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1. (WO2019005425) TURBINE AIRFOIL WITH TRAILING EDGE FEATURES AND CASTING CORE
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Pub. No.: WO/2019/005425 International Application No.: PCT/US2018/035770
Publication Date: 03.01.2019 International Filing Date: 04.06.2018
IPC:
F01D 5/18 (2006.01) ,B22C 9/10 (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
18
Hollow blades; Heating, heat-insulating, or cooling means on blades
B PERFORMING OPERATIONS; TRANSPORTING
22
CASTING; POWDER METALLURGY
C
FOUNDRY MOULDING
9
Moulds or cores; Moulding processes
10
Cores; Manufacture or installation of cores
Applicants:
SIEMENS AKTIENGESELLSCHAFT [DE/DE]; Werner-von-Siemens-Straße 1 80333 München, DE
Inventors:
LEE, Ching-Pang; US
UM, Jae Y.; US
SIW, Sin Chien; US
WAYWOOD, Anthony; US
HOLLOMAN, Harry; US
KOESTER, Steven; US
Agent:
LYNCH, Carly W.; US
Priority Data:
62/527,22930.06.2017US
Title (EN) TURBINE AIRFOIL WITH TRAILING EDGE FEATURES AND CASTING CORE
(FR) PROFIL AÉRODYNAMIQUE DE TURBINE DOTÉ DE CARACTÉRISTIQUES DE BORD DE FUITE ET NOYAU DE COULÉE
Abstract:
(EN) A turbine airfoil (10) includes a trailing edge coolant cavity (40f) located in an airfoil interior (11) between a pressure sidewall (14) and a suction sidewall (16). The trailing edge coolant cavity (40f) is positioned adjacent to and extending out to a trailing edge (20) of the turbine airfoil (10). The interior (11) further includes an internal arrangement (48) comprising an array of discrete fins (22) formed aft of the trailing edge coolant cavity (40f) along the trailing edge (20). The discrete fins (22) form a zigzagging cooling flow passage (50) axially along a chord-wise direction for a cooling fluid (Cf) between the pressure sidewall (14) and the suction sidewall (16). A corresponding casting core is also provided.
(FR) L’invention concerne un profil aérodynamique de turbine (10) qui comprend une cavité (41f) de liquide de refroidissement de bord de fuite située dans un intérieur (11) du profil aérodynamique entre une paroi latérale de pression (14) et une paroi latérale d'aspiration (16). La cavité de refroidissement de bord de fuite (40f) est positionnée de manière adjacente à un bord de fuite (20) du profil aérodynamique de turbine et s'étend vers l'extérieur de celui-ci. L'intérieur (11) comprend en outre un agencement interne (48) comprenant un réseau d'ailettes discrètes (22) formées à l'arrière de la cavité de liquide de refroidissement de bord de fuite (40f) le long du bord de fuite (20). Les ailettes discrètes (22) forment un passage d'écoulement de refroidissement en zigzag (50) axialement le long d'une direction de corde pour un fluide de refroidissement (Cf) entre la paroi latérale de pression (14) et la paroi latérale d'aspiration (16). L'invention concerne également un noyau de coulée correspondant.
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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: English (EN)
Filing Language: English (EN)