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1. (WO2019063909) ROTOR BLADE FOR A TURBOMACHINE
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Pub. No.: WO/2019/063909 International Application No.: PCT/FR2018/052273
Publication Date: 04.04.2019 International Filing Date: 17.09.2018
IPC:
F01D 5/22 (2006.01) ,F01D 11/12 (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
5
Blades; Blade-carrying members; Heating, heat-insulating, cooling, or antivibration means on the blades or the members
12
Blades
22
Blade-to-blade connections, e.g. by shrouding
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
Applicants:
SAFRAN AIRCRAFT ENGINES [FR/FR]; 2 boulevard du Général Martial Valin 75015 Paris, FR
Inventors:
PATEL, Vijeay; FR
DOUGLAS, Pragash; FR
EVRARD, Guillaume; FR
LIEVOUX, Quentin Bruno Guy André Emile; FR
Agent:
CAMUS, Olivier; FR
Priority Data:
175892927.09.2017FR
Title (EN) ROTOR BLADE FOR A TURBOMACHINE
(FR) AUBE DE ROTOR POUR UNE TURBOMACHINE
Abstract:
(EN) A turbomachine rotor blade comprising a radially outer end equipped with a heel, the heel being provided with at least one sealing wiper (3), the or each sealing wiper (3) projecting beyond the heel along a first axis (z), the first axis (z) being at ± 15° with respect to a radial direction, and extending along a second axis (x), substantially perpendicular to the first axis (z), between a first upper-surface end and a second lower-surface end, the or each sealing wiper (3) having a first upstream side and a second downstream side as well as a radially outer surface, the blade being characterised in that the or each sealing wiper (3) comprises a base (7) attached to the heel and an end piece (8) removably interlocked with the base (7).
(FR) Aube de rotor de turbomachine comportant une extrémité radialement externe munie d'un talon, le talon étant pourvu d'au moins une léchette d'étanchéité (3), la ou chaque léchette d'étanchéité (3) faisant saillie du talon suivant un premier axe (z), le premier axe (2 ) étant à ± 15° selon une direction radiale, et s'étendant suivant un deuxième axe (x), sensiblement perpendiculaire au premier axe (z), entre une première extrémité extrados et une deuxième extrémité intrados, la ou chaque léchette d'étanchéité (3) présentant un premier côté amont et un deuxième côté aval ainsi qu'une surface radialement externe, l'aube étant caractérisée en ce que la ou chaque léchette d'étanchéité (3) comporte une base (7) fixée au talon et un embout (8) imbriqué de manière amovible avec la base (7).
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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, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, 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)