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. 30, 1989
Filed:
Dec. 17, 1984
John W Vdoviak, Marblehead, MA (US);
Chester J Lamando, Jr, Nahant, MA (US);
General Electric Company, Lynn, MA (US);
Abstract
A new and improved gas turbine engine augmentor including a liner having a film-coolable first portion joined to a convection-coolable second portion is disclosed. A cooling gas, such as fan bypass air, is channeled to the liner for film cooling the first portion and providing a residual cooling film to the second portion. The second portion is also convection 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.