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Pub. No.: WO/2013/124171 International Application No.: PCT/EP2013/052588
Publication Date: 29.08.2013 International Filing Date: 08.02.2013
IPC:
F01D 5/14 (2006.01) ,F01D 9/04 (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
14
Form or construction
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
9
Stators
02
Nozzles; Nozzle boxes; Stator blades; Guide conduits
04
forming ring or sector
Applicants: SIEMENS AKTIENGESELLSCHAFT[DE/DE]; Wittelsbacherplatz 2 80333 München, DE
Inventors: SHEPHERD, Andrew; GB
Priority Data:
12156540.222.02.2012EP
Title (EN) TURBINE NOZZLE SEGMENT
(FR) SEGMENT DE BUSE DE TURBINE
Abstract:
(EN) A turbine nozzle segment of a turbo machine is provided. The turbine nozzle segment includes a platform for supporting one or more aerofoils. The platform has a guiding surface for guiding a main fluid flow of the turbo machine. A first section of the platform is formed so as to provide guidance of the main fluid flow along a flow path given by the shape of the guiding surface. A second downstream section of the plat- form is configured such that the guiding surface is at least at a trailing edge spaced apart from an extrapolation of the guiding surface in the first section in the direction of the main fluid flow. The second section of the platform comprises a discontinuity in the guiding surface or in the curvature of the guiding surface for providing said spacing, wherein the discontinuity extends substantially perpendicular to the flow path of the main fluid flow (20).
(FR) L'invention concerne un segment de buse de turbine d'une turbomachine. Le segment de buse de turbine comprend une plate-forme pour supporter un ou plusieurs plans aérodynamiques. La plate-forme a une surface de guidage pour guider un écoulement de fluide principal de la turbomachine. Une première section de la plate-forme est formée de manière à assurer le guidage de l'écoulement de fluide principal le long d'un trajet d'écoulement donné par la forme de la surface de guidage. Une seconde section en aval de la plaque-forme est configurée de telle sorte que la surface de guidage est au moins sur un bord de fuite espacé d'une extrapolation de la surface de guidage dans la première section dans la direction de l'écoulement de fluide principal. La seconde section de la plate-forme comprend une discontinuité dans la surface de guidage ou dans la courbure de la surface de guidage pour fournir ledit espacement, la discontinuité s'étendant sensiblement perpendiculairement au trajet d'écoulement du fluide principal (20).
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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, 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, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, 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, 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, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)