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1. (WO2017154257) TURBINE NOZZLE
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Pub. No.: WO/2017/154257 International Application No.: PCT/JP2016/080707
Publication Date: 14.09.2017 International Filing Date: 17.10.2016
IPC:
F01D 9/02 (2006.01) ,F01D 9/04 (2006.01) ,F01D 11/00 (2006.01) ,F01D 25/24 (2006.01) ,F02C 7/28 (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
9
Stators
02
Nozzles; Nozzle boxes; Stator blades; Guide conduits
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
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
11
Preventing or minimising internal leakage of working fluid, e.g. between stages
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
25
Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
24
Casings; Casing parts, e.g. diaphragms, casing fastenings
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
C
GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
7
Features, component parts, details or accessories, not provided for in, or of interest apart from, groups F02C1/-F02C6/158; Air intakes for jet-propulsion plants
28
Arrangement of seals
Applicants:
株式会社IHI IHI CORPORATION [JP/JP]; 東京都江東区豊洲三丁目1番1号 1-1, Toyosu 3-chome, Koto-ku, Tokyo 1358710, JP
Inventors:
渡邉 文章 WATANABE Fumiaki; JP
Agent:
三好 秀和 MIYOSHI Hidekazu; JP
高橋 俊一 TAKAHASHI Shunichi; JP
伊藤 正和 ITO Masakazu; JP
高松 俊雄 TAKAMATSU Toshio; JP
Priority Data:
2016-04815711.03.2016JP
Title (EN) TURBINE NOZZLE
(FR) TUYÈRE DE TURBINE
(JA) タービンノズル
Abstract:
(EN) Tapered surface sections 21f, 22f are formed on inner-side surfaces of base sections 21a, 22a facing a flow path 14 at an outer band part 21 and an inner band part 22 of one of turbine stator blades 11, said turbine stator blades 11 being formed by a ceramic matrix composite material of two stator blade segments 10 which are disposed adjacent to each other with a space S therebetween. The tapered surface sections 21f, 22f are shaped into tapered surfaces which approach respective outer-side surfaces as the surfaces extend toward the tips of the base sections 21a, 22a, that is, toward end faces 21d, 22d. Thus, the thicknesses of the base sections 21a, 22a are smaller at the end faces 21d, 22d than at bent part sides connecting to a blade section 20 such that the depth of a dead space connecting to the flow path 14 is reduced.
(FR) Selon l'invention, des sections de surface effilées 21f, 22f sont formées sur des surfaces du côté interne de sections de base 21a, 21b faisant face à un chemin d'écoulement 14 au niveau d'une partie de bande extérieure 21 et d'une partie de bande intérieure 22 d'une des pales 11 de stator de turbine, lesdites pales 11 de stator de turbine étant formées par un matériau composite à matrice en céramique de deux segments de pale de stator 10 qui sont disposés l'un à côté de l'autre avec un espace S entre eux. Les sections de surfaces effilées 21f, 22f ont la forme de surfaces effilées qui s'approchent de surfaces du côté extérieur respectives à mesure que les surfaces s'étendent vers les pointes des sections de base 21a, 22a, c'est-à-dire vers les faces d'extrémité 21d, 22d. Ainsi, les épaisseurs des sections de base 21a, 22a sont plus petites au niveau des faces d'extrémité 21d, 22d qu'au niveau de côtés de la partie coudée se raccordant à une section de pale 20 de telle sorte que la profondeur d'un espace mort se raccordant au chemin d'écoulement 14 soit réduite.
(JA) 隙間Sを挟んで隣り合う2つの静翼セグメント10のセラミックス基複合材料で形成したタービン静翼11のうち一方のタービン静翼11のアウタバンド部21やインナバンド部22における基部21a,22aのフローパス14に臨む内側面に、テーパ面部21f,22fを形成した。このテーパ面部21f,22fは、基部21a,22aの先端、即ち、端面21d,22dに向かうにつれて外側面に近づくテーパ面の形状を有している。このため、基部21a,22aの肉厚が端面21d,22dにおいて、翼部20に連なる折曲部分側よりも薄くなり、フローパス14に連なるデッドスペースの深さが小さくなる。
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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, KE, KG, 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)