Tension decoupler device
AssigneeSnecma Moteurs
InventorsGael Bouchy, Pascal Vasseur
Life of this patent
Estimating the term…
Abstract
The tension decoupler devices comprises: first fusible rupture members (54), arranged to be parallel to each other, second structural rupture members (72), arranged to be parallel to each other and parallel to the first rupture members (54). The fusible rupture members (54) and the structural rupture members (72) are designed to break only when the load applied to the decoupler device reaches or exceeds a predetermined load value, and the structural rupture members (72) are designed to have sufficient fatigue strength as long as said applied load does not reach said predetermined load value. Application to a fan shaft bearing support in a turbojet.
Claims18
Tension decoupler device connecting two parts (14, 15) of a structure and fitted with rupture members (54, 72), the rupture of which cause decoupling of said parts (14, 15) when they break, characterized in that it comprises:
- a first set of first rupture members called fusible rupture members (54), arranged to be parallel to each other,
- a second set of second rupture members called structural rupture members (72), arranged to be parallel to each other and parallel to the first fusible rupture members (54),
- and in that said first fusible rupture members (54) and said second structural rupture members (72) are designed to break only when the load applied to the decoupler device reaches a given predetermined load value, and said second structural rupture members (72) are designed to have sufficient fatigue strength as long as said applied load does not reach said predetermined load value.
Dependencies are inferred from the claim text.