes a substantially imperforate outer wall and an inner wall spaced therefrom which define a manifold therebetween. The inner wall includes a plurality of apertures in flow communication with the combustion zone. The manifold and apertures are effective for suppressing screech while substantially preventing the leakage of cooling air therethrough.
497097
Lamando Chester J. Jr.
Vdoviak John W.
Company General Electric
Eckersley Raymond A.
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