Gas turbine stator housing
AssigneeSnecma Moteurs
InventorsFrancois Crozet, Daniel Didier, Christian Ducrocq, Sebastien Imbourg, Laurent Palmisano, Jean-Marc Rongvaux, Andrë Verbrugge
Life of this patent
Estimating the term…
Abstract
A housing including an outer casing provided with bearer hooks for stator rings and sealing rings. The hooks are discontinuous angularly and joined to a casing by tenon and mortise assemblies. The hooks and the casing may therefore be made in different materials, the hook material having good resistance to heating and the other material lending itself better to machining and forming. Ventilation, clearance piloting and heat protection are facilitated.
Claims14
A stator housing comprising:
- a casing and bearer parts for rings on an inner surface of the casing, the bearer parts being separate from the casing, joined to the casing by an assembly means and only extending over sectors of a circle, wherein the bearer parts comprise hooks provided with opposite grooves giving support to at least two of the rings, the rings including sealing rings alternating with stator rings carrying fixed blades, the stator rings being joined to the bearer parts by portions extending over their outer side in a radial direction,
- wherein the assembly means comprises one or more tenons for each bearer part and mortises made in the casing and occupied by the tenons.
A stator housing comprising:
- a casing and bearer parts for rings on an inner surface of the casing, the bearer parts being separate from the casing, joined to the casing by an assembly means and only extending over sectors of a circle, wherein the bearer parts comprise hooks provided with opposite grooves giving support to at least two of the rings, the rings including sealing rings alternating with stator rings carrying fixed blades, the stator rings being joined to the bearer parts by portions extending over their outer side in a radial direction,
- wherein the bearer parts are hooks of a single type with widened ends, each supporting a stator ring carrying fixed blades, and are distributed in circular rows in identical number to said stator rings carrying fixed blades, the sealing rings having ends that are either positioned on portions of the stator rings borne by the hooks, or which fit into the grooves of the hooks.
A stator housing comprising:
- a casing and bearer parts for rings on an inner surface of the casing, the bearer parts being separate from the casing, joined to the casing by an assembly means and only extending over sectors of a circle, wherein the bearer parts comprise hooks provided with opposite grooves giving support to at least two of the rings, the rings including sealing rings alternating with stator rings carrying fixed blades, the stator rings being joined to the bearer parts by portions extending over their outer side in a radial direction, and
- a jacket inside the casing, separated from the casing by a space and formed of a continuous sheet through which the bearer parts pass at points where the jacket is pierced.
Dependencies are inferred from the claim text.