Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2017142011) SEALING DEVICE AND ROTARY MACHINE
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2017/142011 International Application No.: PCT/JP2017/005688
Publication Date: 24.08.2017 International Filing Date: 16.02.2017
IPC:
F16J 15/453 (2006.01) ,F01D 5/20 (2006.01) ,F01D 11/02 (2006.01) ,F01D 11/12 (2006.01) ,F02C 7/28 (2006.01) ,F04D 29/12 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
J
PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS
15
Sealings
44
Free-space packings
447
Labyrinth packings
453
characterised by the use of particular materials
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
20
Specially-shaped blade tips to seal space between tips and stator
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
02
by non-contact sealings, e.g. of labyrinth type
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
08
for sealing space between rotor blade tips and stator
12
using a rubstrip, e.g. erodible, deformable or resiliently biased part
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
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
D
NON-POSITIVE-DISPLACEMENT PUMPS
29
Details, component parts, or accessories
08
Sealings
10
Shaft sealings
12
using sealing-rings
Applicants:
三菱日立パワーシステムズ株式会社 MITSUBISHI HITACHI POWER SYSTEMS, LTD. [JP/JP]; 神奈川県横浜市西区みなとみらい三丁目3番1号 3-1, Minatomirai 3-Chome, Nishi-ku, Yokohama-shi, Kanagawa 2208401, JP
Inventors:
尾▲崎▼ 昂平 OZAKI Kohei; JP
上原 秀和 UEHARA Hidekazu; JP
吉田 亜積 YOSHIDA Azumi; JP
西川 豊治 NISHIKAWA Toyoharu; JP
小西 英治 KONISHI Eiji; JP
西本 慎 NISHIMOTO Shin; JP
Agent:
森 隆一郎 MORI Ryuichirou; JP
志賀 正武 SHIGA Masatake; JP
高橋 詔男 TAKAHASHI Norio; JP
山崎 哲男 YAMASAKI Tetsuo; JP
松沼 泰史 MATSUNUMA Yasushi; JP
Priority Data:
2016-02700416.02.2016JP
Title (EN) SEALING DEVICE AND ROTARY MACHINE
(FR) DISPOSITIF D'ÉTANCHÉITÉ ET MACHINE TOURNANTE
(JA) シール装置及び回転機械
Abstract:
(EN) A sealing device (50) according to the present invention seals a gap between the outer peripheral surface of a rotor and the inner peripheral surface of a stator, and is provided with: a sealing ring (51) which is provided to the stator and has, on the surface facing the rotor, a free-cutting material (56) in which projecting parts (56A) and recessed parts (56B) are formed alternately in an axial direction (Da); a plurality of radial fins (52) protruding radially outward from the outer peripheral surface of the rotor; and an oblique fin (55) protruding from the outer peripheral surface of the rotor toward both ends, in the axial direction (Da), of the free-cutting material (56) of the sealing ring (51), obliquely from the outside of said both ends.
(FR) L'invention concerne un dispositif d'étanchéité (50) qui assure l'étanchéité d'un espace entre la surface périphérique extérieure d'un rotor et la surface périphérique intérieure d'un stator et qui est pourvu : d'une bague d'étanchéité (51) qui est disposée sur le stator et qui comprend, sur la surface faisant face au rotor, un matériau de décolletage (56) dans lequel des parties saillantes (56A) et des parties renfoncées (56B) sont formées en alternance dans une direction axiale (Da) ; d'une pluralité d'ailettes radiales (52) faisant saillie radialement vers l'extérieur depuis la surface périphérique extérieure du rotor ; d'une ailette oblique (55) faisant saillie sur la surface périphérique extérieure du rotor vers les deux extrémités, dans la direction axiale (Da), du matériau de décolletage (56) de la bague d'étanchéité (51), obliquement depuis l'extérieur desdites deux extrémités.
(JA) 本願発明に係わるシール装置(50)は、ロータの外周面と、ステータの内周面との間の隙間をシールするシール装置(50)であって、前記ステータに設けられて、前記ロータに対向する面に凸部(56A)と凹部(56B)とが軸線方向(Da)に交互に形成された快削材(56)を有するシールリング(51)と、前記ロータの外周面から径方向外側に突出する複数の径方向フィン(52)と、前記ロータの外周面から、前記シールリング(51)の快削材(56)における前記軸線方向(Da)の両端に向かって該両端の外側から斜めに突出する斜め方向フィン(55)と、を備える。
front page image
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, 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)