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1. (WO2015044592) CLEARANCE LIMITING DEVICE FOR A TURBOMACHINE AND METHOD FOR REMOVING A CARTRIDGE
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2015/044592 International Application No.: PCT/FR2014/052399
Publication Date: 02.04.2015 International Filing Date: 25.09.2014
IPC:
F01D 11/16 (2006.01) ,F01D 11/12 (2006.01) ,F01D 25/24 (2006.01)
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
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
12
using a rubstrip, e.g. erodible, deformable or resiliently biased part
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
25
Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
24
Casings; Casing parts, e.g. diaphragms, casing fastenings
Applicants:
SNECMA [FR/FR]; 2 boulevard du Général Martial Valin Paris, 75015, FR
Inventors:
SCHWEBLEN, Wilfried, Lionel; FR
PELLATON, Bernard; FR
Agent:
CAMUS, Olivier; FR
Priority Data:
135920525.09.2013FR
Title (EN) CLEARANCE LIMITING DEVICE FOR A TURBOMACHINE AND METHOD FOR REMOVING A CARTRIDGE
(FR) DISPOSITIF DE LIMITATION DE JEU POUR TURBOMACHINE ET PROCÉDÉ DE DÉMONTAGE D'UNE CARTOUCHE
Abstract:
(EN) The invention concerns a device (20, 30) for limiting clearance between a rotor (3) and a stator (2) of a turbomachine comprising: • - a cartridge (21) comprising at least one right-hand lateral lug and one left-hand lateral lug (22); • - a mounting support (SI) forming a transverse cross-section of a ring and comprising a right-hand side wall (14) having at least one right-hand lateral groove (11, 12) and a left-hand side wall (15) having at least one left-hand lateral groove (11, 12), the right-hand lateral groove being intended to receive a right-hand lateral lug (22) and the left-hand lateral groove being intended to receive a left-hand lateral lug (22), each lateral groove (11, 12) comprising: • o a first part (111, 114) allowing a radial displacement of a lug (22), the dimension of said first part defining a radial clearance area of the cartridge (21); • o a second part (110, 113) allowing a circumferential displacement of a lug (22); at least one of the two lateral grooves also comprising a third part (112) allowing the radial insertion of a lug (22).
(FR) L'invention concerne un dispositif (20,30) de limitation de jeu entre un rotor (3) et un stator (2) d'une turbomachine comportant : • - une cartouche (21) comprenant au moins un ergot latéral droit et un ergot latéral gauche (22); • - un support d'encastrement (SI) formant une section transversale d'un anneau et comportant une paroi latérale droite (14) présentant au moins une gorge latérale droite (11,12) et une paroi latérale gauche (15) présentant au moins une gorge latérale gauche (11,12), la gorge latérale droite étant destinée à recevoir un ergot latéral droit (22) et la gorge latérale gauche étant destinée à recevoir un ergot latéral gauche (22), chaque gorge latérale (11,12) comprenant : • o une première partie (111,114) permettant un déplacement radial d'un ergot (22), la dimension de ladite première partie définissant une zone de jeu radial de la cartouche (21); • o une deuxième partie (110,113) permettant un déplacement circonférentiel d'un ergot (22); au moins une des deux gorges latérales comprenant également une troisième partie (112) permettant l'insertion radiale d'un ergot (22).
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, 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, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, 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, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, 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, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: French (FR)
Filing Language: French (FR)