Collapsible support structure for a gas turbine engine
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United States of America Patent
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Jan 9, 2018
Issued Date -
N/A
app pub date -
Oct 13, 2015
filing date -
Nov 7, 2014
priority date (Note) -
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Abstract
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.
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