A structural frame assembly for use in a gas turbine engine includes an annular inner hub, an annular outer casing and a plurality of circumferentially-spaced and radially extending hollow struts connected to the inner hub and outer casing. Hot gases are extracted from the engine primary flowpath, using a scoop attached to each strut, and are directed through the struts to the inner hub interior for the purpose of reducing a bulk temperature differential between the outer casing and the inner hub and for providing a uniform temperature distribution withi...
A structural frame assembly for use in a gas turbine engine, said assembly comprising: a) an annular inner hub made of a material having a relatively high coefficient of thermal expansion; b) an annular outer casing concentric with said inner hub about a longitudinal axis of said engine; c) a plurality of radially extending hollow struts extending between and fixedly connected to said inner hub and said outer casing; and d) means for reducing a bulk temperature differential between said inner hub and said outer casing and for providing a uniform temperat...
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