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1. (WO2019008656) TURBINE BLADE AND TURBINE
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Pub. No.: WO/2019/008656 International Application No.: PCT/JP2017/024441
Publication Date: 10.01.2019 International Filing Date: 04.07.2017
IPC:
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
18
Hollow blades; Heating, heat-insulating, or cooling means on blades
Applicants:
東芝エネルギーシステムズ株式会社 TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION [JP/JP]; 神奈川県川崎市幸区堀川町72番地34 72-34, Horikawa-cho, Saiwai-ku, Kawasaki-shi, Kanagawa 2120013, JP
Inventors:
松田 寿 MATSUDA Hisashi; JP
内田 竜朗 UCHIDA Tatsuro; JP
富永 純一 TOMINAGA Junichi; JP
谷川 慎次 TANIGAWA Shinji; JP
猪亦 麻子 INOMATA Asako; JP
大石 勉 OOISHI tsutomu; JP
前田 秀幸 MAEDA Hideyuki; JP
関根 悟 SEKINE Satoru; JP
Agent:
特許業務法人サクラ国際特許事務所 SAKURA PATENT OFFICE, P.C.; 東京都千代田区内神田一丁目18番14号 ヨシザワビル Yoshizawa Bldg., 18-14, Uchikanda 1-chome, Chiyoda-ku, Tokyo 1010047, JP
Priority Data:
Title (EN) TURBINE BLADE AND TURBINE
(FR) AUBE DE TURBINE ET TURBINE
(JA) タービン翼及びタービン
Abstract:
(EN) This turbine blade (34) is provided with: a plurality of cooling holes (47) formed in the turbine blade (34), each of the cooling holes (47) having an inflow opening (47a), an outflow opening, and a flow passage (47b) which is formed between the inflow opening (47a) and the outflow opening, the cooling holes (47) allowing a cooling medium to flow therethrough; and a cavity (49) for allowing the cooling medium to flow into the plurality of cooling holes (47) so as to be distributed thereover. Each of the inflow opening (47a) has a curved surface section (Sa) where the opening area of the inflow opening (47a) gradually decreases toward the flow passage (47b), and the curved surface section (Sa) has a protruding shape in a cross-section along the cooling hole (47).
(FR) Cette aube de turbine (34) comporte: une pluralité de trous de refroidissement (47) formés dans l'aube de turbine (34), chacun des trous de refroidissement (47) ayant une ouverture d'entrée (47a), une ouverture de sortie, et un passage d'écoulement (47b) qui est formé entre l'ouverture d'entrée (47a) et l'ouverture de sortie, les trous de refroidissement (47) permettant à un milieu de refroidissement de s'écouler à travers l'aube; et une cavité (49) permettant au milieu de refroidissement de s'écouler dans la pluralité de trous de refroidissement de façon à être répartis sur l'aube. Chacune de l'ouverture d'entrée (47a) a une section de surface incurvée (Sa) où la zone d'ouverture de l'ouverture d'entrée (47a) diminue progressivement vers le passage d'écoulement (47b), et la section de surface incurvée (Sa) a une forme saillante dans une section transversale le long du trou de refroidissement (47).
(JA) タービン翼(34)の内部に形成され、流入側開口部(47a)と流出側開口部と、前記流入側開口部(47a)と前記流出側開口部との間に形成された流路部(47b)とを有し、内部を冷却媒体が流通する冷却孔(47)と、前記冷却媒体を、複数の前記冷却孔(47)に分散させて流入させるキャビティ(49)と、を備えたタービン翼(34)であって、前記流入側開口部(47a)が、前記流路部(47b)側に向けて徐々に開口面積が減少する曲面部(Sa)を有し、前記曲面部(Sa)の形状が、前記冷却孔(47)に沿った断面において凸状である。
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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: Japanese (JA)
Filing Language: Japanese (JA)