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1. WO2020128397 - PREFORM WITH ONE-PIECE WOVEN FIBROUS REINFORCEMENT FOR INTER-BLADE PLATFORM

Publication Number WO/2020/128397
Publication Date 25.06.2020
International Application No. PCT/FR2019/053261
International Filing Date 20.12.2019
IPC
B29B 11/16 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
11Making preforms
14characterised by structure or composition
16comprising fillers or reinforcements
D03D 25/00 2006.01
DTEXTILES; PAPER
03WEAVING
DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
25Woven fabrics not otherwise provided for
F01D 11/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
DNON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
11Preventing or minimising internal leakage of working fluid, e.g. between stages
CPC
B29B 11/16
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
11Making preforms
14characterised by structure or composition
16comprising fillers or reinforcement
F01D 11/008
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
11Preventing or minimising internal leakage of working-fluid, e.g. between stages
005Sealing means between non relatively rotating elements
006Sealing the gap between rotor blades or blades and rotor
008by spacer elements between the blades, e.g. independent interblade platforms
F05D 2220/36
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
2220Application
30in turbines
36specially adapted for the fan of turbofan engines
F05D 2230/21
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
2230Manufacture
20essentially without removing material
21by casting
F05D 2240/80
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
2240Components
80Platforms for stationary or moving blades
F05D 2300/603
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
2300Materials; Properties thereof
60Properties or characteristics given to material by treatment or manufacturing
603Composites; e.g. fibre-reinforced
Applicants
  • SAFRAN [FR]/[FR]
Inventors
  • OBERT, Enrico, Giovanni
  • COUPE, Dominique, Marie, Christian
  • COLOT, Marc-Antoine
  • AUBERT, Fabrice, Michel, François, René
  • MICHELSEN, Pierre, Martin
Agents
  • BARBE, Laurent
  • DELAHAYE, Jean-Baptiste
  • ALEXANDRINE, Nathalie
Priority Data
187373821.12.2018FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) PREFORM WITH ONE-PIECE WOVEN FIBROUS REINFORCEMENT FOR INTER-BLADE PLATFORM
(FR) PREFORME AVEC UN RENFORT FIBREUX TISSE EN UNE SEULE PIECE POUR PLATEFORME INTER AUBE
Abstract
(EN)
The invention relates to a preform (30) with a fibrous reinforcement woven in one piece by three-dimensional weaving to create a fan inter-blade platform which comprises an aerodynamic base (2) and a fixing structure (4) comprising stiffening elements (11) which extend from the aerodynamic base, the preform comprising: - a first fibrous part (31) intended to form the aerodynamic base, - second fibrous part (32) intended to at least partially form the stiffening elements of the inter-blade platform, - a first connection zone (33) in which the first and second parts are woven together, and - a first disconnection zone (34) delimited by a first disconnection line (46) extending in a transverse direction and in which the first and second parts are separated from one another, the first disconnection zone being adjacent to the first connection zone in a longitudinal direction L.
(FR)
L'invention concerne une préforme (30) avec un renfort fibreux tissé en une seule pièce par un tissage tridimensionnel pour la réalisation d'une plateforme inter-aube de soufflante qui comprend une base aérodynamique (2) et une structure de fixation (4) comportant des éléments raidisseurs (11) lesquels s'étendent depuis la base aérodynamique, la préforme comprenant : - une première partie fibreuse (31) destinée à former la base aérodynamique, - une deuxième partie fibreuse (32) destinée à former au moins en partie les éléments raidisseurs de la plateforme inter-aube, - une première zone de liaison (33) dans laquelle les première et deuxième parties sont tissées conjointement, et - une première zone de déliaison (34) délimitée par une première ligne de déliaison (46) s'étendant suivant une direction transversale et dans laquelle les première et deuxième parties sont séparées l'une de l'autre, la première zone de déliaison étant adjacente à la première zone de liaison suivant une direction longitudinale L.
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