COLLAPSIBLE SUPPORT STRUCTURE FOR A GAS TURBINE ENGINE

Described is a shaft support system for a gas turbine engine comprising: a rotatable fan shaft; first and second support structures extending in parallel from the shaft to a load bearing structure to provide radial location of the shaft within an engine casing, wherein the first support and second s...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: CHILTON NICHOLAS EDWARD, BARKER MICHAEL JOHN
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Described is a shaft support system for a gas turbine engine comprising: a rotatable fan shaft; first and second support structures extending in parallel from the shaft to a load bearing structure to provide radial location of the shaft within an engine casing, wherein the first support and second support structures include first and second respective mechanical fusible joints; wherein the first fusible joint is a two-stage fuse which partially fails within a first predetermined load range, the second fusible joint fails within a second predetermined load range which is different to the first load range, and the first fusible joint fully fails only when the second fusible joint has failed.