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US 8,136,999 B2Granted
Turbomachine shaft guidance
AssigneeSnecma
InventorsClaude Marcel Mons, Laurent Raberin, Jean-Marc Rongvaux, Stephane Rousselin
Life of this patent
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Abstract
A support for a bearing that guides a shaft in a turbomachine is disclosed. The support includes an annular part made of a shape memory material which retains an initial shape when the load applied to it remains below a threshold value and which deforms, absorbing energy when the applied load becomes at least equal to the threshold value. The annular part is capable of reverting at least approximately to its initial shape when the applied load drops back below the threshold value.
Claims9
A support for a bearing that guides a shaft in a turbomachine, the support comprising:
- an annular part made of a shape memory material which retains an initial shape when the load applied to it remains below a threshold value and which deforms, absorbing energy when the applied load becomes at least equal to the threshold value, this annular part being capable of reverting at least approximately to its initial shape when the applied load drops back below the threshold value;
- and
- controlled means of heating the shape memory annular part to cause this annular part to revert to its initial shape when the applied load is below the threshold value.
Dependencies are inferred from the claim text.