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US 2014/0178202 A1Published application
Turbine engine impeller
AssigneeSnecma
InventorsLuc Henri Chatenet, John Le Quellec
Life of this patent
Estimating the term…
Abstract
A turbine engine rotor wheel including a disk including at least one slot formed in its outer periphery for mounting roots of blades, a presser being mounted between each blade root and a bottom of the slot. The presser is bistable in position and is capable of occupying a first stable position for assembly and disassembly in which it does not exert a force on the blade root, and a second stable position in which it exerts a radial force on the blade root to hold the blade stationary and to stabilize the blade in a final position.
Claims12
1-11. (canceled)
A turbine engine rotor wheel comprising:
- a disk including at least one slot formed in its outer periphery for mounting roots of blades;
- a presser mounted between each blade root and a bottom of the slot, the presser being bistable in position, being capable of occupying a first stable position for assembly and disassembly in which the presser does not exert a force on the blade root, and a second stable position in which the presser exerts a radial force on the blade root to hold the blade stationary and to stabilize the blade in a final position;
- wherein a shape and a weight of the presser are determined so that passage from the first stable position to the second stable position is performed by centrifuging.
Dependencies are inferred from the claim text.