Configuration for axial retention of blades in a disc
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United States of America Patent
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Jul 22, 2003
Issued Date -
N/A
app pub date -
Jan 2, 2001
filing date -
Jan 6, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
This axial mounting of the bottoms (5) of fan blades provides two levels of flexibility, and features rather low stiffness after using up a predetermined clearance (35) between two stop parts (32, 34), which then imposes a significant increase in stiffness; however significant energy was able to be absorbed through the elastic deformation of certain parts (7, 30) located between the blade and the disc (2), which enables the blade to withstand rather significant momentary forces, for example if a neighboring blade breaks and strikes it.
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