United Technologies Corporation

Henry Huizinga

Jorge I Farah

Michael Joseph Murphy

Jeffrey M Simpson

Andrew D Burdick

Karl D Blume

Jeffrey R Lavin

Gregory E Chetta

David W Leung

Duncan C Meyers

Luis Coreano

Dennis L Mackey

Amy U Serwinowski

Charlie Quackenbush

Frank Shurick

Robert Rozelle

Jonathan Schmid

J Michael Murphy

An example exhaust duct assembly includes a front liner, an intermediate liner and a rear liner. Each of the front, intermediate and rear liners include an inner liner exposed to combustion gases and an outer liner spaced radially apart from the inner liner. An air passage defined between the inner liner and the outer liner provides cooling air utilized for insulating an inner surface of the exhaust duct assembly. A closeout member is provided between the inner and outer liner and defines a portion of an air passage between the closeout member and the inner liner. Air flowing through the air passage is injected into a joint to provide cooling. The closeout member includes a horizontal leg that is bendable in a radial direction to accommodate relative movement between the inner liner and the outer liner.

Cooled dual wall liner closeout

A method for designing an engine case static structure of a gas turbine engine includes creating signals representing an engine case static structure knowledge base of information. The knowledge base has a plurality of design rule signals with respect to a corresponding plurality of parameter signals of associated elements of an engine case static structure, wherein the knowledge base comprises at least one data value signal for each of the plurality of design rule signals. A desired data value signal is entered for a selected one of the plurality of parameter signals of an associated element of the engine case static structure and compared to the corresponding data value signal in the knowledge base for the corresponding one of the plurality of design rule signals. Signals representative of a geometric representation of the selected parameter signal may be created.

Method and system for designing frames and cases

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Manchester, CT, United States of America

Henry Huizinga