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US 7,857,581 B2Granted
Annular wiper for a sealing labyrinth, and its method of manufacture
AssigneeSnecma
InventorsClaude Marcel Mons, Joel Olivier Alfred Abel Vigneau
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Abstract
The invention provides a thermomechanical turbomachine part that is circularly symmetrical about a longitudinal axis, in particular a rotor, the part including at least one annular wiper for a sealing labyrinth. In characteristic manner, the wiper presents height in the radial direction that varies around its circumference by forming a plurality of projecting portions.
Claims14
A thermomechanical turbomachine part that is circularly symmetrical about a longitudinal axis, the part comprising:
- at least one annular wiper for a sealing labyrinth, wherein the wiper presents a varying height in a radial direction around its circumference, forming a plurality of projecting portions,
- wherein each of the projecting portions includes a U-shaped staple which is secured astride the wiper in a hollow recess formed in the wiper, said staple having a profile that is complementary to that of the wiper.
Dependencies are inferred from the claim text.