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1. (WO2017039572) TURBINE AIRFOIL HAVING FLOW DISPLACEMENT FEATURE WITH PARTIALLY SEALED RADIAL PASSAGES
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2017/039572 International Application No.: PCT/US2015/047335
Publication Date: 09.03.2017 International Filing Date: 28.08.2015
IPC:
F01D 5/14 (2006.01) ,F01D 5/18 (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
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
Applicants:
SIEMENS AKTIENGESELLSCHAFT [DE/DE]; Werner-von-Siemens-Straße 1 80333 München, DE
Inventors:
MARSH, Jan H.; US
SANDERS, Paul A.; US
Agent:
BASU, Rana; US
Priority Data:
Title (EN) TURBINE AIRFOIL HAVING FLOW DISPLACEMENT FEATURE WITH PARTIALLY SEALED RADIAL PASSAGES
(FR) SURFACE PORTANTE DE TURBINE POSSÉDANT UN ÉLÉMENT DE DÉPLACEMENT D'ÉCOULEMENT À PASSAGES RADIAUX PARTIELLEMENT ÉTANCHES
Abstract:
(EN) A turbine airfoil (10) includes a flow displacement element (26A-B, 26A'-B') positioned in an interior portion (11) of an airfoil body (12) between a pair of adjacent partition walls (24) and comprising a radially extending elongated main body (28). The main body (28) is spaced from the pressure and suction side walls (16, 18) and further spaced from one or both of the adjacent partition walls (24), whereby a first near wall passage (72) is defined between the main body (28) and the pressure side wall (16), a second near wall passage (74) is defined between the main body (28) and the pressure side wall (18) and a central channel (76) is defined between the main body (28) and a respective one of the adjacent partition walls (24). The central channel (76) is connected to the near wall passages (72, 74) along a radial extent. One or more radial ribs (64) are positioned in the central channel (76) that extend partially across the central channel (76) between the main body (28) and the respective adjacent partition wall (24).
(FR) Une surface portante de turbine (10) comprend un élément de déplacement d'écoulement (26A-B, 26A '-B') positionné dans une partie intérieure (11) d'un corps de surface portante (12) entre une paire de parois de séparation adjacentes (24) et comprenant un corps principal allongé s'étendant radialement (28). Le corps principal (28) est espacé des parois latérales de pression et d'aspiration (16, 18) et également de l'une ou des deux parois de séparation adjacentes (24), un premier passage proximal à la paroi (72) est défini entre le corps principal (28) et la paroi latérale de pression (16), un second passage proximal à la paroi (74) est défini entre le corps principal (28) et la paroi latérale de pression (18), et un canal central (76) est défini entre le corps principal (28) et une paroi respective parmi les parois de séparation adjacentes (24). Le canal central (76) est relié aux passages proximaux aux parois (72, 74) le long d'une étendue radiale. Une ou plusieurs nervures radiales (64) sont positionnées dans le canal central (76) et s'étendent partiellement dans le canal central (76) entre le corps principal (28) et la paroi de séparation adjacente respective (24).
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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: English (EN)
Filing Language: English (EN)