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1. (WO2010072968) TURBINE ENGINE ROTOR WHEEL WITH BLADES MADE OF A COMPOSITE MATERIAL PROVIDED WITH A SPRING RING
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/072968 International Application No.: PCT/FR2009/052655
Publication Date: 01.07.2010 International Filing Date: 22.12.2009
IPC:
F04D 29/34 (2006.01) ,F01D 11/18 (2006.01) ,F01D 5/30 (2006.01) ,F01D 5/28 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
D
NON-POSITIVE-DISPLACEMENT PUMPS
29
Details, component parts, or accessories
26
Rotors specially adapted for elastic fluids
32
for axial-flow pumps
34
Blade mountings
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
D
NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
11
Preventing or minimising internal leakage of working fluid, e.g. between stages
08
for sealing space between rotor blade tips and stator
14
Adjusting or regulating tip-clearance, i.e. distance between rotor-blade tips and stator casing
16
by self-adjusting means
18
using stator or rotor components with predetermined thermal response, e.g. selective insulation, thermal inertia, differential expansion
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
D
NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
5
Blades; Blade-carrying members; Heating, heat-insulating, cooling, or antivibration means on the blades or the members
30
Fixing blades to rotors; Blade roots
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
D
NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
5
Blades; Blade-carrying members; Heating, heat-insulating, cooling, or antivibration means on the blades or the members
12
Blades
28
Selecting particular materials; Measures against erosion or corrosion
Applicants:
SNECMA [FR/FR]; 2 boulevard du Général Martial Valin F-75015 Paris, FR (AllExceptUS)
BLANCHARD, Stéphane [FR/FR]; FR (UsOnly)
GENDRAUD, Alain [FR/FR]; FR (UsOnly)
Inventors:
BLANCHARD, Stéphane; FR
GENDRAUD, Alain; FR
Agent:
BOURA, Olivier; Cabinet BEAU DE LOMENIE 158 rue de l'Université F-75340 Paris Cedex 07, FR
Priority Data:
085899923.12.2008FR
Title (EN) TURBINE ENGINE ROTOR WHEEL WITH BLADES MADE OF A COMPOSITE MATERIAL PROVIDED WITH A SPRING RING
(FR) ROUE MOBILE DE TURBOMACHINE A AUBES EN MATERIAU COMPOSITE MUNIE D'UN ANNEAU RESSORT
Abstract:
(EN) The invention relates to a turbine engine rotor wheel with blades made of a composite material, comprising a mounting flange (4), a plurality of blades (16) made of a composite material mounted on the mounting flange, each blade having a root (20) at the top provided with sealing elements (22), a guide disk (28) attached coaxially around the mounting flange and including, on the outer periphery thereof, a plurality of axial slots open at one end, each slot having a cross-section matching the cross-section of a blade root (18) in order to hold the latter angularly by shape engagement, and a spring ring (38) with a variable diameter partially inserted in an axial notch (26) formed in each blade root and projecting axially relative to the latter, the spring ring being suitable for radially engaging with an inner surface (34a) of the guide disk during a radial movement of the blades towards the outside of the mounting flange.
(FR) L'invention concerne une roue mobile de turbomachine à aubes en matériau composite, comportant un flasque de montage (4), une pluralité d'aubes (16) en matériau composite montées sur le flasque de montage, chaque aube ayant un talon (20) en sommet muni de léchettes (22), un disque d'orientation (28) fixé coaxialement autour du flasque de montage et comprenant à sa périphérie extérieure une pluralité de fentes axiales ouvertes à une extrémité, chaque fente présentant une section transversale adaptée à la section transversale d'un pied (18) d'aube afin de le maintenir angulairement par coopération de forme, et un anneau ressort à diamètre variable (38) logé en partie dans une encoche axiale (26) formée dans chaque pied d'aube et faisant saillie axialement par rapport à celui-ci, l'anneau ressort étant apte à venir en butée radiale contre une surface interne (34a) du disque d'orientation lors d'un déplacement radial des aubes vers l'extérieur du flasque de montage.
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: French (FR)
Filing Language: French (FR)
Also published as:
US20110268561