초록 ▼

A turbo fan gas turbine engine is disclosed which includes a central engine and a shroud-enclosed fan, the shroud being supported by a plurality of structural struts extending from the central engine to the shroud. A plurality of tubes internal to each strut are provided with fins to increase their

A turbo fan gas turbine engine is disclosed which includes a central engine and a shroud-enclosed fan, the shroud being supported by a plurality of structural struts extending from the central engine to the shroud. A plurality of tubes internal to each strut are provided with fins to increase their effective internal surface areas. Means are provided for connecting the tubes to a source of heated hydrocarbon liquid and for providing a return from the tubes to the source of hydrocarbon liquid, whereby the tubes provide cooling for the liquid. In a preferred embodiment of the invention, the tubes are surrounded by a highly conductive cement to provide support and improved heat transfer between the tubes and the struts.

대표청구항 ▼

In a turbo fan gas turbine engine including a central engine and a shroud enclosed fan, the combination comprising: a plurality of structural struts, each said strut extending from said central engine to said shroud; a plurality of tubes, internal to each said strut, each said tube being directly th

In a turbo fan gas turbine engine including a central engine and a shroud enclosed fan, the combination comprising: a plurality of structural struts, each said strut extending from said central engine to said shroud; a plurality of tubes, internal to each said strut, each said tube being directly thermally connected along its length to said strut by a solid high thermal conductivity pathway; means for connecting said tubes to a source of heated hydrocarbon liquid; and means for providing a return from said tubes to said source of hydrocarbon liquid whereby said tubes provide cooling for said liquid.