Nozzle for a turbomachine turbine
AssigneeSnecma
InventorsThierry Fachat, Patrick Joseph Marie Girard, Jean-Luc Soupizon
Life of this patent
Estimating the term…
Abstract
A turbine nozzle for a turbomachine, including inner and outer annular platforms connected together by vanes, the inner platform carrying annular elements of abradable material co-operating with annular wipers of a rotor of the turbomachine to form a labyrinth seal, these elements of abradable material being carried by annular sheet-metal sectors of substantially L-, S-, or C-shaped section that are fastened by brazing or welding at their outer peripheries to the inner platform and at their inner peripheries to the elements of abradable material.
Claims10
A turbine nozzle for a turbomachine, the nozzle comprising:
- two annular platforms, respectively an inner platform and an outer platform, interconnected by substantially radial vanes, the inner platform carrying annular elements of abradable material for co-operating with annular wipers of a rotor of the turbomachine to form a labyrinth type seal,
- wherein the annular elements of abradable material are carried by annular sheet-metal sectors of substantially L-, S-, or C-shaped section that are mounted radially inside the inner platform and each of which has an outer periphery having a first weld or brazed joint with the inner platform and an inner periphery having a second weld or brazed joint with an element of abradable material or to a piece of sheet metal fastened to an element of abradable material.
Dependencies are inferred from the claim text.