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Machine translation
1. (WO2004094789) CENTER-LOCATED CUTTER TEETH ON SHROUDED TURBINE BLADES
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2004/094789    International Application No.:    PCT/US2004/011708
Publication Date: 04.11.2004 International Filing Date: 15.04.2004
IPC:
F01D 5/20 (2006.01), F01D 11/12 (2006.01)
Applicants: GENERAL ELECTRIC COMPANY [US/US]; 1 River Road, Schenectady, NY 12345 (US)
Inventors: URBAN, John, Paul; (US)
Agent: MITCHELL, James, W.; General Electric Company, 3135 Easton Turnpike (W3C), Fairfield, CT 06828 (US)
Priority Data:
10/418,116 18.04.2003 US
Title (EN) CENTER-LOCATED CUTTER TEETH ON SHROUDED TURBINE BLADES
(FR) DENTS DE FRAISE CENTRALE SUR PALES DE TURBINE RENFORCEES
Abstract: front page image
(EN)The shroud (12) includes a seal (24) extending continuously between leading and trailing edges of the shroud at the tip of the airfoil. A cutter tooth (32) is provided substantially medially of the shroud and in substantial radial alignment with a line through the center of mass of the airfoil (12). In this manner, any moment arm generated by movement of the shroud is eliminated or minimized to reduce the stresses in the fillet region between the shroud and the airfoil tip and hence increase the creep life of the bucket.
(FR)Le carénage (12) comprend un joint d'étanchéité (24) s'étendant en continu entre les bords d'attaque et arrière du carénage prévu à l'extrémité de la surface portante. Une dent de fraise (32) est prévue sensiblement en position médiane par rapport au carénage et de manière alignée sensiblement radialement par rapport à une ligne traversant le centre de la masse de la surface portante. Ainsi, tout moment généré par le mouvement du carénage est éliminé ou réduit au minimum en vue de la réduction des contraintes dans la zone du flanc de raccord située entre le carénage et la pointe de la surface portante, ce qui augmente la durée de vie utile de résistance au fluage de l'aube.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, 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, HU, IE, IT, LU, MC, NL, PL, PT, RO, SE, SI, SK, 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)